UR8HC342-FQ Datasheet | SEMTECH

Description The USAR ACPITroller TM 342 UR8HC342 is a single IC that functions both as an 8042-type Human Input Device Controller (HIDC) and an ACPI-pliant Embedded Controller (EC). The UR8HC342 provides the typical functionality of an 8042-type HID Controller with embedded key and motion scanning. In addition, the UR8HC342 functions as an ACPIpliant Embedded Controller (EC) and SMBus host. The IC achieves unparalleled minimum power consumption (typically less than 1µA) due to USAR's patented Zero-Power™ technologies for both PS/2 ports and the SMBus port - an industry first. The USAR ACPITroller™ 342 can power down even when devices are connected and active. Based on USAR's patented Zero Power™ technology, the UR8HC342 always operates in the "STOP" mode, independently of the configuration and without any data or event losses. Using the UR8HC342, system designers can implement systems that take advantage of the SMBus, the Smart Battery System, and the ACPI specifications, all using a single IC. The UR8HC342 can be customized easily through an extensive library of hardware and firmware modules in order to acmodate specialized configurations at low production cost. Copyright 2000 USAR Systems, Inc. All rights reserved. A Semtech pany Preliminary USAR System Management family product specifications Features - Acts as an 8042 HID and ACPI Embedded Controller - Typically consumes less than 1µA - Two external PS/2 ports for external keyboard and mouse with autodetect and hot-plug support - Patented Zero-Power™ operation of all PS/2 ports and the SMBus port an industry first - Simultaneous operation of external and internal input devices - Alpha Mouse TM Pointing Devices Manager provides Mousewheel support- a first for an EC - Acts as a keyboard controller and encoder for an 8 x 16 keyboard matrix; supports all three keyboard scan code sets Applications - Handhelds / Notebooks - Industrial / Vertical systems Pin Assignments GPE6/IVSD1:1/PBOVR GPE5/IVSD1:0/PB DQ7 DQ6 DQ5 DQ4...