EM91455 SERIES
TONE/PULSE DIALER WITH LCD INTERFACE
AND I.P.P. DETECT FUNCTION
EM91455
Pin Assignment
EM91455AP
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
HDO
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
EM91455BP
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
HDO
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
HFO
EM91455CK
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
HDO
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
HFO
EM91455DK
NC
COL5
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
VSS
HFI
DRING
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SDO
HDO
PO
ROW4
ROW3
ROW2
ROW1
HKS
VDD
DTMF
HFO
RMUTE
Keyboard Arrangement
ROW1
ROW2
ROW3
ROW4
COL1
1
4
7
*/T
COL2
2
5
8
0
COL3
3
6
9
#
COL4/KT
HD
F
RD/P
COL5
EM1
EM2
EM3
ST
* This specification are subject to be changed without notice.
9.24.1998
2
EMC [ ELAN MICROELECTRONICS CORP ]
