AS1538/AS1540
Data Sheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
+V
DD
SDA
CH0
N/C
CH0 1
CH1 2
CH2 3
CH3 4
CH4 5
CH5 6
CH6 7
CH7 8
16 +V
DD
15 SDA
14 SCL
CH1
CH2
CH3
N/C
1
2
16
15
14
13
12 SCL
11 A1
AS1538
13 A1
12 A0
11 COM
10 REF
IN/OUT
9 GND
AS1540
3
4
5
N/C
6
GND
7
REF
IN/OUT
8
COM
10 A0
9
N/C
Pin Descriptions
Table 1. Pin Descriptions
AS1538
-
1:8
9
10
11
12
13
14
15
16
-
AS1540
1:3,16
-
6
7
8
10
11
12
13
15
4, 5, 9, 14
Pin Name
CH0:CH3
CH0:CH7
GND
REF
IN/OUT
COM
A0
A1
SCL
SDA
+V
DD
NC
Description
Analog Input Channels 0 to 3
Analog Input Channels 0 to 7
Analog Ground
Internal Reference/External Reference Input
Analog Input Channel Common
Slave Address Bit 0
Slave Address Bit 1
Serial Clock
Serial Data
Power Supply Input.
2.7 to 5.25V.
Not Connected
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