ST7293 datasheet(47/69 Pages) STMICROELECTRONICS

47 / 69 page

September 1995

47/69

ST72E94

ST72T94

8-BIT HCMOS MCU WITH 6K EPROM, EEPROM AND 16-BIT

TIMER WITH INPUT CAPTURE AND OUTPUT COMPARE

n 3.0 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 EPROM:

6,144 bytes

n Data RAM:

224 bytes

n EEPROM:

256 bytes

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

ST72T94 OTP version

n 28

pin Ceramic Dual-in-Line package for

ST72E94 EPROM version

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 Compatible with ST7294 (6K) and ST 7293

(3.25K) ROM devices

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)

Figure 1. Pin Description

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

PDIP28

PSO28

CDIP28W

(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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