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PCA9544AZQNR Datasheet(PDF) 7 Page - Texas Instruments

Part # PCA9544AZQNR
Description  SMBus Multiplexer With Interrupt Logic
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

PCA9544AZQNR Datasheet(HTML) 7 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.
PCA9544A
www.ti.com
SCPS146E – OCTOBER 2005 – REVISED JUNE 2014
8 Parameter Measurement Information
Figure 1. I2C Interface Load Circuit, Byte Descriptions, and Voltage Waveforms
Copyright © 2005–2014, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: PCA9544A


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