U3761MB

Preliminary Information

TELEFUNKEN Semiconductors

Rev. A2, 23-Apr-97

9 (23)

Function

Configuration

Symbol

SSO44

SDIP40

37

41

R1

R1

PD

Keyboard input

38

42

R2

R2

PD

PD

39

43

R3

R3

PD

PD

40

44

R4

R4

PD

PD

Keyboard Operation

C1

C2

C3

C4

1

2

3

S

M1

R1

4

5

6

M2

R2

7

8

9

A

M3

R3

:/T

0

#

R/P

N

R4

VDD

F1

F2

F3

E

D S: Store function key

D A: Indirect repertory dialing function key (LN 0 to 9)

D R/P: Redial and pause function key

D N: Notice function

D:/T: : and pulse-to-tone key

D M1 to M3: One-touch memory

D F1, F2, F3: Flash keys

Normal Dialing

OFF HOOK

,

D1

,

D2

, ...,

Dn

1.

D1, D2, ..., Dn will be dialed out.

2.

Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits.

3.

If redialing length oversteps 32 digits, the redialing function will be inhibited.

Redialing

OFF HOOK

,

D1

,

D2

, ...,

Dn

BUSY, Come

ON HOOK

,

OFF HOOK

,

R/P

The

R/P key can execute the redial function only as the first key-in after off-hook;

otherwise, it executes the pause function.