IDT77V1254L25PGI IDT, Integrated Device Technology Inc, IDT77V1254L25PGI Datasheet - Page 25

• Manufacturer Part Number: IDT77V1254L25PGI
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT77V1254L25PGI

• Data Rate: 25.6/51.2Mbps
• Number Of Channels: 4
• Type Of Atm Phy Interface: DPI/UTOPIA
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Pin Count: 144
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

IDT77V1254L25
P_RCLK
P_RFRM
P_RD(3:0)
P_RCLK
P_RFRM
P_RD(3:0)
P_RCLK
P_RFRM
P_RD(3:0)
P_RCLK
P_RFRM
P_RD(3:0)
(in)
(out)
(out)
(in)
(in)
(out)
(out)
(in)
(out)
(out)
(out)
(out)
Nibble 104
Cell 1
Nibble 104
Cell 1
X
X
Nibble 105
Cell 1
Figure 25 DPI Receive Handshake - ATM Layer Device Suspends Transfer
Nibble 105
Cell 1
X
X
ATM Layer Device Not Ready
77V1254 Not Ready
Figure 26 DPI Receive Handshake - Neither Device Ready
Figure 24 DPI Receive Handshake - Back-to-Back Cells
Figure 23 DPI Receive Handshake - One Cell Received
X
Nibble 0
Nibble 0
Nibble 0
Cell 1
Cell 1
Cell 2
X
Nibble 1
Cell 1
25 of 48
X
Cell 1
X
Nibble 104
Nibble 104
Nibble 1
Cell 1
Cell 1
Cell 2
Nibble 0
Cell 2
Nibble 105
Nibble 105
Nibble 2
Cell 1
Cell 1
Cell 2
Nibble 0
Nibble 3
Cell 2
Cell 2
X
Nibble 1
Cell 2
Nibble 1
Nibble 4
Cell 2
Cell 2
X
December 2004
Nibble 2
3505 drw 25
3505 drw 24
Cell 2
3505 drw 26
3505 drw 27
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