EMC1402_12 Datasheet, PDF (8/40 Pages) SMSC Corporation – 1°C Temperature Sensor with Beta Compensation

Chapter 2 Pin Description
1°C Temperature Sensor with Beta Compensation
Datasheet
VDD ₁
DP 2
DN 3
THERM 4
8 SMCLK
7 SMDATA
6 _ALERT
5 GND
Figure 2.1 EMC1402 Pin Diagram
PIN NUMBER
1
2
3
4
5
6
7
8
Table 2.1 EMC1402 Pin Description
NAME
VDD
DP
DN
THERM
GND
ALERT
SMDATA
SMCLK
FUNCTION
TYPE
Power supply
External diode positive (anode)
connection
External diode negative (cathode)
connection
Active low Critical THERM output
signal - requires pull-up resistor
Ground
Active low digital ALERT output
signal - requires pull-up resistor
SMBus Data input/output - requires
pull-up resistor
SMBus Clock input - requires pull-
up resistor
Power
AIO
AIO
OD (5V)
Power
OD (5V)
DIOD (5V)
DI (5V)
APPLICATION NOTE: For the 5V tolerant pins that have a pull-up resistor (SMCLK, SMDATA, THERM, and
ALERT), the voltage difference between VDD and the pull-up voltage must never exceed
3.6V.
The pin types are described below:
Power - these pins are used to supply either VDD or GND to the device.
AIO - Analog Input / Output.
DI - Digital Input.
OD - Open Drain Digital Output.
DIOD - Digital Input / Open Drain Output.
Revision 2.0 (08-10-12)
8
DATASHEET
SMSC EMC1402