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STMPE801 Dataheets PDF



Part Number STMPE801
Manufacturers ST Microelectronics
Logo ST Microelectronics
Description 8-bit port expander Xpander logic
Datasheet STMPE801 DatasheetSTMPE801 Datasheet (PDF)

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 bi.

  STMPE801   STMPE801


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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 2.2 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 I2C module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.1 I2C address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 I2C features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.3 Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.4 Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.5 Acknowledge bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.6 Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.7 Operation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.8 Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.9 Acknowledgement in read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.10 Write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.11 General call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6 Turning I2C block OFF and ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/26 STMPE801 Contents 7 Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.1 System and identification registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.2 System control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 Interrupt, power supply & reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8.1 Interrupt enable GPIO mask register (IEGPIOR) . . . . . . . . . . . . . . . . . . . 16 8.2 Interrupt status GPIO register (ISGPIOR) . . . . . . . . . . . . . . . . . . . . . . . . 17 8.3 GPIO controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.4 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.5 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3/26 Block diagram 1 Block diagram Figure 1. Block diagram STMPE801 4/26 STMPE801 2 Pin settings 2.1 Pin connection Figure 2. Pin connection Pin setting.


ADM2485 STMPE801 74AUP1G175


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