HT82M21A 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT82M21A Datasheet PDF : 6 Pages
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HT82M21A
Pin Assignment
VSS
V 33O
U S B D + /C L K
U S B D -/D A T A
RESET
S E L1
S D IO
S C LK
S E L0
1
18
2
17
3
16
4
15
5
14
6
13
7
12
8
11
9
10
H T82M 21A
1 8 D IP -A
O SC1
O SC2
VDD
LE D
M
R
L
Z2
Z1
Pin Description
Pin No. Pin Name
1
VSS
2
V33O
3
USBD+/CLK
4
USBD-/DATA
5
RESET
6
SEL1
9
SEL0
7
SDIO
8
SCLK
10, 11 Z1, Z2
12, 13, 14 L, R, M
15
LED
16
VDD
17
OSC2
18
OSC1
I/O
Description
¾ Negative power supply, ground
O 3.3V voltage output
I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2
I/O USB data minus or PS2 Data, F/W auto-detect USB- for USB, DATA for PS2
I Chip reset input, low active
Configuration selections
SEL1=0: Z-axis is divided by 2 (default)
SEL1=1: Z-axis is divided by 4
For ADNS 2051:
I SEL0=0: 800DPI (default)
SEL0=1: 400DPI
For ADNS 2610/2620:
SEL0=0, 400DPI (default)
SEL0=1, 800DPI-by firmware
I/O Serial data for Agilent sensor IC SDIO
I Serial data for Agilent sensor IC SCLK
I Z-axis input supports two kinds of scroller input; optomechanical and mechanical.
I Input ports with pull-high resistor. These pads can function as Left, Right, Middle.
I/O Drives LED output
¾ 5V positive power supply
O 6MHz OSC output
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 reliabil-
ity.
Rev. 1.40
2
September 15, 2005
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