W91312A
TONE/PULSE DIALER WITH REDIAL FUNCTION

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Datasheet

Size: 211.33KB
Page: 12
PDF: W91312A.pdf
  • Description:
    TONE/PULSE DIALER WITH REDIAL FUNCTION
  • MFG:
    WINBOND [Winbond]
 

Abstract


W91310 SERIES
TONE/PULSE DIALER WITH
REDIAL FUNCTION
Publication Release Date: January 1995
- 1 - Revision A3
GENERAL DESCRIPTION
The W91310 series are monolithic ICs that provide the necessary signals for either pulse or tone
dialing. The W91310 series feature a redial memory.
FEATURES
? DTMF/Pulse switchable dialer
? 32 digits for redial memory
? Pulse-to-tone (P →T) keypad for long distance call operation
? Break/Make ratio is selectable by pin option
? Uses 4 × 4 keyboard
? Easy operation with redial, flash, pause, and P →T keypads
? Flash, pause, P →T (pulse-to-tone) can be stored as a digit in memory
? Minimum tone output duration: 100 mS
? Minimum intertone pause: 100 mS
? On-chip power-on reset
? Uses 3.579545 MHz crystal or ceramic resonator
? Packaged in 18-pin plastic DIP
? The different dialers in the W91310 series are shown in the following table:
TYPE NO. PULSE (ppS) FLASH (mS) FLASH PAUSE (mS) PAUSE (S)
W91312/A 10/20 600/300 600/300 2.0
W91314/A 10/20 73/100 140/100 3.6
W91316 10/20 600 600 3.6

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