Texas Instruments ADS1254, User Manual

Page: 39 / 40

4-5
1
2
3
4
5
6
A B C D
6
5
4
3
2
1
D C B A
RE
V
IS
IO
N
H
IS
T
O
R
Y
RE
V
E
N
G
IN
E
E
R
ING
C
H
A
N
G
E
NUM
BE
R
A
P
P
RO
V
E
D
DV CC
1
P6
.3
/A
3
2
P6
.4
/A
4
3
P6
.5
/A
5
4
P6
.6
/A
6
5
P6
.7
/A
7
6
VREF+
7
XIN
8
XOU T/T CL K
9
VER EF +
10
VRE F− /VE RE F−
11
P1.0
/T
A
C
L
K
12
P1.1
/T
A
0
13
P1.2
/T
A
1
14
P1.3
/T
A
2
15
P1.4
/S
M
C
L
K
16
P1.5
/T
A
0
17
P1.6
/T
A
1
18
P1.7
/T
A
2
19
P2.0
/A
CL
K
20
P2.1
/T
A
IN
C
L
K
21
P
2
.2
/C
A
O
U
T
/T
A
0
22
P2
.3
/C
A
0
/T
A
1
23
P2
.4
/C
A
1
/T
A
2
24
P2.5
/R
OS
C
25
P2.6
/A
D
C
12
CL
K
26
P2.7
/T
A
0
27
P3
.0
/S
T
E
0
28
P3.1
/S
IM
O
0
29
P3.2
/S
O
M
I0
30
P3.3
/U
CL
K
0
31
P3
.4
/U
T
X
D
0
32
P3
.5
/U
R
X
D
0
33
P3
.6
/U
T
X
D
1
34
P3
.7
/U
R
X
D
1
35
P4
.0
/T
B
0
36
P4
.1
/T
B
1
37
P4
.2
/T
B
2
38
P4
.3
/T
B
3
39
P4
.4
/T
B
4
40
P4
.5
/T
B
5
41
P4
.6
/T
B
6
42
P4
.7
/T
B
C
L
K
43
P5
.0
/S
T
E
1
44
P5
.1
/S
IM
O
1
45
P5
.2
/S
O
M
I1
46
P5
.3
/U
CL
K
1
47
P5
.4
/M
C
L
K
48
P5
.5
/S
M
C
L
K
49
P5
.6
/A
C
L
K
50
P5
.7
/T
B
O
U
T
H
51
XT2 OU T
52
XT2 IN
53
TDO /TD I
54
TDI
55
TMS
56
TCK
57
RS T/N MI
58
P6
.0
/A
0
59
P6
.1
/A
1
60
P6
.2
/A
2
61
AVS S
62
DV SS
63
AVC C
64
U7 M
S
P
430F149I
P
M
C2 +
1
GN D
2
C2 −
3
V−
4
TO
U
T
1
5
TO
U
T
2
6
TO
U
T
3
7
RI
N1
8
RI
N2
9
TO
U
T
4
10
RI
N3
11
TO
U
T
5
12
FO
RC
EO
N
13
FO
RC
EO
F
F
14
IN
V
A
L
ID
15
RO
UT
1
B
16
TI
N
5
17
RO
UT3
18
TI
N
4
19
RO
UT
2
20
RO
UT
1
21
TI
N
3
22
TI
N
2
23
TI
N
1
24
C1 −
25
VCC
26
V+
27
C1 +
28 U8
MA X3 23 8C PW
3.3Vd
d
3.3V
dd
C18 1u
F
C2
0
1u
F
C15 1u
F
C16 .2
2
u
F
C1
7
1u
F
I/O0
21
I/O1
22
I/O2
23
I/O3
25
I/O4
26
I/O5
27
I/O6
28
I/O7
29
A0
20
A1
19
A2
18
A3
17
A4
16
A5
15
A6
14
A7
13
A8
3
A9
2
A1
0
31
A1
1
1
A1
2
12
A1
3
4
A1
4
11
A1
5
7
A1
6
10
VDD
8
CE2
6
CE1
30
OE
32
WE
5
GN D
24
U1
0
CY
62
128V
L
L−
70Z
C
3.
3
V
d
d
RA
M
_
D
0
RA
M
_
D
1
RA
M
_
D
2
RA
M
_
D
3
RA
M
_
D
4
RA
M
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D
5
RA
M
_
D
6
RA
M
_
D
7
3.
3V
d
d
RA
M
_
A
0
RA
M
_
A
1
RA
M
_
A
2
RA
M
_
A
3
RA
M
_
A
4
RA
M
_
A
5
RA
M
_
A
6
RA
M
_
A
7
RA
M
_
A
8
RA
M
_
A
9
RA
M
_
A
1
0
RA
M
_
A
1
1
RA
M
_
A
1
2
RA
M
_
A
1
3
RA
M
_
A
1
4
RA
M
_
A
1
5
RA
M
_
A
1
6
RAM
_A9
RAM
_A1
0
RAM
_A1
1
RAM
_A1
2
RAM
_A1
3
RAM
_A1
4
RAM
_A1
5
RAM
_A1
6
C23 10
u
F
C21 10
u
F
RA
M
_
A
1
RA
M
_
A
2
RA
M
_
A
3
RA
M
_
A
4
RA
M
_
A
5
RA
M
_
A
6
RA
M
_
A
7
RA
M
_
A
8
X1
HC
M
4
9
−8
.000
M
A
B
J
T
RA
M
_
C
E
RAM
_OE
RA
M
_
W
E
RA
M
_
C
E
RAM
_OE
RA
M
_
W
E
SP_
T
X
D
SP_
C
T
S
SP
_
D
SR
SP_
D
C
D
SP
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R
I
SP
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R
X
D
3.3V
d
d
SP
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R
T
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3.3V
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d
SP _D TR
SP
_
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T
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SP
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X
D
SP_
T
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D
SP
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C
T
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SP
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SP
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D
C
D
SP
_
R
I
SP
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R
X
D
SP_
R
X
D
2
4
6 1
3
5
7
8
9 10
11 12
13 14
J6 3.
3
V
J
T
A
G
P
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T
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M
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A
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3.
3
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d
d
RES
E
T
#
RE
S
E
T
#
RD CT
S
DS
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DC
D
RI TD RT
S
DT
R
R1
7
10
K
3.
3
V
d
d
R
A
M
_
A
[1
..
16]
1 6 2 7 3 8 4 9 5
DC
D
RD TD DTR SG DS
R
RT
S
CT
S
RI
J7
74
7844
−4
AV
d
d
A
Vdd
C10 10
u
F
3.3V
d
d
C12 1u
F
AV
D
D
7
CH
1
+
1
CH
1
−
2
CH
2
+
3
CH
2
−
4
CH
3
+
5
CH
3
−
6
CH
4
+
20
CH
4
−
19
CH
S
1
15
CH
S
0
16
AG
N
D
17
Vr
e
f
18
NC
10
NC
11
DV
D
D
9
DG
ND
12
CL
K
8
SC
L
K
14
DO
UT
13
U5 A
D
S
1
2
54E
R5 1K R6 1K R7 1K R1
2
1K R8 1K R9 1K R1
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1
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u
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1
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1
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C7 10
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220
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M
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12
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d
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d
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9
18
p
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C14 18
p
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SW
1
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Q
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0
4
K
ti
67
30
S
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T
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T
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LV
D
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T
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N
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R
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2
AD
S
1
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1
C2 .33
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F
1 2 3 4 5 6 7 8
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12
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DS
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+
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6
7 4
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5
VO
U
T
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4
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2
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103
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C5 10
u
F
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3
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G
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F
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7
D
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2
4
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U9 S
N
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1
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120
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1
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10
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T
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3
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R3 5.
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dd
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9
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d
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R2
3
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100
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3
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T
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RES
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T
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T
V
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CH S1
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S
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S
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S
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d
d
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L
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CL
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S
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3.3V
d
d
C27 1u
F
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L
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C26 56P
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:
A
L
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−F
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M
S
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R
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C
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M
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U
N
T
(1
206
)
ALL
1
0
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F
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P
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S
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O
N
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1
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1
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R
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.
(1
2
06)
A
L
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T
2 4
1
5
3
U1 4
SN 74 LV C1 G1 25 DB VR
3.3V
d
d
D2 D
L
4001
1
2
3
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P
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D
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1
2
3
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P
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DD
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3.
3
V
d
d
C13 1u
F
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C
L
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N
3
VO
U
T
2
GN D
1
VO
U
T
4
U1
2
RE
G
1
1
1
7
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C22 10
u
F
C2
4
10
u
F
5V
dd
5V
dd
3.
3
V
d
d
E
X
T
D
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IT
A
L
5
V
IN
+− +−
D
O
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R
O
L
N
O.
64
3
260
0
EX
T
A
N
A
L
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G
5
V
IN
TP
1
TP2
TP3
TP4
TP6
TP5
SC
L
K
DO
UT
DO
UT
SC
L
K