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W91620

Features: ` DTMF/Pulse switchable dialer` 32-digit redial memory` Two-stage redial function` Ten by 32 digit two-touch indirect repertory memory` Mixed dialing, cascade dialing allowed` Pulse-to-tone (PT) keypad for long distance call operation` Easy operation with redial, flash, pause and PT keyp...

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SeekIC No. : 004545297 Detail

W91620: Features: ` DTMF/Pulse switchable dialer` 32-digit redial memory` Two-stage redial function` Ten by 32 digit two-touch indirect repertory memory` Mixed dialing, cascade dialing allowed` Pulse-to-ton...

W91620 Data Sheet

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Part Number:
W91620
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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Upload time: 2025/12/26

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Product Details

Description



Features:

` DTMF/Pulse switchable dialer
` 32-digit redial memory
` Two-stage redial function
` Ten by 32 digit two-touch indirect repertory memory
` Mixed dialing, cascade dialing allowed
` Pulse-to-tone (PT) keypad for long distance call operation
` Easy operation with redial, flash, pause and PT keypads
` Pause, pulse-to-tone (PT) can be stored as a digit in memory
` Tone output duration: as long as key is depressed or 90 mS minimum
` Minimum intertone pause: 90 mS
` Flash time: 100 mS
` Uses 4 ´ 5 keyboard
` On-chip power-on reset
` Uses 3.579545 MHz crystal or ceramic resonator
` Packaged in 18-pin DIP
` The different dialers in the W91620 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 W91620 series are Si-gate CMOS ICs that provide the signals needed for either pulse or tone dialing. It features a ten-channel, 32-digit automatic dialing memory.




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