GENERAL DESCRIPTION
INTRODUCTION
The ST72311R, ST72511R, ST72512R and ST72532R devices are members of the ST7 microcontroller family. They can be grouped as follows:

– ST725xxR devices are designed for mid-range applications witha CAN bus interface (Controller Area Network)
– ST72311R devices target the same range of applications but without CAN interface.

All devices are based on a common industry standard 8-bit core, featuring an enhanced instruction set.
Under software control, all devices can be placed in WAIT, SLOW, ACTIVE-HALT or HALT mode, reducing power consumption when the application is in idle or standby state.

■ Memories
   – 16K to 60K bytes Program memory (ROM,OTP and EPROM) with read-out protection
   – 256 bytes E2PROM Data memory (only on ST72532R4)
   – 1024 to 2048 bytes RAM
■ Clock, Reset and Supply Management
   – Enhanced reset system
   – Low voltage supply supervisor
   – Clock sources: crystal/ceramic resonator os cillator or external clock
   – Beep and Clock-out capability
   – 4 Power Saving Modes: Halt, Active-Halt, Wait and Slow
■ Interrupt Management
   – Nested interrupt controller
   – 13 interrupt vectors plus TRAP and RESET
   – 15 external interrupt lines (on 4 vectors)
   – TLI dedicated top level interrupt pin
■ 48 I/O Ports
   – 48 multifunctional bidirectional I/O lines
   – 32 alternate function lines
   – 12 high sink outputs
■ 5 Timers
   – Configurable watchdog timer
   – Real time clock timer
   – One 8-bit auto-reload timer with 4 independ ent PWM output channels, 2 input captures, output compares and external clock with event detector (except on ST725x2R4)
   – Two 16-bit timers with: 2 input captures, 2 output compares, external clock input on one timer, PWM and Pulse generator modes
■ 3 Communications Interfaces
   – SPI synchronous serial interface
   – SCI asynchronous serial interface
   – CAN interface (except on ST72311Rx)
■ 1 Analog peripheral
   – 8-bit ADC with 8 input channels
■ Instruction Set
   – 8-bit data manipulation
   – 63 basic instructions
   – 17 main addressing modes
   – 8 x 8 unsigned multiply instruction
   – True bit manipulation
■ Development Tools
   – Full hardware/software development package