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© Andigilog, Inc. 2006
www.andigilog.com
August 2006 - 70A04010
aSC7511
Pin Descriptions
Pin #
Name
Direction
Description
1
VDD
Supply
Supply Voltage
2
D+
Current
Source
Remote Diode Anode or Positive Lead
3
D-
Current Sink
Remote Diode Cathode or Negative Lead
4
THERM
Output
Open-drain logic output that may be used to control a fan or throttle CPU
when programmed temperature limit is exceeded.
5
GND
Supply
Ground
6
ALERT / THERM2
Output
Open-drain logic output used as a mask-able interrupt or SMBus alert.
Configurable as second THERM output.
7
SDA
Input/Output
Serial Data—Open drain I/0-data pin for two-wire serial interface.
8
SCL
Input
Serial Clock—Clock for two-wire serial interface.
Note: Open-drain pins require a pull-up resistor.
Conversion Rate
Figure 1. Block Diagram
Remote Offset
Com-
parator
Status
Remote THERM Limit
Local THERM Limit
Remote High Limit
Remote Low Limit
Local High Limit
Local Low Limit
Address Pointer
Local Temp.
Remote Temp.
ADC
Remote Diode Open
Busy
SDA
SCL
D +
D -
VDD VSS
1
1
5
5
2
2
3
3
Mask
Local
Sensor
Configuration
SMBus Interface
4
4
7
7
8
8
6
6
THERM
ALERT
/
THERM2
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