This datasheet details the features and characteristics of ST72334J/N, ST72314J/N, ST72124J 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
The document provides a technical preview of the ST72334J/N, ST72314J/N, and ST72124J devices, which are members of the ST7 microcontroller family. These 8-bit MCUs feature an enhanced instruction set with true bit manipulation and indirect addressing modes. The product line is differentiated by memory size (8K or 16K) and peripheral inclusion: the J/N series includes Data EEPROM, while the 124J series does not; the N versions include an ADC, whereas the J versions do not.
| Program Memory | 8K or 16K bytes (ROM or Single voltage FLASH) |
|---|---|
| Data EEPROM | 256 bytes |
| Operating Supply Voltage | 3.0V to 5.5V |
| CPU Frequency | 500 kHz to 8 MHz |
| Operating Temperature Range | -40 °C to +85°C (optional -40°C to +125/105 °C) |
| I/O Lines | 44 or 32 multifunctional bidirectional I/O lines |
The devices support four power saving modes: WAIT, SLOW, ACTIVE-HALT, and HALT.
The devices operate with a supply voltage between 3.0V and 5.5V.
The ST72124J device contains 8K bytes of program memory.
The CPU can run at frequencies up to 8 MHz when using a 16 MHz oscillator.