MCP4725A0TE/CH MICROCHIP [Microchip Technology], MCP4725A0TE/CH Datasheet - Page 19
![no-image](/images/no-image-200.jpg)
MCP4725A0TE/CH
Manufacturer Part Number
MCP4725A0TE/CH
Description
12-Bit Digital-to-Analog Converter with EEPROM Memory in SOT-23-6
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.MCP4725A0TECH.pdf
(42 pages)
- Current page: 19 of 42
- Download datasheet (2Mb)
FIGURE 6-2:
© 2007 Microchip Technology Inc.
Start Bit
(B) Write DAC Register and EEPROM: (C2, C1, C0) = (0,1,1)
(A) Write DAC Register: (C2, C1, C0) = (0,1,0) or
• The device updates the V
• For EEPROM Write:
Note 1: RDY/BSY bit stays “low” during the EEPROM write. Any new write command including repeat bytes during the
- The Charge Pump initiates the EEPROM writing sequence at the falling edge of this ACK pulse.
- The RDY/BSY bit (pin) goes “low” at the falling edge of this ACK pulse and back to “high” immediately after
1st byte (Device Addressing)
Device Code Address Bits R/W
1
the EEPROM write is completed.
1
0
EEPROM write mode is ignored.
The RDY/BSY bit sets to “high” after the EEPROM write is completed.
0 A2 A1 A0 0
Write Commands for DAC Input Register and EEPROM.
OUT
C2 C1 C0 X
after this ACK pulse is issued.
C2 C1 C0
Write Command Type:
Write DAC Register: (C2 = 0, C1 = 1, C0 = 0)
Write DAC Register and EEPROM: (C2 = 0, C1 = 1, C0 = 1). See Note 1
ACK (MCP4725)
ACK (MCP4725)
2nd byte
Unused
X
2nd byte
X PD1PD0 X
X PD1 PD0
Repeat Bytes of 2nd - 4th bytes
X
Power Down Selection
D11 D10 D9 D8 D7 D6 D5 D4
D11 D10 D9 D8 D7 D6 D5 D4
Unused
3rd byte
3rd byte
DAC Register Data (12 bits)
D3 D2
D3 D2
ACK (MCP4725)
MCP4725
D1
ACK (MCP4725)
4th byte
D1
D0
4th byte
DS22039C-page 19
D0
X X X X
X X X X
Unused
Stop
Bit
Stop
Bit
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