? appliances ? data loggers ? industrial equipment ? automotive body electronics target applications ? 8 mhz bus operation at 5v operation for 125 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 high-performance 68hc08 cpu core integrated second generation flash memory integrated eeprom clock generation module with pll 8 programmable 16-bit timer channels ? in-application re-programmable ? extremely fast programming, encoding 64 bytes in as fast as 2 msec ? flash programming across the 68hc08s 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 ? byte erasable 8-bit analog-to-digital converter ? 8 channels ? single conversion in 17 sec ? fast, easy conversion from analog inputs like temperature, pressure, and fluid levels to digital values for cpu processing ? programmable clock frequency in integer multiples of external crystal reference ? crystal reference of 1 mhz to 8 mhz ? external clock option with or without pll ? provides high performance using low-cost, low-frequency reference crystals ? reduces generated noise while still providing high performance (up to 32 mhz internal clock) ? 125 nsec resolution at 8 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 features benefits a flash mcu solution 68hc908ab32 8-bit microcontroller the 68hc908ab32 flash microcontroller utilizes motorolas highly successful 68hc08 architecture and is code compatible with 68hc05 microcontrollers providing an efficient migration path to higher performance flash mcus. with 32,256 bytes of in-system, programmable flash memory and in-circuit programming capability, the 68hc908ab32 delivers high-performance while lowering costs. the 68hc908ab32 provides security and reliability with innovative features like a computer operating properly (cop) watchdog, selectable flash security, memory-mapped input/output registers, low-voltage inhibit (lvi) and stop and wait modes. hc08 cpu 32k flash 512 eeprom 1k ram lvi cop kbi 8-ch 8-bit adc sci spi 4-ch + 4-ch 16-bit timer 51 gpio f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
individual development tool components motorola and the stylized m logo are registered in the u.s. patent and trademark office. this product incorporates superflash ? technology licensed from sst. all other product or service names are the property of their respective owners. ? motorola, inc. 2003 68hc908ab32pb/d rev 2 ? full-duplex 3-wire synchronous transfers ? maximum master bit rate of 4 mhz for 8 mhz system clock ? high-speed synchronous communication between multiple mcus or between mcu and serial peripherals ? cost-effective serial peripheral expansion to eeprom, high-precision a/d and d/a converters, real-time clocks, etc. serial peripheral interface ? provides periodic interrupts periodic interrupt timer ? provides system protection in the event of runaway code by resetting the mcu to a known state computer operating properly watchdog timer ? improves reliability by resetting the mcu when voltage drops below trip point ? integration reduces system cost low-voltage inhibit ? 10 ma sink/source capability on all i/o pins ? 15 ma sink capability on eight i/o pins ? keyboard scan with selectable interrupts on five i/o pins ? software programmable pullups on i/o pins ? high-current i/o allows direct drive of led and other circuits to eliminate external drivers and reduce system costs ? keyboard scan with programmable pullups eliminates external glue logic when interfacing to simple keypads up to 51 bidirectional input/output (i/o) lines features benefits easy-to-order development tool kits part number description m68ics08ab 68hc908ab32 $295 programmer/in-circuit debug kit kitmmevs08ab32 cost-effective real-time $1450 in-circuit emulator kit kitmmds08ab32 high-performance real-time $3950 in-circuit emulator kit m68mmds0508 high-performance emulator $2950 m68mmpfb0508 mmevs platform board $395 m68eml08ab32 emulation module daughter $495 board m68cbl05c low-noise flex cable $120 m68tc08ab32fu64 64-pin qfp target head $300 adapter m68tqs064sag164-pin tq socket with $50 guides m68tqp064sa164-pin tqpack $70 resale part number package temperature range mc68hc908ab32cfu 64 qfp -40 to 85c mc68hc908ab32vfu 64 qfp -40 to 105c mc68hc908ab32mfu 64 qfp -40 to 125c sample packs package temperature range kmc908ab32cfu 64 qfp -40 to 85c kmc908ab32vfu 64 qfp -40 to 105c kmc908ab32mfu 64 qfp -40 to 125c package options ? 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: system design and layout techniques for noise reduction in mcu-based systems ? an1263: designing for electromagnetic compatibility with single-chip microcontrollers ? an1050: designing for electromagnetic compatibility (emc) with hcmos microcontrollers ? an1705: noise reduction techniques for microcontroller-based systems and many moresee our web site at http://www.motorola.com/mcu application notes a flash mcu solution 68hc908ab32 * all prices are manufacturers suggested resale for north america. serial communications interface ? uart asynchronous communications system ? flexible baud rate generator ? double buffered transmit and receive ? optional hardware parity checking and generation ? asynchronous communication between the mcu and a terminal, computer or a network of microcontrollers 1atx46453-1 printed in usa 05/03 imperial litho 56466 5,000 litcsg1 f r e e s c a l e s e m i c o n d u c t o r , i freescale semiconductor, inc. f o r m o r e i n f o r m a t i o n o n t h i s p r o d u c t , g o t o : w w w . f r e e s c a l e . c o m n c . . .
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