The STTS2002 is targeted for DIMM modules in mobile personal computing platforms (laptops), servers and other industrial applications. The thermal sensor (TS) in the STTS2002 is compliant with the JEDEC specification TSE2002a2, which defines memory module thermal sensors requirements for mobile platforms. The 2 Kb serial presence detect (SPD) I²C-compatible electrically erasable programmable memory (EEPROM) in the STTS2002 is organized as 256 x8 bits and is functionally identical to the industry standard M34E02.

The TS-SPD EEPROM combination provides space as well as cost savings for mobile and server platform dual inline memory modules (DIMM) manufacturers, as it is packaged in the compact 2 mm x 3 mm 8-lead TDFN package with a thinner maximum height of 0.80 mm. The DN package is compliant to JEDEC MO-229, variation WCED-3.

The digital temperature sensor has a programmable 9-12 bit analog-to-digital converter (ADC) which monitors and digitizes the temperature to a resolution of up to 0.0625 °C. The default resolution is 0.25 °C/LSB (10-bit). The typical accuracies over these temperature ranges are: ±2 °C over the full temperature measurement range of –40 °C to 125 °C, ±1 °C in the +40 °C to +125 °C active temperature range, and ±0.5 °C in the +75 °C to +95 °C monitor temperature range.

The temperature sensor in the STTS2002 is specified for operating at supply voltages from 2.3 V to 3.6 V. Operating at 3.3 V, the typical supply current is 160 μA (includes SMBus communication current).

The on-board sigma delta ADC converts the measured temperature to a digital value that is calibrated in °C. For Fahrenheit applications, a lookup table or conversion routine is required. The STTS2002 is factory-calibrated and requires no external components to measure temperature.

The digital temperature sensor component has user-programmable registers that provide the capabilities for DIMM temperature-sensing applications. The open drain event output pin is active when the monitoring temperature exceeds a programmable limit, or it falls above or below an alarm window. The user has the option to set the event output as a critical temperature output. This pin can be configured to operate in either a comparator mode for thermostat operation or in interrupt mode.

stts2002是針對(duì)個(gè)人移動(dòng)計(jì)算平臺(tái)的DIMM模塊（筆記本電腦）、服務(wù)器和其他工業(yè)應(yīng)用。熱傳感器（TS）在stts2002符合JEDEC規(guī)范tse2002a2，它定義了存儲(chǔ)器模塊的熱傳感器要求的移動(dòng)平臺(tái)。2 kb的串行存在檢測(cè)（SPD）I2C兼容的電可擦除可編程存儲(chǔ)器（EEPROM）在stts2002由256 x8位，是行業(yè)標(biāo)準(zhǔn)m34e02功能相同。

ts-spd EEPROM的結(jié)合提供了空間，以及移動(dòng)和服務(wù)器平臺(tái)的雙列直插式內(nèi)存模塊（DIMM）生產(chǎn)的成本節(jié)約，因?yàn)樗欠庋b在緊湊的2毫米×3毫米的8引腳TDFN封裝更薄的最大高度為0.80毫米。DN封裝符合JEDEC mo-229，變化wced-3。

數(shù)字溫度傳感器有一個(gè)可編程的9-12位模數(shù)轉(zhuǎn)換器（ADC）和數(shù)字化的溫度分辨率高達(dá)0.0625°C.默認(rèn)分辨率為0.25°C / LSB的顯示器（10位）。以上溫度范圍內(nèi)的典型精度為：±2°，全溫測(cè)量范圍為40°～125°，±1°±40°±125°，±0.5°C，±75°C。

在stts2002溫度傳感器工作在電源電壓從2.3 V至3.6 V 3.3 V操作在指定的，典型的電源電流為160個(gè)（包括μSMBus通信流）

車(chē)載Sigma-Delta ADC轉(zhuǎn)換為數(shù)字值，測(cè)得的溫度校準(zhǔn)°C.為華氏應(yīng)用，查找表或轉(zhuǎn)換程序是必需的。是的stts2002工廠校準(zhǔn)，不需要外部元件來(lái)測(cè)量溫度。

數(shù)字溫度傳感器組件具有用戶可編程寄存器DIMM的溫度傳感應(yīng)用提供能力。當(dāng)監(jiān)測(cè)溫度超過(guò)了可編程限制時(shí)，該開(kāi)漏事件輸出引腳是活動(dòng)的，或是在報(bào)警窗口上方或下方。用戶可以選擇將事件輸出設(shè)置為一個(gè)臨界溫度輸出。該引腳可以配置為在一個(gè)比較器模式操作或在溫控器操作或中斷模式。

Key Features

• 2.3 V memory module temperature sensor with integrated 2 Kb SPD EEPROM

• Forward compatible with JEDEC TSE 2002a2 and backward compatible with STTS424E02

• Operating temperature range:

• –40 °C to +125 °C

• Single supply voltage: 2.3 V to 3.6 V

• 2 mm x 3 mm TDFN8, height: 0.80 mm (max)

• JEDEC MO-229, WCED-3 compliant

• RoHS compliant, halogen-free

• Temperature sensor

• Temperature sensor resolution: programmable (9-12 bits)0.25 °C (typ)/LSB - (10-bit) default

• Temperature sensor accuracy (max):

  ± 1 °C from +75 °C to +95 °C± 2 °C from +40 °C to +125 °C± 3 °C from –40 °C to +125 °C

• ADC conversion time: 125 ms (max) at default resolution (10-bit)

• Typical operating supply current: 160 μA (EEPROM standby)

• Temperature hysteresis selectable set points from: 0, 1.5, 3, 6.0 °C

• Supports SMBus timeout 25 ms - 35 ms

• 2 Kb SPD EEPROM

• Functionality identical to ST’s M34E02 SPD EEPROM

• Permanent and reversible software data protection for the lower 128 bytes

• Byte and page write (up to 16 bytes)

• Self-time WRITE cycle (5 ms, max)

• Automatic address incrementing

• Two-wire bus

• Two-wire SMBus/I²C - compatible serial interface

• Supports up to 400 kHz transfer rate

• Does not initiate clock stretching

主要特點(diǎn)

2.3 V內(nèi)存模塊溫度傳感器集成2 KB的SPD EEPROM

與JEDEC TSE 2002a2向前兼容和向后兼容stts424e02

工作溫度范圍：

在40°C至125°C

單電源電壓：2.3伏至3.6伏

2毫米x 3毫米tdfn8，高度：0.80毫米（最大）

JEDEC mo-229，wced-3兼容

符合RoHS標(biāo)準(zhǔn)，無(wú)鹵

溫度傳感器

溫度傳感器分辨率：可編程（9-12位）0.25°C（典型值）/ LSB -（10位）的默認(rèn)

溫度傳感器精度（最大）：±75°±1°±95°±2°±40°±125°±3°±40°±125°

ADC轉(zhuǎn)換時(shí)間：125毫秒（max）在默認(rèn)的分辨率（10位）

典型工作電流：160μ一（EEPROM備用

溫度滯后可選擇設(shè)定點(diǎn)：0、1.5、3、6°

支持SMBus超時(shí)25毫秒35毫秒

2 KB的SPD EEPROM

ST的m34e02 SPD EEPROM功能相同

128字節(jié)的永久和可逆的軟件數(shù)據(jù)保護(hù)

字節(jié)和頁(yè)面寫(xiě)入（最多16個(gè)字節(jié)）

自寫(xiě)周期（5毫秒，最大）

地址自動(dòng)遞增

雙線總線

2線SMBus或I2C兼容的串行接口

支持多達(dá)400千赫的傳輸速率

不啟動(dòng)時(shí)鐘拉伸