EEPROM Digital Output Temperature Sensor with On-board SPD

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Overview

The N34TS04 is a combination Temperature Sensor (TS) and 4-Kb of Serial Presence Detect (SPD) EEPROM, which implements the JEDEC TSE2004av DDR4 specification. The TS measures temperature at least 10 times every second. Temperature readings can be retrieved by the host via the serial interface, and are compared to high, low and critical trigger limits stored into internal registers. Over or under limit conditions can be signaled on the open-drain EVENT pin.

The 4-Kb memory is partitioned into two individually addressable 2-Kb banks (referred to as SPD pages in the TSE2004av specification). Each bank contains two 1-Kb blocks, which can be Write Protected via Reversible Software Write Protect (RSWP) commands. The SPD EEPROM features a 16-byte wide write buffer and supports the Standard (100 kHz), Fast (400 kHz) and Fast Plus (1 MHz) I2C protocols.

  • Thermal Management and SPD for DDR4 Memory Modules
  • High-speed PCs, laptops, DDR4
  • Graphics cards
  • Telecom equipment & base stations
  • Environmental control systems
  • Process control equipment
  • Game Consoles
  • JEDEC TSE2004av Compliant Temperature Sensor
  • Temperature Range: -20°C to 125°C
  • DDR4 DIMM Compliant SPD EEPROM
  • Supply Range: 1.7 V - 5.5 V (SPD EEPROM) and 2.2 V - 5.5 V (TS)
  • I2C / SMBus Interface
  • Schmitt Triggers and Noise Suppression Filters on SCL and SDA Inputs
  • 16-Byte Page Write Buffer
  • Low Power CMOS Technology
  • 2 x 3 x 0.75 mm TDFN Package and 2 x 3 x 0.5 mm UDFN Package

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CAD Models

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

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ON Target

Type

Density

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Data Transmission Standard

fcycle Max (kHz)

tACC Max ns

VCC Min (V)

VCC Max (V)

Istandby Max (µA)

Iact Max (mA)

T Min (°C)

T Max (°C)

Reference Price

N34TS04MT3ETG

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Active

CAD Model

Pb

A

H

P

TDFN-8

1

260

REEL

4000

N

Serial

4 kb

512 x 8

I2C

1000

300

1.7

5.5

10

1

-40

125

$0.3987

More Details

N34TS04MU3ETG

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Active

CAD Model

Pb

A

H

P

UDFN-8

1

260

REEL

4000

N

Serial

4 kb

512 x 8

I2C

1000

300

1.7

5.5

10

1

-40

125

$0.3933

More Details

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