SGS Thomson Microelectronics TDA7503 Datasheet

DUAL DSP PLUS MICRO FOR AUDIO APPLICATIONS
Dual 24-bit40 MIPS DSP Cores 8 bit Microcontroller 4 receive and 5 transmit stereo channels of
Serial Audio Interface Synchronous Serial Interface for communica-
tion with external processor FIFO based mailboxes for inter-processor
communications External Memory Interface to 128Kb SRAM or
1Mb DRAM CORDICco-processor Programmable PLL to suite wide range of ex-
ternalcrystal oscillationfrequencies SPI controlinterface Powerfuldebuginterfaces 1280 words Program Memory for DSP1, 768
words Program Memoryfor DSP0 256 words X and Y Data RAM and Data ROM
for each DSP 256 byte Data RAM for Microcontroller 768 byte Auxiliary RAMfor Microcontroller
BLOCK DIAGRAM
TDA7503
PRODUCT PREVIEW
TQFP100
DESCRIPTION
The device is a high-performance Digital Signal ProcessingIC particularly suitedto Audio applica­tions. The device contains two 24-bit 40 MIPS DSP cores delivering a total of 80 MIPS of DSP processing power. There is also an embedded 8­bit Microcontrollerto handle all control functions. All data and program memories for both DSP cores are on-chip. A variety of highly programma­ble and flexible peripheral blocks for both the Mi­crocontroller and the DSPs have been integrated to form a powerful audio processing system on a single chip.
Host Interface 0
Host Interface1
Serial Audio Interface
XDB0 XAB0
XDB1 XAB1
Synchronous Audio Interface
SRAM/ DRAM Interface
XCHG Interface
Cordic Arithmetic Unit
M8051 CORE
Control
Interface
Interface
Peripheral
Micro Memory Interface
Serial
Watchdog Timer
MCLK
PLL Clock Oscillator
AUX-RAM 768 Bytes
AUX-RAM 256 Bytes
DCLK
YAB0
XDB0
XAB0
DSP0 CORE
YDB0
PAB0
PDB0
X-RAM0 X-ROM0
Y-RAM0 Y-ROM0
P-RAM0 P-ROM0
XDB1
XAB1
DSP1 CORE
YAB1
YDB1
PAB1
PDB1
X-RAM1 X-ROM1
Y-RAM1 Y-ROM1
P-RAM1 P-ROM1
DEBUG Interface
July 1999
This is preliminaryinformation on a new product now in development. Details are subject to change without notice.
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TDA7503
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
DDC
V
DDP
V
I,VIN
T
op
T
stg
PIN CONNECTION
Core DC Supply voltage -0.5 to 5 V Pads DC Supply voltage -0.5 to 6.5 V Digital or analog input voltage -0.5 to (V
+0.5) V
DDP
Operative temperature range -40 to 85 °C Storage temperature range(plastic) -55 to 150 °C
RD(P3.7)
WR(P3.6)
xALE
RAD0(P0.0)
RAD2(P0.2)
RAD1(P0.1)
RAD3(P0.3)
RAD4(P0.4)
RAD5(P0.5)
RAD6(P0.6)
RAD7(P0.7)
RA10(P2.2)
75
VSSI3_CORE4
74
VDDI3_CORE4
73
VSSE5_MI1
72
VDDE5_MI1
71 70
XPSEN
69
RA11(P2.3)
68
RA9(P2.1) RA8(P2.0)
67
RA13(P2.5)
66
RA14(P2.6)
65 64
RA15(P2.7)
63
RA12(P2.4)
62
SRA10/DRA6
61
DRD
60
SRA11/DRA7
59
SRA9/DRA5
58
VDDE5_DR2
57
VSSE5_DR2
56
SRA8/DRA4
55
SRA13/RAS
54
VSSI3_CORE1
53
VDDI3_CORE1
52
DWR
51
ALE/CAS
T1(P3.5)
VDDI3_CORE3
VSSI3_CORE3
RESET
MISO MOSI SCLK
SS/GPIOS
VSSE5_CI1
VDDE5_CI1
LRCKR SCLKR
SDI3 SDI2 SDI1
SDI0 SDO4 SDO3 SDO2 SDO1 SDO0
VSSI3_CORE2
VDDI3_CORE2
SCLKT LRCKT
T0(P3.4)
100 99 98
1 2 3 4 5 6 7 8 9 10
12 13 14 15 16 17 18 19 20
21 22 23
24 25
26 27 28
TXD(P3.1)
RXD(P3.0)
GPIO6(P1.6)
GPIO5(P1.5)
GPIO3(P1.3)
GPIO4(P1.4)
INT0(P3.2)
INT1(P3.3)
97 96 95 94 9293 91 90 89 88 87
29 30 31 32 33
VDDE5_MI2
34 35 36 37 38 39
VSSE5_MI2
GPIO2(P1.2)
GPIO1(P1.1)
GPIO0(P1.0)
86 85 84 83 8182 80 79 78 77 76
40 41 42 43 44
451146 47 48 49 50
XTI
FILT
XTO
VSSE5_SA1
VDDE5_SA1
PGND
PVCC
TESTEN
SCANEN
DBOUT
DBCK/OS1
DBRQN
DBIN/OS0
DBSEL
SRA_D7/DRA3
VDDE5_DR1
SRA_D6/DRA2
SRA_D5/DRA1
SRA_D4/DRA0
VSSE5_DR1
SRA_D3/DRD3
SRA_D2/DRD2
SRA12/DRA8
SRA_D1/DRD1
SRA_D0/DRD0
D97AU693
THERMAL DATA
Symbol Parameter Value Unit
Thermal resistance Junction to Ambient 85 °C/W
2/26
R
th j-amb
PIN DESCRIPTION
TDA7503
N. Name Type
11 LRCKR I Audio Serial Port Receive Left/Right Frame Sync. The Left/Right select
12 SCLKR I Audio Serial Port Receive Bit Clock. SCLK clocks receiveddigital audio
16 SDI0 I StereoDigitalAudioData.SDI0is a stereodigital audiodatainput pin
15 SDI1 I StereoDigitalAudioData.SDI1is a stereodigital audiodatainput pin
14 SDI2 I StereoDigitalAudioData.SDI2is a stereodigital audiodatainput pin
13 SDI3 I Stereo Digital Audio Data / Serial Receive Data. SDI3 is a stereo digital
25 LRCKT I Audio Serial Port Transmit Left/Right Frame Sync /Frame Sync. The
24 SCLKT I Audio Serial Port Transmit Bit Clock/SSI SerialBit Clock. SCLK clocks
21 SDO0 O High StereoDigitalAudio Data. SDO0is a stereodigitalaudiodataoutput pin
20 SDO1 O High StereoDigitalAudio Data. SDO1is a stereodigitalaudiodataoutput pin
19 SDO2 O High StereoDigitalAudio Data. SDO2is a stereodigitalaudiodataoutput pin
18 SDO3 O High StereoDigitalAudio Data. SDO3is a stereodigitalaudiodataoutput pin
17 SDO4 O High Stereo Digital Audio Data /Serial Transmit Data. SDO4 is a stereo digital
34 SCANEN I SCAN Enable.Enable SCAN Path andMUXingofSCANINand SCANOUT
33 TESTEN I Test Enable. Enable Scan Mode Clocks. An active low signal will enable
49 SRA_D0/DRD0 I/O I DSP SRAM Multiplexed Address/Data Line 0/DSP DRAM Data Line
48 SRA_D1/DRD1 I/O I DSP SRAM Multiplexed Address/Data Line 1/DSP DRAM Data Line
47 SRA_D2/DRD2 I/O I DSP SRAM Multiplexed Address/Data Line 2/DSP DRAM Data Line
46 SRA_D3/DRD3 I/O I DSP SRAM Multiplexed Address/Data Line 3/DSP DRAM Data Line
43 SRA_D4/DRA0 I/O O, High DSP SRAM Multiplexed Address/Data Line 4/DSP DRAM Address Line
Reset
Status (1)
Function
signal for received serial audiodata. This signal has a frequency equal to the audio sample rate.
data into pins SDI0, SDI1, SDI2, and SDI3
channel 0.
channel 1.
channel 2.
audio data input pinand is multiplexed with the SSI’s Serial Receive Data Input channel 3.
Left/Right select signal for transmittedserial audio data. This signal has a frequency equal to the audio sample rate. This signal is multiplexed with the SSI’s Frame Sync Input.
digital audio data out of pinsSDO0, SDO1, SD02, SD03, and SD04. This pin is multiplexed with the SSI’s serial bitclock.
channel0.
channel1.
channel2.
channel3.
audio data output pin and is multiplexed with the SSI’s Serial Transmit Data Output channel4.
Pins.
the same clock to all scan chains. This pin also makes all latches transparent.
0.When in SRAM Mode these pins act as the EMI multiplexed address and data line 0. When in DRAM Mode they act as the EMI data line 0.
1.When in SRAM Mode these pins act as the EMI multiplexed address and data line 1. When in DRAM Mode they act as the EMI data line 1.
2.When in SRAM Mode these pins act as the EMI multiplexed address and data line 2. When in DRAM Mode they act as the EMI data line 2.
3.When in SRAM Mode these pins act as the EMI multiplexed address and data line 3. When in DRAM Mode they act as the EMI data line 3.
0. When in SRAM Mode these pins act as theEMI multiplexed address and data line 4. When in DRAM Mode they act as the EMI address line 0.
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TDA7503
PIN DESCRIPTION
N. Name Type
42 SRA_D5/DRA1 I/O O, High DSP SRAM Multiplexed Address/Data Line 5/DSP DRAM Address Line
41 SRA_D6/DRA2 I/O O, High DSP SRAM Multiplexed Address/Data Line 6/DSP DRAM Address Line
40 SRA_D7/DRA3 I/O O, High DSP SRAM Multiplexed Address/Data Line 7/DSP DRAM Address Line
56 SRA8/DRA4 O High DSP SRAM Address Line 8/DSP DRAM Address Line 4. When in SRAM
59 SRA9/DRA5 O High DSP SRAM Address Line 9/DSP DRAM Address Line 5. When in SRAM
62 SRA10/DRA6 O High DSP SRAM Address Line 10/DSP DRAM Address Line 6. When in
60 SRA11/DRA7 O High DSP SRAM Address Line 11/DSP DRAM Address Line 7. When in
50 SRA12/DRA8 O High DSP SRAM Address Line 12/DSP DRAM Address Line 8. When in
55 SRA13/RAS O High DSP SRAM Address Line 13/DRAM Row Address Strobe. When in
51 ALE/CAS O High DSP SRAM Address latch enable/colomn Address. When in SRAM
52 DWR O High DSP SRAM Write Enable/DRAM WriteEnable. This pin serves as the
61 DRD O High DSP SRAM Read Enable/DRAM Read Enable. This pinserves as the
36 DBCK/OS1 I/O I Debug Port Bit Clock/Chip Status 1. The serial clock for the Debug Port
37 DBIN/OS0 I/O I Debug Port Serial Input/Chip Status 0. The serial data input for the
35 DBOUT I/O I Debug Port Serial Output. The serial data output for the Debug Port. Can
38 DBRQN I Debug Port Request Input. Means of entering the Debug mode of
39 DBSEL I Debug Port MUX Selection. Selects either DSP0 or DSP1 to be
67 RA8(P2.0) I/O I Microcontroller High Byte Address Lines.This pin is the address line 8 of
68 RA9(P2.1) I/O I Microcontroller High Byte Address Lines.This pin is the address line 9 of
(continued)
Status (1)
Reset
Function
1. When in SRAM Mode these pins act as theEMI multiplexed address and data line 5. When in DRAM Mode they act as the EMI address line 1.
2. When in SRAM Mode these pins act as theEMI multiplexed address and data line 6. When in DRAM Mode they act as the EMI address line 2.
3. When in SRAM Mode these pins act as theEMI multiplexed address and data line 7. When in DRAM Mode they act as the EMI address line 3.
Mode these pins act as the EMI address line 8.When in DRAM Mode they act as the EMI address line 4.
Mode these pins act as the EMI address line 9.When in DRAM Mode they act as the EMI address line 5.
SRAM Mode these pins act as the EMI address line 10.When in DRAM Mode they act as the EMI address line 6.
SRAM Mode these pins act as the EMI address line 11. When in DRAM Mode they act as the EMI address line 7.
SRAM Mode these pins act as the EMI address line 12. When in DRAM Mode they act as the EMI address line 8.
SRAM Mode this pin acts as the EMI address lines 13. When in DRAM Mode this pin acts as the row address strobe.
Mode this pin acts as the EMI Address Latch Enable. When in DRAM Mode this pin acts as the column address strobe.
write enable for the EMI when in DRAM and SRAM Modes.
read enable for the EMI when in DRAM and SRAM Modes.
is provided when an input. When an output, together with OS0 provides information about the chip status. Can also be used as GPIO for the
8051.
Debug Port is provided when an input. When an output, together with OS1 provides information about the chip status. Can also be used as GPIO for the 8051.
also be used as a GPIO for the 8051.
operation.
connected to the Debug Port pins.
a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
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TDA7503
PIN DESCRIPTION
N. Name Type
75 RA10(P2.2) I/O I Microcontroller High Byte Address Lines. This pin is the address line 10
69 RA11(P2.3) I/O I Microcontroller High Byte Address Lines. This pin is the address line 11
63 RA12(P2.4) I/O I Microcontroller High Byte Address Lines. This pin is the address line 12
66 RA13(P2.5) I/O I Microcontroller High Byte Address Lines. This pin is the address line 13
65 RA14(P2.6) I/O I Microcontroller High Byte Address Lines. This pin is the address line 14
64 RA15(P2.7) I/O I Microcontroller High Byte Address Lines. This pin is the address line 15
83 RAD0(P0.0) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
82 RAD1(P0.1) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
81 RAD2(P0.2) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
80 RAD3(P0.3) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
79 RAD4(P0.4) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
78 RAD5(P0.5) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
77 RAD6(P0.6) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
76 RAD7(P0.7) I/O I Microcontroller Address/Data Pins. This pin is the multiplexed address
84 xALE I/O I Microcontroller External Address Latch Enable. This pin is the address
85 WR(P3.6) I/O I Microcontroller Write Strobe. External data memory write strobe. This pin
86 RD(P3.7) I/O I Microcontroller Read Strobe. External data memory readstrobe. Active
70 XPSEN I/O I Microcontroller External Program Memory Enable. External program
(continued)
Status (1)
Reset
Function
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
of a 16 bit address, for external EPROM and memory mapped devices. It can also actas GPIO using the P2 and P2DIR registers.
and data line bit 0 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 1 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 2 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 3 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 4 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 5 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 6 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
and data line bit 7 for external EPROM and memory mapped peripherals. It can also actas GPIO using the P0 and P0DIR registers.
latch enable. A logic high indicates that address/data lines 7 through 0 represent an address. Inactive for Program/Data fetches from internal AUX.
can also actas GPIO using the P3 and P3DIR registers.
Low, or GPIO. Thispin can also act as GPIO using the P3 and P3DIR registers. Disabled by setting the RDSEL bit in the PINCTL register.
memory enable pin. Active Low. Changes functionality to RD when Microcontroller is fetching instructions out of internal AUX ram. Controlled by the PSSEL and PSBIT bits in the PINCTL register.
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TDA7503
PIN DESCRIPTION
N. Name Type
4 RESET I/O I System Reset. A logic low level applied to RESET input initializes the
96 RXD(P3.0) I/O I Microcontroller Standard Serial Interface (Asynchronous) Input Data. Or
97 TXD(P3.1) I/O I Microcontroller Standard Serial Interface (Asynchronous) Output Data.
99 INT0(P3.2) I/O I Microcontroller Interrupt 0. When pulled low, INT0 asserts a
98 INT1(P3.3) I/O I Microcontroller Interrupt 1. When pulled low, INT1 asserts a
100 T0(P3.4) I/O I Microcontroller Timer 0 External Input. Input event clock for timer 0, or
1 T1(P3.5) I/O I Microcontroller Timer 1 External Input. Input event clock for timer 1, or
87 GPIO0(P1.0) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
88 GPIO1(P1.1) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
89 GPIO2(P1.2) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
92 GPIO3(P1.3) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
93 GPIO4(P1.4) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
94 GPIO5(P1.5) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
95 GPIO6(P1.6) I/O I Microcontroller General Purpose. This GPIO linecan be configured to be
7 SCLK I/O I Microcontroller General Purpose. Each of the six GPIO lines canbe
6 MOSI I/O I Microcontroller SPI Master Output Slave Input Serial Data . Serial Data
(continued)
Status (1)
Reset
Function
microcontroller. The micro is responsible for initializing the DSPs. If the watchdog timer overflow occurs this pin is driven low for 1 watchdog timer cycle. During Debug Mode if this pin is pulled low in while the DBRQN line is pulled low then the DSP pointed to by the DBSEL pin will be reset.
GPIO. This pin can also act as GPIO using the P3 and P3DIR registers.
Or GPIO. This pin can also act as GPIO using the P3 and P3DIR registers.
microcontroller external interrupt. In addition,if this pin is pulled low during powerdown this allowsthe M8051 to resume executing intructions where it left off. This pin can also act as GPIO using the P3 and P3DIR registers.
microcontroller external interrupt. In addition,if this pin is pulled low during powerdown this allowsthe M8051 to resume executing intructions where it left off. This pin can also act as GPIO using the P3 and P3DIR registers.
GPIO. This pin can also act as GPIO using the P3 and P3DIR registers.
GPIO. This pin can also act as GPIO using the P3 and P3DIR registers.
digital input or output bywriting to the P1 and P1DIR registers.This pin is tri-stated while the RESET pin is held low and is pulled low when RESET is released. This pin will be pulled high when in IDLE or PWRDN modes.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
digital input or output bywriting to the P1 and P1DIR registers. At reset it is configured as an input with the output tri-stated.
individually configured to be digitalinput oroutput by writing to the P1 and P1DIR registers. All GPIOs are configured to be inputs with the outputs tri-stated except for P1.0. This pin is tri-stated during while the RESET pin is held low and is pulled low when RESET is released. This pin will be pulled high whenin IDLE or PWRDN modes.
Output for SPI type serial port when in SPI Master Mode andSerial Data Input when in SPI Slave Mode.
6/26
TDA7503
PIN DESCRIPTION
N. Name Type
5 MISO I/O I Microcontroller SPI Master Input Slave Output Serial Data . Serial Data
8 SS/GPIOS I/O I Microcontroller SPI Slave Select . Slave Select Input for SPI type serial
32 PVCC I PLL Clock Power Supply . Vdd Pin for PLL Clock Oscillator. 28 XTO O High Crystal Oscillator Output. Crystal Oscillator output drive. 29 XTI I Crystal Oscillator Input. External Clock Input or crystal connection. 30 FILT O High PLL Loop Filter Capacitor Output. Capacitor connected between FILT
31 PGND I PLL Clock GroundInput. Ground connection for oscillator circuit. 53 VDDI3_CORE1 PWR 3.3V core supply. 23 VDDI3_CORE2 PWR 3.3V core supply.
2 VDDI3_CORE3 PWR 3.3V core supply. 73 VDDI3_CORE4 PWR 3.3V core supply. 54 VSSI3_CORE1 GND Core ground. 22 VSSI3_CORE2 GND Core ground.
3 VSSI3_CORE3 GND Core ground. 74 VSSI3_CORE4 GND Core ground. 27 VDDE5_SA1 PWR 5V supply for SAI pads. 26 VSSE5_SA1 GND Ground for SAI pads. 10 VDDE5_CI1 PWR 5V supply for Control Interface Pads.
9 VSSE5_CI1 GND Ground forControl Interface Pads. 71 VDDE5_MI1 PWR 5V supply for Micro Memory Interface Pads. 91 VDDE5_MI2 PWR 5V supply for Micro Memory Interface Pads. 72 VSSE5_MI1 GND Ground forMicro Memory Interface Pads. 90 VSSE5_MI2 GND Ground forMicro Memory Interface Pads. 44 VDDE5_DR1 PWR 5V supply for DSP EMI Interface Pads. 58 VDDE5_DR2 PWR 5V supply for DSP EMI Interface Pads. 45 VSSE5_DR1 GND Ground for DSP EMI Interface Pads. 57 VSSE5_DR2 GND Ground for DSP EMI Interface Pads.
(continued)
Status (1)
Reset
Function
Input for SPI style serial port when in SPI Master Mode and Serial Data Output when in SPI Slave Mode.
port. This pin can be used as a GPIO when the SPI is disabled or in master mode.
and XGND establishes primary PLL.
7/26
TDA7503
RECOMMENDED DC OPERATING CONDITIONS
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
DDC
DDP 5V Power Supply Voltage 4.5 5 5.5 V
V
Tj Operating Junction
GENERAL INTERFACE ELECTRICALCHARACTERISTICS
Symbol Parameter Test Condition Min. Typ. Max. Unit Note
I
il
I
ih
I
oz
C
in
I
latchup
V
esd
Note 1: Theleakage currents are generally very small, < 1nA. The value given here, 1mA, is a maximum that can occur after an Electrostatic Stress on the pin.
Note 2: Guaranteedby design. Note 3: Human Body Model.
3.3V Power Supply Voltage 3 3.3 3.6 V
-40 125 °C
Temperature
Low Level Input Current
Vi=0V 1 µA1
Without pull-up device High Level Input Current
Vi = V
DDP
1 µA1
Without pull-down device Tri-state Output leakage
Vo = 0V or V
DDP
1 µA1
Without pullup/down device Input capacitance 10 pF 2 I/O Latch-up Current V < 0V, V > V
DDP
200 mA
Electrostatic Protection Leakage < 1µA 2000 V 3
DC ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Condition Min. Typ. Max. Unit Note
V
il
V
ih
V
ol
V
oh
Note 1: Takes intoaccount 200mV voltage drop in both supply lines.
Low Level Input Voltage 0.25V High Level Input Voltage 0.7⋅V Low Level Output Voltage Iol= 2mA 0.4 V 1 High Level Output Voltage Iol= -2mA V
8/26
DDP
DDP
-0.4 V 1
DDP
V V
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