IDT72420L25TP IDT, Integrated Device Technology Inc, IDT72420L25TP Datasheet - Page 7

• Manufacturer Part Number: IDT72420L25TP
• Description: IC FIFO 64X8 SYNC 25NS 28DIP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 7200r

Specifications of IDT72420L25TP

• Function: Synchronous
• Memory Size: 512 (64 x 8)
• Data Rate: 67MHz
• Access Time: 25ns
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72420L25TP

NOTE:
1. t
NOTE:
1. When t
Q
Q
IDT72420/72200/72210/72220/72230/72240 CMOS SYNCFIFO™
64 x 8, 256 x 8, 512 x 8, 1,024 x 8, 2,048 x 8, 4,096 x 8
D
WCLK
WCLK
RCLK
RCLK
0
0
0
WEN
WEN
REN
REN
rising edge of RCLK is less than t
When
The Latency Timing apply only at the Empty Boundary (EF = LOW).
- Q
- Q
SKEW1
- D
OE
OE
EF
EF
7
7
7
t
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 WCLK and the
SKEW1
SKEW1
≥ minimum specification, t
< minimum specification, t
t
ENS
SKEW1
t
OLZ
t
DS
, then EF may not change state until the next RCLK edge.
FRL
t
FRL
ENH
t
ENS
maximum = 2t
maximum = t
t
CLKH
D0
t
REF
(first valid write)
t
t
A
SKEW1
t
CLK
OE
CLK
Figure 5. First Data Word Latency Timing
+ t
+ t
t
SKEW1
SKEW1
CLK
NO OPERATION
Figure 4. Read Cycle Timing
or t
t
CLK
t
OLZ
FRL
t
REF
+ t
(1)
t
SKEW1
CLKL
7
t
ENS
D1
t
OE
t
VALID DATA
SKEW1
t
(1)
A
t
REF
D2
COMMERCIAL TEMPERATURE RANGE
t
OHZ
D0
t
A
JANUARY 8, 2009
D3
D1
2680 drw 07
2680 drw 06