STMPE2401 8x12 keypad, PWM, wheel

The STMPE2401 is a GPIO (General Purpose Input / output) port expander able to interface a Main Digital ASIC via the two-line bidirectional bus (I²C); separate GPIO Expander IC is often used in Mobile-Multimedia platforms to solve the problems of the limited amounts of GPIOs usually available on the Digital Engine.

The STMPE2401 offers great flexibility as each I/Os is configurable as input, output or specific functions; it's able to scan a keyboard, also provides PWM outputs for brightness control in backlight, rotator decoder interface and GPIO. This device has been designed very low quiescent current, and is including a wake up feature for each I/O, to optimize the power consumption of the IC.

Potential application of the STMPE2401 includes portable media player, game console, mobile phone, smart phone

技术特性

24 GPIOs
Operating voltage 1.8V
Hardware key pad controller (8*12 matrix max)
3 PWM (8 bit) output for LED brightness control and blinking
Interrupt output (open drain) pin
Configurable hotkey feature on each GPIO
Ultra-low Standby-mode current
Package TFBGA - 36 pins 3.6x3.6mm, pitch 0.5mm

功能框图

STMPE2401 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STMPE2401TBR	NRND		1000	TFBGA 36 3.6x3.6	SO-16		STMPE2401TBR

DATASHEET

描述	版本	大小
STMPE2401 : 24-bit Enhanced port expander with Keypad and PWM controller Xpander Logic	2	960KB