 English |
|
|
|
|
|
|
|
| X1243 Datasheet, PDF (14/17 Pages) Xicor Inc. – Real Time Clock/Calendar/Alarm with EEPROM | |||
| |||
| ◁ |
X1243
Timing Diagrams
Bus Timing
SCL
tSU:STA
SDA IN
tF
tHIGH
tSU:DAT
tHD:STA
tLOW
tHD:DAT
SDA OUT
tR
tAA tDH
Write Cycle Timing
tSU:STO
tBUF
SCL
SDA
8th Bit of Last Byte
ACK
tWC
Stop
Condition
Start
Condition
Power Up Timing
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
tPUR(1)
Time from Power Up to Read
1
ms
tPUW(1)
Time from Power Up to Write
5
ms
NOTE: Delays are measured from the time VCC is stable until the specied operation can be initiated. These parameters are periodically sampled
and not 100% tested.
Nonvolatile Write Cycle Timing
SYMBOL
PARAMETER
MIN.
TYP.(1)
MAX.
UNIT
tWC(1)
Write Cycle Time
5
10
ms
NOTE: 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.
14
FN8249.0
April 28, 2005
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese