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W541C20X data sheet 4-bit microcontroller publication release date: may 29, 2003 - 1 - revision a4 table of contents- 1. general description ..........................................................................................................................2 2. features ............................................................................................................................... .....................2 3. block diagram ............................................................................................................................... .........4 4. pin configurations .............................................................................................................................5 5. pin description ............................................................................................................................... .......6 6. electrical characteristics ..........................................................................................................7 6.1 absolute maximum ratings .............................................................................................................7 6.2 dc characteristics ............................................................................................................................7 6.3 ac characteristics ............................................................................................................................8 7. application circuit ..............................................................................................................................9 8. package dimensions ..........................................................................................................................10 8.1 18-lead pdip-300mil .....................................................................................................................10 8.2 20-lead pdip ............................................................................................................................... ...11 8.3 28-lead p-dip skinny ....................................................................................................................12 8.4 20-lead sop-300mil ......................................................................................................................13 8.5 28-lead sop-300mil ......................................................................................................................14 9. revision history ............................................................................................................................... ..15
W541C20X - 2 - 1. general description the W541C20X is fully compatible with w741c20x in the terms of pin assignment and ic functon. it is a high-performance 4-bit microcontroller ( 2. features ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
W541C20X publication release date: may 29, 2003 - 3 - revision a4 x two built-in 8-bit programmable countdown timers timer 0: one of two internal clock frequencies (f osc /4 or f osc /1024) can be selected timer 1: offers auto-reload function, and one of two internal clock frequencies (f osc or f osc /64) can be selected, or falling edge of pin rc.0 can be selected (output through mfp pin) x built-in 18/14-bit watchdog timer selectable for system reset x powerful instruction set: 118 instructions x 8-level subroutine (include interrupt) nesting x one serial transmission/receiver port specified by software x up to 1 p s instruction cycle (with 4 mhz operating frequency) x packaged in 18-pin, 20-pin, 28-pin pdip and 20-pin, 28-pin sop
W541C20X - 4 - 3. block diagram xin xout pc stack (8 levels) ram (128*4) alu timer 0 (8-bit) timing generator port ra port rb modulation frequency pulse ra0 to 3 rb0 to 3 re0 to 3 mfp vdd vss rom (2048*16) (look_up table 2k*4) timer 1 (8-bit) acc res int divider 0 (14-bit) watchdog timer (4-bit) hcf pef hef ief central control unit evf sef psr0 .. mux sel +1(+2) . port rc rc0 to 3 port rd rd0 to 3 pr pm0 mr0 psr1 psr2 port rt serial i/o mux (re0/dout, re1/clko, re2/din, re3/clki) sel
W541C20X publ i c at i on rel e ase dat e : may 29, 2003 - 5 - revi si on a4 4. pin configurations 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 rb3 rb2 rb1 ra1 ra0 xin xout rc3 rc2 rc1 res int ra3 ra2 rb0 rc0 20 21 22 23 24 25 26 27 28 1 2 3 4 5 6 7 8 9 re3 re2 re1 ra1 ra0 xin xout rd3 rd2 rd1 res int ra3 ra2 re0 rd0 19 10 rb0 rc3 16 17 18 11 12 13 rb3 rb2 rb1 rc2 rc1 rc0 15 14 nc mfp w541c201 w541c202/c205 18-pdip(300 mil) 28 skinny(300 mil), 28 sop v ss v dd v ss v dd 10 11 12 13 15 16 17 18 1 2 3 4 5 6 7 8 9 rb3 rb2 rb1 ra1 ra0 xin xout rc3 rc2 rc1 ra3 ra2 rb0 rc0 w541c203 20-pdip(300 mil) 14 19 20 10 11 12 13 15 16 17 18 1 2 3 4 5 6 7 8 9 rb3 rb2 rb1 ra1 ra0 xin xout rc3 rc2 rc1 res int ra3 ra2 rb0 rc0 w541c204 20 sop 14 19 20 int res v ss v ss v dd v dd v ss v ss v dd v dd
W541C20X - 6 - 5. pin description s y m b o l i / o f u n c t i o n x i n i input pin for oscillator. connected to crystal or resistor to generate system clo ck by code option. external 10~20pf capacitor uses to get accurate freq in crystal mode. x o u t o output pin for oscillator. connected to crystal or resistor to generate system clo ck by code option. 20pf capacitor is built in internal for crystal mode. ra0 ? ? ? ?
W541C20X publication release date: may 29, 2003 - 7 - revision a4 6. electrical characteristics 6.1 absolute maximum ratings parameter rating unit supply voltage to ground potential -0.3 to +7.0 v applied input/output voltage -0.3 to +7.0 v power dissipation 120 mw ambient operating temperature 0 to +70 q c storage temperature -55 to +150 q c note: exposure to conditions beyond those listed under absolute maximum ratings may adversely affect the life and reliability of the device. 6.2 dc characteristics (v dd -v ss = 3.0v, fosc. = 32.768 khz, ta = 25 q c; unless otherwise specified) parameter sym. conditions min. typ. max. unit op. voltage v dd - 2.4 - 5.5 v op. current (crystal type) i op1 no load (ext-v) - 8 20 p a op. current (rc type) i op2 no load (ext-v) - 35 65 p a hold current (crystal type) i hm1 hold mode no load (ext-v) - 4 6 p a hold current (rc type) i hm2 hold mode no load (ext-v) - 16 40 p a stop current (crystal type) i sm1 stop mode no load (ext-v) - 0.1 2 p a stop current (rc type) i sm2 stop mode no load (ext-v) - 0.1 2 p a input low voltage v il - v ss - 0.3 v dd v input high voltage v ih - 0.7 v dd - v dd v mfp output low voltage v ml i ol = 2.7 ma - - 0.4 v mfp output high voltage v mh i oh = -3.5 ma 2.4 - - v port ra, rb sink current i abl v ol = 0.9v 7.5 - - ma port ra, rb source current i abh v oh = 2.4v 0.4 1.2 - ma port rc, rd output low voltage v cdl i ol = 2.0 ma - - 0.4 v port rc, rd output high voltage v cdh i oh = -2.0 ma 2.4 - - v
W541C20X - 8 - 6.2 dc characteristics, continued parameter sym. conditions min. typ. max. unit port re sink current i el v ol = 0.9v 7.5 - - ma port re source current i eh v oh = 2.4v 0.4 1.2 - ma int pull-up resistor r int - 5 0 2 5 0 1 0 0 0 k ? din pin pull-up resistor r din re.2 used as serial input pin 5 0 2 5 0 1 0 0 0 k ? res pull-up resistor r res - 2 0 1 0 0 5 0 0 k ? (v dd -v ss = 3.0 v, ta = 25 c; unless otherwise specified) p a r a m e t e r s y m . c o n d i t i o n s m i n . t y p . max. unit rc type - - 4000 op. frequency f os c crystal type 1 (option low speed type) - 3 2 . 7 6 8 - k h z crystal type 2 (option high speed type) 400 - 3580 frequency deviation by voltage drop for rc oscillator ? f f f(3v) - f(2.4v) f(3v) - - 1 0 % i n st ruct ion cy cle time t i one machine cycle - 4/f os c - m s serial port data ready time t dr - 2 0 0 - - n s serial port data hold time t dh - 2 0 0 - - n s res e t ac tive width t raw f os c = 32.768 khz 1 - - s interrupt ac tive width t iaw f os c = 32.768 khz 1 - - s
W541C20X publ i c at i on rel e ase dat e : may 29, 2003 - 9 - revi si on a4 7. application circuit mfp int res xout xin rc2 rc3 ra0 ra3 output signal rb0 rb1 rb2 rb3 rc0 rc1 rd0 rd1 rd2 rd3 re0 re1 re2 re3 or vcc vcc vcc v dd v ss vcc vcc *1(option) note : *1 is for accuracy
W541C20X - 10 - 8. package dimensions 8.1 18-lead pdip-300mil 1.63 1.47 0.064 0.058 symbol min. nom max. max. nom min. dimension in inches dimension in mm a b c d e a l s a a 1 2 e 0.060 1.52 0.175 4.45 0.010 0.125 0.016 0.130 0.018 0.135 0.022 3.18 0.41 0.25 3.30 0.46 3.43 0.56 0.008 0.120 0.375 0.010 0.130 0.014 0.140 0.20 3.05 0.25 3.30 0.36 3.56 0.255 0.250 0.245 6.48 6.35 6.22 9.53 7.62 7.37 7.87 0.300 0.290 0.310 2.29 2.54 2.79 0.090 0.100 0.110 b 1 1 e e 1 0.900 0.910 22.86 23.11 01 5 0.055 1.40 0.355 0.335 8.51 9.02 15 0 seating plane a e 2 a c e base plane 1 a 1 e l a s 1 e d 1 b b 18 10 1 9
W541C20X publ i c at i on rel e ase dat e : may 29, 2003 - 11 - revi si on a4 8.2 20-lead pdip 1.63 1.47 0.064 0.058 symbol min. nom max. max. nom min. dimension in inches dimension in mm a b c d e a l s a a 1 2 e 0.060 1.52 0.175 4.45 0.010 0.125 0.016 0.130 0.018 0.135 0.022 3.18 0.41 0.25 3.30 0.46 3.43 0.56 0.008 0.120 0.375 0.010 0.130 0.014 0.140 0.20 3.05 0.25 3.30 0.36 3.56 0.255 0.250 0.245 6.48 6.35 6.22 9.53 7.62 7.37 7.87 0.300 0.290 0.310 2.29 2.54 2.79 0.090 0.100 0.110 b 1 1 e e 1 1.026 1.040 20.06 26.42 01 5 0.075 1.91 0.355 0.335 8.51 9.02 15 0 seating plane a e 2 a c e base plane 1 a 1 e l a s 1 e d 1 b b 20 11 0 11
W541C20X - 12 - 8.3 28-lead p-dip skinny 1.63 1.47 0.064 0.058 symbol min. nom max. max. nom min. dimension in inches dimension in mm a b c d e a l s a a 1 2 e 0.060 1.52 0.175 4.45 0.010 0.125 0.016 0.130 0.018 0.135 0.022 3.18 0.41 0.25 3.30 0.46 3.43 0.56 0.008 0.120 0.370 0.010 0.130 0.014 0.140 0.20 3.05 0.25 3.30 0.36 3.56 0.293 0.288 0.283 7.44 7.32 7.19 9.40 7.87 7.62 8.13 0.310 0.300 0.320 2.29 2.54 2.79 0.090 0.100 0.110 b 1 1 e e 1 a 1.388 1.400 35.26 35.56 0 15 0.055 1.40 0.350 0.330 8.38 8.89 15 0 e a a c e 1 e d 28 15 1 14 a base plane mounting plane 1 a 1 e l a s 1 b b 2
W541C20X publ i c at i on rel e ase dat e : may 29, 2003 - 13 - revi si on a4 8.4 20-lead sop-300mil l o c e h a1 a e b d seating plane y 0.25 gauge plane e 1 20 11 10 7.60 0.32 0.51 0.30 e c b a1 7.40 0.23 0.33 0.10 0.299 0.013 0.020 0.012 0.291 0.009 0.013 0.004 max. dimension in mm 2.65 a symbol min. 2.35 dimension in inches 0.104 min. 0.093 max. control demensions are in milmeters . 1.27 0.10 10.65 l q y h 08 0.40 10.00 e 1.27 bsc 0.050 0.004 0.419 0 0.016 0.394 8 0.050 bsc e d 12.60 13.00 0.496 0.512
W541C20X - 14 - 8.5 28-lead sop-300mil l o c e h a1 a e b d seating plane y 0.25 gauge plane e 1 28 15 14 7.60 0.32 0.51 0.30 e c b a1 7.40 0.23 0.33 0.10 0.299 0.013 0.020 0.012 0.291 0.009 0.013 0.004 max. dimension in mm 2.65 a symbol min. 2.35 dimension in inches 0.104 min. 0.093 max. control demensions are in milmeters . 1.27 0.10 10.65 l q y h 08 0.40 10.00 e 1.27 bsc 0.050 0.004 0.419 0 0.016 0.394 8 0.050 bsc e d 17.70 18.10 0.697 0.713
W541C20X publ i c at i on rel e ase dat e : may 29, 2003 - 15 - revi si on a4 9. revision history v e r s i o n d a t e d e s c r i p t i o n a2 - note: update hi freq range from 4.19 3.58mhz (c200) a3 - note: rc is built-in schmitt trigger a4 may 29, 2003 note: do not be floating when it is as input or output open-drain (nmos type) headquarters no. 4, creation rd. iii, science-based industrial park, hsinchu, taiwan tel: 886-3-5770066 fax: 886-3-5665577 http://www.winbond.com.tw/ taipei office tel: 886-2-8177-7168 fax: 886-2-8751-3579 winbond electronics corporation america 2727 north first street, san jose, ca 95134, u.s.a. tel: 1-408-9436666 fax: 1-408-5441798 winbond electronics (h.k.) ltd. no. 378 kwun tong rd., kowloon, hong kong fax: 852-27552064 unit 9-15, 22f, millennium city, tel: 852-27513100 please note that all data and specifications are subject to change without notice. all the trade marks of products and companies mentioned in this data sheet belong to their respective owners. winbond electronics (shanghai) ltd. 200336 china fax: 86-21-62365998 27f, 2299 yan an w. rd. shanghai, tel: 86-21-62365999 winbond electronics corporation japan shinyokohama kohoku-ku, yokohama, 222-0033 fax: 81-45-4781800 7f daini-ueno bldg, 3-7-18 tel: 81-45-4781881 9f, no.480, rueiguang rd., neihu district, taipei, 114, taiwan, r.o.c.

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