IDT72275 IDT [Integrated Device Technology], IDT72275 Datasheet - Page 20

• Manufacturer Part Number: IDT72275
• Manufacturer: IDT [Integrated Device Technology]

IDT72275/72285 SUPERSYNC FIFO™
32,768 x 18, 65,536 x 18
Q
NOTES:
1. Retransmit setup is complete after
2.
3. W
4. No more than D - 2 may be written to the FIFO between Reset (Master or Partial) and Retransmit setup. Therefore,
5.
WCLK
RCLK
0
Retransmit setup procedure. D = 32,768 for IDT72275 and 65,536 for IDT72285.
EF
OE
- Q
1
goes HIGH at 60 ns + 1 RCLK cycle + t
= first word written to the FIFO after Master Reset, W
= LOW.
n
t
ENS
W
x
t
A
t
ENH
t
EF
ENS
t
RTS
returns HIGH, only then can a read operation begin.
t
RTS
REF
Figure 11. Retransmit Timing (IDT Standard Mode)
.
t
2
t
t
ENH
REF
HF
t
= second word written to the FIFO after Master Reset.
SKEW2
1
W
x+1
2
t
PAF
1
t
ENS
2
COMMERCIAL TEMPERATURE RANGE
t
t
t
A
REF
PAE
(5)
FF
W
will be HIGH throughout the
1
(3)
4674 drw 14
t
t
A
ENH
W
20
2
(3)