CP2056

Product Brief CP2056 V1.0 Touch Screen Controller Series 4-Wire Touch Screen Controller with Internal Reference General www.datasheet4u.com Description The CP2056 is a 4-wire touch screen controller which supports a low-voltage I/O interface from 1.5V to 3.6V. It contains a 12-bit analog-to-digital converter (ADC) with a synchronous serial interface and low on-resistance switches for driving resistive touch screens. The CP2056 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 CP2056 can make absolute or ratiometric measurements. The CP2056 is guaranteed to operate with a single 2.2V to 3.6V supply voltage. The typical power consumption at 125ksps throughput and a 2.7V supply (reference off) is lower than 0.75mW. Low-power operation makes the CP2056 ideal for battery-operated systems, such as personal digital assistants with resistive touch screens and other portable equipment. The CP2056 is available in QFN16, TSSOP16 packages and is specified over the -40℃ to +85℃ temperature range. QFN16 Package 4mm Х 4mm -40℃~85℃ TSSOP16 Package -40℃~85℃ Features y y y y y y y y y y y 4-wire touch screen interface 2.2V to 3.6V operation 1.5V to 3.6V digital I/O On-chip 2.5V reference Programmable 8bit or 12bit resolution 3-wire serial interface Ratiometric conversion Touch-pressure measurement Direct battery measurement ( 0V to 6V ) O...