The SyncMOS SM59R16A2/SM59R08A2 specification sheet details the 8‑bit microcontroller’s flash, RAM, I/O, peripherals and electrical characteristics.
The SM59R16A2 and SM59R08A2 are 8‑bit microcontrollers featuring embedded flash memory (64 KB or 32 KB) and 2 KB of SRAM. They support a 1T/2T architecture with up to 25 MHz clock speed and are compatible with the full MCS‑51 instruction set.
Key features include 48 GPIO pins, dual UARTs, I²C and SPI interfaces, four PWM channels, a 10‑bit ADC, watchdog timer, on‑chip oscillator, and extensive power‑management options. The device operates from 2.7‑3.6 V or 4.5‑5.5 V and is rated for –40 °C to 85 °C, making it suitable for a wide range of embedded applications.
| Flash memory | 64 KB (SM59R16A2) / 32 KB (SM59R08A2) |
|---|---|
| SRAM | 2 KB |
| Operating voltage | 2.7 V–3.6 V or 4.5 V–5.5 V |
| Maximum clock frequency | 25 MHz |
| GPIO pins | 48 |
| UART interfaces | 2 (UART0 & UART1) |
| ADC resolution | 10‑bit, 4 channels |
| PWM channels | 4 (12‑bit/10‑bit/8‑bit selectable) |
| Operating temperature | -40 °C to 85 °C |
The SM59R16A2 contains 64 KB of flash memory, while the SM59R08A2 contains 32 KB.
It can operate from 2.7 V to 3.6 V or from 4.5 V to 5.5 V.
The microcontroller provides 48 general‑purpose I/O pins.
The device can run up to 25 MHz.