em91401a ELAN Microelectronics Corp, em91401a Datasheet - Page 19

• Manufacturer Part Number: em91401a
• Description: Em91401 Series Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator Em91401 Series Tone/pulse Switchable Dialer With Lcd Interface And Dual-tone Melody Generator
• Manufacturer: ELAN Microelectronics Corp

* This specification are subject to be changed without notice.
EM32100 Application Circuit :
Package type : QFP 48 pins or chip form provided
SDI
SDO
DIALER
2
VSS
VDD
SW?A
SW HOOK
HKS
HDO
HFO
1
3
200K
R?
100K
100K
3
1
R?
2
Q?
C945
220K
R?
R?
1
1
1
D?
DIODE
D?
DIODE
D?
DIODE
2
2
2
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
R?
47K
1U
VCC
2
37
38
39
40
41
42
43
44
45
46
47
48
C?
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
TEST2
TESTI
F32H
NC
3
1
Q?
C945
R?
220K
8/10 Digits LCD Pannel
20 P
K?
K?
AND DUAL-TONE MELODY GENERATOR
S
E
G
6
M
S
1
3
6
1
S
E
G
7
M
S
2
3
5
2
32768 HZ
S
E
G
8
S
D
I
3
4
3
20 p
S
E
G
9
H
K
S
C?
3
3
4
EM32100
N
C
V
D
D
3
2
5
S
E
G
1
0
X
I
N
3
1
6
S
E
G
1
1
N
C
3
0
7
S
E
G
1
2
X
O
U
T
2
9
8
S
E
G
1
3
V
S
S
C?
2
8
9
S
E
G
1
4
2
4
/
1
2
2
7
1
0
S
E
G
1
5
E
N
R
T
C
2
6
1
1
S
E
G
1
6
N
C
2
5
1
2
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
K?
K?
VEE
VN
VP
NC
EM91401 SERIES
VCC
U?
24
23
22
21
20
19
18
17
16
15
14
13
BT?
1.5V
10.1.1997
C?
.1u
C?
.1u
19