W91572DNF Просмотр технического описания (PDF) - Winbond
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W91572DNF Datasheet PDF : 45 Pages
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W91570DN SERIES
Pin Description, continued
SYMBOL PIN NO. I/O
FUNCTION
APSET
ARD
42
I If APSET = VDD or floating, 24-hour clock mode.
If APSET = VSS, 12-hour clock with p.m. mode.
40
I Auto redial function selection.
ARD BREAK PAUSE WAIT INTERVAL REPEAT TIMES
VDD
4 secs 1 sec
25 secs
10
VSS
30 secs 1 sec
30 secs
10
Floating 4 secs 1 sec
-
1
When ARD is left floating, the one-key redial function is
enabled.
KT
7
O The key tone output is a conventional CMOS inverter.
The key tone is generated as any valid key pressed, as the KT
pin generates a 1.2 KHz square wave which keeps on 35 mS;
otherwise, it remain in low state.
TEST,
TEST1,
TEST2 ,
TESTL
NC
5, 8, 39,
41
I For testing only.
10
- No connection.
(for
W91572/574/
W91576/578)
-6-
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