Data Sheet

September 2011 Doc ID 15432 Rev 4 1/56
56
STMPE610
S-Touch
®
: advanced touchscreen controller
with 6-bit port expander
Features
■ 6 GPIOs
■ 1.8 - 3.3 V operating voltage
■ Integrated 4-wire touchscreen controller
■ Interrupt output pin
■ Wakeup feature on each I/O
■ SPI and I
2
C interface
■ Up to 2 devices sharing the same bus in I
2
C
mode (1 address line)
■ 6-input 12-bit ADC
■ 128-depth buffer touchscreen controller
■ Touchscreen movement detection algorithm
■ 25 kV air-gap ESD protection (system level)
■ 4 kV HBM ESD protection (device level)
Applications
■ Portable media players
■ Game consoles
■ Mobile and smartphones
■ GPS
Description
The STMPE610 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). A separate GPIO expander is often used in
mobile multimedia platforms to solve the
problems of the limited amount of GPIOs typically
available on the digital engine.
The STMPE610 offers great flexibility, as each I/O
can be configured as input, output or specific
functions. The device has been designed with
very low quiescent current and includes a wakeup
feature for each I/O, to optimize the power
consumption of the device.
A 4-wire touchscreen controller is built into the
STMPE610. The touchscreen controller is
enhanced with a movement tracking algorithm to
avoid excessive data, 128 x 32 bit buffer and a
programmable active window feature.
QFN16
(3x3mm)
Table 1. Device summary
Order code Package Packaging
STMPE610QTR QFN16 Tape and reel
www.st.com