TMS77C82 datasheet(3/49 Pages) TI

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TMS370Cx0x

8-BIT MICROCONTROLLER

SPNS029C – SEPTEMBER 1995 – 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

256 Bytes

CPU

Port A

Port D

Timer 1

Watchdog

INT1

INT2

INT3

XTAL1

XTAL2/

CLKIN

SCIRXD

SCITXD

SCICLK

Serial

Communications

Interface 1

RESET

VCC

Program Memory

ROM: 8K Bytes

EPROM: 8K Bytes

Data EEPROM

0 or 256 Bytes

description

The TMS370C002, TMS370C302, TMS370C702, and SE370C702 devices are members of the TMS370 family

of single-chip 8-bit microcontrollers. Unless otherwise noted, the term TMS370Cx0x 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 TMS370Cx0x 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

TMS370Cx0x devices attractive in system designs for automotive electronics, industrial motors, computer

peripheral controls, telecommunications, and consumer applications.

All TMS370Cx0x devices contain the following on-chip peripheral modules:

D Serial communications interface 1 (SCI1)

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

D One 24-bit general-purpose watchdog timer

Table 1 provides a memory configuration overview of the TMS370Cx0x devices.

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