INTRODUCTION

The ST7LITE1 is a member of the ST7 microcontroller family. All ST7 devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set.
The ST7LITE1 features FLASH memory with byte-by-byte In-Circuit Programming (ICP) and InApplication Programming (IAP) capability.

■ Memories

– 4 Kbytes single voltage extended Flash (XFlash) Program memory with read-out protection, In-Circuit Programming and In-Application programming (ICP and IAP). 10K write/ erase cycles guaranteed, data retention: 20 years at 55°C.
– 256 bytes RAM
– 128 bytes data E2PROM with read-out protection. 300K write/erase cycles guaranteed, data retention: 20 years at 55°C.
■ Clock, Reset and Supply Management
– Enhanced reset system
– Enhanced low voltage supervisor (LVD) for main supply and an auxiliary voltage detector (AVD) with interrupt capability for implementing safe power- down procedures
– Clock sources: Internal 1% RC oscillator (on some devices), crystal/ceramic resonator or external clock
– Internal 32-MHz input clock for Auto-reload timer
– Optional x4 or x8 PLL for 4 or 8 MHz internal clock
– Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow
■ I/O Ports
– Up to 15 multifunctional bidirectional I/O lines
– 7 high sink outputs
■ 4 Timers
– Configurable watchdog timer
– Two 8-bit Lite Timers with prescaler, 1 realtime base and 1 input capture
– One 12-bit Auto-reload Timer with 4 PWM outputs, input capture and output compare functions
■ Communication Interface
– SPI synchronous serial interface
■ Interrupt Management
– 10 interrupt vectors plus TRAP and RESET
– 15 external interrupt lines (on 4 vectors)
■ A/D Converter
– 7 input channels
– Fixed gain Op-amp
– 13-bit precision for 0 to 430 mV (@ 5V VDD)
– 10-bit precision for 430 mV to 5V (@ 5V VDD)
■ Instruction Set
– 8-bit data manipulation
– 63 basic instructions with illegal opcode detection
– 17 main addressing modes
– 8 x 8 unsigned multiply instructions
■ Development Tools
– Full hardware/software development package
– DM (Debug Module)