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TCA9538DBRG4.A 데이터시트(PDF) 18 Page - Texas Instruments

부품명 TCA9538DBRG4.A
상세설명  TCA9538 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset, and Configuration Registers
PDF  40 Pages
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제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
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TCA9538DBRG4.A 데이터시트(HTML) 18 Page - Texas Instruments

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Data Output
by Transmitter
SCL From
Master
Start
Condition
S
1
2
8
9
Data Output
by Receiver
Clock Pulse for
Acknowledgment
NACK
ACK
SDA
SCL
Data Line
Stable;
Data Valid
Change
of Data
Allowed
18
TCA9538
SCPS199D – AUGUST 2014 – REVISED OCTOBER 2016
www.ti.com
Product Folder Links: TCA9538
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
Programming (continued)
Figure 16. Bit Transfer
Figure 17. Acknowledgment on I2C Bus
Table 1 shows the TCA9538 interface definition.
Table 1. Interface Definition Table
BYTE
BIT
7 (MSB)
6
5
4
3
2
1
0 (LSB)
I2C slave address
H
H
H
L
L
A1
A0
R/W
Px I/O data bus
P7
P6
P5
P4
P3
P2
P1
P0



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