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TSC2046EIPWRTI N/a1avai4-Wire Touch Screen Controller with low voltage digital I/O
TSC2046EIRGVRTexasInsN/a767avai4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection 16-VQFN -40 to 85
TSC2046EIRGVTTIN/a639avai4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection 16-VQFN -40 to 85


TSC2046EIRGVR ,4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection 16-VQFN -40 to 85SBAS417B − JUNE 2007 − REVISED JANUARY 2008(1)ELECTROSTATIC DISCHARGE SENSITIVITYABSOLUTE
TSC2046EIRGVT ,4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection 16-VQFN -40 to 85ELECTRICAL CHARACTERISTICS: V = +2.7V to +5.5V SAt T = −40°C to +85°C, +V = +2.7V, V = 2.5V inter ..
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TSC2046EIPWR-TSC2046EIRGVR-TSC2046EIRGVT
4-Wire Touch Screen Controller with low voltage digital I/O and extended ESD protection
FEATURES Same Pinout as ADS7846 2.2V to 5.25V Operation 1.5V to 5.25V Digital I/O Internal 2.5V Reference Direct Battery Measurement (0V to 6V) On-Chip Temperature Measurement Touch-Pressure Measurement QSPI and SPI 3-Wire Interface Auto Power-Down Exceeds IEC 61000-4-2 ESD Requirements
− �15kV Contact Discharge
− No External Components Needed
Available In TSSOP-16, QFN-16, and
VFBGA-48 Packages
APPLICATIONS
Personal Digital Assistants Portable Instruments Point-of-Sale Terminals Pagers Touch Screen Monitors Cellular Phones
US Patent No. 6246394
DESCRIPTION

The TSC2046E is the next-generation version of the
ADS7846 4-wire touch screen controller, supporting a
low-voltage I/O interface from 1.5V to 5.25V. The
TSC2046E is 100% pin-compatible with the existing
ADS7846, and drops into the same socket. This design
allows for an easy upgrade of current applications to the
new version. The TSC2046E also has an on-chip 2.5V
reference that can be used for the auxiliary input, battery
monitor, and temperature measurement modes. The
reference can also be powered down when not used to
conserve power. The internal reference operates down to
a supply voltage of 2.7V, while monitoring the battery
voltage from 0V to 6V.
The low-power consumption of < 0.75mW typ at 2.7V
(reference off), high-speed (up to 125kHz sample rate),
and on-chip drivers make the TSC2046E an ideal choice
for battery-operated systems such as personal digital
assistants (PDAs) with resistive touch screens, pagers,
cellular phones, and other portable equipment. The
TSC2046E is available in TSSOP-16, QFN-16, and
VFBGA-48 packages and is specified over the –40°C to
+85°C temperature range.
TSC2046E

DOUT
BUSY
DCLK
DIN
VBAT
AUX
VREF
IOVDD
PENIRQ
TSC2046E

SBAS417B − JUNE 2007 − REVISED JANUARY 2008
Low V oltage I/O
TOUCH SCREEN CONTROLLER
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