Holtek Semiconductor HT82M91A
HT82M91A is a 3D mouse encoder chip especially designed for USB applications. The HT82M91A can support the USB Standard Request as well as HID Class Request version 1.0. It can be briefly described as a Holtek 8-bit mC with an on-chip USB interface logic.| Part No. | HT82M91A |
|---|---|
| Datasheet | HT82M91A Download |
| Manufacturer |  Holtek Semiconductor |
| Description | 3D USB Mouse |
| Buy | Stock & Price |
FEATURES
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● Complete Universal Serial Bus specification compatibility Serial Bus Interface Engine (SIE) USB transceiver Supports three buttons (R, M, L) and three axes (X, Y, Z) input Z axis can support two kinds of scroller input (optomechanical and mechanical)
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● Single chip solution especially for USB mouse function Halt function and wake-up feature reduce power consumption Has plug and Play functions Minimal external components 6MHz crystal oscillator for system clock 18-pin DIP package
GENERAL DESCRIPTION
It can use minimal external components to implement three key-switches and four photo-coupler mouse. The USB is specified by the Universal Serial Bus Specification. Block Diagram U S B T r a n s c e iv e r U S B R e c e iv e r U S B In te rfa c (S a C o L o S e r ia l e E n g in e IE ) n d n tro l g ic R e g is te r S e t U S B D + U S B D - U S B T r a n s m itte r H o lte k 8 - b it M ic r o c o n tr o lle r V 3 3 O V o lta g e R e g u la to r O S C 1 O S C 2 C...
