61 real time clock module absolute max. rating specifications (characteristics) operating range frequency characteristics dc characteristics external dimensions (unit: mm) terminal connection no. 1 2 3 4 5 6 7 no. 9 8 n.c n.c n.c n.c ce1 data clk gnd n.c n.c 18 n.c n.c n.c v dd f out ce0 tirq airq 17 16 15 14 13 12 10 11 12345 6 7 8 9 18 17 16 15 14 13 12 11 10 pin terminal pin terminal (v dd =1.6 to 5.5 v,ta=-40 to +85 c) 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 r4573 b 9356b e serial interface rtc with an alarm timer rtc- 4573sb item supply voltage input voltage output voltage storage temperature soldering conditions symbol v dd v in v out1 v out2 t stg t sol condition v dd -gnd input pin tirq ____ ,airq ____ f out, data stored without tape & reel min. -0.3 -55 max. +7.0 v dd +0.3 v +8.0 v dd +0.3 v +125 unit v c twice at under +260 c within 10 s or under +230 c within 3 min. item operating voltage operating temperature symbol v dd t opr condition min. 1.6 -40 max. 5.5 +85 unit v c item frequency tolerance frequency temperature characteristics frequency voltage characteristics oscillation start up time aging symbol ? f/fo t op fv t sta fa condition ta=+25 c, v dd =3 v ta=-10 c to +70 c, reference at +25 c ta=+25 c,v dd =1.6 to 5.5 v ta=+25 c,v dd =1.6 v ta=+25 c, v dd =3 v, first year range +10 -120 2 3 5 unit x 10 -6 x 10 -6 /v s x 10 -6 /year item input voltage input leakage current pulldown r1 pulldown r2 output voltage 1 output voltage 2 leakage current standby current 1 standby current 2 symbol v ih v il i lk r dwn1 r dwn2 v oh1 v oh2 v ol1 v ol2 v ol3 v ol4 i oz i dd1 i dd2 v dd =5 v v dd =3 v v dd =5 v v dd =3 v v dd =5 v v dd =3 v v dd =5 v v dd =3 v v dd =5 v v dd =3 v ce 0 , ce 1 =gnd condition ce 0 ,ce 1 clk,data pins v i =gnd or v dd data, clk pins ce 0 ,ce 1 pins i oh =- 1 ma data,f out pins i oh = 1 ma data,f out pins i ol = 1 ma airq ___ , tirq ___ pins min. 0.8v dd 0 -0.5 75 150 4.5 2.0 -0.5 typ. 150 300 1.0 0.5 max. v dd 0.2v dd 0.5 300 600 5.0 3.0 gnd+0.5 gnd+0.8 gnd+0.25 gnd+0.4 0.5 2.0 1.0 unit v a k ? v a built-in crystal unit allows adjustment-free efficient operation. 2.0 mm thickness featuring high-density mounting. using a serial interface, controllable only three signal lines. alarm interruption of sec. to month and day of week possible. interval timer interrupt function that can be set with an interval ranging from 1/4096 of a second to 255 minutes. automatic leap year correction. similar mounting method to that used for universal type smd ic. low current consumption. (0.5 a/3 v typ.) actual size v o =gnd or v dd , data , airq ___ , tirq ___ pins 523
62 real time clock module switching characteristics block diagram register table timing chart write mode read mode bus interface circuit output controller divider f out tirq airq data clk ce1 ce0 clock and calendar time register alarm register control register shift register interrupts controller osc 32.768 khz control line t cs t wl t wh t clk t ch t ckh t cr clk clk data ce clk data ce ce 50 % 50 % t cs t dh t ds 50 % 50 % 50 % 90 % 90 % 50 % 50 % 50 % 10 % 10 % t rf t rf t rd t rz address register symbol 0 1 2 3 4 5 6 7 8 9 a b c d e f sec min hour week day month year minutes alarm hours alarm week alarm day alarm f out control timer interrupt control count down timer control 1 control 2 bit 7 fos fr fr fr fr fr year80 ae ae ae ae fe te timer128 ? ? bit 6 s40 min40 ? w7 ? ? year40 a-min40 ? a-w7 ? ? ? timer64 ? test bit 5 s20 min20 hour20 w6 day20 ? year20 a-min20 a-hr20 a-w6 a-day20 fd 4 td 1 timer32 ? stop bit 4 s10 min10 hour10 w5 day10 month10 year10 a-min10 a-hr10 a-w5 a-day10 fd 3 td 0 timer16 ti/tp reset bit 3 s8 min8 hour8 w4 day8 month8 year8 a-min8 a-hr8 a-w4 a-day8 ? ? timer8 af hold bit 2 s4 min4 hour4 w3 day4 month4 year4 a-min4 a-hr4 a-w3 a-day4 fd 2 ? timer4 tf ? bit 1 s2 min2 hour2 w2 day2 month2 year2 a-min2 a-hr2 a-w2 a-day2 fd 1 ? timer2 aie ? bit 0 s1 min1 hour1 w1 day1 month1 year1 a-min1 a-hr1 a-w1 a-day1 fd 0 ? timer1 tie ? item clk clock cycle clk h pulse width clk l pulse width ce setup time ce hold time ce recovery time clk hold time write data setup time write data hold time read data delay time read data disable delay time rise and fall time fout duty ratio (32.768 khz output) symbol t clk t wh t wl t cs t ch t cr t ckh t ds t dh t rd t rz t rf duty min. 1200 600 300 400 600 100 0 35 max. 400 200 40 65 min. 600 300 150 200 300 50 0 40 max. 200 100 20 60 unit ns % (gnd=0 v,ta=-40 c to +85 c) v dd =3.0 v10 % v dd =5.0 v10 %
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