IDT72V835L15PF IDT, Integrated Device Technology Inc, IDT72V835L15PF Datasheet - Page 21

• Manufacturer Part Number: IDT72V835L15PF
• Description: IC FIFO SYNC 2048X18 128QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Vr

Specifications of IDT72V835L15PF

• Function: Asynchronous, Synchronous
• Memory Size: 36.8K (2K x 18)
• Data Rate: 67MHz
• Access Time: 15ns
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72V835L15PF

NOTES:
1. t
2. LD = HIGH.
3. Select this mode by setting (FL, RXI, WXI) = (0,1,0) or (1,1,0) during Reset.
Q
D
IDT72V805/72V815/72V825/72V835/72V845
3.3 V CMOS DUAL SyncFIFO™ 256 x 18, 512 x 18, 1,024 x 18, 4,096 x 18
D
NOTES:
1. t
2. LD = HIGH
3. Select this mode by setting (FL, RXI, WXI) = (0,1,0) or (1,1,0) during Reset.
WCLK
RCLK
0
0
WCLK
0
edge of RCLK and the rising edge of WCLK is less than t
WEN
RCLK
SKEW1
REN
edge of RCLK and the rising edge of WCLK is less than t
-
- Q
SKEW1
- D
WEN
REN
D
FF
OE
FF
17
17
17
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go HIGH after one WCLK cycle plus t
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go HIGH after one WCLK cycle plus t
LOW
DATA IN OUTPUT REGISTER
t
ENS
NO WRITE
t
SKEW1
1
Figure 25. Write Cycle Timing with Double Register-Buffered FF FF FF FF FF (IDT Standard Mode)
t
(1)
SKEW1
t
CLKH
Figure 24. Double Register-Buffered Full Flag Timing (IDT Standard Mode)
t
ENH
(1)
t
A
1
t
CLK
SKEW1
SKEW1
t
CLKL
, then the FF deassertion time may be delayed an extra WCLK cycle.
. then the FF deassertion may be delayed an extra WCLK cycle.
2
t
WFF
2
t
DS
t
WFF
21
Wd
t
DATA READ
WFF
DATAIN VALID
t
ENS
t
NO WRITE
t
ENS
DS
t
SKEW1
t
DH
t
ENH
(1)
t
ENH
COMMERCIAL AND INDUSTRIAL
t
A
t
WFF
1
TEMPERATURE RANGES
WFF
RFF
NO OPERATION
. If the time between the rising
. If the time between the rising
FEBRUARY 11, 2009
NEXT DATA READ
DATA WRITE
2
t
WFF
4295 drw 25
4295 drw 24
t
DS