MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 31

• Manufacturer Part Number: MCP4728-E/UN
• Description: IC DAC 12BIT W/I2C 10-MSOP
• Manufacturer: Microchip Technology

Specifications of MCP4728-E/UN

• Number Of Converters: 4
• Settling Time: 6µs
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Number Of Bits: 12
• Data Interface: I²C
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Dac Outputs: 4
• Resolution: 12 bit
• Interface Type: I2C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Current: 110 mA
• Voltage Reference: 2.048 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP4728EV - BOARD EVAL 12BIT 4CH DAC MCP4728
• Power Dissipation (max): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.4
The device acknowledges the general call address
command (0x00 in the first byte). The meaning of the
general call address is always specified in the second
byte. The I
“00000000” (00h) in the second byte. Refer to the
Philips I
Call specifications.
The MCP4728 device supports the following I
General Calls:
• General Call Reset
• General Call Wake-Up
• General Call Software Update
• General Call Read Address Bits
FIGURE 5-3:
5.4.2
If the second byte is “00001001” (09h), the device will
reset the Power-Down bits (PD1, PD0 = 0,0).
FIGURE 5-4:
© 2010 Microchip Technology Inc.
Start
Start
Note 1: Resets Power-Down bits at this falling edge of the last ACK clock bit.
Note 1: At this falling edge of the last ACK clock bit:
2
I
C document for more details of the General
2
C General Call Commands
2
C specification does not allow the use of
GENERAL CALL WAKE-UP
1
1
a. Startup Timer starts a reset sequence and
b. EEPROM data is loaded into the DAC Input and Output Registers immediately.
Data (SDA Line)
Data (SDA Line)
Clock Pulse (CLK Line)
Clock Pulse (CLK Line)
2
2
(General Call Command)
(General Call Command)
General Call Reset.
General Call Wake-Up.
3
3
1st Byte
1st Byte
4
4
5
5
6
6
7
7
8
8
2
C
9
9
1
(Command Type = General Call Wake-Up)
1
5.4.1
The General Call Reset occurs if the second byte is
“00000110” (06h). At the acknowledgement of this
byte, the device will abort the current conversion and
perform the following tasks:
• Internal Reset similar to a Power-on Reset (POR).
• V
(Command Type = General Call Reset)
The contents of the EEPROM are loaded into
each DAC input and output registers immediately
the LDAC pin condition
2
2
OUT
3
3
will be available immediately regardless of
GENERAL CALL RESET
ACK (MCP4728)
ACK (MCP4728)
2nd Byte
2nd Byte
4
4
5
5
6
6
MCP4728
7
7
8
DS22187E-page 31
8
9
Note 1
Note 1
9
Stop
Stop