STMPE1801 datasheet(6/60 Pages) STMICROELECTRONICS

No. de pieza	STMPE1801

Descripción Electrónicos	Xpander Logic™ 18-bit enhanced port expander with keypad controller

PDF	60 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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6 / 60 page

Pin settings

STMPE1801

6/60

Doc ID 17884 Rev 3

2.3

GPIO pin functions

I/O

GPIO11

GPIO11/COL3

I/O

GPIO12

GPIO12/COL4

I/O

GPIO13

GPIO13/COL5

I/O

GPIO14

GPIO14/COL6

I/O

GPIO15

GPIO15/COL7

I/O

GPIO16

GPIO16/COL8

I/O

GPIO17

GPIO17/COL9

INTB

Open drain interrupt output pin. Programmable active low

(a pull-up resistor is required) or active high (a pull-down

resistor is required). Fail safe. Pull to VCC if not in use.

RSTB

External reset input. Active low. Fail safe. Reset pulse

width must be more than 500 µs to be valid.

SDA

I2C data. Fail safe

SCL

I2C clock. Fail safe

No connect

VCC

Power supply

GND

Ground

Table 2.

Pin description (continued)

Pin number

Type

Symbol

Name and function

Table 3.

GPIO pin function

Name

Primary function

Alternate function

GPIO0

GPIO

Keypad row 0

GPIO1

GPIO

Keypad row 1

GPIO2

GPIO

Keypad row 2

GPIO3

GPIO

Keypad row 3

GPIO4

GPIO

Keypad row 4

GPIO5

GPIO

Keypad row 5

GPIO6

GPIO

Keypad row 6

GPIO7

GPIO

Keypad row 7

GPIO8

GPIO

Keypad column 0

GPIO9

GPIO

Keypad column 1

GPIO10

GPIO

Keypad column 2

GPIO11

GPIO

Keypad column 3

GPIO12

GPIO

Keypad column 4

STMPE1801 Datasheet(PDF) 6 Page - STMicroelectronics

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