IDT72T6480 Integrated Device Technology, IDT72T6480 Datasheet - Page 42

• Manufacturer Part Number: IDT72T6480
• Description: X48 Sequential Flow-control Device Up To 1gigabit
• Manufacturer: Integrated Device Technology

IDT72T6480 2.5V, SEQUENTIAL FLOW-CONTROL DEVICE
x12, x24, x48 BIT WIDE CONFIGURATION
Symbol
t
t
t
t
t
t
t
t
t
t
Aa
CYC
CYCH
CYCL
DH
DS
RPE
EFa
FFa
PAEa
NOTES:
1. Settings: OE = LOW, RCS = LOW, WCS = LOW, FWFT = LOW, ASYR = LOW, and ASYW = LOW.
2. Asynchronous read is available in IDT standard mode only.
NOTES:
1. Settings: OE = LOW, RCS = LOW, WCS = LOW, FWFT = LOW, ASYR = LOW, and ASYW = LOW.
2. Asynchronous read is available in IDT standard mode only.
NOTES:
1. n = PAE offset, see Table 11 for information on PAE offset values.
2. Asynchronous read is available in IDT standard mode only.
Q[47:0]
Q[47:0]
D[47:0]
Q[47:0]
D[47:0]
PAE
WR
RD
RD
FF
Data Access Time
Cycle Time
Cycle HIGH Time
Cycle LOW Time
Data Hold Time
Data Setup Time
Rising Edge to EF
Rising Edge to FF
Rising Edge to PAE
Read Pulse after EF HIGH
WR
EF
RD
Parameter
Word n - 3
Figure 28. Asynchronous Read and PAE Flag - IDT Standard Mode
Figure 26. Asynchronous Empty Boundary - IDT Standard Mode
Figure 27. Asynchronous Full Boundary - IDT Standard Mode
t
DS
t
W
DS
Word 0
D
t
t
Aa
t
CYCH
DH
t
t
FFa
DH
n words or less in Memory
t
t
EFa
CYC
Previous word in register
Previous word in register
t
t
CYCL
Word n - 2
DS
Word 1
t
t
Aa
DH
42
(1)
(x24 or x12 I/O only) (x48 I/O width only)
t
RPE
Min.
0.6
4.5
4.5
0.5
10
—
—
—
2
8
7-5ns
Word n - 1
Max.
—
—
—
—
—
—
8
8
8
8
Min.
t
0.6
0.5
2.5
12
—
—
—
10
PAEa
t
5
5
t
t
Aa
Aa
FFa
t
t
Aa
EFa
7-5ns
Max.
10
—
—
—
—
—
10
10
10
—
n words or more in Memory
COMMERCIAL AND INDUSTRIAL
Word 0
Word n
t
Aa
Word 0
Min.
TEMPERATURE RANGES
0.5
3.5
20
—
—
—
14
1
8
8
10ns
6358 drw35
6358 drw36
6358 drw34
OCTOBER 10, 2005
Word 1
Max.
12
—
—
—
—
—
14
14
14
—
(1)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns