MC9S08AC128CFUE Description

The MC9S08AC128CFUE is an 8-bit Flexis Microcontroller that runs at a maximum frequency of 40MHz and is based on an improved HCS08 CPU (20MHz bus). The system includes a 16-channel 10-bit A/D converter, 128kB internal flash, 8kB internal RAM, and 54 general-purpose I/O ports. This device also has peripherals including two serial peripheral interface modules (SPI), one inter-integrated circuit (IIC) bus module that can work at up to 100kbps, and two serial communications interface (SCI) modules. When conducting in-circuit debugging, breakpoint functionality permits the placement of a single breakpoint (plus two more breakpoints in the on-chip debug module). Debug module for the on-chip in-circuit emulator (ICE) that has three comparators and nine trigger modes. Change-of-flow addresses and event-only data are stored in an eight-deep FIFO.

MC9S08AC128CFUE Features

• Background debugging system

• Illegal opcode detection with reset

• 8-pin Keyboard interrupt module (KBI)

• Master reset pin and power-on reset (POR)

• Low-voltage detection with reset or interrupt

• Software selectable pull-ups on input port pins

• Optional computer operating properly (COP) reset

• Memory management unit to support paged memory

• HC08 Instruction set with added BGND, CALL, and RTC instructions

• CRC module to support fast cyclic redundancy checks on system memory

• Security circuitry to prevent unauthorized access to RAM and flash contents

MC9S08AC128CFUE Applications

• Industrial