79 real time clock module specifications (characteristics) absolute max. rating operating range frequency characteristics and current consumption characteristics external dimensions terminal connection (unit: mm) rtc-63421/63421m 1 18 2 17 3 16 4 15 5 14 6 13 7 12 8 11 9 10 rtc63421 a epson 6051a rtc63423 a epson 6100 (v dd ) is to be same level as v dd. do not connect it to any external terminals. nc is not connected internally. 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 RTC-63423 rtc-63421/63421m RTC-63423 ? 1=63421m ? 2=motorola bus system 23.1 max. 3.3 min. 0.2 min. 6.3 2.54 0.65 max. 4.2 max. 2.8 max. 0.05 min. 7.62 0.25 2.5 16.3 max. 7.9 12.2 max. 0 . 2 1.0 0.3 unless otherwise stated, characteristics (specifications) shown in the above table are based on the rated operating temperature and voltage condition. no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 interrupt cs 0 ale a 0 a 1 a 2 a 3 rd ( e ? 1 ) gnd wr ( r/w ? 1 ) d 3 d 2 d 1 d 0 cs 1 ( v dd ) ( v dd ) v dd interrupt cs 0 alarm ale a 0 30sec.adj a 1 68/80 a 2 a 3 rd ( e ? 2 ) gnd wr ( r/w ? 2 ) d 3 d 2 d 1 1h z d 0 cs 1 stop/ start nc ( v dd ) ( v dd ) v dd 63421/63421m 90 to 105 0 to 10 63423 1.27 0.35 4-bit multifunctional real time clock module rtc-63421 / 63421m / 63423 built-in crystal unit allows adjustment-free efficient operation. alarm interruption of sec. to month and day of week possible. standard signal output selectable in a range of 10 min to 1024 hz. either sec. to hour and day of week or sec. to year and day of week is selectable. reference area of time /alarm register is setable. provided with ram bits. (marked on ? which is shown resister table) provided with start/stop 30 second adjusting function. similar mounting method (RTC-63423) to the used for normal type smd ic. item power source voltage input voltage storage temperature soldering condition symbol v dd v in t stg t sol condition ta=+25 c ta=+25 c rtc-63421 rtc-63421m RTC-63423 rtc-63421 rtc-63421m RTC-63423 specifications -0.3 to 7.0 -0.3 to v dd +0.3 -55 to +85 -55 to +125 under +260 c within 10 s (lead part) (package should be less than +150 c) twice at under +260 c within 10 s or under +230 c within 3 min. unit v c item operating voltage operating temperature data holding voltage cs data holding time operation restoring time symbol v dd t opr v dh t cdr t r condition ------- refer to the data holding timing specifications 4.5 to 5.5 -40 to +85 2.0 to 5.5 2.0 min. unit v c v s item frequency tolerance frequency temperature characteristics aging shock resistance current consumption symbol ? f/fo fa s.r. i dd 1 i dd 2 ta=+25 c v dd = 5 v 63421a/63421ma 63421b/63421mb 63423 a 63423 condition three drops on a hard board from 750 mm or 294000 m/s 2 x 0.3 ms x 1/2 sine wave x 3 directions cs 1 =0 v v dd =5 v v dd =2 v specifications +15/-5 (510) +55/-45 (550) +25/-15 (520) +55/-45 (550) +10/-120 +10/-220 5 max. 10 max. 30 max. 1.8 max. unit x 10 -6 x 10 -6 /year x 10 -6 a -10 to +70 c (+25 c reference temperature) -30 to +85 c (+25 c reference temperature) v dd =5 v, ta=+25 c, first year model rtc-63421 rtc-63421m RTC-63423 applicable cpu intel bus system motorola bus system motel bus system actual size
80 real time clock module r/w e a 0 to a 3 d 0 to d 3 cs 1 cs 0 or wr not occurred cs 1 1/5v dd v dd 4 v 4 v v il 2 v ih 2 v il 2 v il 2 t cdr t r 2 to 4 v data holding mode interface possible with external terminals interface possible with the external terminals read mode write mode data holding timing switching characteristics register table t ec t elw t erw t ehw t rwe t ds t dh v il1 v il1 v il1 v il1 v il1 v il1 v il1 v il v ih1 v ih1 v ih1 v ih1 v ih v ih1 v il1 r/w e a 0 to a 3 d 0 to d 3 t ec t elw t erw t ehw t rwe t rd t ed v ol1 v il1 v il1 v ih1 v ih1 v il1 v il1 v il v oh1 v ol1 v oh1 v ih1 v ih1 v ih1 v ih1 ( v dd = 5 v 0.5 v, ta = 0 to + 70 c ) motorola bus system switching characteristics on the intel bus system are the same as those for the rtc- 6242 series. 0 1 2 3 4 5 6 7 8 9 a b c d e f symbol of register r-s 1 r-s 10 r-mi 1 r-mi 10 r-h 1 r-h 10 r-d 1 r-d 10 r-mo 1 r-mo 10 r-y 1 r-y 10 r-w c d c e c f d 3 r-s 8 ? r-mi 8 ? r-h 8 ? r-d 8 r-mo 8 r-y 8 r-y 80 ? it/pls 2 irq ? flag 0 bank 1 bank 0 d 2 r-s 4 r-s 40 r-mi 4 r-mi 40 r-h 4 ___ r- pm/am r-d 4 r-mo 4 ? r-y 4 r-y 40 r-w 4 it/pls 1 reset stop d 1 r-s 2 r-s 20 r-mi 2 r-mi 20 r-h 2 r-h 20 r-d 2 r-d 20 r-mo 2 r-y 2 r-y 20 r-w 2 mask 2 irq ? flag 2 30 sec. adj d 0 r-s 1 r-s 10 r-mi 1 r-mi 10 r-h 1 r-h 10 r-d 1 r-d 10 r-mo 1 r-mo 10 r-y 1 r-y 10 r-w 1 mask 1 irq ? flag 1 read flag real time register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register 10 - hour digit register 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register 1 - year digit register 10 - year digit register week register control register d control register e control register f item __ r/w, address setup time e h pulse width __ r/w, address hold time e l pulse width e cycle time data setup time data hold time e to data (cl=150 pf) data hold symbol t rwe t ehw t erw t elw t ec t ds t dh t rd t ed min. 100 220 20 220 500 180 20 10 max. 120 unit ns address bank 0 symbol of register a-s 1 a-s 10 a-mi 1 a-mi 10 a-h 1 a-h 10 a-d 1 a-d 10 a-mo 1 a-mo 10 a-w a-emb c c c d c e c f d 3 a-s 8 ? a-mi 8 ? a-h 8 ? a-d 8 a-mo 8 ? ae 8 ? hd/sft d 2 a-s 4 a-s 40 a-mi 4 a-mi 40 a-h 4 ___ a- pm/am a-d 4 a-mo 4 ? r-w 4 ae 4 cy 2 24/12 d 1 a-s 2 a-s 20 a-mi 2 a-mi 20 a-h 2 a-h 20 a-d 2 a-d 20 a-mo 2 a-w 2 ae 2 test 2 cy 1 cal d 0 a-s 1 a-s 10 a-mi 1 a-mi 10 a-h 1 a-h 10 a-d 1 a-d 10 a-mo 1 a-mo 10 a-w 1 ae 1 test 1 cy 0 d ? p alarm register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register 10 - hour digit register 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register week register area define register test register control register d control register e control register f bank 1 same as bank 0 ? ? ?
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