DS1244Y

032697 11/12

NOTES:

1. WE is high for a read cycle.

earlier of CE or WE going high.

5. These parameters are sampled with a 50 pF load and are not 100% tested.

6. If the CE low transition occurs simultaneously with or later than the WE low transition in Write Cycle 1, the output

buffers remain in a high impedance state during this period.

7. If the CE high transition occurs prior to or simultaneously with the WE high transition, the output buffers remain

in a high impedance state during this period.

8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition, the output buffers

remain in a high impedance state during this period.

12. RST (Pin1) has an internal pull–up resistor.

13. Real–Time Clock Modules can be successfully processed through conventional wave–soldering techniques as

long as temperature exposure to the lithium energy source contained within does not exceed +85

°C. Post solder

cleaning with water washing techniques is acceptable, provided that ultrasonic vibration is not used.