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| PCF8574_15 Datasheet, PDF (8/36 Pages) Texas Instruments – Remote 8-Bit I/O Expander for I2C Bus | |||
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PCF8574
SCPS068I â JULY 2001 â REVISED NOVEMBER 2015
7 Parameter Measurement Information
VCC
DUT Pn
RL = 1 kâ¦
CL = 10 pF to 400 pF
LOAD CIRCUIT
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Stop
Condition
(P)
Start
Condition
(S)
Bit 7
MSB
2 Bytes for Complete Device
Programming
Bit 6
Bit 0
LSB
(R/W)
Acknowledge
(A)
Stop
Condition
(P)
tscl
tsch
SCL
tbuf
SDA
ticf
tsth
Start or
Repeat
Start
Condition
ticr
ticf
tPHL
tsts
tsp
tPLH
ticr
tsds
tsdh
Repeat
Start
Condition
tsps
Stop
Condition
VOLTAGE WAVEFORMS
Figure 12. I2C Interface Load Circuit and Voltage Waveforms
0.7 Ã VCC
0.3 Ã VCC
0.7 Ã VCC
0.3 Ã VCC
8
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