ST72104G, ST72215G, ST72216G, ST72254G 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, I2C INTERFACES
The document describes the ST7‑family microcontrollers ST72104G, ST72215G, ST72216G and ST72254G. It covers architecture, core features, memory organization, peripheral sets and power‑saving modes. Detailed pin‑out diagrams, register maps and programming information are included.
Key sections include supply, reset and clock management, I/O port configuration, timer and ADC characteristics, communication interfaces (SPI and I²C), and package and ordering data. The handbook also lists electrical limits, absolute maximum ratings and a summary of changes from previous revisions.
| Program memory | 4 KB or 8 KB |
|---|---|
| RAM | 256 bytes |
| Operating supply voltage | 3.2 V to 5.5 V |
| CPU frequency | Up to 8 MHz (16 MHz with external oscillator) |
| Operating temperature range | -10 °C to +85 °C (typical) |
| Package type | SDIP‑32 (S028) |
| ADC | 8‑bit, 6 input channels |
| SPI interface | Synchronous serial interface |
| I/O pins | 22 multifunctional bidirectional I/O lines |
| High‑sink output capability | 20 mA per pin |
| Power‑saving modes | Halt, Wait, Slow |
The devices operate from 3.2 V up to 5.5 V.
Each device provides 22 multifunctional bidirectional I/O lines.
The microcontrollers support Halt, Wait and Slow power‑saving modes.