IDT77105L25TF IDT, Integrated Device Technology Inc, IDT77105L25TF Datasheet - Page 20

• Manufacturer Part Number: IDT77105L25TF
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT77105L25TF

• Data Rate: 25.6Mbps
• Number Of Channels: 1
• Type Of Atm Phy Interface: UTOPIA
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 64
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Utility Bus Read Cycle
Utility Bus Read Cycle
Utility Bus Read Cycle
Utility Bus Read Cycle
Tas
Tcsrd
Tah
Tapw
Ttria
Trdpw
Tdh
Tch
Ttird
Trd
Tar
Trdd
IDT77105
Name
ADDR/DATA
ADDR/DATA
(output)
(input)
R DB
ALE
Min.
10
0
5
10
—
20
0
0
—
5
5
0
CS
—
—
—
—
0
—
—
—
10
18
—
—
Max.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
R ESET
TxOSC
Address setup to ALE
Chip select to read enable
Address hold to ALE
ALE min pulse width
Address tri-state to RDB assert
Min. RDB pulse width
Data Valid hold time
RDB deassert to CS deassert
RDB deassert to data tristate
Read Data access
ALE low to start of read
Start of read to Data low-Z
Tas
Tapw
Address
Comment
Tcyc
Figure 18 TxOSC and Reset Timing
Trpw
Figure 19 Utility Bus Read Cycle
Tah
Tcsrd
Tar
Utility Bus Write Cycle
Utility Bus Write Cycle
Utility Bus Write Cycle
Utility Bus Write Cycle
20 of 24
Tapw
Tas
Tah
Tcswr
Twrpw
Tdws
Tdwh
Tch
Taw
Name
Tch
Trdd
Tcl
Min.
10
10
5
0
20
20
10
0
20
Trdpw
Trd
—
—
—
—
—
—
—
—
—
Max.
3445 drw 29
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
.
ALE min pulse width
Address set up time to ALE
Address hold time to ALE
Min. WRB pulse width
Write Data set up time
Write Data hold time
WRB deassert to CS deassert
ALE low to end of write
CS Assert to WRB
Data
September 11, 2000
Comment
Tch
Ttrid
Tdh
3445 drw 21