This document introduces an 8-bit microcontroller with nested interrupts, EEPROM, ADC, 16-bit timers, 8-bit PWM ART, SPI, SCI, CAN interfaces, etc. It features 16K to 60K bytes of program memory, 256 bytes of E2PROM data memory (only on ST72532R4), 1024 to 2048 bytes of RAM, as well as clock, reset and supply management functions. Additionally, it includes interrupt management, 48 I/O ports, 5 timers, 3 communications interfaces, and 1 analog peripheral. The instruction set consists of 8-bit data manipulation and 63 basic instructions.
This document is a technical datasheet covering three specific models of 8-bit microcontrollers: the ST72311R, ST72511R, and ST72532R. These devices are designed with features including nested interrupt controllers, EEPROM data memory (on select models), an 8-bit ADC, multiple timers, and communication interfaces such as SPI, SCI, and CAN.
| Program Memory Size | 16K to 60K bytes (ROM, OTP and EPROM) |
|---|---|
| Data EEPROM Size | 256 bytes (only on ST72532R4) |
| RAM Size | 1024 to 2048 bytes |
| I/O Ports | 48 multifunctional bidirectional I/O lines |
| Timers | 5 Timers including configurable watchdog and real time clock |
| Communication Interfaces | SPI, SCI, CAN (except on ST72311Rx) |
| Analog Peripheral | 8-bit ADC with 8 input channels |
| Operating Supply Voltage | 3.0V to 5.5V |
The document covers the ST72311R, ST72511R, and ST72532R microcontrollers.
Yes, the ST72532R includes 256 bytes of EEPROM data memory.
No, the CAN interface is not available on the ST72311Rx model.