57 real time clock module absolute max. rating specifications (characteristics) operating range frequency characteristics dc characteristics external dimensions (unit: mm) r4543 b 607 6a e 7.4 0.2 3.2 0.1 5.0 3.1 10.1 0.2 terminal connection 0.15 0.6 1.27 0.35 0.05 min. no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4543sa gnd n.c ce f sel wr f oe n.c n.c v dd clk data n.c n.c f out 4543sb n.c n.c n.c n.c f oe wr f sel ce gnd f out data clk n.c v dd n.c n.c n.c n.c 1234567 14 13 12 11 10 9 8 123456 18 17 16 15 14 13 7 12 8 11 9 10 0 to 10 RTC-4543SA RTC-4543SA (sop 14-pin) rtc-4543sb rtc-4543sb (sop 18-pin) 0.4 1.27 7.8 0.2 2.0 max. 5.4 1.8 11.4 0.2 0.15 0.6 0.05 min. 0 to 10 r4543 b 6076a e built-in crystal unit allows adjustment-free efficient operation. automatic leap year correction. output selectable between 32.768 khz/1 hz. operating voltage range: 2.5 v to 5.5 v. supply voltage detection voltage: 1.70.3 v. low current consumption: 1.0 a/2.0 v (max.) serial-interface real time clock module RTC-4543SA / sb item power source voltage input voltage output voltage storage temperature symbol v dd v in v out t stg condition v dd -gnd min. -0.3 -55 max. 7.0 v dd +0.3 +125 unit v c item operating voltage date holding voltage operating temperature symbol v dd v clk t opr condition min. 2.5 1.4 -40 max. 5.5 +85 unit v c item frequency tolerance frequency temperature characteristics frequency voltage characteristics oscillation start time aging symbol ? f/fo t op f v t osc fa condition ta=+25 c , v dd =5 v -10 to +70 c ta=+25 c, v dd =2.0 to 5.5 v ta=+ 25 c , v dd =2.5 v first year ta=+25 ? c, v dd =5 v range 523 +10/-120 2 3 5 unit x 10 -6 x 10 -6 /v s x 10 -6 /year item h input voltage l input voltage input off-leak current h output voltage l output voltage output leak current supply detection voltage output load conditions current consumption symbol v ih v il i off v oh1 v oh2 v ol1 v ol2 i ozh i ozl v dt c l n i dd1 i dd2 i dd3 i dd4 i dd5 i dd6 1 2 3 4 5 6 condition min. typ. max. unit v dd =5.0 v v dd =3.0 v v dd =5.0 v v dd =3.0 v v out =5.5 v v out =0 v i oh =-1.0 ma data, f out pins i ol =1.0 ma data, f out pins ce="l", f oe ="l" f sel ="h" ce="l", f oe ="h" f sel ="l" no load on the f out pin data, f out pins f out pin 30 pf(max.) 2ls-ttl 1.7 v dd =5.0 v v dd =3.0 v v dd =2.0 v v dd =5.0 v v dd =3.0 v v dd =2.0 v 1.5 1.0 0.5 4.0 2.5 1.5 3.0 2.0 1.0 10.0 6.5 4.0 wr, data, ce, clk, f oe ,f sel pins wr, ce, clk, f oe ,f sel pins 0.8v dd 4.5 2.5 -1.0 1.4 0.2v dd 0.5 0.5 0.8 1.0 2.0 v a a a v v (v dd =5 v0.5 v, ta=-40 to +85 ? c) actual size
58 real time clock module fdt msb seconds (0 to 59) s 40 s 20 s 10 s 8 s 4 s 2 s 1 ? minutes (0 to 59) mi 40 mi 20 mi 10 mi 8 mi 4 mi 2 mi 1 ? hour (0 to 23) ? h 20 h 10 h 8 h 4 h 2 h 1 day of the week (1 to 7) ? w 4 w 2 w 1 ? day (1 to 31) ? d 20 d 10 d 8 d 4 d 2 d 1 tm month (1 to 12) ? ? mo 10 mo 8 mo 4 mo 2 mo 1 y 80 year (0 to 99) y 40 y 20 y 10 y 8 y 4 y 2 y 1 fdt bit: supply voltage detection bit. tm bit: test bit always set this bit to "0". switching characteristics block diagram register table timing chart 32.768 khz f out clk wr ce f sel f oe data (ta=-40 to +85 c, c l =50 pf) output controller i/o controller control circuit voltage detecter divider oscillator clock and calendar shift register f oe f out f out data clk ce wr data clk ce wr v il v ih enabled high impedance disabled t xz t f 2 t sd t hd t data t clkh t clkh t ces t ces t clk t clk t wrs t wrs t r1 t ce t ce t f1 t r1 t f1 t ceh t oz t ceh t rcv t rcv t wrh t wrh t clkl t clkl t r2 t t h t zx duty= x 100 t t h [%] data read data write f out disabled and enabled item clk clock cycle clk high pulse width clk low pulse width ce setup time ce hold time ce enable time write data setup time write data hold time wr setup time wr hold time data output delay time data output floating time clock input rise time clock input fall time f out rise time f out fall time disable time enable time f out duty ratio wait time symbol t clk t clkh t clkl t ces t ceh t ce t sd t hd t wrs t wrh t data t dz t r1 t f1 t r2 t f2 t xz t zx duty t rcv min. 0.75 0.375 0.1 100 40 0.95 max. 7800 3900 0.9 0.2 0.1 50 100 60 min. 1.5 0.75 0.2 0.1 100 40 1.9 max. 7800 3900 0.9 0.4 0.2 100 200 60 unit s s s ns s ns % s c l = 30 pf v dd = 5 v 10 % v dd = 3 v 10 %
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