W9145 datasheet(6/18 Pages) WINBOND | 15-MEMORY TONE/PULSE DIALER WITH LOCK AND HANDFREE FUNCTION

6 page

W9145 SERIES

- 6 -

FUNCTIONAL DESCRIPTION

Keyboard Operation

/C5

MUTE

*/T

SAVE

• MUTE: Mute key

• CD: Call Disconnect

• */T: * & P

→T key

• RD: One-key Redial

• S: Store

• A: Auto dialing

• P: Pause

• M1 to M3: Memory 1 to 3

• SAVE: Save Memory

• F1, F2, F3: 98/305/600 mS

Normal Dialing

OFF HOOK

(or

ON HOOK

HFI ¡õ

, ...,

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

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

Redialing

OFF HOOK

(or

ON HOOK

HFI ¡õ

, ...,

, BUSY

a. The one-key redialing function timing diagram is shown in Figure 4.

b. Once dialing of

is finished, pressing

key will cause the pulse output pin

to go low for 2.2 seconds break time and 600 mS pause will automatically be added.

c. If the pulses of the dialed number

have

not

finished,

the

key will be ignored.

OFF HOOK

, ...,

BUSY, Come

ON HOOK

OFF HOOK

(or

ON HOOK

HFI ¡õ

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