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ST72752J4

8-BIT MCU FOR MONITORS WITH UP TO 32K ROM, 1K RAM, ADC, TIMER, SYNC, PWM/BRM, DDC/DMA & I2C

STMicroelectronics 

ST72752

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72752 is a HCMOS microcontroller unit

(MCU) from the ST7 family with dedicated periph-

erals for Monitor applications.

It is based around an industry standard 8-bit core

and offers an enhanced instruction set. The proc-

essor runs with an external clock at 24 MHz with

a 5V supply. Due to the fully static design of this

device, operation down to DC is possible. Under

software control the ST72752 can be placed in

WAIT or HALT mode thus reducing power con-

sumption. The enhanced instruction set and ad-

dressing modes afford real programming potential.

In addition to standard 8-bit data management the

ST7 features true bit manipulation, 8x8 unsigned

multiplication and indirect addressing modes.

The device includes an on-chip oscillator, CPU,

Sync Processor for video timing & Vfback analy-

sis, up to 32K ROM, up to 1K RAM, I/O, a timer

with 2 input captures and 2 output compares, a 4-

channel Analog to Digital Converter, DDC/DMA,

I2C multi Master, Watchdog Reset, and one 12-bit

and eight 10-bit PWM/BRM outputs for analog DC

control of external functions.

Figure 1. .ST72752 Block Diagram

Up to 32K Bytes

ROM/

EPROM/OTP

Up to 1K Bytes

RAM

PORT A

ADC

PORT B

AIN 0..2, AIN7

PA1(HV)

PA3..6(HV)

PA7/BLANKOUT

VD D A

VS S A

PB7/AIN7

P B 1..2/A IN 1..2

P B 0 /V FB A C K /A IN 0

DDC DMA

CONTROL

8-BIT CORE

ALU

POWER ON/OFF

IN T E R N A L

POWER

SUPPLY

OSC /3 or 6 CLOCK

VDD VSS OSCIN OSCOUT

I²C

DDC

SCLD

SDAD

PORT C

T IM ER

OCMP

WATCHDOG

SYNC

PROCESSOR

PORT D

PWM/BRM

PC6 (HC)

P C 5 /S D A I

P C 4 /S C LI

P C 3 /S D A D

PC2/RX/SCLD

P C0 /O C M P /H F B A C K

RESET

VSYNCI

HSYNCI

PD6/CLAMPOUT

PD5/ITA

PD4/ITB

PD3/ITC

PD2/VSYNCO

PD1/HSYNCO

PD0/CSYNCI

DA0

D A 1 ,D A 8

VR01735R

2/3

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