HCS08 series microcontrollers are high-performance, low-power, low-cost microcontrollers from Freescale. The series features a 40MHz HCS08 CPU, 16KB FLASH memory, and 1KB RAM. It supports various peripheral interfaces and can be widely used in consumer electronics, industrial control, automotive electronics, etc.
The MC9S08AC16 series includes the MC9S08AC16, MC9S08AC8, S9SO8AW16A, and S9SO8AW8A devices, targeting consumer, industrial, and automotive applications. They feature a 40‑MHz HCS08 CPU, 20‑MHz internal bus, and support up to 32 interrupt sources.
Memory options include up to 16 KB of flash and 1 KB of RAM. The devices offer up to 38 GPIO pins, an 8‑channel 10‑bit ADC, two serial communications interfaces, SPI, I²C, multiple 16‑bit timers, and are available in QFN, LQFP, and other packages. For full specifications and ordering information, refer to the appendices.
| CPU frequency | 40 MHz |
|---|---|
| Internal bus frequency | 20 MHz |
| RAM size | Up to 1 KB |
| General‑purpose I/O pins | Up to 38 |
| ADC resolution | 10‑bit, 8‑channel |
The devices run on a 40‑MHz HCS08 CPU.
The microcontrollers offer up to 38 GPIO pins.