IDT77V107L25PFI8 IDT, Integrated Device Technology Inc, IDT77V107L25PFI8 Datasheet - Page 21

• Manufacturer Part Number: IDT77V107L25PFI8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT77V107L25PFI8

• Data Rate: 25.6/51.2Mbps
• Number Of Channels: 1
• Type Of Atm Phy Interface: 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: 100
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Utility Bus Read Cycle
IDT77V107
Tas
Tcsrd
Tah
Tapw
Ttria
Trdpw
Tdh
Tch
Ttrid
Trd
Tar
Trdd
Name
AD[7:0]
(output)
AD[7:0]
ALE
WR
AD[7:0]
CS
(input)
ALE
RD
CS
10
0
5
10
____
20
0
0
____
____
5
0
Min
____
____
____
____
0
____
____
____
10
18
____
____
Max Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Address setup to ALE
Chip select to read enable
Address hold to ALE
ALE min pulse width
Address tri-state to RD assert
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
Address
Tas
Tapw
Description
Tas
Tapw
Address
Figure 18 Utility Bus Read Cycle
Tah
Figure 19 Utility Bus Write Cycle
Tcswr
Tah
Tcsrd
Tar
21 of 24
Utility Bus Write Cycle
Tacswr
Tdws
Tch
Taw
Tapw
Tas
Tah
Twrpw
Tdwh
Name
Taw
Trdd
Twrpw
Tdws
10
5
0
20
20
10
0
20
Data (input)
10
Min
Trdpw
Trd
____
____
____
____
____
____
____
____
____
Max
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
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
Data
Tdwh
Description
Tch
Tch
December 2004
Ttrid
Tdh
3505 drw 44
3505 drw 43