Safety Instructions
Features & Specifications
Block Diagram
Wiring Diagram
Disassembly
Schematic & Component Diagrams
Bill of Material
Pin Descriptions
Exploded View Diagram
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing,
by the constant improvement of product.
Page 2
I. Safety Instru ctions
CAUTION
RISK OF ELECTRIC SHOCK
DO NO T OPEN
The l ightning fla sh w ith arro whead symb ol,
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous
voltage” within the prod uct’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
CAUTIO N: TO REDUCE THE RISK OF ELECTRIC
SHO CK, DO NOT REMOVE COVER (OR BACK). NO
USER-SERVI CEABLE PART S INSIDE. REFER
SERVICING TO QUALIFI ED SERVICE PERSONNEL
O NLY.
PRECAUTIONS DURING SERVICING
1. In a ddition to safety, other parts and assemblies are
speci fied for conformance with such regulations as
those applyi ng to spurious radiation. These must
also be replaced only with specified replacements.
Exampl es: RF converters, tuner units, antenna
selection switches, RF cables, noise-blocking
capacitors, noise-bl ocking filters, etc.
2. Use sp ecified internal Wiring. Note especially:
1) Wires covered with PVC tubing
2) Do uble insulated wires
3) Hig h voltage leads
3. Use specified i nsulating materials for hazardous
live pa rts. Note especially:
1) In sulating Tape
2) PVC tubing
3) Spa cers (insulating barriers)
4) Insulating sheets for transistors
5) Plastic screws for fixing micro switches
4. When replacing AC primary side compo nents
(tran sformers, power cords, n oise blocking
capacitors, e tc.), wrap ends of wires securely about
the te rminals before soldering.
5. Make sure that w ires do not contact heat generating
parts (he at sinks, oxide metal film resistors, fusible
resistors, etc.)
6. Check if replace d wires do not contact sharply edged
or po inted parts.
7. Make sure that foreign objects (screws, solder
drop lets, etc.) do not remain insi de the set.
MAKE YOUR CONTRIBUTION TO PROTECT THE
ENVIR ONMENT
Used batteries with the ISO symbol
for recycling a s well as small
accumu lators (rechargeable batteries), mini-batteries
(cell s) and starter batteries should not be thrown
into the garbage can.
Please leave them at an appropriate depot.
The excla mation po int wi thin a n equilateral
tri angle is intended to a lert th e user to the
presence of important operating and maintenance
(servici n g) instr u ct i o n s i n th e liter a tu re
accompanying the appliance.
W ARNING:
Before servicing this TV receiver, read the X-RAY
RADIATION PRECAUTION, SAFETY INSTRUCTION
and PRODUCT SAFETY NOTICE.
X-RA Y RADIATION PRECAUTION
1. Excessively high can prod uce potentially hazardous
X-RAY RADIATION. T o avoid such hazards, the high
volta ge must not exceed the specified limit. The
normal va lue of the high voltage of this TV receiver
is 2 7 KV at zero bean current (minimum brightness).
The high voltage must not exceed 30 KV under any
circu mstances. Each time when a re ceiver requires
servici ng, the high voltage should be checked. The
readi ng of the high voltage is re commended to be
reco rded as a part of the service record, It is
important to u se an accurate and reliable high
voltage meter.
2. The only source of X-RAY RADIATION in this TV
receiver is the picture tube. For con tinued X-RAY
RADIATION protectio n, the replacement tube must be
exactly the sa me type as specified in th e parts list.
3. Some parts in this TV receiver have special safety
related characteristics fo r X-RADIATION protection.
For continued safety, the parts replacement should
be under taken only afte r referring the PRODUCT
SAFETY NOTICE.
SAFETY IN STRUCTION
The se rvice should not be attempted by anyone
unfamiliar with the ne cessary instructions on this TV
receiver. The fo llowing are the necessary instructions
to be ob served before servicing.
1. An isolation transformer shoul d be connected in the
power li ne between the receiver and the AC line
when a service is performed on the primary of the
conve rter transformer of the set.
2. Comply wi th all caution and safety related provided
on th e back of the cabinet, inside the cabinet, on the
chassis or p icture tube.
3. T o avoid a shock hazard, always discharge the
pictu re tube's anode to the chassis g round before
removi ng the anode cap.
-2-
Page 3
4. Completely discharge the high potential voltage of the
picture tube before handli ng. The picture tube is a
vacuum and if bro ken, the glass will explode.
5. When rep lacing a MAIN PCB in the cabinet, always
be certai n that all protective are installed properly
such as control knobs, adjustment co vers or shields,
barri ers, isolation resistor networks etc.
6. When se rvicing is required, observe the original lead
dressing. Extra precau tion should be given to assure
correct lead dressing in the high voltage area.
7. Keep wires away from high voltage or high te mpera
ture components.
8. Befo re returning the set to the customer, al ways
perform an AC leaka ge current check on the exposed
meta llic parts of the cabinet, such as anten nas,
termin als, screwheads, metal overlay, control shafts,
etc., to be sure the set is safe to operate without
danger of electrica l shock. Plug the AC line cord
directly to the AC outlet (do not use a line isolation
transformer d uring this check). Use an AC voltmeter
havin g 5K ohms volt sensitivity or more in the
following manner.
Conne ct a 1.5K ohm 10 watt resistor paralleled by a
0.15µF AC type capacito r, between a good earth
ground (water pipe, conductor etc.,) and the exposed
metallic parts, one at a time.
Measure the AC vol tage across the combination of
the 1 .5K ohm resistor and 0.15 uF capacitor. Reverse
the AC p lug at the AC outlet and repeat the AC
volta ge measurements for each exposed metallic
part.
The me asured voltage must not exceed 0.3V RMS.
This correspo nds to 0.5mA AC. Any value exceeding
this limit constitutes a potential shock hazard and
must be corrected immediately.
The resistance measurement should be done
betwe en accessible exposed metal parts and power
cord plug prongs with the power switch "ON". The
resi stance should be more than 6M ohms.
PRODUCT SA FETY NOTICE
Many e lectrical and mechanical parts in this TV
receiver have special safety-related characteristics.
These characteristics are offer passed unnoticed by
visual spection and the protection afforded by them
cannot necessari ly be obtained by using replacement
compon ents rates for a higher voltage, wattage, etc.
The replacemen t parts which have these special
safety characteristics are identified by marks on
the schematic diagram and on the parts list.
Before replacin g any of these components, read the
parts list in thi s manual carefully. The use of
substitute re placement parts which do not have the
same safety characteristics as specified in the parts
list may cre ate shock, fire, X-RAY RADIATION or
other h azards.
Good earth ground
such as the water
pipe, conductor,
etc.
AC Leak age Current Check
AC VOLTMETER
Place this probe
on eac h e xpos ed metallic
part
-3-
Page 4
V
FEATURES
●POWER SUPPLY:AC 90~264V 50/60Hz
●MULTI TV SYSTEM:NTSC M
●MULTISTANDARD SOUND PROCESSORS:,BTSC+SAP
●MULTI VEDEO SYSTEM:PAL/NTSC/SECAM
●VERSATILE INPUT SOURCES:
TV,AV1,AV2,S-VIDEO,YCbCr,YPbPr,DVI,PC(ANALOG)
●FULL FUNCTION REMOTE CONTROLLER
●EXCELLENT SOUND EFFECT WITH VOLUME,TRABLE, BASS, BALANCE,
VCC is 5V power supply from the power socket VDD is 3.3V digital power supply, +5 is 5V
analog power supply for U1 VPC3230D; VTT is 5V power supply for U2 FI1256M K 2 (TV Tuner)
Ta bl e 2 -1 provides detailed Video Port pin descriptions.
Table 2-1 Video Port Pin Descriptions
NamePin(s)TypeFunction
VCLK71ID 5
VVS74ID 5
VHS75ID 5
VPEN70ID 5
VFIELD69ID 5
VPort Pixel Clock. The VCLK pin is used for video port image capture.
The polarity can be selected by the VCLKPOL bit.
VPort Vertical Sync. Indicates start of next field or frame of input data. This
signal is internally polarity corrected so VVS can be either active-high or
active-low. The current status of the VVS signal is given by VPOL and
VSOK status bits when the video port is selected by the PORTSEL bit.
VVS is not used when a composite digital sync source is used (COMPEN).
VVS is required in ITUR656 input mode.
VPort Horizontal Sync. Indicates start of next line of data input. This signal
is internally polarity corrected and monitored for composite sync content.
The current status of the GHS signal is given by the HPOL, HSOK &
COMP status bits when the video port is selected by the PORTSEL bit.
VHS can supply horizontal sync information or digital composite sync
information depending on the COMPEN bit. VHS is required in ITUR656
input mode.
VPort Pixel Enable. Used when external flow control capture mode is
enabled by the EXTFCE bit. When VPEN is active, the input data is valid.
The polarity can be selected by the PENPOL bit. Use of this pin allows
non-contiguous input data.
VGPort Field Input. Video or Graphics port odd/even field indicator
specifies whether odd or even field of interlaced input is being
captured.This pin is enabled by the FLDSEL bit and the polarity can be
specified by the FLDINV bit. Field information can also be derived from
VVS and VHS, so VFIELD is not required in some applications.
Page 62
Pinout InformationPin Descriptions
Ta bl e 2 -2 provides detailed Graphics Port pin descriptions.
Table 2-2 Graphics Port Pin Descriptions
NamePin(s)TypeFunction
GPort Pixel Clock. The GCLK pin is used for graphics port image
GCLK31ID 5
GVS32ID 5
GPEN34ID 5
GHSSOG33ID 5
capture. The polarity can be selected by the GCKPOL bit.The GCLK
input can be disabled by the GCLKOFF bit to reduce power
consumption.
GPort Vertical Sync. Indicates start of next field or frame of data. This
signal is internally polarity corrected so GVS can be either active-high or
active-low. The current status of the GVS signal is given by VPOL and
VSOK status bits when the graphics port is selected by the PORTSEL bit.
GVS is not used when a composite digital sync source is used which can
be specified by the SOGSEL and COMPEN bits.
GPort Pixel Enable. Used when external flow control capture mode is
enabled by the EXTFCE bit. When GPEN is active, the input data is valid.
The polarity can be selected by the GPENPOL bi t. Use of this pin allows
non-contiguous input data.
GPort Horizontal Sync/GPort Sync-on-Green. This pin has two different
functions depending on the SOGSEL bit:
SOGSELGHSSOG Function
GHS: GPort Horizontal Sync. Indicates the start of the next line of
input data. This signal is internally polarity corrected and monitored
for composite sync content. The current status of the GHS signal is
given by the HPOL, HSOK & COMP status bits when the graphics
0
port is selected by the PORTSEL bit. GHS can supply horizontal
sync information or digital composite sync information depending on
the COMPEN and SOGSEL bits.
SOG: Pin is sync-on-green. Driven by an external sync stripper
circuit, this pin is monitored (SOGACT status bit) and can supply
1
composite sync information (depending on SOGSEL & COMPEN
bits).
GCOAST36OS
GFBK35ID 5
GPort PLL Coast. Tells the PLL when to coast (ignore GREF) during
vertical blanking. Used to prevent the PLL from reacting to extra or missing
HS pulses during vertical blanking. Coast duration and polarity is
programmable through the PLLCM, PLLCB & PLLCE bits.
GPort PLL Feedback / Line Advance Input.
• When PORTSEL=0, this pin is not used.
• When PORTSEL=1, this pin has two different functions depending on the
EXTFCE bit:
EXTFCEGFBK Function
GFBK: An input that is typically driven by the FBK output of an ADC/
PLL device. In free running capture mode this signal is used to define
the horizontal capture region (along with the CAPL and CAPW
0
registers), and advances the GPort capture controller to the next
input line. The LAVPOL bit is used to select the polarity of GFBK.
GLAV: An input to the graphics port line advance. Used in external
flow control capture mode. When GLAV transitions (depending on
1
LAVPOL and LAVMOD bits), the GPort capture controller advances
to the next input line.
Page 63
Pin DescriptionsPinout Information
Table 2-2 Graphics Port Pin Descriptions (continued)
NamePin(s)TypeFunction
GRE020ID 5
GRE121ID 5
GRE222ID 5
GRE323ID 5
GRE424ID 5
GRE525ID 5
GRE626ID 5
GRE727ID 5
GGE010ID 5
GGE111ID 5
GGE212ID 5
GGE313ID 5
GGE414ID 5
GGE515ID 5
GGE618ID 5
GGE719ID 5
GBE02ID 5
GBE13ID 5
GBE24ID 5
GBE35ID 5
GBE46ID 5
GBE57ID 5
GBE68ID 5
GBE79ID 5
GPort Red Pixel Data. GPort Red Even Pixel Data when in 48-bit input
mode.
GPort Green Pixel Data. GPort Green Even Pixel Data when in 48-bit input
mode.
GPort Blue Pixel Data. GPort Blue Even Pixel Data when in 48-bit input
mode.
Ta bl e 2 -3 provides detailed Display/Graphics Port pin descriptions.
Table 2-3 Display/Graphics Port Pin Descriptions
NamePin(s)TypeFunction
DGR0136 I/O SR5
DGR1135 I/O SR5
DGR2134 I/O SR5
DGR3133 I/O SR5
DGR4132 I/O SR5
DGR5131 I/O SR5
DGR6130 I/O SR5
DGR7129 I/O SR5
DGPort Red Pixel Data. In dual pixel output mode these pins are the ODD
red outputs. In single pixel output mode these pins are not used.
Page 64
Pinout InformationPin Descriptions
Table 2-3 Display/Graphics Port Pin Descriptions (continued)
NamePin(s)TypeFunction
DGG0128 I/O SR5
DGG1127 I/O SR5
DGG2126 I/O SR5
DGG3125 I/O SR5
DGG4122 I/O SR5
DGG5121 I/O SR5
DGG6120 I/O SR5
DGG7119 I/O SR5
DGB0118 I/O SR5
DGB1117 I/O SR5
DGB2116 I/O SR5
DGB3115 I/O SR5
DGB4114 I/O SR5
DGB5113 I/O SR5
DGB6112 I/O SR5
DGB7111 I/O SR5
DGPort Green Pixel Data. In dual pixel output mode these pins are the
ODD green outputs. In single pixel output mode these pins are not used.
DGPort Blue Pixel Data. In dual pixel output mode these pins are the ODD
blue outputs. In single pixel output mode these pins are not used.
Ta bl e 2 -4 provides detailed Display Port pin descriptions.
Table 2-4 Display Port Pin Descriptions
NamePin(s)TypeFunction
DPort Pixel Clock. Output clock for the display port pixel data. DCLK is
enabled by the DCLKEN bit and can be inverted by the DCPOL bit. DCLK
DCLK106OSR
DCLKNEG107OSR• DPort Pixel Clock.
DVS108OS
DHS109OS
can be set to run at ½ pixel rate, for dual pixel output mode, by setting the
DCK2EN bit. The DCLK output can be disabled by the DCLKOFF bit
to reduce power consumption.
DPort Vertical Sync. DVS can be either active-high or active-low
depending on the VSPOL bit. Width and timing is controlled by the VPLSE
and VDLY registers.
DPort Vertical Sync. DHS can be either active-high or active-low
depending on the HSPOL bit. Sync width can be controlled by the HPLSE
register.
Page 65
Pin DescriptionsPinout Information
Table 2-4 Display Port Pin Descriptions (continued)
NamePin(s)TypeFunction
DEN110OS
DR0103OSR
DR1102OSR
DR2101OSR
DPort Pixel Enable. This signal is active whenever valid data is present.
The polarity is specified by the DENPOL bit.
DR3100OSR
DR499OSR
DR598OSR
DR697OSR
DR796OSR
DG095OSR
DG194OSR
DG293OSR
DG392OSR
DG491OSR
DG590OSR
DG689OSR
DG788OSR
DPort Red Pixel Data. In dual pixel output mode these pins are the EVEN
red outputs.
DPort Green Pixel Data. In dual pixel output mode these pins are the
EVEN green outputs. These pins can also be used in conjunction with the
PORTB pins for higher color depth.
DB083 OSR
DB182 OSR
DB281 OSR
DB380 OSR
DB479 OSR
DB578 OSR
DB677 OSR
DB776 OSR
DPort Blue Pixel Data. In dual pixel output mode these pins are the EVEN
blue outputs.
Page 66
Pinout InformationPin Descriptions
Ta bl e 2 -5 provides detailed Microprocessor Interface pin descriptions.
Ta bl e 2 -6 provides detailed Peripheral Interface pin descriptions.
Table 2-6 Peripheral Interface Pin Descriptions
NamePin(s)TypeFunction
General-purpose I/O port bit controlled by PADAT0 and PAEN0. This pin
PORTA0207 I/O U5
PORTA1206 I/O U5
PORTA2205 I/O U5
PORTA3204 I/O U5
PORTA4203 I/O U5
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN0=0, PORTA1 is microprocessor address
bit 0 (A0).
General-purpose I/O port bit controlled by PADAT1 and PAEN1. This pin
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN1=0, PORTA1 is microprocessor bytehigh enable (BHEN)
General-purpose I/O port bit controlled by PADAT2 and PAEN2. This pin
has one other possible function when GREFEN=1.
When GREFEN=1 and PAEN2=0, PORTA2 is GPort PLL reference out, a
delayed version of internal horizontal sync (typically connected to the
external PLLs reference input) (GREF)
General-purpose I/O port bit controlled by PADAT3 and PAEN3. This pin
can also function as an external clock source for DCLK (DCLKEXT) when
the internal PLLs are disabled.
General-purpose I/O port bit controlled by PADAT4 and PAEN4. This pin
has one other possible function when IREN=1.
When IREN=1 and PAEN4=1, this pin can function as an input to the onchip IR receiver 0. (IRRCVR0)
General-purpose I/O port bit controlled by PADAT5 and PAEN5. This pin
has other possible functions depending on the IREN, EIEN registers.
PORTA5202 I/O U5
PORTA6201 I/O U5
PORTA7200 I/O D5
PORTB057 I/O D5
PORTB158 I/O D5
• When EIEN=1 and PAEN5=1, this pin can function as an external
interrupt to the on-chip CPU.
• When IREN=1 and PAEN5=1, this pin can function as an input to the onchip IR receiver 1. (IRRCVR1). .
General-purpose I/O port bit controlled by PADAT6 and PAEN6. This pin
can also function as BLKSPL when BLKSMPLEN=1.
• When BLKSMPLEN=1 and PAEN6=0, PORTA6 is GPORT black sample
clamp pulse output (typically used as port of an external DC restoration
circuit) (BLKSPL) This pin has one other possible function when
PREF1EN=1.
• When PREF1EN=1 and PAEN6=0, PORTA6 is a variable duty-cycle
pulse reference generator (PWM) output controlled by PREF1HI and
PREF1LO.
General-purpose I/O port bit controlled by PADAT7 and PAEN7. This pin
has one other possible function when PREF0EN=1.
When PREF0EN=1 and PAEN7=0, PORTA7 is a variable duty-cycle pulse
reference generator (PWM) output controlled by PREF0HI and PREF0LO.
General purpose I/O port bit controlled by PBDAT0 and PBEN0. PORTB0
can also function as GRO0 when in 48 bit graphics input mode; VR0 when
in 24 bit RGB video input mode; Y0 when in 24 bit YUV video input mode.
General purpose I/O port bit controlled by PBDAT1 and PBEN1. PORTB1
can also function as GRO1 when in 48 bit graphics input mode; VR1 when
in 24 bit RGB video input mode; Y1 when in 24 bit YUV video input mode.
General purpose I/O port bit controlled by PBDAT2 and PBEN2. PORTB2
can also function as:
PORTB259 I/O D5
PORTB360 I/O D5
FunctionWhen in
DB1EDual-pixel 27-bit output mode
DB030-bit output mode
GRO248-bit graphics input mode
VR224-bit RGB video input mode
Y224-bit YUV video input mode
Cb030-bit YCbCr input mode (CSCD30BIT).
General purpose I/O port bit controlled by PBDAT3 and PBEN3. PORTB3
can also function as:
PORTC039 I/O D5General purpose I/O port controlled by PCDAT(7:0) and PCEN(7:0).
PORTC140 I/O D5
PORTC241 I/O D5
PORTC342 I/O D5
PORTC443 I/O D5
PORTC544 I/O D5
PORTC645 I/O D5
PORTC746 I/O D5
RXD67I/O U5
TXD68I/O U5
PORTC(7:0) can also function as:
FunctionWhen
GBO(7:0)48-bit graphics input mode
VB(7:0) 24-bit RGB video input mode
U(7:0) 24-bit YUV video input mode
UV(7:0) 16-bit YUV video input mode
Serial Receive Data. RXD is the serial receive data for the on-chip serial
port. This pin can also function as the 2-wire master data pin when
2WMEN=16.
Serial Transmit Data. TXD is the serial transmit data for the on-chip serial
port. This pin can also function as the 2-wire master clock output pin when
2WMEN=16.
Ta bl e 2 -7 provides detailed Miscellaneous pin descriptions.
Table 2-7 Miscellaneous Pin Descriptions
NamePin(s)TypeFunction
TESTEN142ID 5Test Mode Enable. Connect to ground for normal operation.
Bidirectional reset pin. This pin requires a pull-up resistor to V33 (VDDQ3).
The typical value is 3.3K ohm.
RESET_N139BOD
EXTRSTEN28ID 5
XI169I
XO170OCrystal Output. Connect to external crystal.
Ta bl e 2 -8
provides detailed Microprocessor Debug Port pin descriptions.
• When EXTRSTEN=1, RESET_N is an input.
• When EXTRSTEN=0, RESET_N is an output. In either case a low
indicates reset.
External Reset Enable.
• When EXTRSTEN=1, the internal reset is disabled and an external reset
must be supplied on the RESET_N pin.
• When EXTRSTEN=0, the internal reset is enabled and RESET_N
becomes a bidirectional pin that can be used to either drive external logic
in the system or receive an external reset signal.
Crystal Input. Connect to external crystal. XI can also function as the
MCLK input LVTTL-level signal from an external oscillator.
Table 2-8 Microprocessor Debug Port Pin Descriptions
NamePin(s)TypeFunction
TRST_N147ID 5Debug port reset (low true). Leave floating if debug port is not being used.
TCK146ID 5
TMS145ID 5Debug port mode select. Leave floating or pull to ground to disable.
TDI144ID 5Debug port serial data in. Leave floating if debug port is not being used.
TDO143 I/O D5Debug port serial data out. Leave floating if debug port is not being used.
Debug port serial data clock. Leave floating if debug port is not being
used.
Page 71
Pin DescriptionsPinout Information
Ta bl e 2 -9 provides detailed Power and Ground pin descriptions.
Ta bl e 2 -1 provides detailed pin descriptions for the Video Port.
Table 2-1 Video Port Pin Descriptions
NamePin(s)Typ eFunction
Primary Video (PV) Port horizontal sync input. Indicates start of next line of input data.
PVHS28I
PVVS27I
This signal is internally polarity corrected (PVHS_POL) so PVHS can be either activehigh or active-low. [Input, pull-down, 5V-tolerant]
Primary Video (PV) Port vertical sync input. Indicates start of next field or frame of
input data. This signal is internally polarity corrected (PVVS_POL) so PVVS can be
either active-high or active-low. [Input, pull-down, 5V-tolerant]
Video input clock reference. [Input, pull-down, 5V-tolerant]
• cref_mode = 1
PVCLK
CREF
CREF26I
PVCLK25I
SVVS12I
SVHS11I
SVCLK13I
VR, VG, VB
0
1
samp li n g poi n ts
N-1
N
• cref_mode = 0
PVCLK
CREF
VR, VG, VB
01N-1
sampling points
Primary Video (PV) Port pixel clock input. [Input, pull-down, 5V-tolerant]
Secondary Video (SV) Port (ITU-R BT656 format) vertical sync input. Indicates start of
next field or frame of input data. This signal is internally polarity corrected (svvs_pol)
so SVVS can be either active-high or active-low. [Input, pull-down, 5V-tolerant]
Secondary Video (SV) Port (ITU-R BT656 format) horizontal sync input. This signal is
internally polarity corrected (svhs_pol) so SVHS can be either active-high or activelow. [Input, pull-down, 5V-tolerant]
Secondary Video (SV) Port (ITU-R BT656 format) pixel clock input. [Input, pull-down,
5V-tolerant]
N
Page 74
Pinout InformationPin Descriptions
Table 2-1 Video Port Pin Descriptions (continued)
NamePin(s)Typ eFunction
VR030I
VR131I
VR232I
VR333I
VR435I
VR536I
VR637I
VR738I
Video port red data input. These pins have different functions depending on the
settings of the PVmode register. [Input, pull-down, 5V-tolerant]
Primary Video (PV) Port
UV[7:0]: ITU-R BT601 YUV 4:2:2 UV pixel data.
Primary Video (PV) Port.
R[7:0]: red pixel data or
V[7:0]: ITU-R BT601 YUV 4:4:4 pixel data.
VG015I
VG116I
VG217I
VG318I
VG420I
VG521I
VG622I
VG723I
VB01I
VB12I
VB23I
VB34I
VB46I
VB57I
VB68I
VB79I
Video port green data input. These pins have different functions depending on the
settings of the Primary Video (PV) Port mode registers. [Input, pull-down, 5V-tolerant]
Primary Video (PV) Port.
G[7:0]: green pixel data or
Y[7:0]: ITU-R BT601 YUV 4:4:4 pixel data.
Video port blue data input. These pins have different functions depending on the
settings for the Primary Video (PV) Port mode registers. [Input, pull-down, 5V-tolerant]
PV_modeVB[7:0] Pin Function
00Reserved.
01
10
11
Secondary Video (SV) Port
YUV[7:0]: ITU-R BT656 format pixel data.
Primary Video (PV) Port.
B[7:0]: blue pixel data or
U[7:0]: ITU-R BT601 YUV 4:4:4 pixel data.
2.2.2Digital/Graphics (DG) Port Pins
Ta bl e 2 -2 provides detailed pin descriptions for the Digital/Graphics (DG) Port.
Table 2-2 Digital/Graphics (DG) Port Pin Descriptions
NamePin(s)Typ eFunction
DGS67I
DGHS66I
DGCLK68I
Digital/Graphics (DG) port vertical sync.
[Tri-state output, 4mA drive, 5V-tolerant]
Digital/Graphics (DG) port horizontal sync.
[Tri-state output, 4mA drive, 5V-tolerant]
Digital/Graphics (DG) port pixel clock.
[Tri-state output, 8mA drive, 5V-tolerant]
Page 75
Pin DescriptionsPinout Information
Table 2-2 Digital/Graphics (DG) Port Pin Descriptions (continued)
NamePin(s)Typ eFunction
DGR091I
DGR192I
DGR294I
DGR395I
DGR497I
DGR598I
DGR699I
DGR7100I
DGG081I
DGG182I
DGG283I
DGG384I
DGG486I
DGG587I
DGG688I
DGG789I
DGB070I
DGB171I
DGB272I
DGB373I
DGB475I
DGB576I
DGB678I
DGB779I
Digital/Graphics (DG) port red data. [Bi-directional, input with pull-down, tri-state 4mA
drive output, 5V-tolerant]
DGR[7:0] Pin Function
Digital/Graphics (DG) Port input (single pixel mode).
R[7:0]: red pixel data or
V[7:0]: YUV 4:4:4 pixel data.
Digital/Graphics (DG) port green data. [Bi-directional, input with pull-down, tri-state
4mA drive output, 5V-tolerant]
DGG[7:0] Pin Function
Digital/Graphics (DG) Port input (single pixel mode).
G[7:0]: green pixel data or
Y[7:0]: YUV 4:4:4 pixel data.
Digital/Graphics (DG) port blue data. [Bi-directional, input with pull-down, tri-state 4mA
drive output, 5V-tolerant]
DGB[7:0] Pin Function
Digital/Graphics (DG) Port input (single pixel mode).
B[7:0]: blue pixel data or
U[7:0]: YUV 4:4:4 pixel data.
2.2.3System Power Pins
Ta bl e 2 -3 provides detailed pin descriptions for System Power.
Table 2-3 System Power Pin Descriptions
NamePin(s)Typ eFunction
5, 34, 93,
VDD
VSS
123, 140,
175, 205,
235
19, 49,
77, 112,
134, 187,
219, 251
Digital core power (2.5V).
P
Digital core ground.
G
Page 76
Pinout InformationPin Descriptions
Table 2-3 System Power Pin Descriptions (continued)
Analog power supply (+2.5V) for the analog display port.
Analog ground for the analog display port.
Digital power supply (+2.5V) for the analog display port.
Digital ground for the analog display port.
Guard ring power for the analog display port.
Guard ring ground for the analog display port.
Page 77
Pin DescriptionsPinout Information
2.2.4Miscellaneous Pins
Ta bl e 2 -4 provides detailed descriptions for Miscellaneous Pins.
Table 2-4 Miscellaneous Pin Descriptions
NamePin(s)Typ eFunction
XTALI40I
XTALO41O
RESETn55I
CGMS146I
TCK50I
TDI51I
TDO48O
TMS52I
TRSTn53I
TEST56I
TESTCLK144I
NC 201-
NC
62, 63,
194,195
Crystal oscillator input. Connect to an external 10MHz crystal.
Crystal oscillator output. Connect to an external 10MHz crystal.
Hardware asynchronous reset. The signal is active low. Must be continuously asserted
for a minimum of 100 µs after power-up to satisfy the SDRAM power-up requirement.
[Input, Schmitt trigger, pull-up, 5V-tolerant]
CGMS Enable
Debug port test data clock. TCK provides the clock input for the Test Bus (also known
as the Test Access Port).
Debug port test data in. TDI transfers serial test data into VISTA. TDI provides the
serial input necessary for JTAG specification support.
Debug port test data out. TDO transfers serial test data out of VISTA. TDO provides
the serial input necessary for JTAG specification support.
Debug port test mode select. TMS is a JTAG specification support signal used by
debug tools.
Debug port test reset. TRSTn resets the Test Access Port (TAP) logic. TRSTn must be
driven low during power on RESETn.
Test mode. Active high. Must be low during normal operation. [Input, pull-down, 5Vtolerant]
Used for testing, can be used to supply display clock. [Input, pull-down, 5V-tolerant]
No connect.
No connect.
-
2.2.5Host Interface Pins
Ta bl e 2 -5 provides detailed pin descriptions for the Host Interface.
Table 2-5 Host Interface Pin Descriptions
NamePin(s)Typ eFunction
2WCLK45I
2WDAT47I/O
2WA143I
2WA244I
Clock signal of two-wire serial bus. [Input, pull-up, 5V-tolerant]
Data signal of two-wire serial bus. [Bi-directional, tri-state 4mA drive output, 5Vtolerant]
Programmable two-wire serial bus address bit 1. [Input, pull-down, 5V-tolerant]
Programmable two-wire serial bus address bit 2. [Input, pull-down, 5V-tolerant]
2.2.6Memory Pins
Ta bl e 2 -6 provides detailed pin descriptions for Memory.
Table 2-6 Memory Pin Descriptions
NamePin(s)Typ eFunction
MCLK229O
MCLKFB223I
SDRAM clock. This signal is rising edge active. [Tri-state output, 8mA drive,
5V-tolerant]
SDRAM clock feedback. For latching in read data. [Input, 5V-tolerant]
Page 78
Pinout InformationPin Descriptions
Table 2-6 Memory Pin Descriptions (continued)
NamePin(s)Typ eFunction
MRAS225O
MCAS226O
MWE227O
MA0213O
MA1210O
MA2207O
MA3204O
MA4203O
MA5206O
MA6209O
MA7211O
MA8214O
MA9217O
MA10215O
MA11220O
MA12221O
MA13218O
MD0255I/O
MD1252I/O
MD2248I/O
MD3245I/O
MD4242I/O
MD5239I/O
MD6236I/O
MD7232I/O
MD8231I/O
MD9234I/O
MD10238I/O
MD11241I/O
MD12244I/O
MD13247I/O
MD14250I/O
MD15254I/O
SDRAM row address strobe. This signal is active low. [Tri-state output, 8mA drive,
5V-tolerant]
SDRAM column address strobe. This signal is active low. [Tri-state output, 8mA drive,
5V-tolerant]
SDRAM write enable. This signal is active low. [Tri-state output, 8mA drive,
5V-tolerant]
SDRAM address bus. Multiplexed row and column address and bank select. Row
addresses use MA[11:0] for 8MB SDRAM and MA[10:0] for 2MB SDRAM. Column
addresses use MA[7:0]. [Tri-state output, 8mA drive, 5V-tolerant]
Note: MA10 is a control signal during column address charging and pre-charging.
For 8MB SDRAM the bank select pins ba0 and ba1 should be connected to MA12 and
MA13, respectively. For 2MB SDRAM, connect ba0 to MA12.
SDRAM data bus. [Bi-directional, tri-state 8mA drive output, pull-up, 5V-tolerant]
2.2.7Digital Display Output Port Pins
Ta bl e 2 -7 provides detailed pin descriptions for the Digital Display Output Port.
Table 2-7 Digital Display Output Port Pin Descriptions
NamePin(s)Typ eFunction
DVS103O
DHS104O
DCLK102O
Digital display output port vertical sync. [Tri-state output, 4mA drive, 5V-tolerant]
Digital display output port horizontal sync. [Tri-state output, 4mA drive, 5V-tolerant]
Digital display output port pixel clock. [Tri-state output, 8mA drive, 5V-tolerant]
Page 79
Pin DescriptionsPinout Information
Table 2-7 Digital Display Output Port Pin Descriptions (continued)
REDIN Analog Input Red analog input 54
GRNIN Analog Input Green analog input 48
BLUIN Analog Input Blue analog input 43
SOGIN Analog Input Sync on Green analog input 49
CLAMP Digital CMOS Input External Clamp Input 38
HSYNC Digital CMOS Input Horizontal SYNC Input 30
VSYNC Digital CMOS Input Vertical SYNC Input 31
COAST Digital CMOS Input Hold PLL Frequency, do not track HSYNC 29
SCL Digital CMOS Input Serial Interface clock 56
SDA Digital CMOS Input/Output Serial Interface data pin 57
A0 Digital CMOS Input Serial interface address pin 55
R [7:0] Digital CMOS 3-state Output Red output data 70-77
G [7:0] Digital CMOS 3-state Output Green output data 2-9
B [7:0] Digital CMOS 3-state Output Blue output data 12-19
DCK Digital CMOS 3-state Output Output data clock 67
HSOUT Digital CMOS 3-state Output HSYNC output 66
VSOUT Digital CMOS 3-state Output VSYNC output 64
SOG
Digital CMOS 3-state Output SYNC on Green Slicer Output 65
Special handling is required for Flash Memory products
in FBGA packages.
Flash memory devices in FBGA packages may be
damaged if exposed to ultrasonic cleaning methods.
The package and/or data integrity may be
compromised if the package bod y is exposed to
temperatures above 150°C for prolonged periods of
time.
PIN CONFIGURATION
A0–A18=19 addresses
DQ0–DQ14 = 15 data inputs/outputs
DQ15/A-1= DQ15 (data input/output, word mode),
Note: *DIP and SOIC pin configurations are identical.
0%2%3
*
&&
*
+0
*
176
+0
176
&&
&
<
56)
<
.
Notes:
*Voltages referenced to V
operation should be restricted to the limits specified in the DC and AC Characteristicstables or Pin Description section.
(A). Values beyond the maximum ratings listed above may cause damage to the device. Functional
SS
Page 88
PIN DEFINITIONS
Inputs
I2CSEL(Pin1).This pinselects 28h for writing and29h for
reading when this input is Low(0). When the input is
High(1), the device selects 2Ah for writing and 2Bh for
reading.
SEN (Pin 4). This pin enables the signal for the SPI mode
of operation onthe SerialControl Port. Whenthis pinis Low
(0), the SPI port is disabled and the SDO pin is in the highimpedance state. Transitions on the SCK and SDA pins are
ignored. SPI mode operation is enabled when SMS is High
(1).
HIN (Pin 5). For this pin, the Horizontal Sync input signal
at the CMOS level must be supplied. When the device is
used in VIDEO-LOCK mode, the signal pulls the on-chip
VCO within theproper range.The circuituses thefrequency
of this signal, which must be within +
signal can be of either polarity. When used in the H-lock
mode, the VCO phase locks to the rising edge of thissignal.
The HPOLbit of the HPosition registercan be setto operate
with either polarity of input signal. This signal is usually
the H Flyback signal. The timing difference between HIN
rising edge and theleading edge of composite sync (of VIDEO input) is one of the factors which affects the horizontal
position of the display. Any shift resulting from the timing
of this signal can be compensated for with the horizontal
timing value in the H Position Register. H-lock is intended
for use when the part is generating an OSD display when
no video signal is present.
SMS (Pin 6). This pin allows the mode select pin forthe Se-
rial Control Port. When this input is at a CMOS High state
(1), the Serial Control Port operates in the SPI mode. When
the input is Low (0), the Serial Control Port operates in the
2
C slave mode.In SPImode, theSEN pin must be tiedHigh.
I
(See Reset Operation section.)
VIDEO (Pin 7). This pin is a composite NTSC video input,
1.0V p-p (nom), band limited to 600 kHz. The circuit operates with signal variation between 0.7–1.4V p-p. The polarity is sync tips negative. This signal pin should be AC
coupled through a 0.1 µF capacitor, driven by a source impedance of 470 ohms or less.
3% Fh, but the overall
Reset Operation. When the SMS and SEN pins are both in
the Low (0) state, the part is in the Reset state; therefore, in
2
the I
C mode, the SEN pin can be used as an NReset input.
When SPI mode is used, if three wire operation is required,
bothSMSandSENcanbetiedtogetherandusedasthe
NReset input. In either mode, NReset must be held Low (0)
for at least 100 ns.
Input/Output
VIN/INTRO (Pin 13). In external (EXT) vertical lock mode
of operation, the internal vertical sync circuits lock to the
input signal applied at this pin. The part locks to the
V
IN
rising or falling edge of the signal in accordance with the
setting of the V Polarity command. The default is rising
edge. The V
pulse must be at least 2 lines wide.
IN
In INTRO Mode, when configured forinternal vertical synchronization, this pinis an output pin providing an interrupt
signal to the master control device in accordance with the
settings in the Interrupt Mask Register.
SDA (Pin 14). When the Serial Control Port has been set to
2
I
C mode operation, this pin serves as the bidirectional data
line for sending and receiving serial data. In SPI mode operation, the device operates as a serial data input. SPI mode
output data is available on the SDO pin.
Outputs
RED, GREEN, BLUE (Pins 2, 3, 18). These pins are osi-
tive-acting CMOS-level signals.
•Color Mode: Red, Green, and Blue characters are in-
corporated as video outputs for use in a color receiver
•Mono Mode: In this mode, all three outputs carry the
character luminance information
Note: The selection of Color/Mono Mode is user controlled in
bit D
of the Configuration Register (Address=00h). (See
1
Internal Registers section.)
CSync (Pin 8).
tied between this pin and analog ground V
pacitor stores the sync slice level voltage.
Sync slice level. A 0.1 µF capacitor must be
(A). This ca-
SS
SCK (Pin 15). This pin is an input for a serial clock signal
from the master control device. In I
clock rate is expected to be within I
2
C mode operation, the
2
C limits. In SPI mode,
the maximum clock frequency is 10 MHz.
LPF (Pin 9). Loop Filter. A series RC low-pass filter must
be tied between this pin and analog ground VSS(A). There
must also be second capacitor from the pin to V
SS
(A).
Page 89
RREF (Pin 10 ). Reference settingresistor. Resistormust be
10 kOhms, ±2%.
SDO (Pin 16). This pin provides theserial dataoutput when
SPI mode communications have been selected. This pin is
2
not used in I
BOX (Pin 17). Black box keying output is an active High,
C mode operation.
CMOS-level signal used to key in the black box for captions/text displays. This output is in ahigh-impedance state
when the background attribute has been set to semi-transparent.
Power Supply
VSS(Pins 11). These pins are the lowest potential power
pins for the analog and digital circuits. They are normally
tied to system ground.
VDD(Pin 12). The voltage on this pin is nominally 5.0
Volts, and may range between 4.75 to 5.25 Volts with respect to the VSSpins.
Note: The recommended printed circuit pattern for implement-
ing the power connection and critical components is referenced in the Recommended Application Information
sectiononpage49.
Page 90
General Description
The MM74HC374 hi gh speed Octal D-Type Flip-Flops utilize advanced silicon-gate CMOS technology. They possess the high noise im munity and low power consumpti on
of standard CMOS integrated circuits, as well as the ability
to drive 15 LS-TTL loads. Due to the large output drive
capability and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus organized
system.
These devices are positive edge triggered flip- flops. Data
at the D inputs, meeting the setup and hold ti me requirements, are transferred to th e Q outputs on positive going
transitions of the CLOCK (CK) input. When a high logic
level is applied to the OUTPUT CONTROL (OC) input, all
outputs go to a high impedance state, regard less of what
signals are present at the oth er inputs and the state of the
storage elements.
The 74HC logic family i s speed, function, and pinou t compatible with the standard 74 LS logic family. All inputs are
protected from damage due to static discharge by internal
diode clamps to V
and ground.
CC
Features
■ Typical propagation delay: 20 ns
■ Wide operating voltage range: 2–6V
■ Low input current: 1 µA maximum
■ Low quiescent current: 80 µA maximum
■ Compatible with bus-oriented systems
■ Output drive capability: 15 LS-TTL loads
Ordering Code:
Order NumberPackage NumberPackage Description
MM74HC374WMM20B20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MM74HC374SJM20D20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC374MTCMTC2020-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC374NN20A20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to t he ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Top View
Truth Table
OutputClockDataOutput
Control
L↑HH
L↑LL
LLXQ
HXXZ
H = HIGH Level
L = LOW Level
X = Don't Care↑= Transition from LOW-to-HIGH
Z = High Impedance Stat e
= The l evel of the out put before steady state input conditions were
H: Normal operation,
L: Power down (all outputs are Hi-Z)
LVDS swing control.
RSLVDS swing
VCC350mV
::
GND200mV
Page 93
Pin NamePin #TypeDescription
R/F14IN
VCC8, 21Power
CLKIN26INClock in.
GND5, 11, 17, 24, 46GroundGround Pins for TTL inp uts and digital circuitry.
LVDS VCC37PowerPower Supply Pins for LVDS Outputs.
LVDS GND36, 42GroundGround Pins for LVDS Outputs.
PLL VCC29PowerPower Supply Pin for PLL circuitry.
PLL GND28, 30GroundGround Pins for PLL circuitr y.
Input Clock Triggering Edge Select.
H: Rising edge, L: Falling edge
Power Supply Pins for TTL inputs and digital
circuitry.
Absolute Maximum Ratings
Supply Voltage (VCC)
CMOS/TTL Input Voltage
CMOS/TTL Output Voltage
LVDS Driver Output Voltage
1
-0.3V ~ +4.0V
-0.3V ~ (V
-0.3V ~ (V
-0.3V ~ (V
+ 0.3V)
CC
+ 0.3V)
CC
+ 0.3V)
CC
Output Currentcontinuous
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 4sec)
Maximum Power Dissipation @+25
°
C
°
C
+150
°
C
-65 ~ +150
°
C
+260
1.4W
°
C
Electrical Characteristics
CMOS/TTL DC Specifications
VCC = 3.0V ~ 3.6V, Ta = -10 ~ +70
SymbolParameterConditionsMin.Typ.Max.Units
V
I
V
INC
I
PD
I
RS
IH
IL
High Level Input Voltage2.0
Low Level Input VoltageGND0.8V
≤≤
Input Current
Pull Down Current
RS Pull Down Current
0V V
INVCC
R/F pin, VIH=V
RS pin, VIH=V
CC
CC
V
±
CC
10
100
100
°
C
°
C
V
µ
A
µ
A
µ
A
1. “Absolute Maximum Ratings” are those valued beyond which the safety of the device can not be guaranteed. They
are not meant to imply that the device should be operated at these limits. The tables of “Electrical Characteristics”
specify conditions for device operation.
Page 94
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