- 您现在的位置：买卖IC网 > PDF目录19603 > MAX31826MUA+ (Maxim Integrated)IC TEMP SENSOR DIGITAL 8UMAX PDF资料下载
参数资料
| 型号： | MAX31826MUA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 18/22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 18
MAX31826
1-Wire Digital Temperature Sensor
with 1Kb Lockable EEPROM
Read/Write Time Slots
The bus master writes data to the device during write
time slots and reads data from the device during read
time slots. One bit of data is transmitted over the 1-Wire
bus per time slot.
Write Time Slots
There are two types of write time slots: write-one time
slots and write-zero time slots. The bus master uses a
write-one time slot to write a logic 1 to the device and
a write-zero time slot to write a logic 0 to the device. All
write time slots must have a 60Fs (min) duration with a
1Fs (min) recovery time between individual write slots.
Both types of write time slots are initiated by the master
pulling the 1-Wire bus low (Figure 11).
To generate a write-one time slot, after pulling the 1-Wire
bus low, the bus master must release the 1-Wire bus
within 15Fs. When the bus is released, the 5kI pullup
resistor pulls the bus high. To generate a write-zero time
slot, after pulling the 1-Wire bus low, the bus master must
continue to hold the bus low for the duration of the time
slot (at least 60Fs).
The device samples the 1-Wire bus during a window that
lasts from 15Fs to 60Fs after the master initiates the write
time slot. If the bus is high during the sampling window,
a 1 is written to the device. If the line is low, a 0 is written
to the device.
Read Time Slots
The device can only transmit data to the master when
the master issues read time slots. Therefore, the master
must generate read time slots immediately after issuing
a Read Scratchpad 1 command or Read Power Supply
command, so that the device can provide the requested
data. In addition, the master can generate read time
slots after issuing a Convert T command to verify the
operation status as explained in the MAX31826 Function
Commands section.
All read time slots must be 60Fs (min) in duration with a
1Fs (min) recovery time between slots. A read time slot
is initiated by the master device pulling the 1-Wire bus
low for a minimum of 1Fs (t
INIT
) and then releasing the
bus (Figure 11). After the master initiates the read time
slot, the device begins transmitting a 1 or 0 on bus. The
device transmits a 1 by leaving the bus high and trans-
mits a 0 by pulling the bus low. When transmitting a 0,
the device releases the bus by the end of the time slot,
and the pullup resistor pulls the bus back to its high idle
state. Output data from the device is valid for 15Fs after
the falling edge that initiated the read time slot. Therefore,
the master must release the bus and then sample the bus
state within 15Fs from the start of the slot.
Figure 12 illustrates that the sum of t
INIT
, t
RC
, and the
master sample window must be less than 15Fs for a read
time slot. t
RC
is the rise time due to the resistive and
capacitive characteristics of the bus. Figure 13 shows
that system timing margin is maximized by keeping t
INIT
and t
RC
as short as possible and by locating the master
sample time during read time slots towards the end of
the 15Fs period.
Figure 10. Initialization Timing
V
PU
1-Wire BUS
MASTER Tx RESET PULSE
480祍 MINIMUM
MASTER Rx
480祍 MINIMUM
MAX31826 Tx PRESENCE PULSE
60祍 TO 240祍
MAX31826 WAITS
15祍 TO 60祍
GND
BUS MASTER PULLING LOW
MAX31826 PULLING LOW
RESISTOR PULLUP
相关PDF资料 |
PDF描述 |
|---|---|
| VI-21Z-CX-F1 | CONVERTER MOD DC/DC 2V 30W |
| 180-062-213R021 | CONN DB62 FEML HD DIP SLD NICKEL |
| EZ312-8AP | BATTERY COIN ZINC AIR 1.4V 8PK |
| HWS150-24/HD | PWR SUP IND 24V 156W 6.5A |
| ABC43DREF-S734 | CONN EDGECARD 86POS .100 EYELET |
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: |
发布紧急采购，3分钟左右您将得到回复。