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aSC7521A

L

OW

-V

OLTAGE

1-W

IRE

D

IGITAL

T

EMPERATURE

S

ENSOR

P

RODUCT

S

PECIFICATION

Product Description

The aSC7521A is a high-precision CMOS temperature sensor

and voltage monitor with Simple Serial Transport (SST)

compatible serial digital interface, intended for use in PC

hardware monitor applications.

Communication of device capabilities and temperature

readings takes place over the high-speed bi-directional SST

interface.

The SST temperature sensor provides a means for an analog

signal to travel over a digital bus enabling remote temperature

sensing in areas previously not monitored in the PC. The

temperature sensor supports an internal and external thermal

diode.

Sensor localization is aided by two address pins that

distinguish multiple sensors on the same bus.

The aSC7521A is available in MSOP-8 surface mount

package.

Pin Configuration

V

DD

GND

D+

D-

1

8

SST

ADD0

GND

ADD1

2

7

3

6

aSC7521A

4

5

Features

鈥?/div>

On-chip and remote temperature sensors

Accuracy:

o

+/- 3擄C over operational range

o

Internal +/- 2擄C over 40擄C to 70擄C

o

Remote +/- 1擄C over 50擄C to 70擄C

Operational Range: -40擄C to 125擄C

Temperature resolution: 0.125擄C

1-wire SST serial interface

Negotiable SST signaling rate up to 2-Mbps

Temperature and errors reported over SST

Internally corrected for diode non-ideality and series

resistance

3-state address pins set one of 9 SST bus address

0x48 through 0x50

8-lead MSOP package

MSL-1 per JEDEC J-STD-020C

Pb-free Matte Sn leadfinish & RoHS Compliant

Packages

Applications

Desktop and Notebook Computers

Application Diagram

3.3V

1

3

4

鈥?/div>

CPU

aSC7521A

5

ADD1

ADD0

SST

Interface

SST

8

7

2, 6

Ordering Information

Temp. Range and Operating

Voltage

-40擄C to 125擄C, 3.3V

Part Number

aSC7521AM8

Package

8-Lead MSOP

Marking

521A

Ayww

Supplied In

2500 units Tape &

Reel

Ayww 鈥?Assembly site, year, workweek

-1-

www.andigilog.com

漏 Andigilog, Inc. 2006

October 2006 - 70A05011

型號(hào)

版本

描述

廠商

下載
521A

英文版

LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR

ETC

521A
521A

英文版

LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR

ETC [ETC]

521A

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