W91811ALN datasheet(1/26 Pages) WINBOND

Part #	W91811ALN

Description	23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

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Manufacturer	WINBOND [Winbond]

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W91810N SERIES

23-MEMORY TONE/PULSE DIALER WITH

HANDFREE, LOCK AND HOLD FUNCTIONS

Publication Release Date: March 2000

- 1 -

Revision A5

GENERAL DESCRIPTION

The W91810N is a series of tone/pulse switchable telephone dialers with 23 memory, keytone, hold,

lock, mute, volume control and handfree dialing control features. These chips are fabricated using

Winbond's high-performance CMOS technology and thus offer good performance in low-voltage, low-

power operations.

FEATURES

• Tone/pulse switchable dialer

• Two by 32 digits redial and save memory

• Three by 32 digits one-touch direct repertory memory

• Twenty by 32 digits one-touch direct or two-touch indirect repertory memory

• Pulse-to-tone (*/T) keypad for long distance call operation

• Chain dialing

• Uses 6

× 6 or 7 × 7 keyboard

• Easy operation with redial, flash, pause, and */T keypads

• Pause, P

→T (pulse-to-tone) can be stored as a digit in memory

• Dialing rate: 10 or 20 ppS by mask option

• Minimum tone output duration: 93 mS

• Minimum intertone pause: 93 mS

• Pause time: 3.6 sec.

• Flash break time (73 mS, 100 mS, 300 mS, or 600 mS) selectable by keypad; pause time is 1.0 S

• Make/break ratio (2:3 or 1:2) selectable by MODE pin

• Mute key for speech network mute

• No key will be accepted except the "HOLD" key when in the Hold mode

• 4-level volume control by V1 and V2 pin - default value is zero

• Key tone output for valid keypad entry recognition

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• 22, 24 or 28-pin dual-in-line plastic package

• The different dialers in the W91810N series are shown in the following table:

TYPE NO.

PULSE

(ppS)

MEMORY

LOCK

KEY

TONE

HANDFREE

DIALING

VOLUME

CONTROL

PACKAGE

(PINS)

W91810N

10

13 one touch, 10 two touch

-

√

-

22

W91810AN

10

13 one touch, 10 two touch

-

√

-

24

W91810LN

10

13 one touch, 10 two touch

√

-

22

W91810ALN

10

13 one touch, 10 two touch

√

-

√

-

24

W91811AN

10

23 one touch

-

√

28

W91811ALN

10

23 one touch

√

-

√

28

W91812N

20

13 one touch, 10 two touch

-

√

-

22

W91812AN

20

13 one touch, 10 two touch

-

√

-

24

W91813AN

20

23 one touch

-

√

28

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