DS1805 데이터 시트보기 (PDF) - Maxim Integrated

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DS1805

Addressable Digital Potentiometer

Maxim Integrated 

Addressable Digital Potentiometer

REGISTER-0

OPTIONAL

CONTROL

COMMAND

DATA

DATA

BYTE

BYTE

BYTE

BYTE

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

0 1 0 1 A2 A1 A0 0

1 0 10 10 01

REG-0

POT-1

R/W = 0

WRITE POT-1

CONTROL

COMMAND

DATA

BYTE

BYTE

BYTE

MSB

LSB

MSB

LSB

MSB

LSB

0 1 0 1 A2 A1 A0 0

1 0 10 10 10

POT-1

R/W = 0

WRITE REGISTER-0 AND POT-1 (SAME VALUE)

CONTROL

BYTE

MSB

LSB

0 1 0 1 A2 A1 A0 0

COMMAND

BYTE

MSB

LSB

MSB

1 0 1 0 1 1 11

DATA

BYTE

LSB

REG-0/POT-1 VALUE

R/W = 0

Figure 5. 2-Wire Write Protocols

SDA

tBUF

tLOW

SCL

tHD:STA

STOP START

Figure 6. Timing Diagram

tR

tF

tHD:STA

tHD:DAT

tHIGH

tSU:DAT

tSU:STA

REPEATED

START

tSP

tSU:STO

Revision History

Pages changed at Rev1: 9, 10

Package Information

For the latest package outline information, go to

www.maxim-ic.com/DallasPackInfo.

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2002 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

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