ST7293 datasheet(61/69 Pages) STMICROELECTRONICS

61 / 69 page

September 1995

61/69

ST7293

8-BIT MCU WITH 3K ROM, EEPROM AND 16-BIT TIMER

WITH INPUT CAPTURE AND DUAL OUTPUT COMPARE

n 2.5 to 5.5V Supply Operating Range

n 4MHz Maximum Clock Frequency

n Fully Static operation

n -40

° to +85°C Operating Temperature Range

n Run, Wait, Stop and RAM Retention modes

n User ROM:

3,328 bytes

n Data RAM:

128 bytes

n EEPROM:

128 bytes

n 28 pin Dual-in-Line and SO plastic packages

n 22 Bidirectional I/O lines

n 6 Interrupt Wake-Up programmable input lines

n 16-bit Timer with Input Capture and dual Output

Compare

n 2V RAM Data Retention mode

n Master Reset and Power-On Reset

n Maskable Options for:

– Input Capture (ICAP) and Output Compare

(OCMP) signal pinouts

– PORT C Wake-Up function

– PORT A Open-Drain outputs

– PORTS A and B input Pull-Ups

– Watchdog Enabled/ Disabled following Reset

– Watchdog Enabled during WAIT mode

n 8-bit Data Manipulation

n 63 Basic Instructions

n 17 main Addressing Modes

n 8x8 Unsigned Multiply instruction

n True Bit Manipulation

n Complete Development Support on PC/DOS

Real-Time Emulator

n Full

Software

Package

(Cross-Assembler,

Debugger)

n EPROM and OTP support

Figure 1. Pin Description

Note 1. This pin is also the VPP input for EPROM based device

PDIP28

PSO28

(See end of Datasheet for Ordering Information)

INT

RESET

OSCin

OSCout

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

PC5

PA0

PA1

PA2

PA3

PA4

PA5

PA6

PA7

PC0 (ICAP)

PC1 (OCMP1)

PC2

PC3

VR0A1734

VSS

PC4

(1)

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