5

COMMERCIALTEMPERATURERANGE

IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO

512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9

JULY 17, 2006

NOTES:

1.

2.

Figure 4. Full Flag From Last Write to First Read

Figure 2. Reset

Figure 3. Asynchronous Write and Read Operation

LAST WRITE

R

IGNORED

WRITE

FIRST READ

ADDITIONAL

READS

W

FF

3966 drw 06

FIRST

WRITE

R

DATA OUT VALID

DATA OUT VALID

DATA IN VALID

DATA IN VALID

W

3966 drw 05

W

RS

R

EF

HF, FF

3966 drw 04