US5M

Description

The ST7LUxx devices are members of the ST7 microcontroller family designed for mid-range automotive applications running from 3 to 5.5V. All ST7 devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set and are available with Flash or preprogramed memory. The ST7 family architecture offers both power and flexibility to software developers, enabling the design of highly efficient and compact application code.

Features

Memories
■ 1 to 2 Kbytes single voltage Flash program memory with readout protection, in-circuit and in-application programming (ICP and IAP), 10k write/erase cycles guaranteed, data retention 20 years
■ 128 bytes RAM
■ Up to 128 bytes data EEPROM, 300k write/erase cycles guaranteed, data retention 20 years

Clock, reset and supply management

■ Internal low voltage supervisor (LVD) for reliable power-on/-off start-up procedures
■ Clock sources: Internal trimmable 8 MHz RC oscillator, internal low power, low frequency RC oscillator or external clock
■ 5 power saving modes: Halt, auto wake-up from halt, active halt, wait and slow

Interrupt management

■ 11 interrupt vectors plus TRAP and reset
■ 5 external interrupt lines (on 5 vectors)

I/O ports

■ 5 multifunctional bidirectional I/O lines
■ 1 additional output line
■ 6 alternate function lines
■ 5 high sink outputs

2 timers

■ One 8-bit lite timer with prescaler including: watchdog, 1 real-time base and 1 input capture
■ One 12-bit auto-reload timer with output compare function and PWM

A/D converter

■ 10-bit resolution for 0 to VDD
■ 5 input channels

Instruction set

■ 8-bit data manipulation
■ 63 basic instructions with illegal opcode detection
■ 17 main addressing modes
■ 8 x 8 unsigned multiply instruction

Development tools

■ Full hardware/software development package
■ Debug module