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TCA9534A Datasheet(PDF) 11 Page - Texas Instruments

Part # TCA9534A
Description  Low Voltage 8-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

TCA9534A Datasheet(HTML) 11 Page - Texas Instruments

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R =1k
L
W
V
CC
C =50pF
L
(seeNote A)
t
buf
t
icr
t
sth
t
sds
t
sdh
t
icf
t
icr
t
scl
t
sch
t
sts
t
PHL
t
PLH
0.3
V
´ CC
Stop
Condition
t
sps
Repeat
Start
Condition
Startor
Repeat
Start
Condition
SCL
SDA
Start
Condition
(S)
Address
Bit7
(MSB)
Data
Bit10
(LSB)
Stop
Condition
(P)
ThreeBytesforComplete
DeviceProgramming
SDA LOADCONFIGURATION
VOLTAGEWAVEFORMS
t
icf
Stop
Condition
(P)
t
sp
DUT
SDA
0.7
V
´ CC
0.3
V
´ CC
0.7
V
´ CC
R/W
Bit0
(LSB)
ACK
(A)
Data
Bit07
(MSB)
Address
Bit1
Address
Bit6
BYTE
DESCRIPTION
1
I Caddress
2
2,3
P-portdata
11
TCA9534A
www.ti.com
SCPS198B – SEPTEMBER 2014 – REVISED DECEMBER 2016
Product Folder Links: TCA9534A
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
7 Parameter Measurement Information
A.
CL includes probe and jig capacitance.
B.
All inputs are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns.
C.
All parameters and waveforms are not applicable to all devices.
Figure 19. I2C Interface Load Circuit and Voltage Waveforms


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