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参数资料
| 型号： | MPL115A1T2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC BAROMETER SPI DGTL MINI 8LGA |
| 标准包装： | 5,000 |
| 压力类型： | 绝对 |
| 工作压力： | 7.2 PSI ~ 16.6 PSI，50 ~ 115 kPa |
| 输出： | 数字 |
| 精确度： | ±1% |
| 电源电压： | 2.375 V ~ 5.5 V |
| 端接类型： | PCB |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-TLGA |
The polynomial can be evaluated ( Equation 1 ) as a sequence of 3 MACs:
Pcomp = a0 + ( b1 + c12 ? Tadc ) ? Padc + b2 ? Tadc
b1
c12
Tadc
a0
Padc
a1
y1
b2
y
PComp
Tadc
Please refer to Freescale application note AN3785 for more detailed notes on implementation.
3.4
SPI Device Read/Write Operations
All device read/write operations are memory mapped. Device actions e.g. “Start Conversions” are controlled by writing to the
appropriate memory address location. All memory address locations are 6-bit (see Table 2 ).
The 8-bit command word comprises:
? the most significant bit which is the Read/Write identifier which is '1' for read operations and '0' for write operations.
? the 6-bit address (from Table 2 );
? the least significant bit which is not used and is don't care (X).
The device write commands are shown in Table 3 .
Table 3. SPI Write Command
Start Conversions
Command
Binary
0010010X
HEX (1)
0x24
X = don’t care
1. The command byte needs to be paired with a 0x00 as part of the SPI exchange to complete the passing of Start
Conversions .
The actions taken by the part in response to each command are as follows:
Table 4. SPI Write Command Description
Command
Start Conversions
Action Taken
Wake main circuits. Start clock. Allow supply stabilization time. Select pressure sensor input.
Apply positive sensor excitation and perform A to D conversion. Select temperature input.
Perform A to D conversion. Load the Pressure and Temperature registers with the result. Shut
down main circuits and clock.
MPL115A1
Sensors
Freescale Semiconductor, Inc.
7
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相关代理商/技术参数 |
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|---|---|
| MPL115A2 | 功能描述:板上安装压力/力传感器 12C VERSION PEGASUS RoHS:否 制造商:Honeywell 工作压力:0 bar to 4 bar 压力类型:Gage 准确性:+ / - 0.25 % 输出类型:Digital 安装风格:Through Hole 工作电源电压:5 V 封装 / 箱体:SIP 端口类型:Dual Radial Barbed, Same sides |
| MPL115A2 | 制造商:Freescale Semiconductor 功能描述:IC MINI I2C DIGITAL BAROMETER 50 to 11 |
| MPL115A2_10 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Miniature I2C Digital Barometer |
| MPL115A2_13 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Miniature I2C Digital Barometer |
| MPL115A2T1 | 功能描述:板上安装压力/力传感器 Miniature I2C Digital Barometer RoHS:否 制造商:Honeywell 工作压力:0 bar to 4 bar 压力类型:Gage 准确性:+ / - 0.25 % 输出类型:Digital 安装风格:Through Hole 工作电源电压:5 V 封装 / 箱体:SIP 端口类型:Dual Radial Barbed, Same sides |
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