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HT95C20P датащи(PDF) 19 Page - Holtek Semiconductor Inc

номер детали HT95C20P
подробное описание детали  8-Bit LCD Type Phone Controller MCU
PDF  42 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
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HT95C20P датащи(HTML) 19 Page - Holtek Semiconductor Inc

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HT95L100/10P
Rev. 0.10
19
October 1, 2002
Preliminary
Tone frequency
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: register DTMFD[21H]
Low Group
High Group
DTMF Output
DTMF
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
0010000
0
770
0100000
0
852
1000000
0
941
0000000
1
1209
0000001
0
1336
0000010
0
1477
0000100
0
1633
Writing other values to TR4~TR1, TC4~TC1 may generate an unpredictable tone.



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