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| X1226_06 Datasheet, PDF (19/25 Pages) Intersil Corporation – Real Time Clock/Calendar with EEPROM | |||
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X1226
Write Cycle Timing
SCL
SDA
8th Bit of Last Byte
ACK
tWC
Stop
Condition
Start
Condition
Power-up Timing
Symbol
Parameter
Min.
Typ.(2)
Max.
Units
tPUR(1)
Time from Power-up to Read
1
ms
tPUW(1)
Time from Power-up to Write
5
ms
Notes: (1) Delays are measured from the time VCC is stable until the specified operation can be initiated. These parameters are not 100% tested.
VCC slew rate should be between 0.2mV/µsec and 50mV/µsec.
(2) Typical values are for TA = 25°C and VCC = 5.0V
Nonvolatile Write Cycle Timing
Symbol
Parameter
Min.
Typ.(1)
Max.
Units
tWC(1)
Write Cycle Time
5
10
ms
Note: (1) tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is
the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
19
FN8098.3
May 8, 2006
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