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| REAL TIME CLOCK MODULE FOR PC/AT 1 RTC-6593 * * * * * Builtin crystal unit allows adjustment-free efficient operation. Provides 114-bytes of backed-up RAM. Extended alarm function. Low current consumption. A builtin power supply switching circuit makes it possible to provide automatic power supply backup to both the RTC and extended RAM. Actual size *1 PC/AT is a trademark of International Business Machines Corporation. Specifications (characteristics) Absolute Max. rating Item Supply voltage Input voltage Storage temperature Symbol VDD VIN Condition VDD-GND Input pin Rating - 0.3 to + 7.0 V - 0.3 to VDD + 0.3 - 55 to +125 Unit External dimensions 16.3 max. 24 13 ( Unit: mm ) Terminal AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 Pin No 4 5 6 7 8 9 10 11 TSTG -- C 1 RTC6593 EPSON 5200B 12 0.0 5min. 2.8 max. 12.2 max. 7.9 Soldering conditions TSOL Twice under 260C within 10 seconds or under 230C within 3 minutes 0.2 0 to 10 1.0 Terminal functions Operating range, frequency and DC characteristics Item Supply voltage Operating temperature Frequency tolerance Temperature characteristics Voltage characteristics Aging Symbol VDD TOPR Condition VDD - GND -- Min. 4.5 -10 Typ. 5.0 Max. 5.5 +70 Unit MOT V C AD0 to 7 GND f/fo Multiplexed bi-direction address/data buses Power supply (grand) Real time clock select (input) Address strobe (input) Read/ Write (input) Data strobe (input) Reset (input) Interrupt request (output) Back-up power supply Extended alarm interrupt request (output) Extended alarm select (input) Square wave output Power supply (+5V) Not connected internally 4 to 11 12 13 14 15 17 18 19 20 21 Model select (input) 1 Terminal Function Pin No. Ta=25C, VDD=5V Ta=-10 to 70C 25C standard -- 520 ppm +10 -120 ___ RTC AS Top _ R/W 6 -- fv Ta=stable Ta=25C, VDD=5V First year -- 2.2 -0.3 VDD=5V ILOAD=-4mA VDD=5V ILOAD=+4mA Output unloaded VBAT=3V VDD= 0V -- 3 2.4 ppm/V DS fa High level Low level High level Low level VIH VIL VOH 5 ppm/Y _____ RESET Input voltage VDD+0.3 0.8 ___ IRQ VBAT V ____ XIRQ Output voltage VOL 0.4 ____ XALM 22 23 24 2,3,16 Power supply current Battery supply current IDD 10 mA SQW VDD IBAT 0.5 1.0 A NC http://www.spezial.cz - - - spezial@spezial.cz - - - Hotlines: Tel (02) 2434 2200 - - - Fax (02) 2434 3200 |
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