CXA1875AM 查看數據表（PDF） - Sony Semiconductor

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CXA1875AM

8-bit D/A Converter Compatible with I2C Bus

Sony Semiconductor 

CXA1875AP/AM

• I2C data write (Write from I2C controller to IC)

SDA

SCL

MSB

1

2

3

S

MSB

LSB HIZ

4

5

6

Address

AT L during write

MSB

HIZ

LSB HIZ

7

8

9

1

8

9

ACK

Sub Address

ACK

HIZ

1

8

9

1

8

9

DATA (n)

ACK

DATA (n+1)

ACK

DATA (n+2)

HIZ

HIZ

8

9

DATA

ACK

1

DATA

8

9

P

ACK

• I2C data read (Read from IC to I2C controller)

∗ The number of data that can be

transferred at a time is confined

to units of 8-bit that can be set

as required.

Sub Address is incremented

automatically.

SDA

At H during read

HIZ

SCL

1

S

6

7

8

9

1

Address

ACK

7

8

9

DATA

P

ACK

• Read timing

MSB

LSB

IC output SDA

SCL

9

1

2

3

4

5

6

7

8

9

Read timing

ACK

DATA

ACK

∗ Data read is performed with SCL rise.

—8—

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