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参数资料
| 型号： | MAX31826MUA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 17/22页 |
| 文件大小： | 1648K |
| 描述： | IC TEMP SENSOR DIGITAL 8UMAX |
| 标准包装： | 50 |
| 系列： | 1-Wire® |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±2°C |
| 拓扑： | 寄存器库，变签式暂存器 |
| 输出类型： | 1-Wire? |
| 输出警报： | 无 |
| 输出风扇： | 无 |
| 电源电压： | 3 V ~ 3.7 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
Maxim Integrated Products 17
MAX31826
1-Wire Digital Temperature Sensor
with 1Kb Lockable EEPROM
Figure 9. Building a Cross-Reference Table
Locations 40h7Fh are now locked. Also, location 81h is
locked with value 55h. Location 81h cannot be changed to
alter the lock status of 40h7Fh.
Building a Cross-Reference Table
The procedure in Figure 9 uses the Search ROM com-
mand to find all MAX31826s on the 1-Wire bus (16
maximum) and then reads each configuration register to
match the ROM IDs to the hardwired addresses.
1-Wire Signaling
The device uses a strict 1-Wire communication protocol
to ensure data integrity. Several signal types are defined
by this protocol: reset pulse, presence pulse, write-zero,
write-one, read-zero, and read-one. The bus master initi-
ates all these signals except the presence pulse.
Initialization Procedure:
Reset and Presence Pulses
All communication with the device begins with an initial-
ization sequence that consists of a reset pulse from the
master followed by a presence pulse from the device.
This is illustrated in Figure 10. When the device sends the
presence pulse in response to the reset, it is indicating
to the master that it is on the bus and ready to operate.
During the initialization sequence, the bus master trans-
mits (Tx) the reset pulse by pulling the 1-Wire bus low for
480Fs (min). The bus master then releases the bus and
goes into receive mode (Rx). When the bus is released,
the 5kI pullup resistor pulls the 1-Wire bus high. When
the device detects this rising edge, it waits 15Fs to 60Fs
and then transmits a presence pulse by pulling the
1-Wire bus low for 60Fs to 240Fs.
SEARCH ALL
ROM IDs ON BUS
AND
STORE ROM IDs
(F0h COMMAND)
N
MAX
IS THE NUMBER
OF ROM IDs FOUND
DONE
BUILDING CROSS-REFERENCE TABLE
USING ROM IDs AND 4-BIT ADDRESSES
READ SCRATCHPAD 1
(USE AD3AD0 FROM
CONFIG REGISTER)
MASTER Tx
NEXT ROM ID
INCREMENT COUNTER
N = N + 1
N > N
MAX
?
N
Y
MATCH ROM ID TO
ADDRESS AND ADD TO
CROSS-REFERENCE
TABLE
ROM ID(0)
0000
ROM ID
AD3AD0
CROSS-REFERENCE TABLE
NOTE: TEMPERATURE SENSORS ARE ADDRESSED
BY ROM ID, NOT BY BINARY ADDRESS.
ROM ID(1)
0001
ROM ID(2)
0010
ROM ID(3)
0011
ROM ID(12)
1100
ROM ID(13)
1101
ROM ID(14)
1110
ROM ID(15)
1111
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX31826MUA+ | 功能描述:板上安装温度传感器 1-Wire w/ 1Kbit EEPROM RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX31826MUA+T | 功能描述:板上安装温度传感器 1-Wire w/ 1Kbit EEPROM RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX3182EEUK | 制造商:Maxim Integrated Products 功能描述:+-15KV ESD-PROTECTED 0.5MA +3V TO - Rail/Tube |
| MAX3182EEUK+ | 制造商:Maxim Integrated Products 功能描述:LINE RCVR 1RX 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:Single Receiver RS-232 5-Pin SOT-23 Bulk |
| MAX3182EEUK+T | 功能描述:RS-232接口集成电路 .5uA 3-5.5V 1.5Mbps RS-232 Rcvr RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
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