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參數(shù)資料
| 型號(hào)： | MAX6604ATA+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Precision Temperature Monitor for DDR Memory Modules |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | 2 X 3 MM, 0.80 MM HEIGHT, MO-229-WCED-2, TDFN-8 |
| 文件頁(yè)數(shù)： | 11/15頁(yè) |
| 文件大?。?/td> | 144K |
| 代理商： | MAX6604ATA+ |
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Detailed Description
The MAX6604 high-precision temperature sensor con-
tinuously monitors temperature and updates the
temperature data eight times per second. The device
functions as a slave on the SMBus/I2C-compatible inter-
face. The master can read the temperature data at any
time through the digital interface. The MAX6604 also
features an open-drain, event-output indicator for tem-
perature-threshold monitoring.
Serial Interface
SMBus/I2C
The MAX6604 is readable and programmable through
the SMBus/I2C-compatible interface. The device func-
tions as a slave on the interface. Figure 1 shows the
general timing diagram of the clock (SCL) and the data
(SDA) signals for the SMBus/I2C-compatible interface.
The SDA and SCL bus lines are at logic-high when the
bus is not in use. Pullup resistors from the bus lines to
the supply are required when push-pull circuitry is not
driving the lines. The data on the SDA line can change
only when the SCL line is low. Start and stop conditions
occur when SDA changes state while the SCL line is
high (Figure 1). Data on SDA must be stable for the
duration of the setup time (tSU:DAT) before SCL goes
high. Data on SDA is sampled when SCL toggles high
with data on SDA is stable for the duration of the hold
time (tHD:DAT). Note that a segment of data is transmit-
ted in an 8-bit byte. A total of nine clock cycles are
required to transfer a byte to the MAX6604. Since the
MAX6604 employs 16-bit registers, data is transmitted
or received in two 8-bit bytes (16 bits). The device
acknowledges the successful receipt for each byte by
pulling the SDA line low (issuing an ACK) during the
ninth clock cycle of each byte transfer.
From a software perspective, the MAX6604 appears as a
set of 16-bit registers that contain temperature data,
alarm threshold values, and control bits. A standard
SMBus/I2C-compatible, 2-wire serial interface reads tem-
perature data and writes control bits and alarm threshold
data. Each device responds to its own SMBus/I2C slave
address, which is selected using A0, A1, and A2. See
the
Device Addressing section for details.
The MAX6604 employs standard I2C/SMBus protocols
using 16-bit registers: write word and read word. Write
a word of data (16 bits) by first sending MAX6604’s I2C
address (0011-A2-A1-A0-0), then sending the 8-bit
command byte, followed by the first 8-bit data byte.
Note that the slave issues an acknowledge after each
byte is written. After the first 8-bit data byte is written,
the MAX6604 also returns an acknowledge. However,
the master does not generate a stop condition after the
first byte has been written. The master continues to
write the second byte of data with the slave acknowl-
edging. After the second byte has been written, the
master then generates a stop condition. See Figure 2.
To read a word of data, the master generates a new
start condition and sends MAX6604’s I2C address with
the R/W bit high (1010-A2-A1-A0-1), then sends the 8-
bit command byte. Again, the MAX6604 issues an ACK
for each byte received. The master again sends the
device address, following an acknowledge. Next, the
master reads the contents of the selected register,
beginning with the most significant bit, and acknowl-
edges if the most significant data byte is successfully
received. Finally, the master reads the least significant
data byte and issues a NACK, followed by a stop con-
dition to terminate the read cycle.
MAX6604
Precision Temperature Monitor for
DDR Memory Modules
_______________________________________________________________________________________
5
START CONDITION
REPEATED START CONDITION
STOP CONDITION
tHD:STA
tR
tF
tLOW
tSU:DAT
tHD:DAT
tSU:STA
tHD:STA
tSU:STO
tBUF
SDA
SCL
Figure 1. SDA and SCL Timing Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6604ATA+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6604ATA+T | 功能描述:板上安裝溫度傳感器 Temperature Monitor for DDR Mem Module RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6604ATA+TW | 功能描述:板上安裝溫度傳感器 Temperature Monitor for DDR Mem Module RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6604ATA-T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6605MXK | 制造商:Maxim Integrated Products 功能描述:5 PINS SC70 PKG - Rail/Tube |
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