MC68HC908JL8CSP View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC68HC908JL8CSP

M68HC08 Microcontrollers

Freescale Semiconductor 

INTERNAL BUS

CPU

REGISTERS

M68HC08 CPU

ARITHMETIC/LOGIC

UNIT (ALU)

CONTROL AND STATUS REGISTERS — 64 BYTES

USER ROM — 8,192 BYTES

USER RAM — 256 BYTES

MONITOR ROM — 447 BYTES

USER ROM VECTORS — 36 BYTES

OSC1

¥ OSC2/RCCLK

CRYSTAL OSCILLATOR

RC OSCILLATOR

INTERNAL OSCILLATOR

* RST

* IRQ

SYSTEM INTEGRATION

MODULE

EXTERNAL INTERRUPT

MODULE

KEYBOARD INTERRUPT

MODULE

8-BIT ANALOG-TO-DIGITAL

CONVERTER MODULE

2-CHANNEL TIMER INTERFACE

MODULE 1

2-CHANNEL TIMER INTERFACE

MODULE 2

BREAK

MODULE

SERIAL COMMUNICATIONS

INTERFACE MODULE

POWER-ON RESET

MODULE

LOW-VOLTAGE INHIBIT

MODULE

COMPUTER OPERATING

PROPERLY MODULE

PTA7/KBI7**‡ #

PTA6/KBI6**¥

PTA5/KBI5**‡

PTA4/KBI4**‡

PTA3/KBI3**‡

PTA2/KBI2**‡

##

PTA1/KBI1**‡

PTA0/KBI0**‡

PTB7/ADC7

PTB6/ADC6

PTB5/ADC5

PTB4/ADC4

PTB3/ADC3

PTB2/ADC2

PTB1/ADC1

PTB0/ADC0

ADC12/T2CLK #

PTD7/RxD**†‡

PTD6/TxD**†‡

PTD5/T1CH1

PTD4/T1CH0

PTD3/ADC8‡

PTD2/ADC9‡

PTD1/ADC10

##

PTD0/ADC11

PTE1/T2CH1

#

PTE0/T2CH0

VDD

POWER

VSS

ADC REFERENCE

* Pin contains integrated pull-up device.

** Pin contains programmable pull-up device.

† 25mA open-drain if output pin.

‡ LED direct sink pin.

¥ Shared pin: OSC2/RCCLK/PTA6/KBI6.

# Pins available on 32-pin packages only.

## Pins available on 28-pin and 32-pin packages only.

Shaded blocks indicate differences to MC68HC908JL8

Figure A-1. MC68HC08JL8 Block Diagram

A.4 Reserved Registers

The two registers at $FE08 and $FFCF are reserved locations on the MC68HC08JL8.

On the MC68HC908JL8, these two locations are the FLASH control register and the FLASH block protect

register respectively.

MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1

202

Freescale Semiconductor

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