參數(shù)資料
型號： MCP4726A0T-E/CH
廠商： Microchip Technology
文件頁數(shù)： 50/86頁
文件大?。?/td> 0K
描述： IC DAC 12BIT NV EEP I2C SOT-23-6
標(biāo)準(zhǔn)包裝： 1
設(shè)置時間： 6µs
位數(shù)： 12
數(shù)據(jù)接口： EEPROM，I²C，串行
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 單電源
功率耗散（最大）： 452mW
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： SOT-23-6
供應(yīng)商設(shè)備封裝： SOT-23-6
包裝： 標(biāo)準(zhǔn)包裝
輸出數(shù)目和類型： 1 電壓，單極
采樣率（每秒）： *
其它名稱： MCP4726A0T-E/CHDKR
MCP4706/4716/4726
DS22272C-page 54
2011-2012 Microchip Technology Inc.
6.5
READ COMMAND
This command reads all the device memory. This
includes the volatile and nonvolatile (EEPROM) DAC
register values and Configuration bits, and the volatile
status bits.
This command is executed when the I2C control byte’s
Read/Write bit is a ‘1’ (read).
This command has two different formats based on the
resolution of the device. The 12-bit and 10-bit devices
use the format in Figure 6-5, while the 8-bit device uses
the format in Figure 6-6.
The 2nd byte (Configuration bits) indicates the current
condition of the device operation. The RDY/BSY bit
indicates EEPROM writing status.
FIGURE 6-5:
Read Command Format for 12-bit DAC (MCP4726) and 10-bit DAC (MCP4716).
Device Addressing
Note 1: The 2nd-7th bytes can be repeated after the 7th byte by continued clocking before issuing Stop bit.
2: ACK bit generated by MCP47X6.
3: ACK bit generated by I2C Master.
b15 b14 b13 b12 b11 b10 b09 b08 b07 b06 b05 b04 b03 b02 b01 b00
MCP4726
D11 D10 D09 D08 D07 D06 D05 D04 D03 D02 D01 D00
0
MCP4716
D09 D08 D07 D06 D05 D04 D03 D02 D01 D00
0
SDA
SCL
A2 A1 A0
11
0
1
0
PD1 PD0
G
Data bits (16 bits) (3rd + 4th bytes, and 6th + 7th bytes)
Start bit
ACK bit (2)
Read/Write bit (Read)
S
A
R/W
Legend:
D11:D00 = 12-bit data for MCP4726 device
D09:D00 = 10-bit data for MCP4716 device
0
VREF1
VREF0
A
RDY POR
Vol. Data bits (8 bits) (4th byte)
b08
0 b07 b06 b05 b04 b03 b02 b01 b00
0
A
0 b15 b14 b13 b12 b11 b10 b09
A
Vol. Data bits (8 bits) (3rd byte)
ACK bit (3)
Note 1
Stop bit
A/N
P
ACK/NACK bit (4)
NV Data bits (8 bits) (7th byte)
b08
0 b07 b06 b05 b04 b03 b02 b01 b00 0
/1
A
0 b15 b14 b13 b12 b11 b10 b09
A
NV Data bits (8 bits) (6th byte)
ACK bit (3)
PD1 PD0
G
1
VREF1
VREF0
RDY POR
Vol.
Vol. Configuration
Status
bits
Vol.
NV Configuration
Status
bits
4: ACK/NACK bit generated by I2C Master.
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