© Semiconductor Components Industries, LLC, 2014

May, 2014 − Rev. 6

1

Publication Order Number:

NCT75/D

NCT75

Industry Standard Digital

Temperature Sensor with

2‐wire Interface

The NCT75 is a two-wire serially programmable temperature

sensor with an over-temperature/interrupt output pin to signal out of

limit conditions. This is an open-drain pin and can operate in either

comparator or interrupt mode. Temperature measurements are

converted into digital form using a high resolution (12 bit),

sigma-delta, analog-to-digital converter (ADC). The device operates

over the –55

°C to +125°C temperature range.

Communication with the NCT75 is accomplished via the

can be used to connect up to 8 NCT75s to a single bus. Through this

interface the NCT75s internal registers may be accessed. These

registers allow the user to read the current temperature, change the

configuration settings and adjust the temperature limits.

The NCT75 has a wide supply voltage range of 3.0 V to 5.5 V. The

average supply current is 575

mA at 3.3 V. It also offers a shutdown

mode to conserve power. The typical shutdown current is 3

mA.

The NCT75 is available in three, space saving packages – 8-lead

DFN, 8-lead Micro8

t and 8-lead SOIC and is also fully pin and

register compatible with the LM75 and TCN75.

Features

Compliant

Applications

MARKING DIAGRAMS

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 12 of this data sheet.

ORDERING INFORMATION

DFN8

CASE 506AA

75M

G

G

1

M

= Date Code

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb-Free Package

CT75

AYW

G

G

1

8

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W

= Work Week

G

= Pb-Free Package

NCT75

ALYWX

G

1

8

SOIC8

CASE 751

Micro8

t

CASE 846A

DFN8

Micro8

t

SOIC8

PIN ASSIGNMENT

(Top View)

1

2

3

4

8

7

6

5

A0

A1

A2

SDA

SCL

OS/ALERT

GND

(Note: Microdot may be in either location)