DS2490Y Maxim Integrated Products, DS2490Y Datasheet - Page 42

• Manufacturer Part Number: DS2490Y
• Description: IC BRIDGE CLIP USB TO 1-W 24SOIC
• Manufacturer: Maxim Integrated Products

Specifications of DS2490Y

• Applications: USB
• Interface: 1-Wire
• Voltage - Supply: 3 V ~ 5.5 V
• Package / Case: 24-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

COMMUNICATION COMMANDS
BYTE I/O
BLOCK I/O
Setup Packet Encoding:
Setup Packet Encoding:
bmRequestType
bmRequestType
bRequest
bRequest
wLength
wLength
wValue
wValue
wIndex
wIndex
0x40
COMM_CMD
byte 2:
byte 1:
byte 2 – 0x00 (unused)
byte 1 – data byte to be sent to the 1-Wire bus. To read only, the byte
should be 0xFF.
0x0000
0x40
COMM_CMD
byte 2:
byte 1:
byte 2 – block size (HI), most significant byte
byte 1 – block size (LOW), least significant byte
0x0000
0
0
0
0
42 of 50
byte 2
byte 2
byte 2
byte 2
0
1
0
1
0
0
0
1
SPU
SPU
1
1
0
0
0
0
NTF
NTF
byte 1
byte 1
byte 1
byte 1
0
1
ICP
ICP
1
0
RST
IM
IM
0