X1243 – Preliminary Information
TIMING DIAGRAMS
Bus Timing
t
t
t
t
R
F
HIGH
LOW
SCL
SDA IN
t
SU:DAT
t
t
t
SU:STO
SU:STA
HD:DAT
t
HD:STA
t
t
t
BUF
AA
DH
SDA OUT
Write Cycle Timing
SCL
SDA
8th Bit of Last Byte
ACK
t
WC
Stop
Condition
Start
Condition
Power Up Timing
Symbol
Parameter
Min.
Max.
Unit
(1)
t
Time from Power Up to Read
Time from Power Up to Write
1
5
ms
ms
PUR
(1)
t
PUW
Note: (1) Delays are measured from the time V
is stable until the specified operation can be initiated. These parameters are periodically
CC
sampled and not 100% tested.
Nonvolatile Write Cycle Timing
Symbol
Parameter
Min.
Typ.(1)
Max.
Unit
(1)
t
Write Cycle Time
5
10
ms
WC
Note: (1) t
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.
WC
It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
Characteristics subject to change without notice. 15 of 18
REV 1.1.4 5/31/01
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