X1226 Xicor, X1226 Datasheet - Page 17

• Manufacturer Part Number: X1226
• Description: Real Time Clock/Calendar with EEPROM
• Manufacturer: Xicor

X1226
Write Cycle Timing
Power Up Timing
Notes: (1) Delays are measured from the time V
Nonvolatile Write Cycle Timing
Note: (1) t
REV 1.1.24 1/13/03
Symbol
Symbol
t
t
PUW
(2) Typical values are for T
t
PUR
WC
SDA
SCL
It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
(1)
WC
(1)
tested. V
(1)
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.
CC
8th Bit of Last Byte
slew rate should be between 0.2mV/µsec and 50mV/µsec.
Time from Power Up to Read
Time from Power Up to Write
Write Cycle Time
A
= 25°C and V
Parameter
Parameter
CC
CC
= 5.0V
ACK
is stable until the specified operation can be initiated. These parameters are not 100%
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Condition
Stop
Min.
Min.
t
WC
Characteristics subject to change without notice.
Condition
Typ.
Typ.
Start
5
(2)
(1)
Max.
Max.
10
1
5
Units
Units
ms
ms
ms
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