Motorola and the stylized M Logo are registered in the U.S. Patent and Trademark Office. All other

product or service names are the property of their respective owners.

© Motorola, Inc. 2002

68HC908JB8PB/D

Rev. 1

• Improves reliability by resetting the

MCU when voltage drops below trip

point

• Integration reduces system cost

LOW-VOLTAGE INHIBIT

• High sink/source capability on all I/O

pins

• 25 mA sink capability on two I/O pins

• Keyboard scan with selectable

interrupts on eight I/O pins

• High-current capable I/O allows direct

drive of LED and other circuits to

eliminate external drivers and reduce

system costs

• Keyboard scan with programmable

pullups eliminate external glue logic

when interfacing to simple keypads

UP TO 37 BIDIRECTIONAL INPUT/OUTPUT (I/O) LINES

FEATURES

BENEFITS

RESALE

PART NUMBER

PACKAGE

TEMPERATURE

RANGE

MC68HC908JB8JP

20 DIP

0 to 70°C

MC68HC908JB8ADW

28 SOIC

0 to 70°C

MC68HC908JB8FB

44 QFP

0 to 70°C

MC68HC908JB8JDW

20 SOIC

0 to 70°C

SAMPLE PACKS

PACKAGE

TEMPERATURE

RANGE

KMC908JB8ADW

28 SOIC

0 to 70°C

KMC908JB8FB

44 QFP

0 to 70°C

PACKAGE OPTIONS

• AN1831/D Using MC68HC908 On-Chip

Programming Routines

• AN2093/D Creating Efficient C Code for the MC68HC08

• AN1219/D M68HC08 Integer Math Routines

• AN1218/D HC05 to HC08 Optimization

• AN1837/D Non-Volatile Memory Technology

Review

• AN1752/D Data Structures for 8-bit MCUs

• AN1705/D Noise Reduction Techniques for

MCU-Based Systems

• AN1259/D System Design and Layout Techniques for

Noise Reduction in MCU-Based Systems

• AN1263/D Designing for Electromagnetic Compatibility

with Single-Chip Microcontrollers

• AN1050/D Designing for Electromagnetic Compatibility

(EMC) with HCMOS Microcontrollers

• AN1705/D Noise Reduction Techniques for

Microcontroller-Based Systems

And many more—see our Web site at

http://www.motorola.com/mcu

APPLICATION NOTES

A FLASH MCU SOLUTION

68HC908JB8

* All prices are manufacturer’s suggested resale for North America.

COMPUTER OPERATING PROPERLY WATCHDOG TIMER

• Provides system protection in the event

of runaway code by resetting the MCU

to a known state

TWO PROGRAMMABLE 16-BIT TIMER CHANNELS

• 333 nsec resolution at 3 MHz bus

• Free-running counter or modulo up-

counter

• Each channel independently

programmable for input capture, output

compare or unbuffered PWM

• Pairing timer channels provides a

buffered PWM function

INDIVIDUAL DEVELOPMENT TOOL COMPONENTS

EASY-TO-ORDER DEVELOPMENT TOOL KITS

PART NUMBER

DESCRIPTION

M68ICS08JB

68HC908JB8

$295

Programmer/in-circuit

debug kit

KITMMEVS08JB

Cost-effective real-time

$1450

in-circuit emulator

KITMMDS08JB

High-performance real-time

$3950

in-circuit emulator kit

M68MMDS0508

High-performance emulator

$2950

M68MMPFB0508

MMEVS platform board

$395

M68EM08JB8

Emulation module daughter

$495

board

M68CBL05C

Low-noise flex cable

$120

M68CBL05B

Low-noise flex cable

$120

M68TC08JB8P20

20-pin DIP target head adapter

$100

M68TC08JB8FB44

44-pin QFP target head

$250

adapter

M68DIP20SOIC

20-pin SOIC-DW target

$50

head adapter

M68DIP28SOIC

28-pin SOIC-DW target

$50

head adapter

M68TQS044SAG1

44-pin TQ socket with guides

$50

M68TQP044SAM01

44-pin TQPACK

$70

RESALE*

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com