Freescale Semiconductor, Inc.
A FLASH MCU SOLUTION
68HC908RK2
8-bit Microcontroller
TARGET APPLICATIONS
鈥?Remote keyless entry
鈥?Hand held battery
operated devices
FEATURES
HIGH-PERFORMANCE 68HC08 CPU CORE
鈥?4 MHz bus operation at 3V operation for
250 nsec minimum instruction cycle time
鈥?2 MHz bus operation at 1.8V for 500
nsec minimum instruction cycle time
鈥?Efficient instruction set including
multiply and divide
鈥?16 flexible addressing modes including
stack relative with 16-bit stack pointer
鈥?Fully static low-voltage, low-power
design with wait and stop modes
BENEFITS
Freescale Semiconductor, Inc...
The 68HC908RK2 is optimized for
low-power operation down to 1.8V.
The 68HC908RK2 is a flexible, functional
solution that reduces operating costs
with on-chip features like an internal
oscillator that requires no external
components. The 68HC908RK2 also
includes multiple system protection
features and timers.
鈥?Object code compatible with the 68HC05
鈥?Easy to learn and use architecture
鈥?C optimized architecture provides
compact code
INTEGRATED FIRST GENERATION FLASH MEMORY
鈥?In-application re-programmable
鈥?FLASH programming across the
68HC08鈥檚 full operating supply voltage
with no extra programming voltage
鈥?Flexible block protection and security
鈥?Cost-effective programming changes
and field software upgrades via
in-application programmability and
re-programmability
鈥?Allows re-programmable battery
powered applications
鈥?Protects code from unauthorized reading
and to guard against unintentional
erasing/writing of user-programmable
segments of code
CPU08
KBI
PORT A
7
128 RAM
2K FLASH
MON
INTERNAL CLOCK GENERATOR
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Software selectable bus frequencies
2% accuracy with trim capability
Clock monitor
Option to use external clock source or
external crystal/ceramic oscillator
鈥?Programmable internal clock eliminates
the need and cost of an external clock
source
鈥?Accurate across temperature and
voltage
BRK
SIM
IRQ
TWO PROGRAMMABLE 16-BIT TIMER CHANNELS
COP
TIM
PORT B
8
LVI
鈥?250 nsec resolution at 4 MHz bus
鈥?Free-running counter or modulo up-
counter
ICG
鈥?Each channel independently
programmable for input capture, output
compare or unbuffered PWM
鈥?Pairing timer channels provides a
buffered PWM function
For More Information On This Product,
Go to: www.freescale.com
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