GENERAL DESCRIPTION

The MC68HC05CL48 HCMOS Microcontroller is a member of the M68HC05 family of low cost single chip microcontrollers. It is particularly suitable as a Caller ID telephone controller. This 8-bit microcontroller unit (MCU) contains on-chip oscillator, CPU, RAM, ROM, I/O, Timer, Watchdog Timer, SPI, A/D, Caller ID subsystem, LCD driver and a 32kHz PLL.

FEATURES

? Industry standard M68HC05 8-bit CPU core

? 32kHz PLL to generate the 3.6MHz system clock

? On-chip clock generator can be driven by crystal or external clock

? 47.5k-bytes of user ROM

? 2k-bytes of user RAM (64 bytes for stack)

? 16-bit Timer with 2 input captures and 2 output compares, the two output compare are used for interrupt generation only

? 15-stage Multi-function Timer

? One second Watch Timer

? COP (Computer Operating Properly) Watchdog Reset

? Serial Peripheral Interface (SPI)

? Four channel 8-bit A/D Converter

? Hardware Caller-ID subsystem

? 45 x 16 or 53 x 8 LCD driver

? 24 Bidirectional I/O lines

? Three software programmable external interrupts in addition to the standard IRQ interrupt.

? Five keyboard interrupts.

? Power saving STOP and WAIT modes

? Available in 112-pin TQFP package