系统介绍

AR1021为2*2 单芯片解决方案，内部集成了CPU/MAC/BB/RF (PA, LNA, SWITCH)，外围精简，无需额外的存储芯片。

系统特性

支持USB, SDIO, MII, RMII, RGMII接口

内嵌MCU, 减轻系统处理器的负载

外围接口丰富，支持SPI, HS-UART, UART, JTAG, GPIOS, I2S, I2C, SPDIF

AR1021

Not Recommended for new designs

The Microchip mTouch™ AR1000 Series Resistive Touch Screen Controller is a complete, easy to integrate, cost-effective and universal touch screen controller chip solution. The AR1000 Series has sophisticated proprietary touch screen decoding algorithms to fully process all touch data and save the host from this overhead. More than the usual “preprocessing” features of other low cost devices, the AR1000 delivers reliable, validated and calibrated touch coordinates. Using its onboard EEPROM, the AR1000 can store and independently apply the calibration to the touch coordinates before sending them to the host. This unique combination makes the AR1000 the most resource efficient touch screen controller for embedded designs.

The AR1021 touch screen controller supports I2C™Compatible and SPI communication. Please reference the AR1011 touch screen controller for UART communication.

Features

Supports any manufacturer's 4-, 5-, or 8-wire analog resistive touch screen

I2C or SPI communication

1024x1024 resolution

EEPROM calibration retention

Supports any size analog resistive touch screen, 1.5" - 24"

Parameter Name：Value

Product Type：Analog Resistive Controller

Measurement Principle：Resistance

Report Rate (pps)：140

Number of Touches：1

Power：3.3Vdc ±5%,5.5Vdc ±5%

Power Modes：2

Position Resolution：1024x1024

Interface：I2C, SPI

Features：4, 5, & 8 wire support

Voltage Range：2.5V - 5.5V