72201L25J Integrated Device Technology (Idt), 72201L25J Datasheet - Page 9

• Manufacturer Part Number: 72201L25J
• Description: FIFO Mem Sync Dual Depth/Width Uni-Dir 256 x 9 32-Pin PLCC Tray
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 72201L25J

• Package: 32PLCC
• Configuration: Dual
• Bus Directional: Uni-Directional
• Density: 2.25 Kb
• Organization: 256x9
• Data Bus Width: 9 Bit
• Timing Type: Synchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: 0 to 70 °C

NOTE:
1. t
NOTE:
1. When t
©
(If Applicable)
IDT72421/72201/72211/72221/72231/72241/72251 CMOS SyncFIFO™
64 x 9, 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9
Q
REN1,
WCLK
WEN2
and the rising edge of WCLK is less than t
When
The Latency Timings apply only at the Empty Boundary (EF = LOW).
WEN1
RCLK
SKEW1
REN2
0
- Q
Q
D
OE
EF
WCLK
0
WEN2
0
WEN1
REN1,
t
RCLK
REN2
SKEW1
SKEW1
8
is the minimum time between a rising WCLK edge and a rising RCLK edge for EF to change during the current clock cycle. If the time between the rising edge of RCLK
- Q
- D
OE
EF
8
8
≥ minimum specification, t
< minimum specification, t
t
ENS
t
OLZ
FRL
FRL
t
ENH
= t
= 2t
SKEW1
CLK
t
CLK
DS
t
t
+ t
t
ENS
ENS
, then EF may not change state until the next RCLK edge.
+ t
CLKH
SKEW
SKEW
t
t
REF
A
1
t
1 or t
OE
Figure 7. First Data Word Latency Timing
t
SKEW1
CLK
t
CLK
+ t
NO OPERATION
Figure 6. Read Cycle Timing
SKEW
D
0
(First Valid Write)
1
t
OLZ
t
t
FRL
CLKL
t
REF
VALID DATA
(1)
9
t
OHZ
t
ENS
D
t
1
OE
t
SKEW1
(1)
t
A
t
REF
D
2
COMMERCIAL AND INDUSTRIAL
D
0
t
TEMPERATURE RANGES
A
OCTOBER 22, 2008
D
3
2655 drw 08
D
2655 drw 09
1