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TCA9535 Datasheet(PDF) 13 Page - Texas Instruments

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Part No. TCA9535
Description  Low-Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TCA9535 Datasheet(HTML) 13 Page - Texas Instruments

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Write Mode (R/
= 0)
W
P-Port Load Configuration
DUT
CL = 50 pF
(see Note A)
Pn
2 × VCC
500
500
Read Mode (R/
= 1)
W
Pn
P0
A
0.7 × VCC
0.3 × VCC
SCL
P3
0.7 × VCC
0.3 × VCC
tps
tph
P0
A
0.7 × VCC
0.3 × VCC
SCL
P3
tpv
(see Note B)
Slave
ACK
Unstable
Data
Last Stable Bit
SDA
Pn
13
TCA9535
www.ti.com
SCPS201D – AUGUST 2009 – REVISED JULY 2016
Product Folder Links: TCA9535
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Parameter Measurement Information (continued)
A.
CL includes probe and jig capacitance.
B.
tpv is measured from 0.7 × VCC on SCL to 50% I/O (Pn) output.
C.
All inputs are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns.
D.
The outputs are measured one at a time, with one transition per measurement.
E.
All parameters and waveforms are not applicable to all devices.
Figure 21. P-Port Load Circuit and Voltage Waveforms


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