IDT77V1254L25PG IDT, Integrated Device Technology Inc, IDT77V1254L25PG Datasheet - Page 44

• 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

Utility Bus Write Cycle
IDT77V1254L25
(output)
AD[7:0]
AD[7:0]
(input)
ALE
RD
CS
Trdpw
Tdh
Tch
Ttrid
Trd
Tar
Trdd
Tapw
Tas
Tah
Tcswr
Twrpw
Tdws
Tdwh
Tch
Taw
Name
Name
Tas
Tapw
Address
10
10
5
0
20
20
10
0
20
20
0
0
—
—
5
0
Min.
Min.
Figure 43 Utility Bus Read Cycle
—
—
—
—
—
—
—
—
—
—
—
—
10
18
—
—
Max.
Max.
Tah
Tcsrd
Tar
44 of 48
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
Unit
Min. RD pulse width
Data Valid hold time
RD deassert to CS deassert
RD deassert to data tri-state
Read Data access
ALE low to start of read
Start of read to Data low-Z
ALE min pulse widt
Address set up to ALE
Address hold time to ALE
CS Assert to WR
Min. WR pulse width
Write Data set up
Write Data hold time
WR deassert to CS deassert
ALE low to end of write
Trdd
Description
Description
Trdpw
Trd
Data
Tch
Ttrid
Tdh
December 2004
3505 drw 43
.