ds2408st-r Maxim Integrated Products, Inc., ds2408st-r Datasheet - Page 27
ds2408st-r
Manufacturer Part Number
ds2408st-r
Description
Ds2408 1-wire 8-channel Addressable Switch
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2408ST-R.pdf
(36 pages)
- Current page: 27 of 36
- Download datasheet (2Mb)
Figure 16. CRC-16 HARDWARE DESCRIPTION AND POLYNOMIAL
Figure 17. DS2408 AS SLAVE INTERFACE FOR MICROCONTROLLER
The data direction (upload/download) is determined by application-specific data protocol.
X
X
0
8
STAGE
STAGE
9
1
th
st
VCC
GND
1W
X
X
9
1
STAGE
STAGE
10
2
nd
th
X
10
STAGE
11
th
VCC
X
11
STAGE
X
12
2
STAGE
th
3
POLYNOMIAL = X
3
4
5
rd
X
47U
12
DS2408
STAGE
VCC
IO
GND
X
13
3
STAGE
th
4
th
X
RSTZ
13
27 of 36
P0
P1
P2
P3
P4
P5
P6
P7
STAGE
PULLUP PROVIDED BY CPU
X
14
4
STAGE
th
2
14
13
12
11
9
8
7
10
16
5
th
X
+ X
14
STAGE
X
15
15
5
STAGE
+ X
th
6
th
2
INPUT DATA
+ 1
10
12
42
15
16
17
18
19
20
21
22
23
24
3
4
5
6
7
8
9
X
6
STAGE
DS80C520
8051 Equiv CPU
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
EA
P3.0/RXD0
P3 .2 / INT0
P3 .3 / INT1
P3 .6 / WR
P3 .7 / RD
XTAL2
XTAL1
RST
P3.1/TXD0
P3.4/T0
P3.5/T1
7
th
X
X
15
7
STAGE
STAGE
16
8
th
th
P2.2/AD10
P2.3/AD11
P2.4/AD12
P2.5/AD13
P2.6/AD14
P2.7/AD15
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
P2.0/AD8
P2.1/AD9
X
RTCX1
RTCX2
16
PSEN
ALE
50
49
48
47
46
45
44
43
39
38
30
31
32
33
34
35
36
37
28
27
CRC
OUTPUT
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