This document provides a detailed introduction to the basic features of ST72561 8-bit MCU, including memory, clock, interrupt management, I/O ports, timers, and communication interfaces.
The ST72561 is an 8-bit microcontroller designed for mid-range applications requiring CAN and LIN interfaces. It features a common industry-standard 8-bit core with an enhanced instruction set and is available with either High Density Flash (HDFlash) or ROM program memory. The device includes 1 to 2K of RAM and supports up to 60K of program memory depending on the specific variant.
Key peripherals include a 10-bit A/D converter with up to 16 inputs, a PWM Autoreload timer, two general-purpose timers, and communication interfaces such as SPI, LINSCI (Master/Slave or Master-only), and CAN 2.0B active. The microcontroller offers five power-saving modes, including Halt, Auto Wake Up From Halt, Active Halt, Wait, and Slow modes, to optimize power consumption in idle or stand-by states.
| Program Memory | 16K to 60K High Density Flash or ROM |
|---|---|
| RAM | 1 to 2K |
| Flash Endurance | 100 cycles |
| Data Retention | 40 years at 85°C |
| Operating Supply Voltage | 4.5V to 5.5V |
| CPU Frequency | 8 MHz (External Resonator Osc. w/ PLLx2) |
| Temperature Range | -40°C to +125°C |
| I/O Ports | Up to 48 multifunctional bidirectional I/O lines |
| Timers | 5 Timers |
| ADC Resolution | 10-bit |
The maximum program memory size is 60K bytes for High Density Flash or ROM.
The device supports five power saving modes: Halt, Auto Wake Up From Halt, Active Halt, Wait, and Slow.
The operating supply voltage range is 4.5V to 5.5V.
Yes, it includes a CAN 2.0B active controller.