HT9315AL datasheet(7/27 Pages) HOLTEK

7 / 27 page

HT9315 Series

Rev. 1.20

October 1, 2002

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

Tone Name

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%

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.

All the resistors are 330k

W. The resistor option functions

and the default specifications without option resistors

are listed below.

Option

Resistor

Option

Function

Default

(No Resistor)

RK12

Make/Break Ratio

Selection

40:60

RK13

Flash Function and

Flash Time Selection

Flash= control function

Flash time= 600ms

RK14

RK21

Pause & P

®T

Duration Selection

TP= 3.6s

TP®T= 3.6s

RK31

Pulse Number

Selection or IDD

Lock Selection

N or Keyboard

Operated Lock

RK41

RK51

Keypad Form

FormA

M/B ratio selection table

RK12

M/B Ratio (%)

40:60

Yes

33.3:66.6

Flash function/time (duration) selection table

· HT9315x

RK13

RK14

Flash

Function

Flash

Time (TF)

Control

600ms

Yes

Digit

600ms

Yes

Digit

98ms

Yes

Digit

300ms

· HT9315xL

RK13

RK14

Flash

Function

Flash

Time (TF)

Control

600ms

Yes

Control

600ms

Yes

Control

98ms

Yes

Control

300ms

Pause and P

®T duration selection table

RK21

TP (sec)

TP®T (sec)

3.6

Yes

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

Yes

N+1

Yes

-N

Yes

K 5 1

K 1 4

K 1 2

K 2 1

K 3 1

K 4 1

C 1

C 2

C 3

C 4

K 1 3

R 1

R 2

R 3

R 4

C 5

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