HT6221A 데이터 시트보기 (PDF) - Holtek Semiconductor
부품명
상세내역
제조사
HT6221A Datasheet PDF : 19 Pages
| |||
HT6220A/HT6221A/HT6221B/HT6222A
Pin Assignment
R3 1
R4 2
R5 3
R6 4
DOUT 5
VDD 6
D7 7
VSS 8
16 R 2
15 R 1
1 4 A IN
13 C 1
12 C 2
11 C 3
10 C 4
9 C5
H T6220A
1 6 N S O P -A
R1 1
R2 2
R3 3
R4 4
DOUT 5
VDD 6
D7 7
NC 8
NC 9
V S S 10
2 0 A IN
19 C 1
18 C 2
17 C 3
16 C 4
15 C 5
14 C 6
13 C 7
12 C 8
11 LE D
H T6221A
2 0 S O P -A
R1 1
R2 2
R3 3
R4 4
DOUT 5
VDD 6
D7 7
R5 8
R6 9
V S S 10
2 0 A IN
19 C 1
18 C 2
17 C 3
16 C 4
15 C 5
14 C 6
13 C 7
12 C 8
11 LE D
H T6221B
2 0 S O P -A
R3 1
R4 2
R5 3
R6 4
R7 5
R8 6
DOUT 7
VDD 8
D7 9
N C 10
N C 11
V S S 12
24 R 2
23 R 1
2 2 A IN
21 C 1
20 C 2
19 C 3
18 C 4
17 C 5
16 C 6
15 C 7
14 C 8
13 LE D
H T6222A
2 4 S O P -A
Pin Description
HT6222A
Pin No. Pin Name I/O Internal Connection
Description
1~6
R3~R8
I
CMOS IN, Pull-low Row control for keyboard matrix, active high
7
DOUT
O
NMOS OUT
Serial data output pin, with a 38kHz carrier
8
VDD
¾
¾
Positive power supply, 2.0V~3.6V for normal operation
9
D7
I
CMOS IN
Most significant data bit (D7) code setting
10, 11 NC
¾
¾
No connection
12
VSS
¾
¾
Negative power supply, ground
13
LED
O
CMOS OUT
Transmission enable indicator output
14~21 C8~C1 I/O CMOS IN/OUT, Pull-low Column control for keyboard matrix
22
AIN
I
CMOS IN, Pull-high
Pull-low
Low byte address codes (8 bits) scan input
23~24 R1~R2
I
CMOS IN, Pull-low Row control for keyboard matrix, active high
Approximate Internal Connection Circuits
C M O S IN /O U T
V DD
C M O S IN /O U T
P u ll- lo w
C M O S IN
P u ll- lo w
C M O S IN
CM OS OUT
V DD
NM OS OUT
Rev. 1.10
2
June 1, 2010
Share Link: 