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PCF8574 데이터시트(PDF) 3 Page - Texas Instruments

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부품명 PCF8574
상세설명  REMOTE 8-BIT I/O EXPANDER FOR I2C BUS
PDF  26 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

PCF8574 데이터시트(HTML) 3 Page - Texas Instruments

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14
I/O
Port
4
5
6
7
9
10
11
12
P0
P1
P2
P3
P4
P5
P6
P7
Shift
Register
8 Bit
LP Filter
Interrupt
Logic
I2C Bus
Control
Input
Filter
15
Power-On
Reset
Read Pulse
Write Pulse
PCF8574
3
2
1
13
16
8
GND
VCC
SDA
SCL
A2
A1
A0
INT
Pin numbers shown are for the DW and N packages.
To Interrupt
Logic
P0−P7
VCC
GND
CI
S
D
Q
FF
CI
S
D
Q
FF
Write Pulse
Data From
Shift Register
Power-On
Reset
Read Pulse
Data to
Shift Register
100
µA
PCF8574
www.ti.com ............................................................................................................................................................... SCPS068G – JULY 2001 – REVISED MAY 2008
LOGIC DIAGRAM (POSITIVE LOGIC)
SIMPLIFIED SCHEMATIC DIAGRAM OF EACH P-PORT INPUT/OUTPUT
Copyright © 2001–2008, Texas Instruments Incorporated
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3
Product Folder Link(s): PCF8574



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