ht82m91a Holtek Semiconductor Inc., ht82m91a Datasheet

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ht82m91a

Manufacturer Part Number
ht82m91a
Description
3d Usb Mouse Semiconductor Inc
Manufacturer
Holtek Semiconductor Inc.
Datasheet
Features
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General Description
HT82M91A is a 3D mouse encoder chip espe-
cially designed for USB applications. The
HT82M91A can support the USB Standard Re-
quest as well as HID Class Request version 1.0.
It can be briefly described as a Holtek 8-bit mC
Block Diagram
Complete Universal Serial Bus specifica-
tion 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 in-
put (optomechanical and mechanical)
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with an on-chip USB interface logic. 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.
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
3D USB Mouse
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HT82M91A
January 28, 2000

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ht82m91a Summary of contents

Page 1

... Z axis can support two kinds of scroller in- put (optomechanical and mechanical) General Description HT82M91A mouse encoder chip espe- cially designed for USB applications. The HT82M91A can support the USB Standard Re- quest as well as HID Class Request version 1.0. It can be briefly described as a Holtek 8-bit mC ...

Page 2

... Negative power supply, ground ¾ 2 V33O O 3.3V voltage output 5 RESET I Chip reset input, low active 15 LED I/O Drives LED output 16 VDD 5V positive power supply ¾ 17 OSC2 O 6MHz OSC output 18 OSC1 I 6MHz OSC input - Description 2 HT82M91A January 28, 2000 ...

Page 3

... No load, system Halt ¾ ¾ 5V 3.5 ¾ ¾ 5V 3.5 ¾ 3.3V 2.8 ¾ ¾ V =0.5V 5V ¾ =4.5V ¾ =4.5V 5V ¾ HT82M91A Ta=25°C Typ. Max. Unit 5.5 V ¾ ¾ 250 ¾ mA 1.0 V ¾ ¾ 1.8 V ¾ ¾ 3.6 V ¾ 3.6 V ¾ ¾ ¾ ...

Page 4

... SYS SYS Test Conditions Min. Typ. Max. V Conditions 6000 ¾ 93.75 125 156.25 ¾ ¾ 768 1024 ¾ ¾ 10 ¾ ¾ ¾ Power-up or wake-up 1024 ¾ ¾ form Halt 4 HT82M91A Ta=25°C Unit kHz ¾ ms 1280 ms ms ¾ t ¾ SYS January 28, 2000 ...

Page 5

... Application Circuits HT82M91A - January 28, 2000 W ...

Page 6

... Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. HT82M91A 6 January 28, 2000 ...

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