ST92185B 16K/24K/32K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY is a highly integrated 8/16-bit microcontroller from ST company, with 8/16-bit register file, RUN, WFI, SLOW and HALT modes, operating temperature range of 0°C to +70°C, up to 24 MHz operation (at 5V±10% voltage), 16, 24 or 32 Kbytes of ROM, 256 bytes of register file (accumulators or index registers) RAM, 256 bytes of on-chip static RAM, 2K bytes of TDSRAM (Display Storage RAM) and 28 fully programmable I/O pins.
The ST92185B is a high‑performance HCMOS microcontroller from STMicroelectronics offering 16 KB, 24 KB or 32 KB of ROM, 256 bytes of register‑file RAM, an additional 256 bytes of static RAM and 2 KB of display storage RAM. It features a flexible 8/16‑bit core with RUN, WFI, SLOW and HALT power‑saving modes and an integrated on‑screen display controller capable of 26 × 40 or 24 × 80 character layouts with 10 × 10 dot matrix characters.
The device includes a rich set of on‑chip peripherals: a 4‑channel 5‑bit ADC, up to eight 8‑bit PWM outputs, a 16‑bit watchdog timer, a standard 16‑bit timer, serial peripheral interface (SPI), voltage‑synthesis tuning converter, and extensive programmable I/O (28 pins). All peripherals are designed to off‑load the core and support low‑power, real‑time embedded applications.
| Operating temperature range | 0 °C to +70 °C |
|---|---|
| Maximum clock frequency | up to 24 MHz |
| ROM size options | 16 KB, 24 KB, 32 KB |
| Register‑file RAM | 256 bytes |
| Static RAM | 256 bytes |
| Display Storage RAM (TDSRAM) | 2 KB |
| Programmable I/O pins | 28 |
| ADC | 4‑channel, 5‑bit guaranteed resolution |
| PWM outputs | up to eight 8‑bit programmable outputs |
| Watchdog timer | 16‑bit with 8‑bit prescaler |
The device provides up to 28 fully programmable I/O pins.
The ST92185B can operate up to 24 MHz.