a ctual size http://www.epsontoyocom.co.jp real time clock module 121 block dia g ram ? external dimensions/terminal connection ? ( unit:mm ) ? s p ecifications ( characteristics ) *refer to a pp lication manual for details. absolute max. rating gnd=0 v dc characteristics ( gnd=0 v,v dd =1.6 v to 5.5 v,t a =-40 c to +85 c) item symbol condition min. max. unit item symbol condition min. typ. max. unit supply voltage v dd v dd to gnd -0.3 +7.0 input voltage v in input terminal, d 0 to d 3 pins v dd +0.3 i dd1 v dd =5 v - 1.0 2.0 output voltage(1) v out1 /irq pin +8.0 output voltage(2) v out2 f out ,d 0 -d 3 ,v temp pin gnd-0.3 v dd +0.3 v current consumption (when non-accessed) f out =output off v temp =output off i dd2 /cs 0 ,/rd,/wr=v dd a 0 -a 3 ,cs 1 =gnd d 0 -d 3 ,/irq=hi-z f out =hi-z(off) v temp =hi-z(off) v dd =3 v - 0.6 1.0 a storage temperature t stg stored as bare product after unpacking -55 +125 c note)there is no v temp pin on the RTC-7301DG so standards for the v temp pin within the conditions described above do not apply. operating range gnd = 0 v temperature sensor characteristics gnd=0 v,t a =-40 c to +85 c item symbol condition min. max. unit item symbol condition min. typ. max. unit power voltage v dd - 2.4 clock voltage v clk - 1.6 5.5 v temperature output voltage v temp t a =+25 c,gnd based output voltage v temp pins,v dd =2.7 v to 5.5 v 1.470 v operating temperature t opr no condensation -40 +85 c output precision t acr t a =+25 c,v dd =2.7 v to 5.5 v 5.0 c frequency characteristics temperature sensitivity v se -40 c t a +85 c,v dd =2.7 v to 5.5 v -7.3 -7.8 -8.3 mv/ c item symbol condition range unit linearity ? nl -40 c t a +85 c,v dd =2.7 v to 5.5 v 2.0 % frequency precision ? f /f t a =+25 c,v dd =3.0 v b:5 23 ( * 1) 10 -6 temperature detection range t sop ? nl 2.0 %,v dd =2.7 v to 5.5 v -40 +85 c oscillation start up time t sta t a =+25 c,v dd =2.4 v 3.0 max. s output resistance r 0 t a =25 c,v temp pins,v dd =2.7 v to 5.5 v gnd standard and v dd standard 1.0 3.0 k ? frequency temperature characteristics t op t a =-10 c to +70 c v dd =3.0 v ,+25 c +10 / -120 10 -6 c l v dd =2.7 v to 5.5 v 100 pf frequency voltage characteristics f/v t a =+25 c, v dd =1.6 v to 5.5 v 2.0 max. 10 -6 /v load condition r l v dd =2.7 v to 5.5 v 500 k ? aging fa t a =+25 c, v dd =3.0 v first year 5.0 max. 10 -6 /year ( * 1) please ask tighter tolerance response time t rsp v dd =3.3 v c l =50 pf, r l =500 k ? , max. 1 c 200 s note)there is no temperature sensor function on the RTC-7301DG. rtc-7301sf RTC-7301DG fout controlle r fout fcon interrupts controller bus interface circuit timer register alarm register temperature sensor clock and calendar osc 32.768 khz divider control register and system controller / irq control line vtemp digital trimming register a 0 ? a3 / rd d0 ? d3 / w r / cs0 cs1 ? 1 ? 2 7301sf 7301dg ? 1 this is a block diagram for rtc-7301sf. be aware that RTC-7301DG differs according to the following 2 points. ? 1) the vtemp output is not connected to an external pin. ? 2) the fcon input pin is not connected to an external pin, but is fixed at "h" internally. rtc-7301sf (ssop 24-pin) metal may be exposed on the top or bottom of this product. this will not affect any quality, reliability or electrical spec. 0.5 0.15 0 - 10 0.8 2.0 max. 0.36 0 min. #12 #1 10.2 0.3 #24 #13 5.4 7.8 0.3 r7301 e 123 4a RTC-7301DG (dip 18-pin) 7.62 0 -15 0.25 0.46 4.2 max. 2.54 min. 0.2 min. 2.54 1.52 23.1 max. 6.3 #1 #18 #10 #9 rtc7301 e 123 4a no. pin terminal no. pin terminal 1 /cs0 24 v dd 2 f con 23 (v dd ) 3 f out 22 (v dd ) 4 v temp 21 (v dd ) 5 (v dd ) 20 (v dd ) 6 /irq 19 (v dd ) 7 a 0 18 cs 1 8 a 1 17 d 0 9 a 2 16 d 1 10 a 3 15 d 2 11 /rd 14 d 3 12 gnd 13 /wr no. pin terminal no. pin terminal 1 /cs0 18 v dd 2 f out 17 (v dd ) 3 /irq 16 (v dd ) 4 a 0 15 cs 1 5 a 1 14 d 0 6 a 2 13 d 1 7 a 3 12 d 2 8 /rd 11 d 3 9 gnd 10 /wr 4-bit real time clock module rtc - 7301sf / dg ? built-in crystal oscillator 32. 768 khz with frequency adjusted ? frequency selectable clock output (32.768 khz to 1/30 hz) ? built-in 30 second adjustment function, digital pace adjustment function (max. adjustment: 192 10 -6 ) ? built-in alarm and timer interrupt functions. ? built-in semiconductor te mperature sensor (voltage output: -7.8 mv / c, rtc-7301sf) ? operating voltage range:2.4 v to 5.5 v, time keeping voltage range: 1.6 v to 5.5 v ? low current consumption (0.6 a / 3 v typ.) ? high speed parallel interface compatible with sram ? lead(pb)-free : contains high melting temperature type solder (pb85 %) exempted by rohs directive.
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