IDT77V1254L25PG IDT, Integrated Device Technology Inc, IDT77V1254L25PG Datasheet - Page 15

• Manufacturer Part Number: IDT77V1254L25PG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT77V1254L25PG

• 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: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 144
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

IDT77V1254L25
RX +
RX
UTOPIA
or
DPI Interface
Interface
Decoding
NRZI
Synthesizer
Recovery
3 Cells
32.0MHz
Clock
OSC
& PLL
Clock
HEC Gen. &
PHY-ATM
Interface
Insertion
Control,
5
Figure 4 TC Transmit Block Diagram
Figure 5 TC Receive Block Diagram
4
Decoding
5b/4b
Start of Cell
Pseudo Random
Nibble Generator
PHY-ATM
Interface
Control -
15 of 48
RECV
Clock Input
Scramble
Scrambler
Nibble
PRNG
OSC
3 Cells
4
Start of Cell
4
4
RXRef
Next
Command
Detection,
& Decode
Removal,
4
Byte
UTOPIA
or
DPI Interface
Interface
Reset
Encoding
Command
Encoding
Insertion
4
1
NRZI
4b/5b
Byte
4
4
Scramble
Scrambler
Nibble
PRNG
De-
Reset
TXRef (8kHz)
3505 drw 06
Next
TX
+
TX -
3505 drw 05
+
.
.
December 2004