Key facts
- Brand
- STMicroelectronics
- Model
- STMPE1801
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
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ST STMPE1801 handbook
The STMPE1801 is a GPIO port expander capable of interfacing a main digital ASIC via the two-line bidirectional bus (I2C). It 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 power consumption. Potential applications include portable media players, game consoles, mobile phones, and smart phones.
Read onlineSTMicroelectronics STMPE1801 specifications
| Interface Bus | two-line bidirectional bus (I2C) |
|---|---|
| Matrix Keys Capacity | Up to 10x8 (80) matrix keys |
| Special Function Keys | Up to 8 special function keys |
| Dedicated Keys | Up to 4 dedicated keys |
Source: ST AN3245 handbook
All STMicroelectronics STMPE1801 documents by type
How to use the product for one specific task, with worked examples.
- ST AN3245 handbook 19 p
Questions answered in these manuals
What are the GPIO output configurations available?
The device provides push-pull type outputs by default, but open drain outputs can be configured via software programming.
From: ST AN3245 handbook
What is the recommended pull-up resistor value for RSTB?
A 10 kΩ pull-up resistor is recommended at the RSTB pin.
From: ST AN3245 handbook