TSC2003 Datasheet, PDF (1/22 Pages) Texas Instruments – I2C TOUCH SCREEN CONTROLLER

TSC2003
TSC2003
TSC2003
SBAS162D – NOVEMBER 2000 – REVISED SEPTEMBER 2004
I²C TOUCH SCREEN CONTROLLER
FEATURES
q 2.5V TO 5.25V OPERATION
q INTERNAL 2.5V REFERENCE
q DIRECT BATTERY MEASUREMENT
(0.5V TO 6V)
q ON-CHIP TEMPERATURE MEASUREMENT
q TOUCH-PRESSURE MEASUREMENT
q I²C INTERFACE SUPPORTS:
Standard, Fast, and High-Speed Modes
q AUTO POWER DOWN
q TSSOP-16 AND VFBGA-48 PACKAGES
APPLICATIONS
q PERSONAL DIGITAL ASSISTANTS
q PORTABLE INSTRUMENTS
q POINT-OF-SALES TERMINALS
q PAGERS
q TOUCH SCREEN MONITORS
q CELLULAR PHONES
V_DD
X+
X–
V_DD
Y+
Y–
IN1
IN2
V_BAT1
MUX
V_BAT2
DESCRIPTION
The TSC2003 is a 4-wire resistive touch screen controller. It
also features direct measurement of two batteries, two aux-
iliary analog inputs, temperature measurement, and touch-
pressure measurement.
The TSC2003 has an on-chip 2.5V reference that can be
utilized for the auxiliary inputs, battery monitors, and tem-
perature-measurement modes. The reference can also be
powered down when not used to conserve power. The
internal reference will operate down to 2.7V supply voltage
while monitoring the battery voltage from 0.5V to 6V.
The TSC2003 is available in the small TSSOP-16 and
VFBGA-48 packages and is specified over the –40°C to
+85°C temperature range.
TEMP0
TEMP1
PENIRQ
SCL
SAR
CDAC
Comparator
I²C
Interface
and
Control
Logic
Channel Select
Internal
Clock
SDA
A0
A1
V_REF
Internal
+2.5V_REF
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2000-2004, Texas Instruments Incorporated