HT9315 Ver la hoja de datos (PDF) - Holtek Semiconductor
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HT9315 Datasheet PDF : 27 Pages
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HT9315 Series
Functional Description
Keyboard matrix
C1~C5 and R1~R4 form a keyboard matrix. Together
with a standard 4´5 keyboard, the keyboard matrix is
used for dialing entries. In addition, the keyboard ma-
trix provides resistor option for different dialing specifi-
cation selections. The keyboard arrangement for each
of the HT9315 series are shown in the Keyboard Infor-
mation.
Tone frequency
Output Frequency (Hz)
Tone Name
Specified Actual
R1
697
699
% Error
+0.29%
R2
770
766
-0.52%
R3
852
847
-0.59%
R4
941
948
+0.74%
C1
1209
1215
+0.50%
C2
1336
1332
-0.30%
C3
1477
1472
-0.34%
Note:% Error does not contain the crystal frequency drift
Dialing specification selection
Various dialing specifications can be selected by adding
resistors across keyboard matrix pins. The allowable
option resistor connections are shown on the table.
C1
C2
C3
C4
C5
R1
R K 21
R K 31
R K 41
R K 51
R2
R K 12
R3
R K 13
R4
R K 14
All the resistors are 330kW. The resistor option functions
and the default specifications without option resistors
are listed below.
Option
Resistor
Option
Function
Default
(No Resistor)
RK12
Make/Break
Selection
Ratio 40:60
RK13
RK14
RK21
RK31
RK41
Flash Function and Flash= control function
Flash Time Selection Flash time= 600ms
Pause & P®T
Duration Selection
Pulse Number
Selection or IDD
Lock Selection
TP= 3.6s
TP®T= 3.6s
N or Keyboard
Operated Lock
RK51 Keypad Form
FormA
M/B ratio selection table
RK12
No
Yes
M/B Ratio (%)
40:60
33.3:66.6
Flash function/time (duration) selection table
· HT9315x
RK13
No
RK14
No
Flash
Function
Control
Flash
Time (TF)
600ms
No
Yes
Digit
600ms
Yes
No
Digit
98ms
Yes
Yes
Digit
300ms
· HT9315xL
RK13
No
No
Yes
Yes
RK14
No
Yes
No
Yes
Flash
Function
Control
Control
Control
Control
Flash
Time (TF)
600ms
600ms
98ms
300ms
Pause and P®T duration selection table
RK21
TP (sec)
TP®T (sec)
No
3.6
3.6
Yes
2
1
Pulse number selection table
· This table shows pulse number selections for
HT9315x. The table for HT9315xL is used to select
IDD lock function.
RK31
RK41
Pulse
Number
No
No
N
No
Yes
N+1
Yes
No
10-N
Yes
Yes
¾
Rev. 1.20
7
October 1, 2002
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