SGS Thomson Microelectronics ST7250 Datasheet

ST7250

8-BIT MCU FOR CAN WITH 32K ROM, 1K RAM, EEPROM,

ADC, WDG, PWM/BRM, 2 TIMERS, SPI AND SCI INTERFACES

■ 4.5V to 5.5V Supply Operating Range

■ 16 MHz Maximum Oscillator Frequency

■ 8 MHz Maximum Internal Clock Frequency

■ Fully Static operation

■ -40°Cto+85°C Temperature Range

■ Run, Wait, Slow, Halt and RAM Retention

modes

■ User ROM/OTP: up to 32 Kbytes

■ Data RAM: up to 1 Kbytes, including 256 bytes

stack

■ Data EEPROM: up to 384 bytes

■ 64 pin PQFP package

■ 48 multifunctional bidirectional I/O lines:

– 15 Programmable Interrupt inputs
– 8 Analog alternate inputs
– 4x15mA outputs
– 25 Alternate functions
– EMI filtering

■ Two 16-bit Timers, each featuring:

– 2 Input Captures
– 2 Output Compares
– External Clock input (on Timer 1)
– PWM and Pulse Generator modes

■ CAN peripheral

■ 8-bit Analog-to-Digital Converter

■ Programmable Watchdog for system integrity

■ 4x10-bit PWM Pulse Width Modulation outputs

■ Synchronous Serial Peripheral Interface

■ Asynchronous Serial Communications Interface

■ Master Reset and Power-On Reset

■ 8-bit Data Manipulation

■ 63 basic Instructions and 17 main Addressing

Modes

■ 8 x 8 Unsigned Multiply Instruction

■ True Bit Manipulation

■ Complete Development Support on DOS/

WINDOWSTMReal-Time Emulator

■ Full Software Package on DOS/WINDOWS

TM

(C-Compiler, Cross-Assembler, Debugger)

Device Summary

Features ST7250A6 ST7250B4

ROM bytes 32 Kbytes 20 Kbytes
RAM bytes 1 Kbytes 512 bytes
EEPROM 384 bytes 256 bytes
Timers 2 2
PWM 1 1
WDG 1 (Hardware) 1 (Hardware)
SCIP 1 1
SPI 1 1
CAN 1 1
ADC 1 1
Package PQFP64 PQFP64

PQFP64

BRIEF DATA

Rev. 1.2

October 1997 1/1

Thisispreliminary information onanewproductin development orundergoing evaluation.Detailsare subject tochangewithoutnotice.

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