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ST7275-2

8-BIT, 42-PIN MCU FOR MONITORS WITH UP TO 32K ROM, 1K

RAM, ADC, TIMER, SYNC, PWM/BRM, DDC/DMA & I

2

C

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

s

User ROM/OTP/EPROM: up to 32 Kbytes

Data RAM: up to 1 Kbytes (256 bytes stack)

8 MHz Maximum Internal Clock Frequency in

fast mode, 4 MHz in normal mode

Run, Wait and Halt CPU modes

Sync Processor for Mode Recognition, power

management and composite video blanking,

clamping

and

free-running

frequency

generation.

鈥?Corrector mode

鈥?Analyzer mode

Fast I

2

C Multi Master Interface

DDC Bus Interface fully compliant with DDC1,

2B, 2B+, 2AB, 2Bi standards

23 I/O lines

鈥?1 high current I/O (10 mA)

鈥?Up to 5 high voltage outputs (9V)

16-bit timer with 2 input captures and 2 output

compare functions (with 1 output pin)

8-bit Analog to Digital Converter with 4 channels

on port B

8 10-bit PWM/BRM Digital to Analog outputs

One 12-bit PWM/BRM Digital to Analog output

Master Reset and Power on/off reset

1

Programmable Watchdog for system reliability

42-pin Shrink Dual In line Plastic package

Fully static operation

0 to + 70

o

C Operating Temperature Range

4.5V to 5.5V supply operating range

24 MHz Quartz Oscillator

63 basic instructions/17 main address modes

8x8 unsigned multiply instruction

True bit manipulation

Versatile Development Tools (DOS and

Windows) including assembler, linker, C-

compiler, archiver, source level debugger,

programmer, and hardware emulator

PSDIP42

Device Summary

Features

ROM

(bytes)

RAM

(bytes)

ADC

Timer

I

2

C Bus

DDC/DMA

Sync

PWM

I/O

EPROM

Device

OTP

Device

ST72752J6

32K

1K

ST72752J5

24K

768

4 channels

1

one multimaster

yes

yes

9

23

ST72E752J6D1

ST72T752J6B1

ST72752J4

16K

512

Note 1:

Power On/Off reset not implemented in

this revision.

Rev. 1.7

September 2000

1/131

1

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