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PT7C4311WE 数据表(PDF) 5 Page - Pericom Semiconductor Corporation

部件名 PT7C4311WE
功能描述  Real-time Clock Module
PDF  16 Pages
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制造商  PERICOM [Pericom Semiconductor Corporation]
网页  http://www.pericom.com
标志 PERICOM - Pericom Semiconductor Corporation

PT7C4311WE 数据表(HTML) 5 Page - Pericom Semiconductor Corporation

  PT7C4311WE Datasheet HTML 1Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 2Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 3Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 4Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 5Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 6Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 7Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 8Page - Pericom Semiconductor Corporation PT7C4311WE Datasheet HTML 9Page - Pericom Semiconductor Corporation Next Button
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2015-06-0002
PT0322-8
06/16/15
5
PT7C4311
Real-time Clock Module (I
2C Bus)
AC Electrical Characteristics
Sym
Description
Value
Unit
VHM
Rising and falling threshold voltage high
0.8 VCC
V
VHL
Rising and falling threshold voltage low
0.2 VCC
V
Over the operating range
Symbol
Item
STAND Mode (I
2C)
FAST Mode (I
2C)
Unit
Min.
Max.
Min.
Max.
fSCL
SCL clock frequency
-
100
-
400
kHz
tSU;STA
START condition set-up time
4.7
-
0.6
-
s
tHD;STA
START condition hold time
4.0
-
0.6
-
s
tSU;DAT
Data set-up time (RTC read/write)
250
-
100
-
ns
tHD;DAT
Data hold time (RTC read/write)
0
-
0
0.9
us
tSU;STO
STOP condition setup time
4.0
-
0.6
-
s
tBUF
Bus idle time between a START and STOP condition
4.7
-
1.3
-
s
tLOW
When SCL = "L"
4.7
-
1.3
-
s
tHIGH
When SCL = "H"
4.0
-
0.6
-
s
tr
Rise time for SCL and SDA
-
1.0
20+0.1CB
0.3
s
tf
Fall time for SCL and SDA
-
0.3
20+0.1CB
0.3
s
CB
Capacitance load for each bus line
0
400
0
400
pF
Timing Diagram
Signal
tf
tr
VHM
VLM
S
Sr
P
t
HD;STA
t
SP
t
SU;DAT
t
HD;STA
t
HD;DAT
t
SU;STA
t
SU;STO
SCL
SDA
t
BUF
t
HD;STA
t
SU;STA
f
SCL
t
LOW
t
HIGH
Sr
S
P
Start condition
Restart condition
Stop condition



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