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W91820N Datasheet (PDF) - Winbond

W91820N Datasheet PDF - Winbond
Part # W91820N
Download  W91820N Download

File Size   260.9 Kbytes
Page   22 Pages
Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond
Description 13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

W91820N Datasheet (PDF)

Go To PDF Page Download Datasheet
W91820N Datasheet PDF - Winbond

Part # W91820N
Download  W91820N Click to download

File Size   260.9 Kbytes
Page   22 Pages
Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond
Description 13-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

W91820N Datasheet (HTML) - Winbond

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W91820N Product details

GENERAL DESCRIPTION
The W91820N is a series of tone/pulse switchable telephone dialers with 13 memory, keytone, hold, lock, and handfree dialing control features. These chips are fabricated using Winbonds 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
• Ten by 32 digits two-touch indirect repertory memory
• Pulse-to-tone (*/T) keypad for long distance call operation
• Chain dialing
• Uses 5 x 5 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 ppS or 20 ppS by mask option
• Minimum tone output duration: 93 mS (unless W91824N/AN is 87 mS)
• Minimum intertone pause: 93 mS (unless W91824N/AN is 87mS)
• Pause time: 3.6 sec. (unless W91824N/AN is 2.0 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
• Key tone output for valid keypad entry recognition
• On-chip power-on reset
• Uses 3.579545 MHz crystal or ceramic resonator
• 20, or 22-pin dual-in-line plastic package




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