68HC05CL48 datasheet(13/145 Pages) MOTOROLA

13 / 145 page

June 11, 1997

GENERAL RELEASE SPECIFICATION

MC68HC05CL48

GENERAL DESCRIPTION

MOTOROLA

REV 2.0

1-1

SECTION 1

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.

1.1

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.

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