ST7285C datasheet(98/117 Pages) STMICROELECTRONICS

Teilenummer	ST7285C

Bauteilbeschribung	8-BIT MCU FOR RDS WITH 48K ROM, 3K RAM, ADC, TWO TIMERS, TWO SPIs, I2C AND SCI INTERFACES

PDF	117 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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ST72E85 ST72T85

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST72E85 is the EPROM version of the

ST7285C. Please refer to the ST7285C ROM de-

vice Datasheet for further details.

From the User’s point of view, both theST72E85

and the ST7285C possess the same software and

hardware features.

An additional mode is available to allow program-

ming of the EPROM user memory array. This is

set by a specific voltage source applied to the V

PP/

Test pin.

The ST72E85 (EPROM) features a 48K EPROM

memory.

Watchdog activation is available by Software for

Eprom and OTP devices.

Figure 1. ST72E85 Block Diagram

*Note: EPROM and OTP versions only.

Power on Reset

PA0 - PA7

Pin 65..72

PB0 - PB7

Pin 73..80

OSCin

OSCout

RESET

PP / TEST

OSC

8 -BIT CORE

ALU

VR01735P

Internal

CLOCK

Timer A

PORT A

PORT B

A/D Converter

SPI B

PORT C

PC0 - PC7

Pin 5..12

SPI A

PORT D

I2C

SCI

RAM

RDS

FILTER,DEMOD,GBS

Timer B

PD0 - PD7

Pin 13..20

PORT E

PE0 - PE7

Pin 25..32

PORT F

PF0 - PF7

Pin 33..40

PORT H

PORT G

PH0 - PH5

Pin 53..58

PG0 - PG7

Pin 45..52

ROM or EPROM*

48k

Watchdog

RDScomp

MPX

RDS fil

RDS ref

ARS

AINT

DDP

SSP

DDA

SSA

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