stmpe1801 STMicroelectronics, stmpe1801 Datasheet

stmpe1801

Manufacturer Part Number

stmpe1801

Description

Xpander Logic? 18-bit Enhanced Port Expander With Keypad Controller

Manufacturer

STMicroelectronics

Datasheet

1.STMPE1801.pdf (60 pages)

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Features

■

Table 1.

March 2011

18 GPIOs configurable as GPI, GPO, keypad

matrix, special key or dedicated key function

Operating voltage: 1.65 - 3.6 V

Hardware keypad controller (KPC)

(10 x 8 matrix with 4 optional dedicated keys

maximum)

Keypad controller capable of detecting

keypress in hibernation mode

Interrupt output (open drain) pin

Advanced power management system

Ultra-low standby mode current

Programmable pull-up resistors for all GPIO

pins

ESD performance on GPIO pins:

– ± 8 kV human body model

ESD performance on V

SCL, SDA pins:

– ± 3 kV human body model

(JESD22 A114-C)

STMPE1801BJR

Order code

Device summary

18-bit enhanced port expander with keypad controller

, GND, INT

Flip-chip CSP 25 (2.03 x 2.03 mm)

, R

Doc ID 17884 Rev 3

STB

0.4 mm pitch

Package

Description

The STMPE1801 is a GPIO (general purpose

input/output) port expander capable of interfacing

a main digital ASIC via the two-line bidirectional

bus (I

used in mobile multimedia platforms to resolve

the problem of the limited number of GPIOs

typically available on digital engines.

The STMPE1801 offers high flexibility, as each

I/O can be configured as input, output, special

key, keypad matrix or dedicated key function. This

device is designed to include very low quiescent

current, and a wakeup feature for each I/O, to

optimize the power consumption of the device.

Potential applications for the STMPE1801 include

portable media players, game consoles, mobile

and smart phones.

C). A separate GPIO expander IC is often

Flip-chip CSP 25

(2.03 x 2.03 mm)

Xpander Logic™

STMPE1801

Tape and reel

Packaging

www.st.com

1/60

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