參數(shù)資料
型號: X1226S8
英文描述: Real Time Clock/Calendar with EEPROM
中文描述: 實(shí)時(shí)時(shí)鐘/日歷帶有EEPROM
文件頁數(shù): 17/24頁
文件大小: 420K
代理商: X1226S8
X1226
REV 1.1.24 1/13/03
Characteristics subject to change without notice.
17 of 24
www.xicor.com
Write Cycle Timing
Power Up Timing
Notes:
(1)
Delays are measured from the time V
CC
is stable until the specified operation can be initiated. These parameters are not 100%
tested. V
CC
slew rate should be between 0.2mV/μsec and 50mV/μsec.
Typical values are for T
A
= 25°C and V
CC
= 5.0V
(2)
Nonvolatile Write Cycle Timing
Note:
(1) t
WC
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.
Symbol
t
PUR
(1)
t
PUW
(1)
Parameter
Min.
Typ.
(2)
Max.
1
5
Units
ms
ms
Time from Power Up to Read
Time from Power Up to Write
Symbol
t
WC
(1)
Parameter
Min.
Typ.
(1)
5
Max.
10
Units
ms
Write Cycle Time
SCL
SDA
t
WC
8th Bit of Last Byte
ACK
Stop
Condition
Start
Condition
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