Winbond Electronics Corporation W91541LN
The W91540N series are tone/pulse switchable telephone dialers with 10 memories, keytone or lock function, and handfree dialing control. These chips are fabricated using Winbond's high-performance CMOS technology and thus offer good performance in low-voltage and low-power operations.GENERAL DESCRIPTION
FEATURES
● DTMF/pulse switchable dialer● Two by 32-digit redial and save memory
● Ten by 16 digit two-touch indirect repertory memory
● Pulse-to-tone (*/T) keypad for long distance call operation
● Cascaded dialing
● Uses 5 × 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
● 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
● Dialing rate (10 ppS or 20 ppS) selected by bonding option
● Minimum tone output duration: 93 mS (W91544AN: 87 mS)
● Minimum inte