65 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 8 9 10 11 12 13 14 15 16 17 18 19 20 pin terminal v dd f out ce airq tirq clk data foe vtemp soff gnd n.c n.c n.c n.c n.c n.c n.c n.c n.c temperature sensor characteristics gnd=0 v,ta=-40 c to +85 c r4701 9356b e 1.5 max. 5.4 1.3 (0.75) (0.75) 7.0 0.3 6.0 0.2 0.65 0.22 20 19 18 17 16 15 14 13 12 11 123456789 10 (v dd =1.6 to 5.5 v,ta=-40 to +85 c) serial rtc module with alarm and timer functions rtc- 4701je item power voltage clock voltage operating temperature symbol v dd v clk v 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 to +70 c, reference at +25 c ta=+25 c,v dd =1.6 to 5.5 v ta=+25 c,v dd =3.0 v ta=+25 c, v dd =3 v 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 oh3 v ol1 v ol2 v ol3 v ol4 v ol5 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,foe,soff=gnd airq,tirq=v dd 32.768khz output is off. sensor output is off. condition i oh =- 1 ma data,f out pins i ol = 1 ma airq, tirq pins i ol = 1 ma data,f out pins min. 0.8v dd gnd-0.3 -0.5 75 150 4.5 2.0 2.9 gnd -0.5 typ. 150 300 1.0 0.5 max. v dd +0.3 0.2v dd 0.5 300 600 5.0 3.0 gnd+0.5 gnd+0.8 gnd+0.1 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. serial interface which can be controlled by three signal lines. alarm interrupt function for day of week, day, hour, and minute. regular cycle interrupt function which can be set up between 1/4096 second and 255 minutes . ovf interrupt function based on 12-bit additional counter. ability to detect stopping of oscillation and time update. automatic adjustment for leap year. built-in temperature sensor.(voltage output :-7.6 mv/ c typ.) wide range of interface voltage between 1.6 and 5.5 v. wide range of clock voltage between 1.6 and 5.5 v. low power consumption at 0.5 a/3 v. (typ.) actual size v o =gnd or v dd , fout,data , airq, tirq pins item supply voltage input voltage output voltage storage temperature symbol v dd v in v out1 v out2 t stg condition input pin tirq ____ ,airq ____ f out, data min. -0.3 gnd-0.3 -55 max. +7.0 v dd +0.3 v +8.0 v dd +0.3 v +125 unit v c ? equivalent to 1 minute of monthly deviation ce pins v in =v dd i ol = 100 a data,f out pins i oh =- 100 a data,f out pins 523 ce,clk,data, foe,soff clk,data,foe,soff v in =v dd or gnd temperature output voltage output precision temperature sensitivity linearity output resistance parameter symbol vtemp t acr v se ? nl ro condition min. -7.1 typ. 1.48 -7.6 1.0 max. 5.0 -8.1 2.0 3.0 unit v c mv/ c % k ? ta=+25 c, gnd based output voltage vtemp pin, v dd =2.7 to 5.5 v ta=+25 c, vtemp pin, v dd =2.7 to 5.5 v gnd standard and v dd standard -40 c ta +85 c, vdd=2.7 to 5.5 v -40 c ta +85 c,vdd=2.7 to 5.5 v ta=+25 c, v dd =2.7 to 5.5 v
66 real time clock module v temp soff switching characteristics bank1 bank0 block diagram register table timing chart bus interface circuit fout controller divider temperature sensor f out tirq airq data clk f oe ce clock and calendar timer register alarm register control register and system controller degital trimming register interrupts controller osc 32.768 khz control line t ch t rf t rf t wl t clk t ds t dh d0 d1 d6 d7 d0 d6 d7 d0 d1 d6 d7 d0 d6 d7 t wz t rz t rd t wh t cs t cr ce clk data data read data data write 50 % 10 % 90 % 90 % (write data) (read data) from here the data pin turns into the output mode. (setup code, setup address) (setup code, setup address) 10 % t do 0 : always set this bit to 0 . address register symbol 0 1 2 3 4 5 6 7 8 9 a b c d e f second minute hour day of week day month year minutes alarm hours alarm day of week alarm day alarm timer setup timer couner control 1 control 2 bit 7 fos fr fr fr fr fr year 80 ae ae ae ae te 128 0 0 bit 6 s 40 min 40 0 w 6 0 c year 40 a-min 40 ? a-w 6 ? ? 64 0 test bit 5 s 20 min 20 hour 20 w 5 day 20 0 year 20 a-min 20 a-hr 20 a-w 5 a-day 20 td 1 32 0 stop bit 4 s 10 min 10 hour 10 w 4 day 10 month 10 year 10 a-min 10 a-hr 10 a-w 4 a-day 10 td 0 16 ti/tp reset bit 3 s 8 min 8 hour 8 w 3 day 8 month 8 year 8 a-min 8 a-hr 8 a-w 3 a-day 8 ? 8 af hold bit 2 s 4 min4 hour4 w 2 day 4 month 4 year 4 a-min 4 a-hr 4 a-w 2 a-day 4 ? 4 tf 0 bit 1 s 2 min 2 hour 2 w 1 day 2 month 2 year 2 a-min 2 a-hr 2 a-w 1 a-day 2 ? 2 aie 0 bit 0 s 1 min 1 hour 1 w 0 day 1 month 1 year 1 a-min 1 a-hr 1 a-w 0 a-day 1 ? 1 tie 0 address register symbol b c d e f additional counter 1 additional counter 2 control 3 bit 7 128 fr foes bit 6 64 ac1 test bit 5 32 ac0 bit 4 16 ovf bit 3 8 2048 bit 2 4 1024 acie bit 1 2 512 ace bit 0 1 256 son item clk clock cycle clk h pulse width clk l pulse width ce setup time ce hold time ce recovery time write data setup time write data hold time write data disable delay time output mode switching time read data delay time output disable time rise and fall time fout duty ratio (32.768khz output) oscillation stop defection time symbol t clk t wh t wl t cs t ch t cr t ds t dh t wz t do t rd t rz t rf duty t osc control c l =50 pf c l =50 pf r l =10 k ? min. 600 300 400 75 0 40 10 max. 300 200 100 60 min. 350 175 300 50 0 40 10 max. 120 100 50 60 unit ns % ms (gnd=0v,ta=-40 ? c to +85 ? c) v dd =3.010% v dd =5.010%
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