Page 1
GENERAL DESCRIPTION
PRELIMINARY
P
RELIMINARY
C
USTOMER PRODUCT SPECIFICATION
Z86C47 ROM
CMOS Z8
MICROCONTROLLER
®
8-BIT
Z86C47 ROM
CPS DC-5462-00
The Z86C47 Digital Television Controller (DTC) introduces
a new level of sophistication to single-chip architecture.
The Z86C47 is a member of the Z8® single-chip
microcontroller family with 16 Kbytes of ROM and 236
bytes of RAM. The device is housed in a 64-pin DIP
package, and is CMOS compatible. The part features
ROMs for program storage and character generation. The
Z86C47 microcontroller may be used in prototyping, low
volume applications or where code development is required. Zilog’s DTC offers fast execution, efficient use of
memory, sophisticated interrupts, input/output bit manipulation capabilities, and easy hardware/software system
expansion along with low cost and low power consumption. The device provides an ideal performance and reliability solution for consumer and industrial television applications.
The Z86C47 architecture utilizes Zilog’s advanced
Superintegration™ design methodology. The device has
an 8-bit internal data path controlled by a Z8 microcontroller,
On-Screen Display (OSD) logic circuits/Pulse Width Modulators (PWM). On-chip peripherals include five register/
memory mapped I/O ports (Ports 2, 3, 4, 5, and 6), Interrupt
control logic (1 software, 2 external and 3 internal interrupts) and a standby mode recovery input port (Port 3, pin
P30).
The OSD control circuits support eight rows by 20 columns
for 128 kinds of characters. The character color is specified by row. One of the eight rows is assigned to show two
kinds of colors for bar type displays such as volume
control. The OSD is capable of displaying high resolution
(11 x 15 dot pattern) characters.
DTC applications demand powerful I/O capabilities. The
Z86C47 fulfills this with 35 I/O pins dedicated to input and
output. These lines are grouped into five ports, and are
configurable under software control to provide timing,
status signals, parallel I/O and an address/data bus for
interfacing to external memory.
There are three basic address spaces available to support
this wide range of configurations: Program Memory, Register File and Data Memory. The Data Memory address
space contains a number of control registers for the
PWMs, OSD, and I/O Ports 4, 5, and 6. Specifically, there
are 13 PWM and eight OSD control registers mapped into
the external memory address space. Three I/O registers
for Ports 4, 5, and 6 reside in data memory space as well.
The Register File is composed of 236 bytes of general
purpose register, two I/O Port registers and 15 control and
status registers.
To unburden the program from coping with the real-time
problems such as counting/timing and data communication, the DTC’s offer two on-chip counter/timers with a large
number of user selectable modes (see block diagram).
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.,
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection Circuit Device
Power V
Ground GND V
CC
V
DD
SS
A 14-bit PWM port provides enough voltage resolution for
a voltage synthesizer tuning system. Seven 6-bit PWM
ports are used for controlling audio signal level. Five 8-bit
PWM ports are used to vary picture levels.
DC-5462-00 (7-14-93)
1
Page 2
GENERAL DESCRIPTION (Continued)
PRELIMINARY
Z86C47 ROM
CPS DC-5462-00
XTAL1
XTAL2
/RESET
P30
P31
P34
P35
P36
P40
P41
P42
P43
P44
P45
P46
P47
P50
P51
P52
P53
P54
P55
P56
P57
P60
P61
P62
P63
P64
P65
AFCIN
RESET
Oscillator
WDT
Counter
Timer
Counter
Timer
Port 3/
Interrupt
Port4
Port 5
Port 6
16K Byte
Program ROM
Z8 CPU
Core
256 Byte
Register File
Port 0
A8:15 AD0:7
160 Byte
Character RAM
4 KByte
Character ROM
Port 1
Port 2
PWM 1
14 -bit
PWM 2
to
PWM 8
6-bit
PWM 9
to
PWM 13
8-bit
On-Screen
Display
P27
P26
P25
P24
P23
P22
P21
P20
PWM 1
PWM 2
PWM 3
PWM 4
PWM 5
PWM 6
PWM 7
PWM 8
PWM 9
PWM 10
PWM 11
PWM 12
PWM 13
OSCIN
OSCOUT
HSYNC
VSYNC
VRED
VGREEN
VBLUE
VBLANK
Functional Block Diagram
2
Page 3
PIN CONFIGURATION
PRELIMINARY
Z86C47 ROM
CPS DC-5462-00
PWM5
PWM4
PWM3
PWM2
PWM1
P35
P36
P34
P31
P30
XTAL1
XTAL2
/RESET
P60
GND
P61
P62
VCC
P63
P64
P65
AFCIN
P50
P51
P52
P53
P54
P55
P56
P57
OSCIN
OSCOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Z86C47
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
PWM6
PWM7
PWM8
PWM9
PWM10
PWM11
PWM12
PWM13
P27
P26
P25
P24
P23
GND
P22
P21
VCC
P20
P47
P46
P45
P44
P43
P42
P41
P40
VBLANK
VBLUE
VGREEN
VRED
VSYNC
HSYNC
Z86C47 Mask-ROM Plastic DIP
3
Page 4
ABSOLUTE MAXIMUM RATINGS
PRELIMINARY
Z86C47 ROM
CPS DC-5462-00
Stress greater than those listed under Absolute Maximum
Ratings may cause permanent damage to the device. This
is a stress rating only; operation of the device at any
tions of these specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect device reliability.
condition above those indicated in the operational sec-
Symbol Parameters Min Max Units Notes
V
CC
V
I
V
I
V
O
I
OH
I
OH
I
OL
I
OL
I
OL
T
A
T
STG
Notes:
[1] Port 2 open-drain
[2] PWM open-drain outputs
[3] Port 5
Power Supply Voltage † –0.3 +7 V
Input Voltage –0.3 V
Input Voltage –0.3 V
Output Voltage –0.3 V
+ 0.3 V
CC
+ 0.3 V [1]
CC
+ 8.0 V [2]
CC
Output Current High –10 mA 1 pin
Output Current High –100 mA all total
Output Current Low 20 mA 1 pin
Output Current Low 40 mA [3] (1 pin)
Output Current Low,all total 200 mA
Operating Temperature ††
Storage Temperature –65 +150 C
† Voltage on all pins with respect to GND.
†† See Ordering Information
STANDARD TEST CONDITIONS
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to GND.
Positive current flows into the referenced pin (see Test
Load Diagram).
CAPACITANCE
T
=25°C, V
A
Parameter Max Units
Input capacitance 10 pF
Output capacitance 20 pF
I/O capacitance 25 pF
AFCIN input capacitance 10 pF
=GND=0 V, Freq=1.0 MHz, unmeasured pins to GND.
CC
From Output
Under Test
150 pF
Test Load Diagram
VDD
RLL
RLH
4
Page 5
PRELIMINARY
DC CHARACTERISTICS
T
=0°C to +70°C; V
A
Symbol Parameter Min Max @ 25°C Units Conditions
=+4.5 V to +5.5 V; F
CC
TA=0°C to +70°C Typical
=4 MHz
OSC
Z86C47 ROM
CPS DC-5462-00
V
IL
V
ILC
V
IH
V
IHC
V
HY
V
PU
V
OL
V
00-01
V
01-11
V
OH
I
IR
I
IL
I
OL
I
CC
I
CC1
I
CC2
Notes:
[1] Port 5
[2] PWM Open-Drain
Input Voltage Low 0 0.2 V
Input XTAL/Osc In Low 0.07 V
Input Voltage High 0.7 V
Input XTAL/Osc in High 0.8 V
Schmitt Hysteresis 0.1 V
Maximum Pull-up Voltage 12 V [2]
Output Voltage Low 0.4 0.16 V IOL=1.00 mA
AFC Level 01 In 0.45 V
AFC Level 11 In 0.5 V
Output Voltage High VCC–0.4 4.75 V IOH= –0.75 mA
Reset Input Current –80 –46 µAVRL=0 V
Input Leakage –3.0 3.0 0.01 µA 0 V,V
Tri-State Leakage –3.0 3.0 0.02 µA 0 V,V
Supply Current 20 13.2 mA All inputs at rail
CC
CC
CC
CC
1.48 V
CC
0.98 V External Clock Generator Driven
CC
V
CC
V
CC
3.0 V
3.2 V External Clock Generator Driven
0.8 V
0.4 0.19 V IOL=3.2 mA, [1]
0.4 0.19 V IOL=0.75 mA [2]
1.5 1.00 V IOL=10 mA [1]
1.9 V
CC
0.75 V
CC
3.12 V
CC
CC
6 3.2 mA All inputs at rail
10 0.1 µA All inputs at rail
AC CHARACTERISTICS
Timing Diagrams
1
XTAL1
External Clock
3
7 5
Tin
3
2
2
4
6
Counter Timer
5
Page 6
AC CHARACTERISTICS
Timing diagrams (Continued)
Vcc
IRQn
PRELIMINARY
8 9
Interrupt Request
Z86C47 ROM
CPS DC-5462-00
Internal /RESET
External /RESET
HSYNC
10
Power On Reset
11
12
1413
OSC2
On Screen Display
6
Page 7
PRELIMINARY
Z86C47 ROM
CPS DC-5462-00
AC CHARACTERISTICS
T
=0° C to +70° C; V
A
No Symbol Parameter Min Max Unit
1 TpC Input clock period 250 1000 ns
2 TrC,TfC Clock input raise and fall 15 ns
3 TwC Input clock width 125 ns
4 TwTinL Timer input low width 70 ns
5 TwTinH Timer input high width 3 TpC
6 TpTin Timer input period 8 TpC
7 TrTin,TfTin Timer input raise and fall 100 ns
8A TwIL Int req input low 70 ns
8B TwIL 3 TpC
9 TwIH Int request input high 3 TpC
10 TdPOR Power On Reset delay 25 100 ms
11 TdLVIRES Low voltage detect to 200 ns
12 TwRES Reset minimum width 5 TpC
13 TdHsOI Hsync start to Vosc stop 2 TpV 3 TpV
14 TdHsOh Hsync end to Vosc start 1 TpV
15 TdWDT WDT Refresh Time 12 ms
=+4.5 V to +5.5 V; F
CC
Internal RESET condition
=4 MHz,
OSC
Notes:
[1] Refer to DC Characteristics for details on switching levels.
* Units in nanoseconds
7
Page 8
PRELIMINARY
Z86C47 ROM
CPS DC-5462-00
© 1993 by Zilog, Inc. All rights reserved. No part of this document
may be copied or reproduced in any form or by any means
without the prior written consent of Zilog, Inc. The information in
this document is subject to change without notice. Devices sold
by Zilog, Inc. are covered by warranty and patent indemnification
provisions appearing in Zilog, Inc. Terms and Conditions of Sale
only. Zilog, Inc. makes no warranty, express, statutory, implied or
by description, regarding the information set forth herein or
regarding the freedom of the described devices from intellectual
property infringement. Zilog, Inc. makes no warranty of merchantability or fitness for any purpose. Zilog, Inc. shall not be
responsible for any errors that may appear in this document.
Zilog, Inc. makes no commitment to update or keep current the
information contained in this document.
8
Zilog’s products are not authorized for use as critical components in life support devices or systems unless a specific written
agreement pertaining to such intended use is executed between
the customer and Zilog prior to use. Life support devices or
systems are those which are intended for surgical implantation
into the body, or which sustains life whose failure to perform,
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result in
significant injury to the user.
Zilog, Inc. 210 East Hacienda Ave.
Campbell, CA 95008-6600
Telephone (408) 370-8000
Telex 910-338-7621
FAX 408 370-8056
Loading...