W91310 Datasheet, PDF (1/12 Pages) Winbond – TONE/PULSE DIALER WITH REDIAL FUNCTION

W91310 SERIES
TONE/PULSE DIALER WITH
REDIAL FUNCTION
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)
W91312/A
W91314/A
W91316
10/20
10/20
10/20
600/300
73/100
600
600/300
140/100
600
PAUSE (S)
2.0
3.6
3.6
Publication Release Date: January 1995
-1-
Revision A3