参数资料
型号: MCP3425A0T-E/CH
厂商: Microchip Technology
文件页数: 8/38页
文件大小: 0K
描述: IC ADC 16BIT I2C PROGBL SOT23-6
产品培训模块: MCP3901 Analog Front End
标准包装: 1
位数: 16
数据接口: I²C,串行
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
输入数目和类型: 2 个单端,双极;1 个差分,双极
产品目录页面: 672 (CN2011-ZH PDF)
配用: MCP3425EV-ND - EVALUATION BOARD FOR MCP3425
其它名称: MCP3425A0T-E/CHDKR
MCP3425
DS22072B-page 16
2009 Microchip Technology Inc.
FIGURE 5-1:
MCP3425 Address Byte.
5.3.2
WRITING A CONFIGURATION BYTE
TO THE DEVICE
When the Master sends an address byte with the R/W
bit
low
(R/W = 0),
the
MCP3425
expects
one
configuration byte following the address. Any byte sent
after this second byte will be ignored. The user can
change the operating mode of the device by writing the
configuration register bits.
If the device receives a write command with a new
configuration setting, the device immediately begins a
new conversion and updates the conversion data.
FIGURE 5-2:
Timing Diagram For Writing To The MCP3425.
Start bit
Read/Write bit
Address Byte
R/W ACK
1
0
1
X
Device Code
Address Bits (Note 1)
Address
Acknowledge bit
Address
Note
1:
Specified by customer and programmed at the
factory. If not specified by the customer,
programmed to ‘000’.
9
1
9
1
Stop Bit by
11
0
1A2 A1 A0
R/W
ACK by
MCP3425
RDY
C1 C0
O/C
S1 S0 G1 G0
1st Byte:
2nd Byte:
Master
ACK by
MCP3425
MCP3425 Address Byte
Configuration Byte
Start Bit by
Master
with Write command
Note:
– Stop bit can be issued any time during writing.
– MCP3425 device code is 1101.
– Address Bits A2- A0 = 000 are programmed at factory unless customer requests different codes.
SCL
SDA
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