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參數(shù)資料
| 型號： | X1243S8I |
| 廠商： | INTERSIL CORP |
| 元件分類： | XO, clock |
| 英文描述： | Real Time Clock/Calendar/Alarm with EEPROM |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 16/18頁 |
| 文件大小： | 90K |
| 代理商： | X1243S8I |
X1243
16
AC Specifications
- T
A
= -40C to +85C, V
CC
= +2.7V to +5.5V, unless otherwise specified.
1.
This parameter is periodically sampled and not 100% tested.
2.
Cb = total capacitance of one bus line in pF.
Timing Diagrams
Bus Timing
Symbol
Parameter
400kHz Option
Min
Max
Units
f
SCL
t
IN
(1)
t
AA
t
BUF
SCL Clock Frequency
Pulse width Suppression Time at inputs
SCL LOW to SDA Data Out Valid
Time the bus must be free before a new transmission
can start
Clock LOW Time
Clock HIGH Time
Start Condition Setup Time
Start Condition Hold Time
Data In Setup Time
Data In Hold Time
Stop Condition Setup Time
Data Output Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Capacitive load for each bus line
0
50
0.1
1.3
400
KHz
nS
μ
S
μ
S
0.9
t
LOW
t
HIGH
t
SU:STA
t
HD:STA
t
SU:DAT
t
HD:DAT
t
SU:STO
t
DH
t
R
(1)
t
F
(1)
Cb
1.3
0.6
0.6
0.6
100
0
0.6
50
μ
S
μ
S
μ
S
μ
S
nS
μ
S
μ
S
nS
nS
nS
pF
20 +.1Cb
(2)
20 +.1Cb
(2)
300
300
400
t
SU:STO
t
DH
t
HIGH
t
SU:STA
t
HD:STA
t
HD:DAT
t
SU:DAT
SCL
SDA IN
SDA OUT
t
F
t
LOW
t
BUF
t
AA
t
R
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