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| 型号： | MCP355XDV-MS1 |
| 厂商： | Microchip Technology |
| 文件页数： | 18/36页 |
| 文件大小： | 0K |
| 描述： | BOARD DEV SENSOR APP MCP355X |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 22 |
| 数据接口： | 串行 |
| 输入范围： | ±0.3 V |
| 工作温度： | -40°C ~ 125°C |
| 已用 IC / 零件： | MCP355x |
| 已供物品： | 板，CD，样品 |
| 产品目录页面： | 672 (CN2011-ZH PDF) |
| 相关产品： | MCP3550T-60E/SN-ND - IC ADC 22BIT 2.7V 1CH 8SOIC MCP3550T-60E/MS-ND - IC ADC 22BIT 2.7V 1CH 8MSOP MCP3550T-50E/SN-ND - IC ADC 22BIT 2.7V 1CH 8SOIC MCP3550T-50E/MS-ND - IC ADC 22BIT 2.7V 1CH 8MSOP MCP3550-60E/SN-ND - IC ADC 22BIT 2.7V 1CH 8SOIC MCP3550-60E/MS-ND - IC ADC 22BIT 2.7V 1CH 8MSOP MCP3550-50E/SN-ND - IC ADC 22BIT 2.7V 1CH 8SOIC MCP3550-50E/MS-ND - IC ADC 22BIT 2.7V 1CH 8MSOP MCP3553T-E/SN-ND - IC ADC 22BIT 2.7V 1CH SPI 8SOIC MCP3553T-E/MS-ND - IC ADC 22BIT 2.7V 1CH SPI 8MSOP 更多... |
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2009 Microchip Technology Inc.
DS21950E-page 25
MCP3550/1/3
5.5
Using The MCP3550/1/3 with
Microcontroller (MCU) SPI Ports
It is required that the microcontroller SPI port be
configured to clock out data on the falling edge of clock
and latch data in on the rising edge. Figure 5-6 depicts
the operation shown in SPI mode 1,1, which requires
that the SCK from the MCU idles in the High state,
while Figure 5-7 shows the similar case of SPI Mode
0,0, where the clock idles in the Low state. The
waveforms in the figures are examples of an MCU
operating the SPI port in 8-bit mode, and the
MCP3550/1/3 devices do not require data in 8-bit
groups.
In SPI mode 1,1, data is read using only 24 clocks or
three byte transfers. The data ready bit must be read
by testing the SDO/RDY line prior to a falling edge of
the clock.
In SPI mode 0,0, data is read using 25 clocks or four
byte transfers. Please note that the data ready bit is
included in the transfer as the first bit in this mode.
FIGURE 5-6:
SPI Communication – Mode 1,1.
FIGURE 5-7:
SPI Communication – Mode 0,0.
CS
SCK
SDO/RDY
MCU
Data stored into MCU
receive
register
after
transmission of first byte
Receive
Buffer
Data
stored
into
MCU
receive
register
after
transmission of second byte
Data stored into MCU
receive
register
after
transmission of third byte
DO O 21 20 19 18 17
16
15 14 13 12 11 10 9
8
76 5 4 3 2 1
0
OL OH 21 20 19 18 17 16
15 14 13 12 11 10 9
8
76
5
4
3 2
1
0
RH L
CS
SCK
SDO/RDY
MCU
Data stored into MCU
receive
register
after
transmission of first byte
Receive
Buffer
Data
stored
into
MCU
receive
register
after
transmission of second byte
Data stored into MCU
receive
register
after
transmission of third byte
Data stored into MCU
receive
register
after
transmission of fourth byte
DR OO 21 20 19 18 17
16
14 13 12 11 10 9
65 4 3 2
0
OH OL 21 20 19 18 17
15 14 13 12 11 10 9
76
5
4
3 2
1
0
DR
8
16
15
7
8
1
HL
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| MCP3901 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Two Channel Analog Front End |
| MCP3901_10 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Two-Channel Analog Front End |
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| MCP3901A0-E/ML | 功能描述:模数转换器 - ADC Dual Ch Energy Meter Frnt End SPI I-face RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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