MCP4716 datasheet(46/86 Pages) MICROCHIP

46 / 86 page

MCP4706/4716/4726

DS22272A-page 46

5.3.4

SLOPE CONTROL

The MCP47X6 implements slope control on the SDA

output.

As the device transitions from HS mode to FS mode,

the slope control parameter will change from the HS

specification to the FS specification.

For Fast (FS) and High-Speed (HS) modes, the device

has a spike suppression and a Schmidt trigger at SDA

and SCL inputs.

5.3.5

DEVICE ADDRESSING

The address byte is the first byte received following the

START condition from the master device. The

MCP47X6’s slave address consists of a 4-bit fixed code

(‘1100’) and a 3-bit code that is user specified when the

device is ordered. This allows up to eight MCP47X6

devices on a single I2C bus.

Figure 5-9 shows the I2C slave address byte format,

which contains the seven address bits and a read/write

(R/W) bit. Table 5-2 shows the eight I2C Slave address

options and their respective device order code.

FIGURE 5-9:

Slave Address Bits in the

I2C Control Byte.

TABLE 5-2:

I2C ADDRESS / ORDER CODE

Start bit

Read/Write bit

Address Byte

R/W

ACK

Acknowledge bit

Slave Address

Slave Address (7-bits)

Note: Address Bits (A2:A0) specified at time of device

order, see Table 5-2.

Fixed

User Specified

7-bit I2C

Address

Device Order Code

Comment

‘1100000’

MCP47x6A0-E/xx

MCP47x6A0T-E/xx

Tape and Reel

‘1100001’

MCP47x6A1-E/xx

MCP47x6A1T-E/xx

Tape and Reel

‘1100010’

MCP47x6A2-E/xx

MCP47x6A2T-E/xx

Tape and Reel

‘1100011’

MCP47x6A3-E/xx

MCP47x6A3T-E/xx

Tape and Reel

‘1100100’

MCP47x6A4-E/xx

MCP47x6A4T-E/xx

Tape and Reel

‘1100101’

MCP47x6A5-E/xx

MCP47x6A5T-E/xx

Tape and Reel

‘1100110’

MCP47x6A6-E/xx

MCP47x6A6T-E/xx

Tape and Reel

‘1100111’

MCP47x6A7-E/xx

MCP47x6A7T-E/xx

Tape and Reel

Note 1:

The sample center will generally stock I2C

address ‘1100000’, other addresses may

be available.

‘xx’ in the order code is the device

package code (CH for SOT-23 and MA for

DFN)

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