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.
|DS6934: Xpander Logic™ 18-bit enhanced port expander with keypad controller||3.1||661 KB|
|AN3245: A hardware and software guide for the STMPE1801 Xpander Logic™ 18-bit enhanced port expander with keypad controller||1.1||342 KB|
|Part Number||Package||Packing Type||Marketing Status||Unit Price (US$) *||Quantity||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STMPE1801BJR||Chip Scale Package 0.4mm pitch||Tape And Reel||Active : Product is in volume production||-||-||EAR99||CHINA||MORE INFO||No availability reported, please contact our Sales office|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|STMPE1801BJR||Active||Chip Scale Package 0.4mm pitch||Industrial||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.