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TCA9544APWR Datasheet(PDF) 8 Page - Texas Instruments

Part # TCA9544APWR
Description  TCA9544A Low Voltage 4-Channel I2C and SMBus Multiplexer With Interrupt Logic
PDF  29 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TCA9544APWR Datasheet(HTML) 8 Page - Texas Instruments

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RL = 1 kΩ
VCC
CL = 50 pF
(See Note A)
tbuf
ticr
tsth
tsds
tsdh
ticf
ticr
tscl
tsch
tsts
tvd(ACK)
or tvdL
tvdH
0.3
× VCC
Stop
Condition
tsps
Repeat
Start
Condition
Start or Repeat
Start Condition
SCL
SDA
Start
Condition
(S)
Address
Bit 7
(MSB)
Data
Bit 0
(LSB)
Stop
Condition
(P)
Two Bytes for Complete
Device Programming
I2C-PORT LOAD CONFIGURATION
VOLTAGE WAVEFORMS
ticf
Stop
Condition
(P)
tsp
DUT
SDn, SCn
0.7
× VCC
0.3
× VCC
0.7
× VCC
R/W
Bit 0
(LSB)
ACK
(A)
Data
Bit 7
(MSB)
Address
Bit 1
Address
Bit 6
ACK
(A)
BYTE
DESCRIPTION
I2C address + R/W
Control register data
1
2
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr/tf ≤ 30 ns.
C. The outputs are measured one at a time, with one transition per measurement.
8
TCA9544A
SCPS209C – MAY 2014 – REVISED NOVEMBER 2019
www.ti.com
Product Folder Links: TCA9544A
Submit Documentation Feedback
Copyright © 2014–2019, Texas Instruments Incorporated
7 Parameter Measurement Information
Figure 5. I2C Interface Load Circuit, Byte Descriptions, and Voltage Waveforms



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