pc peripherals (keyboard, mouse, joystick) rf wireless receivers usb converters usb security keys for e-commerce game pads set-top box peripherals t arget 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. ? 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 ? 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 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. 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 p art number p ackage temperature range mc68hc908jb8jp 20 dip 0 to 70? mc68hc908jb8adw 28 soic 0 to 70? mc68hc908jb8fb 44 qfp 0 to 70? mc68hc908jb8jdw 20 soic 0 to 70? sample packs p ackage temperature range kmc908jb8adw 28 soic 0 to 70? kmc908jb8fb 44 qfp 0 to 70? p ackage 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?ee 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 p art 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* 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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