This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice. ST72104G, ST72215G, ST72216G, ST72254G are 8-bit MCUs with single voltage flash memory, ADC, 16-bit timers, SPI, and I2C interfaces. The product features include program memory, clock, reset and supply management, interrupt management, I/O ports, timers, communication interfaces, and an analog peripheral.
This document describes the ST72104G, ST72215G, ST72216G, and ST72254G devices, which are members of the ST7 microcontroller family. These 8-bit MCUs feature single voltage Flash memory with in-situ programming capabilities, an enhanced instruction set, and multiple power-saving modes including Halt, Wait, and Slow.
The document details the structural organization, central processing unit registers, supply management, interrupt handling, I/O ports, and on-chip peripherals such as watchdog timers, 16-bit timers, SPI interfaces, I2C bus interface (on specific models), and an 8-bit ADC. It also provides comprehensive electrical characteristics, timing diagrams, and package information.
| RAM size | 256 bytes |
|---|---|
| Operating supply voltage | 3.2V to 5.5V |
| CPU Frequency | Up to 8 MHz (with oscillator up to 16 MHz) |
| Operating Temperature Range | -40°C to +125°C (optional) |
Only the ST72254Gx devices feature the I2C multimaster interface.
The devices support three Power Saving Modes: Halt, Wait and Slow.