The MC9RS08KA2 series is a 8-bit microcontroller from Freescale, which has a built-in flash memory, a simplified S08 instruction set with added high-performance instructions, supports short-type and small-type addressing modes, supports 63 bytes of RAM, has wait and stop modes, and can be awakened by real-time interrupts (RTI), KBI, and ACMP. The working frequency can reach up to 10MHz. It has COP reset and low voltage detection protection functions, supports KBI keyboard interrupt port and background debugging system, and comes in 6-pin DFN, 8-pin PDIP and 8-pin SOIC three types of packages.
The MC9RS08KA2 is an 8‑bit RS08 microcontroller from Freescale Semiconductor. It features a simplified S08 instruction set, on‑chip flash memory, RAM, and a range of peripherals such as timers, analog comparator, and keyboard interrupt.
The document provides detailed specifications, pin assignments, operating modes, electrical characteristics, and ordering information for the 6‑pin DFN, 8‑pin PDIP and 8‑pin NB‑SOIC packages. This manual is written in Chinese.
| Flash memory size | 2048 bytes |
|---|---|
| RAM size | 6 bytes |
| Internal clock source | Adjustable up to 20 MHz, max 10 MHz bus frequency |
| Operating voltage (VDD) | 1.80 V – 5.5 V |
| Analog comparator input voltage range | VSS‑0.3 V to VDD |
| Package options | 6‑pin DFN, 8‑pin PDIP, 8‑pin NB‑SOIC |
The MC9RS08KA2 contains 2048 bytes of on‑chip flash memory.
It operates with a supply voltage (VDD) from 1.8 V up to 5.5 V.
The device is offered in 6‑pin DFN, 8‑pin PDIP, and 8‑pin NB‑SOIC packages.
The internal bus can run up to 10 MHz.