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DS1805E-010

P1-P3P4-P6P7-P9P10-P10
DS1805
Addressable Digital Potentiometer
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.
Figure 5. 2-Wire Write Protocols
Figure 6. Timing Diagram
ACK
STOP
MSB
OPTIONAL
DATA
BYTE
LSB
POT-1
MSB
START
ACK
ACK
ACK
STOP
CONTROL
BYTE
LSB MSB
COMMAND
BYTE
LSB MSB
DATA
BYTE
LSB
POT-1
R/W = 0
MSB
REGISTER-0
WRITE POT-1
WRITE REGISTER-0 AND POT-1 (SAME VALUE)
START
ACK
ACK
ACK
CONTROL
BYTE
LSB MSB
COMMAND
BYTE
LSB MSB
DATA
BYTE
LSB
REG-0
R/W = 0
0 1 0 1 A2 A1 A0 0
0 1 0 1 A2 A1 A0 0
0 1 0 1 A2 A1 A0 0
101010 01
101010 10
MSB
START
ACK
ACK
ACK
STOP
CONTROL
BYTE
LSB MSB
COMMAND
BYTE
LSB MSB
DATA
BYTE
LSB
REG-0/POT-1 VALUE
R/W = 0
101011 11
SDA
SCL
t
HD:STA
t
LOW
t
HIGH
t
R
t
F
t
BUF
t
HD:DAT
t
SU:DAT
REPEATED
START
t
SU:STA
t
HD:STA
t
SU:STO
t
SP
STOP START
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo
.
Revision History
Pages changed at Rev1: 9, 10
P1-P3P4-P6P7-P9P10-P10

DS1805E-010

Mfr. #:
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Description:
IC POT DIG ADDRESS 10K 14-TSSOP
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