the pd78082x devices are high-speed 8-bit microcontrollers with a can controller, as well as an lcd controller capable of controlling and directly driving up to 112 lcd segments. the can controller, together with their high level of integration (using necs 0.35-micron cmos process technology), makes the devices a cost-effective solution for many automotive electronics and industrial control applications. the pd78082x devices have low emi emissions, 256 bytes of eeprom, and a host of on-chip peripherals. a flash version is also available, as is an extensive tool chain containing a software simulator, c compiler, relocatable assembler, screen debugger, and in-circuit emulator. pd78082x 8-bit microcontrollers with can, lcd, and motor controllers block diagram sm21 sm24 sm31 sm34 sm41 sm44 98yl-0208b (10/98) av ss av dd ani0?ni4 x1 x2 smv dd smv ss pcl p0?6 p8?9 .... hardware multiply and divide clocks and system control system control 32 general- purpose 8-bit registers ram 1k/1.5k/2k cpu motor controller ports 59 i/o pins 5-channel, 8-bit a/d converter memory rom 24k/32k (60k flash) eeprom 256 bytes ti22 16-bit timer tm2 3 capture real-time clock timers reset v dd v ss v pp main clock clock output sound generator intp0 intp2 sgo programmable interrupts s0 s27 com0 com3 28 segments 4 common lcd controller system registers ?pc ?psw ?stack pointer cpu control alu ti21 ti20 tpos21 si3 so3 sck3 ti051 tio50 8-bit timer/event counter 51 8-bit timer/event counter 50 8-bit timer 52 serial channels watchdog timer serial channel 3 rxd0 txd0 uart with baud rate generator crxd ctxd can interface sm11 sm14 ? clock frequency: 4 to 8 mhz ? 250 ns instruction execution time (min.) ? 4.0- to 5.5-volt operation ? emi emissions: 10C15 db lower than most equivalent microcontrollers ? operating temperature: C40 to +85oc specifications ? power consumption C normal operation: 38 mw C halt mode: 4.8 mw C stop mode: 0.004 mw ? 0.35-micron cmos process technology ? 80-pin qfp (14 x 14 x 2.70 mm) ? highly reliable grade a devices available
? peripherals C lcd contr oller (28 segments x 4 common) C 59 general-purpose por ts C one 16-bit timer C t wo 8-bit timer/event counters C one 8-bit timer C one watchdog/inter val timer C serial channels one synchr onous channel one uar t with baud rate generator C can 2.0 b inter face 500k baud at 8 mhz t wo transmit channels 16 message identifiers 288 bytes of ram C five-channel 8-bit a/d conver ter: 18 s conversion time C sound generator C stepper motor contr oller ? ar chitectur e C 8-bit cpu C instr uction set that operates on bit, byte, or wor d operands C four r egister banks: eight 8-bit r egisters per bank ? memor y C 64kb linear addr ess space C up to 32k inter nal rom C 60k flash version available C 256 bytes eeprom C inter nal ram 1k C 2k fully static operation ? inter r upts C one non-maskable inter r upt C thr ee exter nal maskable inter r upts C 20 inter nal maskable inter r upts C automatic r elease of halt and stop modes ? low emi emissions fea tures nor mal mode: chip 100% on main and subsystem clocks on main and subsystem clocks on no 32-khz subsystem clock hal t and stop modes for pd78082 x (typical power a t 8 mh z ) halt mode: cpu clock off v oltage 5 v stop mode: main clock off 38 mw 4.8 mw 0.004 mw ordering informa tion k0 f amil y with can interf ace par t number inter nal rom eeprom pd780823gc 24k mask rom 256 bytes pd780824gc 32k mask rom 256 bytes PD78F0828GC 60k flash 256 bytes peripherals pd780949 pd780828 pd780818 rom max. 60k 32k 32k ram max. 2k 2k 2k flash version 60k 60k 60k t imers 6 6 6 serial channels 4 3 3 (with can) 8-bit a/d channels 8 5 12 general-purpose pins 78 59 46 lcd contr oller 40 x 4 28 x 4 C subsystem clock y es (rc) C y es (rc) motor contr oller C y es C ? 1998 nec electr onics inc. nec is either a trademark or a r egister ed trademark of nec corporation in the united states and/or other countries. all other trademarks ar e the pr oper ty of their r espective owners. no par t of this document may be copied or r epr oduced in any for m or by any means without the prior written consent of nec electr onics inc. (necel). the infor mation in this document is subject to change without notice. all devices sold by necel are covered by the provisions appearing in necel terms and conditions of sales onl y , including the limit a tion of liability , w arranty , and p a tent provisions. necel makes no war ranty , expr ess, statutor y , implied, or by descrip - tion, r egar ding infor mation set for th her ein or r egar ding the fr eedom of the described devices fr om patent infringement. necel assumes no r esponsibility for any er r ors that may appear in this document. necel makes no commitments to update or to keep cur r ent infor mation contained in this document. the devices listed in this document ar e not suitable for use in applications such as, but not limited to, air craft contr ol systems, aer ospace equipment, submarine cables, nuclear r eactor con - tr ol systems, and life-suppor t systems. standar d quality grade devices ar e r ecommended for computers, of fice equipment, communication equipment, test and measur ement equipment, machine tools, industrial r obots, audio and visual equip - ment, and other consumer pr oducts. for automotive and transpor tation equipment, traf fic contr ol systems, and anti-disaster and anti-crime systems, it is r ecommended that the customer contact the r esponsible necel salesperson to deter mine the r eliability r equir ements for any such application and any cost adder . necel does not r ecommend or appr ove use of any of its pr oducts in life-suppor t devices or systems or in any application wher e failur e could r esult in injur y or death. if cus - tomers wish to use necel devices in applications not intended by necel, customers must contact the r esponsible necel salespeople to deter mine necel s willingness to suppor t a given application. document # u13838eu1v0pb00 for literatur e, call 1-800-366-9782 7 a.m. to 6 p.m. pacific time or fax your r equest to 1-800-729-9288 or visit our w eb site at www .nec.com
|
