STMPE801

Features ■ 8 GPIO ■ Operating voltage 1.65V - 3.6V ■ I/O voltage 1.65V-3.6V ■ Interrupt output pin ■ Reset input pin ■ Wake up feature on each I/O ■ Up to 2 devices sharing the same bus (1 address line) ■ <1µA suspend current Application ■ Portable media player, Game console ■ Mobile phone, Smart phone STMPE801 8-bit port expander Xpander logic QFN16L SO-16 Description The STMPE801 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 STMPE801 offers great flexibility as each I/Os is configurable as input, output. This device has been designed very low quiescent current, and includes wake up feature for each I/O, to optimize the power consumption of the IC. Table 1. Device summary Order codes STMPE801QTR STMPE801MTR July 2007 Package QFN16L (2.6mm x 1.8mm) SO-16 Rev 4 Packaging Tape and reel (3000 per reel) Tape and reel (2500 per reel) 1/26 www.st.com 26 Contents Contents STMPE801 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2...