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1996 microchip technology inc. advanced information ds40141a-page 1 devices included in this data sheet: pic16fr54 PIC16FR55 pic16fr56 pic16fr57 high-performance risc cpu features: only 33 single word instructions to learn all instructions are single cycle (200 ns) except for program branches which are two-cycle operating speed: dc - 20 mhz clock input dc - 200 ns instruction cycle 12-bit wide instructions 8-bit wide data path seven or eight special function hardware registers two-level deep hardware stack direct, indirect and relative addressing modes for data and instructions peripheral features: 8-bit real time clock/counter (timer0) with 8-bit programmable prescaler power-on reset (por) device reset timer (drt) watchdog timer (wdt) with its own on-chip rc oscillator for reliable operation programmable code-protection power saving sleep mode selectable oscillator options: - rc: low-cost rc oscillator - xt: standard crystal/resonator - hs: high-speed crystal/resonator - lp: power saving, low frequency crystal device pins i/o flexrom ram pic16fr54 18 12 512 25 PIC16FR55 28 20 512 24 pic16fr56 18 12 1k 25 pic16fr57 28 20 2k 72 cmos technology: low-power, high-speed cmos flexrom technology fully static design wide-operating voltage range: - flexrom commercial/industrial 2.5v to 6.25v low-power consumption - < 2 ma typical @ 5.0v, 4 mhz - 15 m a typical @ 3.0v, 32 khz - < 3 m a typical standby current (with wdt disabled) @ 3.0v, 0 c to 70 c flexrom ? -based 8-bit cmos microcontroller series pic16fr5x pin con?urations pdip, soic 18 17 16 15 14 13 12 11 10 ? 2 3 4 5 6 7 8 9 ra2 ra3 t0cki mclr v ss rb0 rb1 rb2 rb3 ra1 ra0 osc1/clkin osc2/clkout v dd rb7 rb6 rb5 rb4 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ? 2 3 4 5 6 7 8 9 10 11 12 13 14 mclr osc1/clkin osc2/clkout rc7 rc6 rc5 rc4 rc3 rc2 rc1 rc0 rb7 rb6 rb5 pdip, soic t0cki v dd n/c v ss n/c ra0 ra1 ra2 ra3 rb0 rb1 rb2 rb3 rb4 pic16fr57 pic16fr54 pic16fr56 PIC16FR55 this document was created with framemake r404
pic16fr5x ds40141a-page 2 advanced information 1996 microchip technology inc. pin diagrams (con?) ra1 ra0 osc1/clkin osc2/clkout v dd v dd rb7 rb6 rb5 rb4 ra2 ra3 t0cki mclr v ss v ss rb0 rb1 rb2 rb3 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 pic16fr54 pic16fr56 ssop mclr osc1/clkin osc2/clkout rc7 rc6 rc5 rc4 rc3 rc2 rc1 rc0 rb7 rb6 rb5 t0cki v dd v ss ra0 ra1 ra2 ra3 rb0 rb1 rb2 rb3 rb4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 pic16fr57 ssop PIC16FR55 v dd v ss
1996 microchip technology inc. advanced information ds40141a-page 3 pic16fr5x 1.0 general description the pic16fr5x from microchip technology is a family of low-cost, high performance, 8-bit, fully static, flexrom -based cmos microcontrollers. this family is pin and software compatible with the enhanced pic16fr5x family of devices. it employs a risc architecture with only 33 single word/single cycle instructions. all instructions are single cycle (200 ns) except for program branches which take two cycles. the pic16fr5x delivers performance an order of magnitude higher than its competitors in the same price category. the 12-bit wide instructions are highly symmetrical resulting in 2:1 code compression over other 8-bit microcontrollers in its class. the easy to use and easy to remember instruction set reduces development time signi?antly. the pic16fr5x products are equipped with special features that reduce system cost and power requirements. the power-on reset (por) and device reset timer (drt) eliminate the need for external reset circuitry. there are four oscillator con?urations to choose from, including the power-saving lp (low power) oscillator and cost-saving rc oscillator. power saving sleep mode, watchdog timer and code protection features improve system cost, power and reliability. the pic16fr5x products are supported by a full-featured macro assembler, a software simulator, an in-circuit emulator, a ? compiler, fuzzy logic support tools, a low-cost development programmer, and a full featured programmer. all the tools are supported on ibm pc-at and compatible machines. 1.1 applications the pic16fr5x series ?s perfectly in applications ranging from high-speed automotive and appliance motor control to low-power remote transmitters/ receivers, pointing devices and telecom processors. the flexrom technology makes customizing application programs (transmitter codes, motor speeds, receiver frequencies, etc.) extremely fast and convenient. the small footprint packages, for through- hole or surface mounting, make this microcontroller series perfect for applications with space limitations. low-cost, low-power, high performance, ease of use and i/o ?xibility make the pic16fr5x series very versatile even in areas where no microcontroller use has been considered before (e.g., timer functions, replacement of ?lue?logic in larger systems, coprocessor applications). this document was created with framemake r404
pic16fr5x ds40141a-page 4 advanced information 1996 microchip technology inc. table 1-1: pic16fr5x family of devices pic16fr54 20 512 25 tmr0 12 2.5-6.25 33 18-pin dip, soic; 20-pin ssop pic16fr54a 20 512 25 tmr0 12 2.5-6.25 33 18-pin dip, soic; 20-pin ssop PIC16FR55 20 512 24 tmr0 20 2.5-6.25 33 28-pin dip, soic, ssop pic16fr56 20 1k 25 tmr0 12 2.5-6.25 33 18-pin dip, soic; 20-pin ssop pic16fr57 20 2k 72 tmr0 20 2.5-6.25 33 28-pin dip, soic, ssop pic16fr58a 20 2k 73 tmr0 12 2.5-6.25 33 18-pin dip, soic; 20-pin ssop all pic16/17 family devices have power-on reset, selectable watchdog timer, selectable code protect and high i/o current capability. maximum frequency of operation (mhz) flexrom program memory (words) ram data memory (bytes) timer module(s) i/o pins voltage range (volts) number of instructions packages clock memory peripherals features
1996 microchip technology inc. advanced information ds40141a-page 5 pic16fr5x 2.0 architectural overview this section provides information on the architecture of the pic16fr5x. for information on operation of the peripherals, electrical speci?ations, etc., please refer to the pic16c5x data sheet. figure 2-1: pic16fr5x series block diagram wdt time out 8 stack 1 stack 2 flexrom 512 x 12 to 2048 x 12 instruction register instruction decoder watchdog timer configuration word oscillator/ timing & control general purpose register file (sram) 24, 25 or 72 bytes wdt/tmr0 prescaler option reg. ?ption ?leep ?ode protect ?sc select direct address tmr0 from w from w ?ris 5 ?ris 6 ?ris 7 fsr trisa porta trisb portc trisc portb from w t0cki pin 9-11 9-11 12 12 8 w 4 4 4 data bus 8 8 8 8 8 8 8 alu status from w clkout 8 9 6 5 5-7 osc1 osc2 mclr literals pc ?isable 2 ra3:ra0 rb7:rb0 rc7:rc0 (28 pin devices only) direct ram address this document was created with framemake r404
pic16fr5x ds40141a-page 6 advanced information 1996 microchip technology inc. table 2-1: pic16fr54/fr56 pinout description name dip, soic no. ssop no. i/o/p type input levels description ra0 ra1 ra2 ra3 17 18 1 2 19 20 1 2 i/o i/o i/o i/o ttl ttl ttl ttl bi-directional i/o port rb0 rb1 rb2 rb3 rb4 rb5 rb6 rb7 6 7 8 9 10 11 12 13 7 8 9 10 11 12 13 14 i/o i/o i/o i/o i/o i/o i/o i/o ttl ttl ttl ttl ttl ttl ttl ttl bi-directional i/o port t0cki 3 3 i st clock input to timer0. must be tied to v ss or v dd, if not in use, to reduce current consumption. mclr 4 4 i st master clear (reset) input. this pin is an active low reset to the device. osc1/clkin 16 18 i st oscillator crystal input/external clock source input. osc2/clkout 15 17 o oscillator crystal output. connects to crystal or resonator in crystal oscillator mode. in rc mode, osc2 pin outputs clkout which has 1/4 the frequency of osc1, and denotes the instruction cycle rate. v dd 14 15,16 p positive supply for logic and i/o pins. v ss 5 5,6 p ground reference for logic and i/o pins. legend: i = input, o = output, i/o = input/output, p = power, ?= not used, ttl = ttl input, st = schmitt trigger input
1996 microchip technology inc. advanced information ds40141a-page 7 pic16fr5x table 2-2: PIC16FR55/fr57 pinout description name dip, soic no. ssop no. i/o/p type input levels description ra0 ra1 ra2 ra3 6 7 8 9 5 6 7 8 i/o i/o i/o i/o ttl ttl ttl ttl bi-directional i/o port rb0 rb1 rb2 rb3 rb4 rb5 rb6 rb7 10 11 12 13 14 15 16 17 9 10 11 12 13 15 16 17 i/o i/o i/o i/o i/o i/o i/o i/o ttl ttl ttl ttl ttl ttl ttl ttl bi-directional i/o port rc0 rc1 rc2 rc3 rc4 rc5 rc6 rc7 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 i/o i/o i/o i/o i/o i/o i/o i/o ttl ttl ttl ttl ttl ttl ttl ttl bi-directional i/o port t0cki 1 2 i st clock input to timer0. must be tied to v ss or v dd, if not in use, to reduce current consumption. mclr 28 28 i st master clear (reset) input. this pin is an active low reset to the device. osc1/clkin 27 27 i st oscillator crystal input/external clock source input. osc2/clkout 26 26 o oscillator crystal output. connects to crystal or resonator in crystal oscillator mode. in rc mode, osc2 pin outputs clkout which has 1/4 the frequency of osc1, and denotes the instruction cycle rate. v dd 2 3,4 p positive supply for logic and i/o pins. v ss 4 1,14 p ground reference for logic and i/o pins. n/c 3,5 unused, do not connect legend: i = input, o = output, i/o = input/output, p = power, ?= not used, ttl = ttl input, st = schmitt trigger input
pic16fr5x ds40141a-page 8 advanced information 1996 microchip technology inc. 3.0 memory organization figure 3-1: pic16fr54/fr55 program memory map and stack figure 3-2: pic16fr56 program memory map and stack pc<8:0> stack level 1 stack level 2 user memory space call, retlw 9 000h 1ffh reset vector 0ffh 100h on-chip program memory pc<9:0> stack level 1 stack level 2 user memory space 10 000h 1ffh reset vector 0ffh 100h on-chip program memory (page 0) on-chip program memory (page 1) 200h 3ffh 2ffh 300h call, retlw figure 3-3: pic16fr57 program memory map and stack pc<10:0> stack level 1 stack level 2 user memory space 11 000h 1ffh reset vector 0ffh 100h on-chip program memory (page 0) on-chip program memory (page 1) on-chip program memory (page 2) on-chip program memory (page 3) 200h 3ffh 2ffh 300h 400h 5ffh 4ffh 500h 600h 7ffh 6ffh 700h call, retlw this document was created with framemake r404
1996 microchip technology inc. advanced information ds40141a-page 9 pic16fr5x figure 3-4: pic16fr54/fr56 register file map file address 00h 01h 02h 03h 04h 05h 06h 07h 1fh indf (1) tmr0 pcl status fsr porta portb general purpose registers note 1: not a physical register. 0fh 10h figure 3-5: PIC16FR55 register file map file address 00h 01h 02h 03h 04h 05h 06h 07h 1fh indf (1) tmr0 pcl status fsr porta portb general purpose registers 0fh 10h portc 08h note 1: not a physical register. figure 3-6: pic16fr57 register file map file address 00h 01h 02h 03h 04h 05h 06h 07h 1fh indf (1) tmr0 pcl status fsr porta portb 0fh 10h bank 0 bank 1 bank 2 bank 3 3fh 30h 20h 2fh 5fh 50h 40h 4fh 7fh 70h 60h 6fh general purpose register general purpose registers general purpose registers general purpose registers general purpose registers portc 08h addresses map back to addresses in bank 0. note 1: not a physical register. fsr<6:5> 00 01 10 11
pic16fr5x ds40141a-page 10 advanced information 1996 microchip technology inc. table 3-1: special function register summary address name bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 value on power-on reset value on mclr and wdt reset n/a tris i/o control registers (trisa, trisb, trisc) 1111 1111 1111 1111 n/a option contains control bits to con?ure timer0 and timer0/wdt prescaler --11 1111 --11 1111 00h indf uses contents of fsr to address data memory (not a physical register) xxxx xxxx uuuu uuuu 01h tmr0 8-bit real-time clock/counter xxxx xxxx uuuu uuuu 02h (1) pcl low order 8 bits of pc 1111 1111 1111 1111 03h status pa2 pa1 pa0 t o pd zdcc 0001 1xxx 000q quuu 04h fsr indirect data memory address pointer 1xxx xxxx 1uuu uuuu 05h porta ra3 ra2 ra1 ra0 ---- xxxx ---- uuuu 06h portb rb7 rb6 rb5 rb4 rb3 rb2 rb1 rb0 xxxx xxxx uuuu uuuu 07h (2) portc rc7 rc6 rc5 rc4 rc3 rc2 rc1 rc0 xxxx xxxx uuuu uuuu legend: shaded boxes = unimplemented or unused, ?= unimplemented, read as '0' (if applicable) x = unknown, u = unchanged, q = value depends on condition. note 1: the upper byte of the program counter is not directly accessible. see section 4.5 of the pic16c5x data sheet (ds30015m) for an explanation of how to access these bits. 2: file address 07h is a general purpose register on the pic16fr54/fr56.
1996 microchip technology inc. advanced information ds40141a-page 11 pic16fr5x connecting to microchip bbs connect worldwide to the microchip bbs using the compuserve ? communications network. in most cases a local call is your only expense. the microchip bbs connection does not use compuserve member ship services, therefore, you do not need compuserve membership to join microchip's bbs . there is no charge for connecting to the bbs, except toll charge to compuserve access number, where applicable. you do not need to be a compuserve member to take advantage of this connection (you never actually log in to compuserve). the procedure to connect will vary slightly from country to country. please check with your local compuserve agent for details if you have a problem. compuserve service allows multiple users at baud rates up to 14,400 bps. the following connect procedure applies in most locations: 1. set your modem to 8-bit, no parity, and one stop (8n1). this is not the normal compuserve setting which is 7e1. 2. dial your local compuserve access number. 3. depress and a garbage string will appear because compuserve is expecting a 7e1 setting. 4. type +, depress and host name: will appear. 5. type mchipbbs, depress < enter ? > and you will be connected to the microchip bbs. in the united states, to ?d compuserve's phone number closest to you, set your modem to 7e1 and dial (800) 848-4480 for 300-2400 baud or (800) 331-7166 for 9600-14400 baud connection. after the system responds with host name: type, network, depress < enter ? > and follow compuserve's directions. for voice information (or calling from overseas), you may call (614) 723-1550 for your local compuserve number. access to the internet microchips current www address is listed on the back page of this data sheet under worldwide sales & service - americas - corporate of?e. trademarks: the microchip name, logo and pic are registered trademarks in the u.s.a. and other countries of microchip technology incorporated in the u.s.a. flexrom is a trademark of microchip technology incorporated. sqtp is a service mark of microchip technology inc. i 2 c is a trademark of philips corporation. ibm, ibm pc-at are registered trademarks of international business machines corp. ms-dos, microsoft windows and windows are registered trademarks of microsoft corporation. compuserve is a registered trademark of compuserve incorporated. all other trademarks mentioned herein are the property of their respective companies. this document was created with framemake r404
pic16fr5x ds40141a-page 12 advanced information 1996 microchip technology inc. reader response it is our intention to provide you with the best documentation possible to ensure successful use of your microchip prod- uct. if you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please fax your comments to the technical publications manager at (602) 786-7578. please list the following information, and use this outline to provide us with your comments about this data sheet. 1. what are the best features of this document? 2. how does this document meet your hardware and software development needs? 3. do you ?d the organization of this data sheet easy to follow? if not, why? 4. what additions to the data sheet do you think would enhance the structure and subject? 5. what deletions from the data sheet could be made without affecting the overall usefullness? 6. is there any incorrect or misleading information (what and where)? 7. how would you improve this document? 8. how would you improve our software, systems, and silicon products? to : technical publications manager re: reader response total pages sent from: name company address city / state / zip / country telephone: (_______) _________ - _________ application (optional): would you like a reply? y n device: literature number: questions: fax: (______) _________ - _________ ds40141a pic16fr5x
1996 microchip technology inc. advanced information ds40141a-page 13 pic16fr5x pic16fr54/55/56/57 product identification system to order or obtain information (e.g., on pricing or delivery) refer to the factory or the listed sales of?e. p ar t no . -xx x /xx xxx pattern package temperature range oscillator type device device pic16fr54, pic16fr54t (2) PIC16FR55, PIC16FR55t (2) pic16fr56, pic16fr56t (2) pic16fr57, pic16fr57t (2) oscillator type rc lp xt hs 10 = resistor capacitor = low power crystal = standard crystal/resonator = high speed crystal = 10 mhz crystal temperature range b (1) i =0 c to +70 c (commercial) = -40 c to +85 c (industrial) package p so sp ss = pdip = soic (gull wing, 300 mil body) = skinny pdip (28 pin, 300 mil body) = ssop (209 mil body) pattern 3-digit pattern code for flexrom (blank otherwise) examples: a) pic16fr54 - xt/p123 = "xt" oscillator, commercial temp., pdip, pattern #123. b) PIC16FR55 - xti/so456 = "xt" oscilla- tor, industrial temp., soic, pattern #456. note 1: b = blank 2: t = in tape and reel - soic, ssop packages only. sales and suppor t products supported by a preliminary data sheet may possibly have an errata sheet describing minor operational differences and recommended workarounds. to determine if an errata sheet exists for a particular device, please contact one of the following: your local microchip sales of?e (see below) the microchip corporate literature center u.s. fax: (602) 786-7277 the microchips bulletin board, via your local compuserve number (compuserve membership not required). please specify which device, revision of silicon and data sheet (include literature #) you are using. for latest version information and upgrade kits for microchip development tools, please call 1-800-755-2345 or 1-602-786-7302. 1. 2. 3. this document was created with framemake r404
pic16fr5x ds40141a-page 14 advanced information 1996 microchip technology inc. notes:
1996 microchip technology inc. advanced information ds40141a-page 15 pic16fr5x notes:
europe united kingdom arizona microchip technology ltd. unit 6, the courtyard meadow bank, furlong road bourne end, buckinghamshire sl8 5aj tel: 44 1 628 850303 fax: 44 1 628 850178 france arizona microchip technology sarl zone industrielle de la bonde 2 rue du buisson aux fraises 91300 massy - france tel: 33 1 69 53 63 20 fax: 33 1 69 30 90 79 germany arizona microchip technology gmbh gustav-heinemann-ring 125 d-81739 muenchen, germany tel: 49 89 627 144 0 fax: 49 89 627 144 44 italy arizona microchip technology srl centro direzionale colleoni palazzo taurus 1 v. le colleoni 1 20041 agrate brianza, milan italy tel: 39 39 689 9939 fax: 39 39 689 9883 japan microchip technology intl. inc. benex s-1 6f 3-18-20, shin yokohama kohoku-ku, yokohama kanagawa 222 japan tel: 81 45 471 6166 fax: 81 45 471 6122 4/08/96 americas (continued) new york microchip technology inc. 150 motor parkway, suite 416 hauppauge, ny 11788 tel: 516 273-5305 fax: 516 273-5335 san jose microchip technology inc. 2107 north first street, suite 590 san jose, ca 95131 tel: 408 436-7950 fax: 408 436-7955 canada microchip technology inc. 5925 airport road, suite 200 mississauga, ontario l4v 1w1, canada tel: 905 405-6279 fax: 905 405-6253 asia/pacific hong kong microchip technology unit no. 3002-3004, tower 1 metroplaza 223 hing fong road kwai fong, n.t. hong kong tel: 852 2 401 1200 fax: 852 2 401 3431 korea microchip technology 168-1, youngbo bldg. 3 floor samsung-dong, kangnam-ku, seoul, korea tel: 82 2 554 7200 fax: 82 2 558 5934 singapore microchip technology 200 middle road #10-03 prime centre singapore 188980 tel: 65 334 8870 fax: 65 334 8850 taiwan microchip technology 10f-1c 207 tung hua north road taipei, taiwan, roc tel: 886 2 717 7175 fax: 886 2 545 0139 americas corporate of?e microchip technology inc. 2355 west chandler blvd. chandler, az 85224-6199 tel: 602 786-7200 fax: 602 786-7277 technical support: 602 786-7627 web: http://www.mchip.com/microchip atlanta microchip technology inc. 500 sugar mill road, suite 200b atlanta, ga 30350 tel: 770 640-0034 fax: 770 640-0307 boston microchip technology inc. 5 mount royal avenue marlborough, ma 01752 tel: 508 480-9990 fax: 508 480-8575 chicago microchip technology inc. 333 pierce road, suite 180 itasca, il 60143 tel: 708 285-0071 fax: 708 285-0075 dallas microchip technology inc. 14651 dallas parkway, suite 816 dallas, tx 75240-8809 tel: 214 991-7177 fax: 214 991-8588 dayton microchip technology inc. suite 150 two prestige place miamisburg, oh 45342 tel: 513 291-1654 fax: 513 291-9175 los angeles microchip technology inc. 18201 von karman, suite 1090 irvine, ca 92715 tel: 714 263-1888 fax: 714 263-1338 ds40141a-page 16 1996 microchip technology inc. w orldwide s ales & s ervice information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. no representation or warranty is given and no liability is assumed by microchip technology incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. use of microchips products as critical components in life support systems is not authorized except with express written approval by microchip. no licenses are conveyed, implicitly or otherwise, under any intellectual property rights. the microchip logo and name are registered trademarks of microchip technology inc. all rights reserved. all other trademarks mentioned herein are the property of their respective companies. all rights reserved. 1996, microchip technology incorporated, usa.

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