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TCA8418EYFPR Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TCA8418EYFPR
Descripción Electrónicos  I2C Controlled Keypad Scan IC
Download  54 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TCA8418EYFPR Datasheet(HTML) 3 Page - Texas Instruments

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18
1
ROW7
5
ROW3
16
17
14
3
ROW5
2
ROW6
13
6
ROW2
15
COL9
COL5
COL7
COL8
COL4
COL6
4
ROW4
TCA8418
www.ti.com
SCPS215E – SEPTEMBER 2009 – REVISED NOVEMBER 2015
5 Pin Configuration and Functions
RTW Package
24-Pin WQFN
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
NO.
1
ROW7
I/O
GPIO or row 7 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
2
ROW6
I/O
GPIO or row 6 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
3
ROW5
I/O
GPIO or row 5 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
4
ROW4
I/O
GPIO or row 4 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
5
ROW3
I/O
GPIO or row 3 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
6
ROW2
I/O
GPIO or row 2 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
7
ROW1
I/O
GPIO or row 1 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
8
ROW0
I/O
GPIO or row 0 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
9
COL0
I/O
GPIO or column 0 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
10
COL1
I/O
GPIO or column 1 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
11
COL2
I/O
GPIO or column 2 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
12
COL3
I/O
GPIO or column 3 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
13
COL4
I/O
GPIO or column 4 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
14
COL5
I/O
GPIO or column 5 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
15
COL6
I/O
GPIO or column 6 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
16
COL7
I/O
GPIO or column 7 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
17
COL8
I/O
GPIO or column 8 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
18
COL9
I/O
GPIO or column 9 in keypad matrix. If unused, connect to VCC through a pull-up resistor.
19
GND
–
Ground
20
RESET
I
Active-low reset input. Connect to VCC through a pull-up resistor, if no active connection is used.
21
VCC
-
Supply voltage of 1.65 V to 3.6 V
22
SDA
I/O
Serial data bus. Connect to VCC through a pull-up resistor.
23
SCL
I
Serial clock bus. Connect to VCC through a pull-up resistor.
24
INT
O
Active-low interrupt output. Open drain structure. Connect to VCC through a pull-up resistor.
Copyright © 2009–2015, Texas Instruments Incorporated
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