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HT95R34 датащи(PDF) 35 Page - Holtek Semiconductor Inc

номер детали HT95R34
подробное описание детали  I/O Type Phone 8-bit MCU with DTMF Receiver
PDF  59 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT95R34 датащи(HTML) 35 Page - Holtek Semiconductor Inc

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HT95R34
Rev. 1.10
35
February 18, 2009
Output Frequency (Hz)
% Error
Specified
Actual
697
699
+0.29%
770
766
-0.52%
852
847
-0.59%
941
948
+0.74%
1209
1215
+0.50%
1336
1332
-0.30%
1477
1472
-0.34%
% Error does not contain the crystal frequency shift
DTMF Frequency Selection Table
Low Group
High Group
DTMF Output
Code
TR4
TR3
TR2
TR1
TC4
TC3
TC2
TC1
Low
High
0001000
1
697
1209
1
0001001
0
697
1336
2
0001010
0
697
1477
3
0001100
0
697
1633
A
0010000
1
770
1209
4
0010001
0
770
1336
5
0010010
0
770
1477
6
0010100
0
770
1633
B
0100000
1
852
1209
7
0100001
0
852
1336
8
0100010
0
852
1477
9
0100100
0
852
1633
C
1000000
1
941
1209
*
1000001
0
941
1336
0
1000010
0
941
1477
#
1000100
0
941
1633
D
Single tone for testing only
0001000
0
697
x
x
0010000
0
770
x
x
0100000
0
852
x
x
1000000
0
941
x
x
0000000
1
x
1209
x
0000001
0
x
1336
x
0000010
0
x
1477
x
0000100
0
x
1633
x
Writing other values to TR4~TR1, TC4~TC1 may generate an unpredictable tone.
1 / 2 V D D
T O N E = 1
A l l t h e t i m i n g o f t h e T O N E = 1 a n d T O N E = 0 a r e d e t e r m i n e d b y s o f t w a r e
T O N E = 0
T O N E = 1
T O N E = 0
T O N E = 1
T O N E = 0
D _ P D W N = 0
D _ P D W N = 1
DTMF Output



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