SMBus

Master

* Place close to LM95241 pins.

** Optional may be required in noisy systems; place close to LM95241 pins.

Q1

MMBT3904

LM95241

1

2

3

4

D1+

D1-

D2+

D2-

5

6

7

8

SMBCLK

SMBDAT

GND

C1*

100 pF

C2

0.1 PF

SMBCLK

SMBDAT

C4**

100 pF

65nm/90nm

PROCESSOR

C5**

100 pF

+3.3V

Standby

R1

1.3k

R2

1.3k

C3

10 PF

+

Local

Temperature

Registers

Remote 1

Temperature

Registers

SMBus Two Wire Serial Interface

Remote

Diode2 Selector

'-6 Converter

11-Bit or 10-Bit Plus Sign Remote

9-bit Plus Sign Local

3.0V-3.6V

D+

D-

SMBDAT

SMBCLK

Remote 2

Temperature

Registers

Diode Filter

Control

Registers

Config

and

Status

Register

Revision and

Manufacturer

ID Registers

Remote

Diode1 Selector

D+

D-

Local

Diode Selector

TruTherm

TM

Temperature

Sensor

Circuitry

LM95241

Control

Logic

Diode Type

Selection

Register

Diode

TruTherm

Control

Register

LM95241

www.ti.com

SNIS143E – AUGUST 2006 – REVISED MARCH 2013

Simplified Block Diagram

Typical Application

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Copyright © 2006–2013, Texas Instruments Incorporated

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