EM91215 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
EM91215
Pin Assignment
EM91215BP
EM91215AP
1
2
20
19
18
17
16
15
14
13
12
11
COL5
COL4/KT
COL3
COL2
COL1
XIN
PM
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
COL5
COL4/KT
COL3
PM
PO
PO
3
ROW4
ROW3
ROW2
ROW1
HKS
ROW4
ROW3
ROW2
ROW1
HKS
4
COL2
5
COL1
6
XIN
7
XOUT
XMUTE
VSS
XOUT
XMUTE
VSS
8
VDD
DTMF
HFO
VDD
DTMF
9
10
HFI
EM91215CK
ROW6
COL5
COL4/KT
COL3
COL2
COL1
XIN
1
2
22
21
20
19
18
17
16
15
14
13
12
ROW5/SDO
PM
3
PO
4
ROW4
ROW3
ROW2
ROW1
HKS
5
6
7
XOUT
XMUTE
VSS
8
9
VDD
10
11
DTMF
HFO
HFI
Keyboard Arrangement
Type A
Type B
COL1
1
COL2
COL3
COL4/KT
SAVE
F
COL5
EM1
EM2
EM3
ST
COL1
COL2
COL3
COL4/KT
P→T
F
COL5
EM1
EM2
EM3
ST
ROW1
ROW2
2
5
3
6
ROW1
ROW2
ROW3
ROW4
1
4
2
5
3
6
4
ROW3
7
8
9
A
7
8
9
A
ROW4
*/T
M1
M6
0
#
RD/P
M4
*
0
#
RD/P
M4
ROW5/SDO
ROW6
M2
M7
M3
M8
M5
ROW5/SDO
ROW6
M1
M6
M2
M7
M3
M8
M5
M9
M10
M9
M10
@When ROW5 is selected by R option (COL5), there are 13 sets one touch memory version in EM91215C
provided.
FUNCTIONAL BLOCK DIAGRAM
HFO
SDO
PM
XMUTE
COL1
COL2
Row/Column
programming counter
Keyboard
interface
(column)
Output circuit
COL3
COL4/KT
COL5
latch
Memory
(Melody)
D/A
&
DTMF
converter
decoder
XIN
Oscillator
XOUT
Timing/Control circuit
ROW1
ROW6
Keyboard
interface
(Row)
PO
Pulse
generator
Input circuit
HFI HKS
VDD
VDD
* This specification are subject to be changed without notice.
10.1.1997
2
ELAN [ ELAN MICROELECTRONICS CORP ]
