UR6HCPS2-SP40 Datasheet | SEMTECH

DESCRIPTION The PS2Adapt is a Zero-Power protocol interpreter that can link an AT/PS/2-patible Human Input Device (HID), such as a keyboard, mouse, bar-code reader, etc. to any host system equipped with either Asynchronous Serial Interface (ASI) or the Serial Peripheral Interface (SPI). TM TM Features - Typically consumes less than 1 µA - Interfaces the host system via either Asynchronous Serial Interface or Serial Peripheral Interface (SPI) - Jumper selectable interface and Baud rate - Offers four PS/2 ports for the hotplug connection of external keyboards or mice including Mouse Wheel, 5 button mice and absolute mode touch screens APPLICATIONS - H/PCs - Web Phones PIN ASSIGNMENTS - PDAs - System Legacy Support - Easy to use, one way munication protocol - Operating voltage between 3 and 5 Volts - Custom versions available in small or large quantities - Small 7x7 mm package to acmodate slim designs The IC was designed specifically for RISC-based portable devices that are limited to ASI and SPI interfaces. The PS2Adapt TM allows designers to easily connect PS/2 devices to their system. The UR6HCPS2-SP40 emulates all the functions of the 8042 keyboard controller which typically resides on the AT/PS/2 motherboard. The Zero-Power TM PS2Adapt TM will power down even between key presses and bewteen mouse reports. Typical power consumption is only 1 µA operating between 3-5 Volts. The UR6HCPS2-SP40 boasts 4 external PS/2 ports that support the hot-plug connection of an external PS/2 keyboard or mouse, including Mouse Wheel, 5-button mice and touch screens in absolute mode. Each of four external PS/2 ports also support more than 140 key scan codes including international language keys, internet keys, and power keys. The PS2Adapt TM also offers 4 reserved pins for LED functions, their functions can be customized by Semtech. 24 25 E3DATA Rx D Tx D SCLK SDATA _PWR_OFF _CTS/_ATN CONF0 E1DATA E1CLK E0DATA E0CLK _RTS/_SS E3CLK E2DATA E2CLK 17 16 RES0 LED0 LED1 UR6HCPS2-SP40-FG...