ST72754J7B1/XXX Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

fabricante

ST72754J7B1/XXX

8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C

STMicroelectronics 

ST72774/ST727754/ST72734

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72774, ST72754 and ST72734 are

HCMOS microcontroller units (MCU) from the

ST727x4 family with dedicated peripherals for

Monitor applications.

They are based around an industry standard 8-bit

core and offer an enhanced instruction set. The

processor runs with an external clock at 12 or 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 ST727x4 can be placed

in WAIT mode thus reducing power consumption.

The HALT mode is no longer available.

The enhanced instruction set and addressing

modes afford real programming potential. Illegal

opcodes are patched and lead to a reset.

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,

System protection against illegal address jumps,

Sync Processor for video timing & Vfback analysis,

up to 60K Program Memory, up to 1K RAM, USB/

DMA, a Timing Measurement Unit, I/O, a timer with

2 input captures and 2 output compares, a 4-

channel Analog to Digital Converter, DDC, I2C

Single Master, Watchdog Reset, and eight 10-bit

PWM/BRM outputs for analog DC control of

external functions.

Figure 1. ST727x4 Block Diagram

Up to 60K Bytes

ROM/OTP/EPROM

Up to 1K Bytes

RAM

PORT A

PORT B

ADC

I2C

PA0/OCMP1

PA1

PA2/VSYNCI2

PA3-PA6

PA7/BLANKOUT

PB6-PB7/AIN2-AIN3/PWM1-PWM2

PB4-PB5/AIN0-AIN1

PB3/SDAI

PB2/SCLI

RESET

OSCIN

OSCOUT

VDD

VSS

CONTROL

8-BIT CORE

ALU

WATCHDOG

OSC

:3

Mode

Selection

POWER SUPPLY

DDC

USB

PORT D

TIMER

SYNC

PROCESSOR

TMU

PORT C

DAC (PWM)

PB1/SDAD

PB0/SCLD

USBVCC

USBDP

USBDM

PD0/VSYNCO

PD1/HSYNCO

PD2/CSYNCI

PD3/ITA/VFBACK

PD4/ITB

PD5/HFBACK

PD6/CLAMPOUT

VSYNCI

HSYNCI

PC0/HSYNCDIV

PC1/AV

PC2-PC7/PWM3-PWM8

6/144

3

Share Link: