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RTC72423-A
SURFACE MOUNT REAL TIME CLOCK MODULE RTC72423 The RTC72423 module is the latest design of Real Time Clocks from Fox. It performs the same operations as the RTC72421 but with the additional benefit of being surface mountable. FEATURES • • • • Surface Mount version of RTC72421 Automatic Leap Year Setting Low Current Consumption Application notes available * Actual Size • ELECTRICAL CHARACTERISTICS PARAMETERS Frequency Tolerance RTC 72423A RTC 72423B Frequency Stability Temperature Range Operating Temperature Storage Temperature Supply Voltage Input Current Output Voltage Input and Output Voltage Data Hold Voltage Aging (1st yr) CONDITIONS Ta = 25°C; VDD = 5 V MIN +20 +50 +10 PPM -40 -55 +4.5 (TOPR) (TSTG) (VDD) (IDD) (VOL) (VOH) (VI/O) (VDH) UNITS -20 -50 -120 -10°C ~ +70°C MAX +85 +125 +5.5 10 0.4 °C V µA V VDD +0.3V 5.5 +5.0 V V PPM Ta = 25°C 2.4 GND -0.3V 2.0 -5.0 Ta = 25°C Ta = 25°C; VDD = 5 V PPM * Call Fox Customer Service for application notes. All specifications subject to change without notice. Rev. 10/1/96 Pin Connections RTC 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. STD. P CS0 NC ALE A0 NC A1 NC A2 A3 READ GND 24. 23. 22. 21. 20. 19. 18. 17. 16. 15. 14. 13. VDD (NC) (NC) NC CS1 D0 NC NC D1 D2 D3 WRITE Note: (NC) to be at same voltage level as Pin 24. All dimensions are in millimeters. 80 FOXElectronics 5570 Enterprise Parkway Fort Myers, Florida 33905 941-693-0099 © 2000 FOX ELECTRONICS FAX 941-693-1554 http://www.foxonline.com
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