HT82M25B 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT82M25B

3/5-Key USB+PS/2 Optical Mouse Controller

Holtek Semiconductor 

HT82M25X

Pin Description

Pin Name I/O

Description

VSS

¾ Negative power supply, ground

V33O

O 3.3V voltage output

USBD+/CLK I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2

USBD-/DATA I/O USB data minus or PS2 Data, F/W auto-detect USB- for USB, DATA for PS2

RESET

I Chip reset input, low active

NRESET

I/O Reset pin for Agilent sensor IC

DPI_SEL

I

1 (N/C): 500dpi

0 (GND): 1000dpi

SDIO

I/O Serial data for Agilent sensor IC SDIO

SCLK/Z_SEL

Serial data for Agilent sensor IC SCLK

I/O 1 (N/C): z-axis is divided by 2

0 (pull-down): z-axis is divided by 4

RB0, RB1

L, R, M

Click button detection. Input ports with 30kW pull-high resistor.

I Input ports with pull-high resistor. These pads can function as Left, Right, Middle, B4 and B5

button input lines.

Z1, Z2

I Z-axis input supports two kinds of scroller input; optomechanical and mechanical.

LED

I/O LED drive output

VDD

¾ 5V positive power supply

OSC2

O 6MHz OSC output

OSC1

I 6MHz OSC input

Absolute Maximum Ratings

Supply Voltage ..............................VSS-0.3V to VSS+6V

MCU Input Voltage.....................VSS-0.3V to VDD+0.3V

USB Input Voltage ....................VSS-0.3V to V33O+0.3V

Storage Temperature ............................-50°C to 125°C

Operating Temperature...........................-25°C to 70°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those

listed in the specification is not implied and prolonged exposure to extreme conditions may affect device

reliability.

Rev. 1.00

3

May 14, 2007

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