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W91570DN

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 ×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 ...

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SeekIC No. : 004545293 Detail

W91570DN: 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 ×10 keyboard· Pause, Pulse-to-tone (*/T) a...

W91570DN Data Sheet

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Part Number:
W91570DN
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 ×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
· The functions of the different dialers in the W91570DN series are shown in the following table:


Pinout

Connection Diagram


Specifications

PARAMETER
SYMBOL
RATING
UNIT
DC Supply Voltage
VDD-VSS
-0.3 to +7.0
V
Input/Output Voltage
VIL
VSS -0.3
V
VIH
VDD +0.3
V
VOL
VSS -0.3
V
VOH
VDD +0.3
V
Power Dissipation
PD
120
mW
Operation Temperature
TOPR
-20 to +70
°C
Storage Temperature
TSTG
-55 to +150
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.


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.




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