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STMPE801MTR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
July 2007 Rev 4 1/26
26
STMPE801
8-bit port expander
Xpander logic
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
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
(I
2
C); 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.
QFN16L
SO-16
www.st.com
Table 1. Device summary
Order codes Package Packaging
STMPE801QTR QFN16L (2.6mm x 1.8mm) Tape and reel (3000 per reel)
STMPE801MTR SO-16 Tape and reel (2500 per reel)
Contents STMPE801
2/26
Contents
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
STMPE801 Contents
3/26
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
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

STMPE801MTR

Mfr. #:
Buy STMPE801MTR
Manufacturer:
STMicroelectronics
Description:
Interface - I/O Expanders 8B port expander Xpander logic
Lifecycle:
New from this manufacturer.
Delivery:
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