ST7263B is an 8-bit microcontroller produced by STMicroelectronics, with low-speed USB, 32KB flash, 512 bytes RAM, 8-bit ADC, WDG, timer, SCI and I²C.
The ST7263B microcontroller family from STMicroelectronics is designed for low‑speed USB applications. It features an 8‑bit core, up to 16 KB of program memory, 384‑512 bytes of RAM, 19 I/O ports, and a range of on‑chip peripherals including USB, ADC, timers and watchdog.
The datasheet provides detailed information on pin assignments, memory map, electrical characteristics, package options, and configuration registers, helping designers integrate the device into their hardware designs.
| Operating Supply Voltage | 4.0 V to 5.5 V |
|---|---|
| CPU Frequency | 8 MHz (24 MHz oscillator) or 4 MHz (12 MHz oscillator) |
| Operating Temperature | 0 °C to +70 °C |
| RAM Size | 384 bytes or 512 bytes (128‑byte stack) |
| Program Memory Size | 4 KB, 8 KB or 16 KB |
| I/O Ports | 19 ports |
| USB Interface | Low‑speed USB with 3 programmable endpoints |
| ADC | 8‑bit ADC with 8 channels |
| Timer | 16‑bit timer with PWM output |
| Watchdog Timer | Programmable watchdog |
The device operates from 4.0 V to 5.5 V.
It provides 19 I/O ports.
It includes an 8‑bit ADC with 8 multiplexed channels.
The device can operate from 0 °C up to +70 °C.