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W91520N

Part Number	W91520N
Manufacturer	Winbond
Description	TONE/PULSE DIALER
Published	Feb 1, 2018
Detailed Description	W91520N SERIES TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS GENERAL DESCRIPTION The W91520N series are Si-gate CM...
Datasheet	W91520N PDF File

Overview

W91520N SERIES TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTIONS GENERAL DESCRIPTION The W91520N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse dialing.
The W91520N series provide one-key redial, handfree dialing, hold, save, and redial functions.
FEATURES • DTMF/pulse switchable dialer • Two by 32-digit redial and save memory • Pulse-to-tone (*/T) keypad for long distance call operation • Uses 5 × 5 keyboard • Easy operation with redial, flash, pause, and */T keypads • Pause, pulse-to-tone (*/T) can be stored as a digit in memory • On-hook debounce time: 150 mS • Dialing rate (10 ppS, or 20 ppS) selectable by bonding option • Minimum tone output duration: 93 msec.
• Minimum intertone pause: 93 msec.
• Flash break time (73, 100, 300, 600 msec.
) selectable by keypad; pause time is 1.
0 sec.
• On-chip power-on reset • Uses 3.
579545 MHz crystal or ceramic resonator • Packaged in 18 or 20-pin plastic DIP • The different d...

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