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W91440N 데이터 시트보기 (PDF) - Winbond
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W91440N
10-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION
Winbond
W91440N Datasheet PDF : 14 Pages
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W91440N SERIES
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
DC Supply Voltage
V
DD
−
V
SS
-0.3 to +7.0
V
V
IL
V
SS
−
0.3
V
Input/Output Voltage
V
IH
V
DD
+0.3
V
V
OL
V
SS
−
0.3
V
V
OH
V
DD
+0.3
V
Power Dissipation
P
D
120
mW
Operation Temperature
T
OPR
-20 to +70
°
C
Storage Temperature
T
STG
-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.
DC CHARACTERISTICS
(V
DD
−
V
SS
= 2.5V, F
OSC.
= 3.579545 MHz, T
A
= 25
°
C, all outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
Operating Voltage
V
DD
-
Operating Current
I
OP
Tone, Unloaded
Pulse, Unloaded
Standby Current
I
SB
HKS = V
SS
, No load &
No key entry
Memory Retention
Current
I
MR
HKS = V
DD
,
V
DD
= 1.0V
DTMF Output Voltage
V
TO
Row group,
R
L
= 5 K
Ω
Pre-emphasis
Col/Row,
V
DD
= 2.0 to 5.5V
DTMF Distortion
THD
R
L
= 5 K
Ω
,
V
DD
= 2.0 to 5.5V
DTMF Output DC Level
V
TDC
R
L
= 5 K
Ω
,
V
DD
= 2.0 to 5.5V
DTMF Output Sink
Current
I
TL
V
TO
= 0.5V
MIN.
2.0
-
-
-
TYP.
-
0.4
0.2
-
MAX.
5.5
0.60
0.40
15
-
-
0.2
130 150 170
1
2
3
-
-30 -23
1.0
-
3.0
0.2
-
-
UNIT
V
mA
µ
A
µ
A
mVrms
dB
dB
V
mA
Publication Release Date: May 1997
-7-
Revision A3
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