參數(shù)資料
型號: ISL12025
廠商: Intersil Corporation
英文描述: Real-Time Clock/Calendar with EEPROM(EEPROM實時時鐘/日歷)
中文描述: 實時時鐘/日歷(EEPROM的實時時鐘/日歷帶有EEPROM)
文件頁數(shù): 6/27頁
文件大?。?/td> 412K
代理商: ISL12025
6
FN6371.2
October 19, 2007
Timing Diagrams
t
SU:STO
t
DH
t
HIGH
t
SU:STA
t
HD:STA
t
HD:DAT
t
SU:DAT
SCL
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t
F
t
LOW
t
BUF
t
AA
t
R
t
HD:STO
FIGURE 1. BUS TIMING
SCL
SDA
t
WC
8TH BIT OF LAST BYTE
ACK
STOP
CONDITION
START
CONDITION
FIGURE 2. WRITE CYCLE TIMING
t
RSP
<t
WDO
t
RST
RESET
SDA
t
RSP
NOTE: ALL INPUTS ARE IGNORED DURING THE ACTIVE RESET PERIOD (t
RST
).
FIGURE 3. WATCHDOG TIMING
t
RST
SCL
t
RSP
>t
WDO
t
RSP
>t
WDO
START
STOP START
V
DD
V
RESET
RESET
t
PURST
t
PURST
t
R
t
F
t
RPD
V
RVALID
FIGURE 4. RESET TIMING
ISL12025
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