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W91550DN

Features: · Tone/pulse switchable dialer· Two by 32-digit redial and save memory (or mercury memory)· Three by 16-digit one-touch direct repertory memory· Ten by 16-digit two-touch indirect repertory memory· Memory check function· Save/mercury function selected by pin option· Typical interdigit pa...

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SeekIC No. : 004545289 Detail

W91550DN: Features: · Tone/pulse switchable dialer· Two by 32-digit redial and save memory (or mercury memory)· Three by 16-digit one-touch direct repertory memory· Ten by 16-digit two-touch indirect repertor...

W91550DN Data Sheet

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Part Number:
W91550DN
Supply Ability:
5000

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

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Product Details

Description



Features:

· Tone/pulse switchable dialer
· Two by 32-digit redial and save memory (or mercury memory)
· Three by 16-digit one-touch direct repertory memory
· Ten by 16-digit two-touch indirect repertory memory
· Memory check function
· Save/mercury function selected by pin option
· Typical interdigit pause (IDP): 800 msec (10 ppS) in pulse mode
· Uses 4 × 7 keyboard
· Mute key for secrecy control
· Minimum tone output duration/inter-tone pause: 87/87 mS
· Flash pause time: 1.2 sec.
· Flash break time (98, 300, 600 msec) selectable by keypad
· Pause time (2.0, 3.6, 4.0 sec.) selectable by mask option
· Pulse-to-tone (*/T) keypad for long distance call operation
· 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
· Make/break ratio selected by pin option
· Built-in 10-digit LCD driver for telephone number display and calling time (1/3 duty, 1/2 bias)
· Built-in calling time from (00:00) to (59:59)
· On-chip power-on reset and clear LCD
· On hook debounce: 250 msec in normal mode (20 msec in lock mode)
· First key-in delay: 300 msec in lock mode
· Uses 3.579545 MHz crystal or ceramic resonator
· Packaged in 64-pin QFP
· The different dialers in the W91550DN 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 W91550DN series are Si-gate CMOS IC tone/pulse switchable dialers containing 13 number memories and a 10-digit LCD driver for displaying telephone numbers and calling time, including a 16-digit ×3 one-touch memory, 16-digit ´ 10 two-touch memory dialing, and 32-digit×2 redial and save memory. W91550DN also provide a secrecy key, flash, two-way handfree dialing, one-key redial, hold and lock functions.




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