HT82M91A 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT82M91A Datasheet PDF : 6 Pages
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HT82M91A
Pin Assignment
VSS
V 33O
USBD+
USBD-
RESET
X1
X2
Y1
Y2
1
18
2
17
3
16
4
15
5
14
6
13
7
12
8
11
9
10
H T82M 91A
1 8 D IP
O SC1
O SC2
VDD
LE D
M
R
L
Z2
Z1
Pin Description
Pin No. Pin Name I/O
Description
USB Interface (2 pins)
3
USBD+
I/O USB data plus
4
USBD-
I/O USB data minus
General purpose I/O (9 pins)
6, 7
X1, X2
I
X-axis photo input with built-in Holtek's special dynamic photo in-
put resistor
8, 9
Y1, Y2
I
Y-axis photo input with built-in Holtek's special dynamic photo in-
put resistor
10, 11 Z1, Z2
I
Z-axis input supports two kinds of scroller input; optomechanical
and mechanical
12, 13,
14
L, R, M
I
These pins are input port with pull-high resistor. These pads can
function as Left, Right and Middle button input lines.
Miscellaneous (7 pins)
1
VSS
¾ Negative power supply, ground
2
V33O
O 3.3V voltage output
5
RESET
I Chip reset input, low active
15
LED
I/O Drives LED output
16
VDD
¾ 5V positive power supply
17
OSC2
O 6MHz OSC output
18
OSC1
I 6MHz OSC input
2
January 28, 2000
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