參數(shù)資料
型號: M41T256YMH7E
廠商: 意法半導體
英文描述: 256 Kbit 32K x8 SERIAL RTC
中文描述: 256千位32K的x8串行實時時鐘
文件頁數(shù): 8/27頁
文件大?。?/td> 185K
代理商: M41T256YMH7E
M41T256Y
8/27
Figure 9. Bus Timing Requirements Sequence
Table 2. AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –25 to 70°C; V
CC
= 4.5 to 5.5V (except where noted).
2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max) of the falling edge of SCL.
Symbol
Parameter
(1)
Min
Max
Unit
f
SCL
SCL Clock Frequency
0
400
kHz
t
BUF
Time the bus must be free before a new transmission can start
1.3
μs
t
F
SDA and SCL Fall Time
300
ns
t
HD:DAT
Data Hold Time
0
μs
t
HD:STA
START Condition Hold Time
(after this period the first clock pulse is generated)
600
ns
t
HIGH
Clock High Period
600
ns
t
LOW
Clock Low Period
1.3
μs
t
R
SDA and SCL Rise Time
300
ns
t
SU:DAT(2)
Data Setup Time
100
ns
t
SU:STA
START Condition Setup Time
(only relevant for a repeated start condition)
600
ns
t
SU:STO
STOP Condition Setup Time
600
ns
AI00589
SDA
P
tSU:STO
tSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STA
tBUF
S
P
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