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IDT72V261LA Datasheet

  • IDT72V261LA

  • 3.3 VOLT CMOS SuperSync FIFO?

  • 304.98KB

  • IDT

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3.3 VOLT CMOS SuperSync FIFO鈩?/div>
16,384 x 9
32,768 x 9
FEATURES:
鈥?/div>
IDT72V261LA
IDT72V271LA
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Choose among the following memory organizations:
IDT72V261LA
鈥?/div>
16,384 x 9
IDT72V271LA
鈥?/div>
32,768 x 9
Pin-compatible with the IDT72V281/72V291 and IDT72V2101/
72V2111SuperSync FIFOs
Functionally compatible with the 5 Volt IDT72261/72271 family
10ns read/write cycle time (6.5ns access time)
Fixed, low first word data latency time
5V input tolerant
Auto power down minimizes standby power consumption
Master Reset clears entire FIFO
Partial Reset clears data, but retains programmable settings
Retransmit operation with fixed, low first word data
latency time
Empty, Full and Half-Full flags signal FIFO status
Programmable Almost-Empty and Almost-Full flags, each flag
can default to one of two preselected offsets
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Program partial flags by either serial or parallel means
Select IDT Standard timing (using
EF
and
FF
flags) or First
Word Fall Through timing (using
OR
and
IR
flags)
Output enable puts data outputs into high impedance state
Easily expandable in depth and width
Independent Read and Write clocks (permit reading and writing
simultaneously)
Available in the 64-pin Thin Quad Flat Pack (TQFP) and the 64-
pin Slim Thin Quad Flat Pack (STQFP)
High-performance submicron CMOS technology
Industrial temperature range (鈥?0擄C to +85擄C) is available
擄
擄
DESCRIPTION:
The IDT72V261LA/72V271LA are functionally compatible versions of
the IDT72261/72271 designed to run off a 3.3V supply for very low power
consumption. The IDT72V261LA/72V271LA are exceptionally deep, high
speed, CMOS First-In-First-Out (FIFO) memories with clocked read and
FUNCTIONAL BLOCK DIAGRAM
WEN
D
0
-D
8
WCLK
LD SEN
INPUT REGISTER
OFFSET REGISTER
FF/IR
PAF
EF/OR
PAE
HF
FWFT/SI
WRITE CONTROL
LOGIC
RAM ARRAY
16,384 x 9
32,768 x 9
FLAG
LOGIC
WRITE POINTER
READ POINTER
READ
CONTROL
LOGIC
OUTPUT REGISTER
MRS
PRS
RT
RESET
LOGIC
RCLK
REN
OE
Q
0
-Q
8
4673 drw 01
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The SuperSync is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
錚?/div>
2002 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
APRIL 2002
DSC-4673/2

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