CAT5171TBI-50GT3(2009) 查看數據表（PDF） - ON Semiconductor
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CAT5171TBI-50GT3 Datasheet PDF : 12 Pages
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CAT5171
Table 5. CAPACITANCE
TA = 25°C, f = 1.0 MHz, VDD = 5 V
Symbol
Test
CI/O
Input/Output Capacitance (SDA, SCL)
(Note 10)
Conditions
VI/O = 0V
Table 6. POWER UP TIMING (Notes 10 and 11)
Symbol
Parameter
tPUR
Power−up to Read Operation
tPUW
Power−up to Write Operation
10. This parameter is tested initially and after a design or process change that affects the parameter.
11. tPUR and t PUW are delays required from the time VCC is stable until the specified operation can be initiated.
Table 7. DIGITAL POTENTIOMETER TIMING
Symbol
Parameter
Min
tWRPO
tWR
Wiper Response Time After Power Supply Stable
Wiper Response Time: SCL falling edge after last bit of wiper position data byte to
wiper change
Table 8. A.C. CHARACTERISTICS
VDD = +2.7 V to +5.5 V, −40°C to +85°C unless otherwise specified.
Symbol
Parameter
fSCL
tHIGH
tLOW
tSU:STA
tHD:STA
tSU:DAT
tHD:DAT
tSU:STO
tBUF
tR
tF
tDH
TI
tAA
Clock Frequency
Clock High Period
Clock Low Period
Start Condition Setup Time (for a Repeated Start Condition)
Start Condition Hold Time
Data in Setup Time
Data in Hold Time
Stop Condition Setup Time
Time the bus must be free before a new transmission can start
SDA and SCL Rise Time
SDA and SCL Fall Time
Data Out Hold Time
Noise Suppression Time Constant at SCL, SDA Inputs
SCL Low to SDA Data Out and ACK Out
Min
Typ
600
1300
600
600
100
0
600
1300
100
Max
Units
8
pF
Max
Units
1
ms
1
ms
Max
Units
50
ms
20
ms
Max
Units
400
kHz
ns
ns
ns
ns
ns
ns
ns
ns
300
ns
300
ns
ns
50
ns
1
ms
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