Silan

Semiconductors

SC91650/1/2 A/B

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

REV: 1.0

2001.01.15

4

KEYBOARD ASSIGNMENT

C1

C2

C3

C4

C5

R1

12

3

SAVE

EM1

R2

45

6

F

EM2

R3

78

9

A

EM3

R4

*/T

0

#

RD/P

ST

1) */T: In pulse mode, execute P

→T function; In TONE mode, execute * key

2) SAVE: SAVE key.

3) F: Flash key

4) RD/P: Redial key/Pause key

5) ST: Store key

6) EMn: One touch memory key

7) A: Auto key for two touch memory

DIALING SIGNAL OPTION

The resistor connection between selected Row (or Column) and Vss may select most country telecom

specifications (refer to Row and Column pin description). Those options include M/B ratio, Flash time, pause time

…… , as follows.

a): Make/Break ratio:

d): Flash time:

Row1

M/B ratio (%)

Row3

Row4

Flashtime(ms)

NR

40:60

NR

NR

600

R

33:66

NR

R

300

R

NR

93

*100

b): Pause time & P

→T wait time:

R

R

200

*80

Row2

*for SC91652 only

NR

3.6

3.6

R

2.0

1.0

e): Dialing out Pulse number:

Column3

Column4

Pulse number

c): Flash Key function:

NR

NR

n

Column1

Flash key

NR

R

n+1

NR

Reset

0.2/0*

R

NR

10-n

R

Digit

1.0

R

R

reserved

* for flash time = 80ms, 200ms only