ht82m25a Holtek Semiconductor Inc., ht82m25a Datasheet - Page 3

• Manufacturer Part Number: ht82m25a
• Description: Ht82m25x -- 3/5-key Usb+ps/2 Optical Mouse Controller
• Manufacturer: Holtek Semiconductor Inc.

Pin Description
Absolute Maximum Ratings
Supply Voltage ..............................V
MCU Input Voltage.....................V
USB Input Voltage ....................V
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
Rev. 1.00
VSS
V33O
USBD+/CLK
USBD DATA
RESET
NRESET
DPI_SEL
SDIO
SCLK/Z_SEL
RB0, RB1
L, R, M
Z1, Z2
LED
VDD
OSC2
OSC1
Pin Name
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.
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I
I
I
I
I
Negative power supply, ground
3.3V voltage output
USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2
USB data minus or PS2 Data, F/W auto-detect USB for USB, DATA for PS2
Chip reset input, low active
Reset pin for Agilent sensor IC
1 (N/C): 500dpi
0 (GND): 1000dpi
Serial data for Agilent sensor IC SDIO
Serial data for Agilent sensor IC SCLK
1 (N/C): z-axis is divided by 2
0 (pull-down): z-axis is divided by 4
Click button detection. Input ports with 30k pull-high resistor.
Input ports with pull-high resistor. These pads can function as Left, Right, Middle, B4 and B5
button input lines.
Z-axis input supports two kinds of scroller input; optomechanical and mechanical.
LED drive output
5V positive power supply
6MHz OSC output
6MHz OSC input
SS
SS
SS
0.3V to V
0.3V to V
0.3V to V
33O
DD
SS
+0.3V
+0.3V
+6V
3
Storage Temperature ............................ 50 C to 125 C
Operating Temperature........................... 25 C to 70 C
Description
HT82M25X
May 14, 2007