DS2482S-800+T&R Maxim Integrated Products, DS2482S-800+T&R Datasheet - Page 18

• Manufacturer Part Number: DS2482S-800+T&R
• Description: IC MASTER I2C-1WIRE 8CH 16-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of DS2482S-800+T&R

• Controller Type: I²C Bus Controller
• Interface: I²C
• Voltage - Supply: 3.3 V, 5V
• Current - Supply: 750µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Data Direction Codes
I²C Communication Examples
Device Reset, e.g., after power-up
This example includes an optional read access to verify the success of the command.
Write Configuration, e.g., before starting 1-Wire activity power-up
Case A: 1-Wire idle (1WB = 0)
This example includes an optional read access to verify the success of the command.
Case B: 1-Wire busy (1WB = 1)
The master should stop and restart as soon as the DS2482 does not acknowledge the command code.
Channel Select, e.g., to select another 1-Wire channel
Case A: 1-Wire idle (1WB = 0)
E1h is the valid channel selection code for IO1. This example includes an optional read access to verify the
success of the command.
Case B: 1-Wire idle (1WB = 0), invalid channel selection code
E5h is an invalid channel selection code.
Case C: 1-Wire busy (1WB = 1)
The master should stop and restart as soon as the DS2482 does not acknowledge the command code.
Set Read Pointer, e.g., to read from another register
Case A: valid read pointer code
C3h is the valid read pointer code for the configuration register.
Case B: invalid read pointer code
E5h is an invalid read pointer code.
Master-to-Slave
S
S
S
S
S
S
S
S
AD,0
AD,0
AD,0
AD,0
AD,0
AD,0
AD,0
AD,0
Slave-to-Master
A
A
A
A
A
A
A
A
WCFG
WCFG
DRST
CHSL
CHSL
CHSL
SRP
SRP
A\
A\
A
A
A
A
A
A
<byte>
C3h
E1h
E5h
E5h
Sr
P
P
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AD,1
A\
A\
A
A
A
Sr
Sr
A
P
P
P
<byte>
AD,1
AD,1
A\
A
A
<byte>
<byte>
P
A\
A\
P
P