TMS77C82 datasheet(3/50 Pages) TI

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TMS370Cx1x

8-BIT MICROCONTROLLER

SPNS012F – MAY 1987 – REVISED FEBRUARY 1997

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

functional block diagram

Interrupts

T1IC/CR

T1EVT

T1PWM

System

Control

Clock Options:

Divide-By-4 or

Divide-By-1 (PLL)

RAM

128 or 256 Bytes

CPU

Port A

Port D

Timer 1

Watchdog

INT1

INT2

INT3

XTAL1

XTAL2/

CLKIN

SPISOMI

SPISIMO

SPICLK

Serial

Peripheral

Interface

RESET

VCC

Program Memory

ROM: 2K, 4K, or 8K Bytes

EPROM: 8K Bytes

Data EEPROM

0 or 256 Bytes

description

The TMS370C010, TMS370C012, TMS370C311, TMS370C310, TMS370C312, TMS370C712, and

SE370C712 devices are members of the TMS370 family of single-chip 8-bit microcontrollers. Unless otherwise

noted, the term TMS370Cx1x refers to these devices. The TMS370 family provides cost-effective real-time

system control through integration of advanced peripheral-function modules and various on-chip memory

configurations.

The TMS370Cx1x family of devices is implemented using high-performance silicon-gate CMOS EPROM and

EEPROM technologies. Low-operating power, wide-operating temperature range, and noise immunity of

CMOS technology coupled with the high performance and extensive on-chip peripheral functions make the

TMS370Cx1x devices attractive for system designs for automotive electronics, industrial motors, computer

peripheral controls, telecommunications, and consumer applications.

All TMS370Cx1x devices contain the following on-chip peripheral modules:

D Serial peripheral interface (SPI)

D One 24-bit general-purpose watchdog timer

D One 16-bit general-purpose timer with an 8-bit prescaler

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