DS2490Y Maxim Integrated Products, DS2490Y Datasheet - Page 41

• 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
PULSE
1-WIRE RESET
BIT I/O
Setup Packet Encoding:
Setup Packet Encoding:
Setup Packet Encoding:
bmRequestType
bmRequestType
bmRequestType
bRequest
bRequest
bRequest
wLength
wLength
wLength
wValue
wValue
wValue
wIndex
wIndex
wIndex
0x40
COMM_CMD
byte 2:
byte 1:
0x0000
0x0000
0x40
COMM_CMD
byte 2:
byte 1:
byte 2 – 0x00 (unused)
byte 1 – new speed:
0x02 with SE = 1 after Overdrive Skip ROM
0x01 or 0x00 with SE = 1 in all other cases
don’t care with SE = 0
0x0000
0x40
COMM_CMD
byte 2:
byte 1:
byte 2 – 0x00 (unused)
byte 1 – 0x00 (unused)
0x0000
0
0
0
0
0
0
41 of 50
byte 2
byte 2
byte 2
byte 2
byte 2
PST
CIB
0
0
1
0
0
1
0
0
0
1
SPU
0
1
0
0
0
SE
D
F
0
F
0
NTF
NTF
NTF
byte 1
byte 1
byte 1
byte 1
byte 1
0
0
0
ICP
ICP
ICP
0
1
0
IM
IM
IM
0
0
0