MCP4725EV Microchip Technology, MCP4725EV Datasheet - Page 26
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MCP4725EV
Manufacturer Part Number
MCP4725EV
Description
BOARD EVAL FOR MCP4725
Manufacturer
Microchip Technology
Datasheets
1.MCP4725A1T-ECH.pdf
(50 pages)
2.MCP4725EV.pdf
(32 pages)
3.MCP4725A0T-ECH.pdf
(42 pages)
Specifications of MCP4725EV
Number Of Dac's
1
Number Of Bits
12
Outputs And Type
1, Single Ended
Sampling Rate (per Second)
100k ~ 3.4M
Data Interface
I²C
Settling Time
6µs
Dac Type
Voltage
Voltage Supply Source
Single
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
MCP4725
Processor To Be Evaluated
MCP4725
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MCP4725
6.2
If the R/W bit is set to a logic “high”, then the device
outputs on SDA pin, the DAC register and EEPROM
data.
register and EEPROM data. The 2nd byte in
3
operation. The RDY/BSY bit indicates EEPROM
writing status. The RDY/BSY bit stays low during
EEPROM writng and high when the writing is
completed.
FIGURE 6-3:
DS22039D-page 26
START Bit
indicates the current condition of the device
Device Code Address Bits
Note 1: Bytes 2 - 6 are repeated in repeat bytes after byte 6.
Figure 6-3
Read Command
1
READ COMMAND
1
2: X is don’t care bit.
0
1st byte
0 A2 A1 A0 1
shows an example of reading the
Read Command and Output Data Format.
R/W
RDY/
BSY
(1: Completed, 0: Incomplete)
EEPROM Write Status Indicate Bit
Current Settings
in DAC Register
See Note 2
POR
ACK (MCP4725)
2nd byte
Figure 6-
X X X PD1 PD0 X
X PD1 PD0 X D11 D10 D9 D8
D11 D10 D9 D8 D7 D6 D5 D4
5th byte
ACK (Master)
3rd byte
DAC register Data (12 bits)
EEPROM Data
D7 D6
© 2009 Microchip Technology Inc.
ACK (Master)
D5
D3 D2
D4
ACK (Master)
6th byte
D3 D2 D1 D0
D1
4th byte
D0
X X X X
STOP
Bit