sensors industrial and consumer communications home appliances security systems t arget applications ? mhz bus operation at 5v operation for 125 nsec minimum instruction cycle time ? mhz bus operation at 3v for 250 nsec minimum instruction cycle time ? fficient 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 ? optimized architecture provides compact code high-performance 68hc08 cpu core integrated second generation flash memory 10-bit analog-to-digital converter four programmable 16-bit timer channels timebase module 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 100k write/erase cycles typical flexible block protection and security ? ost-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 ? rotects code from unauthorized reading and to guard against unintentional erasing/writing of user-programmable segments of code ? channels single conversion in 17 ?ec fast, easy conversion from analog inputs like temperature, pressure and fluid levels to digital values for cpu processing clock generation module with pll ? rogrammable clock frequency in integer multiples of external crystal reference ? rystal reference of 32 khz to 100 khz external clock option with or without pll ? rovides 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 ? ree-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 ? user-selectable periodic real-time interrupts optionally operate in low-power stop mode ? rovides auto wakeup from low-power stop mode to maintain real-time clock or check external device status such as sensors features benefits a flash mcu solution 68hc908gr16 8-bit microcontroller the 68hc908gr16 utilizes integrated second generation flash and is enhanced with embedded, on-chip functions that eliminate the need for external serial components. the 32 khz phase-locked loop provides cost savings by replacing the need for expensive, high-speed crystals or noisy oscillators. the on-chip timebase module (tbm) further reduces costs by eliminating the need for external real-time clock and wakeup circuitry. other features of the 68hc908gr16 are an analog-to-digital converter (adc), a serial communications interface (sci), a serial peripheral interface (spi), low-voltage inhibit (lvi) and a watchdog timer. hc08 cpu 16k flash pll 1k ram lvi cop kbi 8-ch 10-bit adc e sci spi 2-ch 16-bit 2-ch 16-bit t imer up to 37 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 . . .
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 68HC908GR16FS/d rev 0 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 issues reset in the event of runaway code computer operating properly watchdog timer improves reliability by resetting the mcu when voltage drops below trip point ? wo trip points allow optimum operation in both 5v and 3v nominal systems integration reduces system cost selectable trip point low-voltage inhibit 10 ma sink/source capability on all i/o pins 15 ma sink capability on two i/o pins keyboard scan with selectable interrupts on four i/o pins software programmable pullups on thirteen 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 37 bidirectional input/output (i/o) lines features benefits p ackage options a flash mcu solution 68hc908gr16 * all prices are manufacturer s suggested resale for north america. enhanced serial communications interface uart asynchronous communications system flexible baud rate generator double buffered transmit and receive optional hardware parity checking and generation enables high-speed asynchronous communication eb368/d in-circuit programming of 68hc908gr8 flash memory an1218/d hc05 to hc08 optimization an1831/d using mc68hc908 on-chip programming routines an1837/d non-volatile memory technology review an2093/d creating efficient c code for the mc68hc08 an1752/d data structures for 8-bit mcus an1219/d m68hc08 integer math routines an1705/d noise reduction t echniques 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 t echniques for microcontroller-based systems and many more see our web site at http://www.motorola.com/mcu application notes and engineering bulletins resale individual development tool components easy-to-order development tool kits pa rt number description kitmmevs08gz16 cost-effective real-time $1450 in-circuit emulator kit kitmmds08gz16 high-performance real-time $3950 in-circuit emulator kit m68mmds0508 high-performance emulator $2950 m68mmpfb0508 mmevs platform board $395 m68eml08gz16 emulation module daughter $495 board m68cbl05c low-noise flex cable $120 m68tc08gz16fj32 32-pin qfp target head adapter $200 m68tc08gz16fa48 48-pin dip target head adapter $200 m68tqp032sai 32-pin tqpack $70 m68tqp048sdi 48-pin tqpack $70 resale* pa rt number p ackage temperature range mc68hc908gr16cfj 32 qfp -40 to 85? mc68hc908gr16vfj 32 qfp -40 to 105? mc68hc908gr16mfj 32 qfp -40 to 125? mc68hc908gr16cfa 48 qfp -40 to 85? mc68hc908gr16vfa 48 qfp -40 to 105? mc68hc908gr16mfa 48 qfp -40 to 125? sample packs p ackage temperature range kmc908gr16mfj 32 qfp -40 to 125? kmc908gr16mfa 48 qfp -40 to 125? 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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