RTC-658X EPSON | Alldatasheet
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Technical content
REAL TIME CLOCK MODULE FOR PC/AT* RTC-658X/659X - - Fy iS C ©A built-in crystal resonator makes the product efficient and adjustment Y ii ‘ free. vs al Provides 114 bytes of backed-up RAM. vs " @ Extended alarm function (659X series). @ Low current consumption. a @Batteries (BR1225) are option for RTC-6581/6591 only. (Batteries are in i i 2 i “y packed separately from the RTC.) r vooser Man a ] X#PC/AT is a trademark of IBM corporation in USA. = Actual size WSpecifications(characteristics) External Dimension Absolute Maximum Rating @RTC-6581/6591 (Wait: mm) Vv | Input pin} Vas—0.3 t0 Vo +0.3 Q - 7 ft i eran | 6581/6591 | —40 to +85 [—— seo oie © 2) ae He tapers |" |Conponent|essa/6s0s | —55 to | WR “les 6587/6597 | +125 Seen - 320 a. ate | 260°C or less for 10 seconds Serr oe te ~ Soldering | 7 - should be 150°C or lesa oa ae . Saati 3 Twice under 260°C within 10 —s b |6583/6593 = vie. Fl |esar/eear| S200nds or under 290°C cot ew \\s2¢t0 80 “es ile jeer within 3 minutes. —— @RTC-6583/6593 MlOperating Range, Frequency and DC Characteristics te sma [Terminal [Pin No] [oe Ba] Smt | etn Ts | | wm] Mrernen Pe eweton | Vo | ava | 45 | 60 | nl et ieatity © TOOTOEEUTEEL et Stee ae [mescves | [sa| | a as xg ie ate Var Os Temperative:- =: Ta=-101070C +10 3 oe Tessube |_| $8 [pom obi — - [Teeminai [Pin No] si fre va | Mow 4 * - + = — votage| v_| Yoo= sv uly q Bt Eo Coc] Powet supply Output | : of | Ee Battery supply Vear=3V ee =]
@RTC Address Map @Extended Alarm Address Map (RTC-659X only) on 0 | Seconds | OOH =| 0. | Extended Seconds Alarm Bytes 1 Seconds Alarm | { 2 | Minutes | | 1 |Extended Minutes Al DH 3 | Minutes Alarm | nutes Alarm
14 OE H 4 = | Hours:
5 | Hours Alam | 2 | Extended Hours Alarm 8 | Day of the Week |, | Extended Day of the Week 7 | Day of Month 8 BYTES } Alarm 8 | Month |g | Extended Day of Month (TES 9 | Year | Alarm “se 10 | Register A 5 | Extended Month Alarm 11 | Register B _ 12. | Register C , 13. | Register D 6 | Register 6 4 . 127 7EH General purpose RAM O7H 7 | Register 7 . - Block Diagram Terminal Functions —— me + | es [ocr [essa [onus eser[osor] | ot — os (rE mrt - v0 oo OO INTR/SQW SELECTOR AD0to7 | Multiplexed b-<ecton tort Isto 10 owes 3 address/data buses 12,14 serene masters som Pw [owas |@ ele fel ew - EL Ee | soe oi aoe [= | amma == select (input) 100191 100% Real time clock 3 | —| as select (input) ro WTEBCE | oa Sr [ims mien epee ete a] | CS or RTC ee DS | Data strobe (input) 2 = ee —s conn esen [eaT|meime ew lelele|aja] || Pt é Interrupt request 23 ——— ea (output) ovat igen Extended alarm interupt request (output) Extended alarm 2 select (input) soo EE CEAEd Power supply (+5) | 24 | 24 | 24 | 28 | 28 | | NC | Not connected intemaly lotherslothers|Others|Other| [we fwoeaten [||| - [ae a |