鈥?/div>
DTMF/Pulse switchable dialer
32-digit LNB (last number buffer) memory
32-digit mercury memory
16-digit
脳
3 one-touch direct repertory memory
16-digit
脳
10 direct repertory memory
Uses 7
脳
5 keyboard
Flash time: 98 mS, 305 mS, or 600 mS (selectable by keypad option)
Minimum tone output duration: 93 mS
Minimum intertone pause: 93 mS
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 22, 24, or 28-pin plastic DIP
The different dialers in the W91473 series are shown in the following table:
TYPE NO.
W91473
W91473L
W91473A
W91473AL
W91473B
W91473BL
W91473C
W91473CL
W91473D
W91473DL
PULSE
(ppS)
10
10
10
10
10/20
10/20
10/20
10/20
10
10
MEMORY
14
14
14
14
14
14
14
14
14
14
MERCURY
MEMORY
Yes
-
Yes
-
Yes
Yes
Save Memory
Save Memory
Save Memory
Save Memory
HOLD
Yes
-
Yes
-
Yes
Yes
Yes
Yes
-
-
HANDFREE
-
-
Yes
Yes
Yes
Yes
Yes
Yes
-
-
LOCK
-
Yes
-
Yes
-
Yes
-
Yes
-
Yes
PACKAGE
22
22
24
24
28
28
28
28
22
22
-1-
Publication Release Date: February 1995
Revision A3