HT6221(2000) 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT6221 Datasheet PDF : 13 Pages
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HT6221/HT6222
Pad Coordinates
Pad No.
1
2
3
4
5
6
7
8
9
10
11
12
X
-41.99
-41.99
-41.99
-41.99
-41.99
-41.99
-41.99
-41.99
-20.95
-14.32
-4.25
24.31
Y
34.43
22.02
15.39
2.98
-5.61
-28.31
-37.83
-46.88
-46.88
-46.88
-46.88
-46.88
Pad No.
13
14
15
16
17
18
19
20
21
22
23
24
X
34.17
41.95
41.95
41.95
41.95
41.95
39.99
28.26
-11.18
-23.16
-29.79
-39.27
Unit: mil
Y
-46.88
-30.26
-13.98
-4.12
12.16
22.02
46.84
46.84
46.84
46.84
46.84
46.84
Pin Description
HT6222
Pin No. Pin Name I/O
1~6
R3~R8
I
7
DOUT
O
8
VDD
¾
9
D7
I
10
X2
O
11
X1
I
12
VSS
¾
13
LED
O
14~21 C8~C1
I/O
22
AIN
I
23~24 R1~R2
I
Internal
Connection
CMOS IN
Pull-low
CMOS OUT
¾
CMOS IN
OSCILLATOR
OSCILLATOR
¾
CMOS OUT
CMOS IN/OUT
Pull-low
CMOS IN
Pull-high
Pull-low
CMOS IN
Pull-low
Description
Row control for keyboard matrix, active high
Serial data output pin, with a 38kHz carrier
Positive power supply, 1.8V~3.5V for normal
operation
Most significant data bit (D7) code setting
455kHz resonator oscillator output
455kHz resonator oscillator input
Negative power supply
Transmission enable indicator output
Column control for keyboard matrix
Low byte address codes (8 bits) scan input
Row control for keyboard matrix, active high
3
March 2, 2000
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