W91574DNF中文資料華邦電子數(shù)據(jù)手冊(cè)PDF規(guī)格書

GENERAL DESCRIPTION

The W91570DN series ICs are Si-gate CMOS ICs that provide the signals needed for either pulse or tone dialing. They feature 23 number memories and a 16-digit LCD driver for displaying telephone numbers and calling time. A real time clock is included to display the time of day. The W91570DN series is fabricated using CMOS technology providing good performance in low voltage, low power applications.

FEATURES

? Three by 32 digits for redial, save and mercury memory

? Twenty by 16 digits for one-touch direct or two-touch indirect repertory memory

? Uses 6 x 10 keyboard

? Pause, Pulse-to-tone (*/T) and flash can be stored as a digit in memory

? Minimum tone output duration: 87 mS

? Minimum intertone pause: 87 mS

? Tone/Pulse mode pin selectable

? Make/Break ratio pin selectable

? Dialing rate (10 or 20 ppS) pin selectable

? Pause time (2.0 or 3.6 Sec) selectable by keypad

? Flash break time (100, 300, or 600 mS) selectable by keypad

? Built-in 12 or 16-digit LCD driver (1/4 duty, 1/3 bias) selectable by mask option

? Built-in calling timer from [00:00] to [59:59]

? Uses 3.579545 MHz TV quartz crystal or ceramic resonator

? Uses 32768 Hz crystal as RTC frequency base

? Packaged in 80-pin plastic QFP with RTC

? Provides one-key-redial and auto-redial functions

? Switchable 24-hour clock or 12-hour clock with p.m. mode

? 0 or 9 dialing inhibition pin for PABX systems or long distance dialing lock out

? On-hook debounce: 150 msec in normal mode and 20 msec in lock mode

? Off-hook delay 300 mS in lock mode (i.e. DP will keep low for 300 mS while off hook)

? First key-in delay: 300 msec in lock mode

? MUTE key for speech mute

? Cascade and mixed dialing allowed