IDT72V81 IDT [Integrated Device Technology], IDT72V81 Datasheet - Page 5

• Manufacturer Part Number: IDT72V81
• Description: 3.3 Volt CMOS DUAL ASYNCHRONOUS FIFO DUAL 512 x 9, DUAL 1,024 x 9 DUAL 2,048 x 9, DUAL 4,096 X 9
• Manufacturer: IDT [Integrated Device Technology]

NOTES:
1. EF, FF, HF may change status during Reset, but flags will be valid at t
2. W and R = V
HF, FF
D
Q
FF
W
IDT72V81/72V82/72V83/72V84/72V85
R
0
0
-D
-Q
RS
EF
W
W
R
R
8
8
LAST WRITE
IH
around the rising edge of RS.
t
WFF
t
RLZ
t
A
t
WPW
IGNORED
WRITE
t
RC
t
DATA IN VALID
WC
t
DATA OUT VALID
DS
Figure 3. Asynchronous Write and Read Operation
FIRST READ
t
Figure 4. Full Flag From Last Write to First Read
RR
t
DV
t
t
RS
DH
t
WR
RSC
t
t
HFH,
RFF
t
.
RSC
Figure 2. Reset
t
t
EFL
t
A
t
RSS
FFH
t
RPW
5
ADDITIONAL
t
RSS
READS
DATA OUT VALID
DATA IN VALID
WRITE
FIRST
t
RHZ
Commercial Temperature Range
t
RSR
3966 drw 05
3966 drw 04
3966 drw 06