The STMPE2403 is a 24-bit enhanced port expander with keypad and PWM controller. It features 24 GPIOs, 1.8V operating voltage, hardware keypad controller (max 8x12 matrix), 8 special function key support, 3 PWM (8 bit) outputs for LED brightness control and blinking, interrupt output (open drain) pin, configurable hotkey feature on each GPIO and ultra-low standby-mode current.
The STMPE2403 is a 24-bit enhanced port expander designed to interface a main digital ASIC via a two-line bidirectional bus. It is commonly used in mobile multimedia platforms to address limited GPIO availability on digital engines. The device features 24 GPIOs, an operating voltage of 1.8V, and includes a hardware keypad controller supporting up to an 8x12 matrix.
| Number of GPIOs | 24 |
|---|---|
| Operating voltage | 1.8V |
| Package type | TFBGA - 36 pins |
| Package dimensions | 3.6x3.6mm |
| PWM outputs | 3 PWM (8 bit) |
| Keypad matrix support | 8*12 matrix max |
The device operates at 1.8V.
The hardware keypad controller supports a maximum of 8x12 matrix.
The device provides 3 PWM outputs for LED brightness control and blinking.