STMPE1801

NRND

Xpander Logic 18-bit enhanced port expander with keypad controller

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  • The STMPE1801 is a GPIO (general purpose input/output) port expander capable of interfacing a main digital ASIC via the two-line bidirectional bus (I2C). A separate GPIO expander IC is often 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.

    Key Features

    • 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 (JESD22 A114-C)
    • ESD performance on VCC, GND, INTB, RSTB, SCL, SDA pins:
      • ± 3 kV human body model (JESD22 A114-C)

Circuit Diagram

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Technical Documentation

    • Description Version Size Action
      DS6934
      Xpander Logic™ 18-bit enhanced port expander with keypad controller
      3.1
      661.02 KB
      PDF
      DS6934

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

    • Description Version Size Action
      AN3245
      A hardware and software guide for the STMPE1801 Xpander Logic™ 18-bit enhanced port expander with keypad controller
      1.1
      342.63 KB
      PDF
      AN3245

      A hardware and software guide for the STMPE1801 Xpander Logic™ 18-bit enhanced port expander with keypad controller

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STMPE1801BJR
NRND
Chip Scale Package 0.4mm pitch Industrial Ecopack2

STMPE1801BJR

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

Chip Scale Package 0.4mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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STMPE1801BJR Available at 1 distributors

Distributor availability ofSTMPE1801BJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4889 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4889

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-07

Chip Scale Package 0.4mm pitch Tape And Reel
NRND
EAR99 CHINA

STMPE1801BJR

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

Distributor availability ofSTMPE1801BJR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4889 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4889

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-07

Marketing Status

NRND

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors