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© Andigilog, Inc. 2006
www.andigilog.com
December 2006 - 70A05012
aSC7531A / aSC7531B
Pin Descriptions
Pin #
Name
Direction
Description
1
VDD (3.3V)
Supply
Supply Voltage, 3.3V +/- 10% (measured 3.3V input)
2
GND
Supply
Ground
3
D+
Current Source
Remote Diode Anode or Positive Lead
4
D-
Current Sink
Remote Diode Cathode or Negative Lead
5
12V
Input
12V PC System Supply Voltage
6
5V
Input
5V PC System Supply Voltage
7
VCCP
Input
CPU Core Voltage (1.2V to 1.5V)
8
2.5V
Input
2.5 V PC System Supply Voltage
9
ADD0
Input
Device Address Tri-State selector: Ground, Float or VDD
10
SST
Input
Digital Input / Output. SST Bi-directional Data Line.
Figure 1. Block Diagram
ADD0
SST
VSS
On-Chip
Sensor
Control and SST Interface
ADC
Remote Diode
Open / Short
Vccp Voltage
D +
D -
3.3V (VDD)
5V
2.5V
VCCP
12V
2.5V Voltage
3.3V Voltage
5V Voltage
12V Voltage
On-Chip Temperature
Remote Temperature
DIB Register