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EM91240AP Datasheet(PDF) 2 Page - ELAN Microelectronics Corp

Part # EM91240AP
Description  TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM91240AP Datasheet(HTML) 2 Page - ELAN Microelectronics Corp

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EM91240 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
2
* This specification are subject to be changed without notice.
10.1.1997
FUNCTIONAL BLOCK DIAGRAM
EM91240
Pin Assignment
COL5
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
VSS
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
PM
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
EM91240AP
COL5
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
VSS
HFI
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PM
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
HFO
EM91240BP
NC
COL5
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
VSS
HFI
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
SDO
PM
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
HFO
EM91240CK
ROW1
ROW2
ROW3
ROW4
COL1
1
4
7
*
COL2
2
5
8
0
COL3
3
6
9
#
COL4/KT
SAVE
F
A
RD/P
COL5
P
→T
ST
ROW1
ROW2
ROW3
ROW4
COL1
1
4
7
*/T
COL2
2
5
8
0
COL3
3
6
9
#
COL4/KT
SAVE
F
A
RD/P
COL5
ST
Keyboard Arrangement
Type A
Type B
COL1
COL2
COL3
COL4/KT
COL5
XIN
XOUT
ROW1
ROW4
HFO PM
XMUTE
Keyboard
interface
(column)
Oscillator
Keyboard
interface
(Row)
Output circuit
Memory
(Melody)
Timing/Control circuit
Input circuit
Pulse
generator
latch
&
decoder
D/A
converter
Row/Column
programming counter
DTMF
PO
HKS
HFI
VDD
VDD
SDO


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