EM91401 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
EM91401
Pin Assignment
EM91401BP
EM91401AP
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
COL4/KT
COL3
COL2
COL1
XIN
PO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
COL4/KT
PO
ROW4
ROW3
ROW2
ROW1
HKS
COL3
COL2
COL1
XIN
ROW4
ROW3
ROW2
ROW1
HKS
XOUT
XMUTE
VSS
XOUT
XMUTE
VSS
VDD
VDD
DTMF
HFO
DTMF
HFI
EM91401DK
EM91401CP
SDO
COL4/KT
COL3
1
2
22
21
20
19
18
17
16
15
14
13
12
HDO
SDO
COL4/KT
COL3
COL2
COL1
XIN
1
2
20
19
18
17
16
15
14
13
12
11
HDO
PO
PO
3
ROW4
ROW3
ROW2
ROW1
HKS
3
ROW4
ROW3
ROW2
ROW1
HKS
COL2
4
4
COL1
5
5
XIN
6
6
XOUT
XMUTE
VSS
7
XOUT
XMUTE
VSS
7
8
VDD
8
VDD
DTMF
HFO
9
DTMF
HFO
9
HFI
10
11
HFI
10
DRING
RMUTE
Keyboard Arrangement
COL1
COL2
COL3
COL4/KT
ROW1
1
4
2
5
8
0
3
6
9
#
HD
F
ROW2
ROW3
ROW4
7
*/T
RD/P
* This specification are subject to be changed without notice.
10.1.1997
2
ELAN [ ELAN MICROELECTRONICS CORP ]
