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Электронный компонент: 68HC908JB8FS

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PC peripherals
(keyboard, mouse, joystick)
RF wireless receivers
USB converters
USB security keys for
e-commerce
Game pads
Set-top box peripherals
TARGET APPLICATIONS
HIGH-PERFORMANCE 68HC08 CPU CORE
INTEGRATED SECOND GENERATION FLASH MEMORY
FULL USB 1.1 SPECIFICATION LOW-SPEED FUNCTIONS
MULTIPLE CLOCK OPTIONS
In-application re-programmable
Extremely fast programming, encoding
64 bytes in as fast as 2 msec
FLASH programming across the 68HC08's
full operating supply voltage with no extra
programming voltage
10K write/erase cycles minimum over
temperature
Flexible block protection and security
Cost-effective programming changes and
field software upgrades via in-application
programmability and re-programmability
Reduces production programming costs
through ultra-fast programming
Allows re-programmable battery-powered
applications
Byte-writable for data as well as program
memory
Protects code from unauthorized reading
and to guard against unintentional
erasing/writing of user-programmable
segments of code
1.5 Mbps data rate
On-chip 3.3V regulator
Endpoint 0 with 8-byte transmit buffer and
8-byte receive buffer
Endpoint 1 with 8-byte transmit buffer
Endpoint 2 with 8-byte transmit buffer and
8-byte receive buffer
Designed to serve as a low-speed (LS) USB
device, in accordance with the Universal
Serial Bus Specification Rev. 1.1
Integrated 3.3V regulator reduces system
cost
Crystal oscillator
Ceramic oscillator
External clock
RC oscillator
Flexible clock options optimize timing
accuracy with system cost
FEATURES
BENEFITS
A FLASH MCU SOLUTION
68HC908JB8
8-bit Microcontroller
This 8-bit 68HC908JB8 is an upwardly
compatible, versatile migration from
Motorola's groundbreaking 68HC05
universal serial bus (USB) Family. The
innovative design features an on-chip USB
module for faster, more reliable PC
peripheral applications. An energy-saving,
low-power solution, the 68HC908JB8 is
embedded with Motorola's second-
generation embedded FLASH technology to
enable in-system programmability.
3 MHz bus operation at 3V for 333 nsec
minimum instruction cycle time
Efficient instruction set including multiply
and divide
16 flexible addressing modes including
stack relative with 16-bit stack pointer
Fully static low-voltage, low-power design
with wait and stop modes
Object code compatible with the 68HC05
Easy to learn and use architecture
C optimized architecture provides compact
code
CPU08
256 RAM
8K FLASH
MON
BRK
SIM
IRQ
COP
LVI
OSC
TIM
KBI
USB
PORT A
PORT B
PORT C
PORT D
PORT E
V
RE
G
8
8
8
8
5
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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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 70C
MC68HC908JB8ADW
28 SOIC
0 to 70C
MC68HC908JB8FB
44 QFP
0 to 70C
MC68HC908JB8JDW
20 SOIC
0 to 70C
SAMPLE PACKS
PACKAGE
TEMPERATURE
RANGE
KMC908JB8ADW
28 SOIC
0 to 70C
KMC908JB8FB
44 QFP
0 to 70C
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*
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
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.