參數(shù)資料
型號: HT9170D
廠商: Holtek Semiconductor Inc.
英文描述: DTMF Receiver
中文描述: 雙音多頻接收器
文件頁數(shù): 10/12頁
文件大小: 124K
代理商: HT9170D
HT9170
10
December 20, 1999
DTMF data output table
Low Group (Hz)
High Group (Hz)
Digit
OE
D3
D2
D1
D0
697
1209
1
H
L
L
L
H
697
1336
2
H
L
L
H
L
697
1477
3
H
L
L
H
H
770
1209
4
H
L
H
L
L
770
1336
5
H
L
H
L
H
770
1477
6
H
L
H
H
L
852
1209
7
H
L
H
H
H
852
1336
8
H
H
L
L
L
852
1477
9
H
H
L
L
H
941
1336
0
H
H
L
H
L
941
1209
*
H
H
L
H
H
941
1477
#
H
H
H
L
L
697
1633
A
H
H
H
L
H
770
1633
B
H
H
H
H
L
852
1633
C
H
H
H
H
H
941
1633
D
H
L
L
L
L
ANY
L
Z
Z
Z
Z
Z: High impedance
Data output
The data outputs (D0~D3) are tristate outputs. When OE input becomes low, the data outputs
(D0~D3) are high impedance.
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