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W91473D Datasheet(PDF) 6 Page - Winbond

Part # W91473D
Description  14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION
Download  20 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W91473D Datasheet(HTML) 6 Page - Winbond

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W91473 SERIES
- 6 -
BLOCK DIAGRAM
HKS
COLUMN
ROW
DP
DTMF
READ/WRITE
COUNTER
RAM
LOCATION
LATCH
D/A CONVERTER
T/P MUTE
MODE
HFO
LOCK
KT
HFI
DRS
(R1 to R5)
K
E
Y
B
O
A
R
D
I
N
T
E
R
F
A
C
E
(C1 to C7)
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
C
O
N
T
R
O
L
L
O
G
I
C
P
U
L
S
E
C
O
N
T
R
O
L
L
O
G
I
C
XT XT
SYSTEM CLOCK
GENERATOR
HPM MUTE
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1
C2
C3
C4
C5
C6
C7
1
2
3
S
M00
M05
EM1
R1
4
5
6
M01
M06
EM2
R2
7
8
9
CLR
M02
M07
EM3
R3
*/T
0
#
R/P
M03
M08
H
R4
F1
F2
F3
R
M04
M09
*MER
R5
Note:
*MER
location in W91473C/CL or W91473D/DL is SAVE memory.
• S:Store function key


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