U2090B
| Model | U2090B |
| Description | Monolithic Integrated Feature Phone Circuit |
| PDF file | Total 34 pages (File size: 675K) |
| Chip Manufacturer | ATMEL |
U4090B
1
68 nF
I
pd
10
220 F
1000 F
2
10
m
F
4.7 nF
RDC
3
4
5
6
7
8
9
10
11
12
13
14
47 F
15
16
17
18
19
20
21
22
Figure 26. Input characteristics of io-ports
Preliminary Information
10
m
F
ZEAR
I
MUTR
I
M
35
34
33
32
31
30
29
28
36
41
40
39
38
37
62 k
W
27
100
m
F
RGT
W
m
m
m
I
MP
I
IMPSEL
1 F
TELEFUNKEN Semiconductors
Rev. C1, 28-Oct-96
open
V
pd
V
MP
V
I
L
V
L
V
MP
Open pins should be connected as shown in figure 25
94 9139
32 (34)
V
MP
V
M
RGSA
I
MUTX
26
25
24
23
V
MP
RGR
44
43
42
U4090B
m
