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 Symbol External dimensions Condition Rating Supply voltage VDD VDD -GND - 0.3 to + 7.0 Input voltage VIN Input pin - 0.3 to VDD + 0.3 Unit ( Unit: mm ) 16.3 max. 24 Terminal AD 0 13 V — ˚C Soldering conditions 7.9 Twice under 260˚C within 10 seconds or under 230˚C within 3 minutes TSOL AD 6 AD 7 12 0.0 5min. 1 12.2 max. TSTG - 55 to +125 7 8 9 10 11 2.8 max. Storage temperature RTC6593 EPSON 5200B AD 1 AD 2 AD 3 AD 4 AD 5 Pin No 4 5 6 0.2 0° to 10° 1.0 Terminal functions Operating range, frequency and DC characteristics Item Symbol Condition Min. Typ. Max. Unit Supply voltage VDD VDD - GND 4.5 5.0 5.5 V Operating temperature TOPR — -10 +70 ˚C Frequency tolerance ∆f/fo Ta=25˚C, VDD=5V MOT 5±20 ppm Temperature characteristics Voltage characteristics Top +10 -120 Ta=-10 to 70˚C 25˚C standard Ta=stable ±6 fa Ta=25˚C, VDD=5V First year High level VIH Low level VIL High level VOH VDD=5V ILOAD=-4mA Low level VOL VDD=5V ILOAD=+4mA Power supply current IDD Output unloaded Battery supply current IBAT VBAT=3V VDD= 0V Input voltage Output voltage — ±5 2.2 VDD+0.3 -0.3 0.8 ppm/Y Multiplexed bi-direction address/data buses 1 4 to 11 Power supply (grand) 12 ___ Real time clock select (input) 13 Address strobe (input) 14 R/W Read/ Write (input) 15 DS Data strobe (input) 17 Reset (input) 18 IRQ Interrupt request (output) 19 VBAT Back-up power supply 20 Extended alarm interrupt request (output) 21 XALM Extended alarm select (input) 22 SQW Square wave output 23 VDD Power supply (+5V) 24 NC Not connected internally RTC _____ RESET ___ ____ XIRQ ____ 0.4 — Model select (input) Pin No. ppm/V V 2.4 Function GND _ — Aging AD0 to 7 AS — fv Terminal 3 10 mA 0.5 1.0 µA 2,3,16 http://www.spezial.cz - - - [email protected] - - - Hotlines: Tel (02) 2434 2200 - - - Fax (02) 2434 3200