●INTRODUCTION
●The ST72F521 and ST72521B devices are members of the ST7 microcontroller family designed for mid-range applications with a CAN bus interface (Controller Area Network).
●All devices are based on a common industry standard 8-bit core, featuring an enhanced instruction set and are available with FLASH or ROM program memory.
●■ Memories
●– 32K to 60K dual voltage High Density Flash (HDFlash) or ROM with read-out protection capability. In-Application Programming and In-Circuit Programming for HDFlash devices
●– 1K to 2K RAM
●– HDFlash endurance: 100 cycles, data retention: 20 years at 55°C
●■ Clock, Reset And Supply Management
●– Enhanced low voltage supervisor (LVD) for main supply and auxiliary voltage detector(AVD) with interrupt capability
●– Clock sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
●– PLL for 2x frequency multiplication
●– Four power saving modes: Halt, Active-Halt, Wait and Slow
●■ Interrupt Management
●– Nested interrupt controller
●– 14 interrupt vectors plus TRAP and RESET
●– Top Level Interrupt (TLI) pin
●– 15 external interrupt lines (on 4 vectors)
●■ Up to 64 I/O Ports
●– 48 multifunctional bidirectional I/O lines
●– 34 alternate function lines
●– 16 high sink outputs
●■ 5 Timers
●– Main Clock Controller with: Real time base, Beep and Clock-out capabilities
●– Configurable watchdog timer
●– Two 16-bit timers with: 2 input captures, 2 out put compares, external clock input on one timer, PWM and pulse generator modes
●– 8-bit PWM Auto-Reload timer with: 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector
●■ 4 Communications Interfaces
●– SPI synchronous serial interface
●– SCI asynchronous serial interface
●–I2C multimaster interface (SMbus V1.1 compliant)
●– CAN interface (2.0B Passive)
●■ Analog periperal (low current coupling)
●– 10-bit ADC with 16 input robust input ports
●■ Instruction Set
●– 8-bit Data Manipulation
●– 63 Basic Instructions
●– 17 main Addressing Modes
●– 8 x 8 Unsigned Multiply Instruction
●■ Development Tools
●– Full hardware/software development package
●– In-Circuit Testing capability
Part 3D Model
