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W91F820N

Features: ` Tone/pulse switchable dialer` Two by 32 digits redial and save memory` Three by 32 digits one-touch direct repertory flash memory` Ten by 32 digits one-touch direct or two-touch indirect repertory flash memory` The read-write times: 104` Pulse-to-tone (*/T) keypad for long distance cal...

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SeekIC No. : 004545305 Detail

W91F820N: Features: ` Tone/pulse switchable dialer` Two by 32 digits redial and save memory` Three by 32 digits one-touch direct repertory flash memory` Ten by 32 digits one-touch direct or two-touch indirect...

W91F820N Data Sheet

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Part Number:
W91F820N
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/20

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Product Details

Description



Features:

` Tone/pulse switchable dialer
` Two by 32 digits redial and save memory
` Three by 32 digits one-touch direct repertory flash memory
` Ten by 32 digits one-touch direct or two-touch indirect repertory flash memory
` The read-write times: 104
` Pulse-to-tone (*/T) keypad for long distance call operation
` Chain dialing
` Uses 5* 5 keyboard
` Easy operation with redial, flash, pause, and */T keypads
` Pause, PT (pulse-to-tone) can be stored as a digit in memory
` Dialing rate:10 ppS or 20 pps by mask option
` Minimum tone output duration: 93 mS
` Minimum intertone pause: 93 mS
` Pause time: 3.6 sec.
` Flash break time (73 mS, 100 mS, 300 mS, or 600 mS) selectable by keypad; pause time is 1.0 S
` Make/break ratio (2:3 or 1:2) selectable by MODE pin
` Mute key for speech network mute
` No key will be accepted except the "HOLD" key when in the Hold mode
` Key tone output for valid keypad entry recognition
` On-chip power-on reset
` Uses 3.579545 MHz crystal or ceramic resonator
` 20-pin 300 mil, or 22-pin 400 mil dual-in-line plastic package
` The different dialers in the W91F820N 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 W91F820N is a series of tone/pulse switchable telephone dialers with 13-flash memory, keytone, hold, lock, and handfree dialing control features. W91F820N is fabricated using Winbond's highperformance CMOS technology and thus offer good performance in low-voltage, low-power operations.




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