IDT72V801L20PFGI(2014) 데이터 시트보기 (PDF) - Integrated Device Technology
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IDT72V801L20PFGI Datasheet PDF : 16 Pages
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DEPTH EXPANSION — These FIFOs can be adapted to applications that
require greater than 256/512/1,024/2,048/4,096/8,192 words. The exist-
ence of double enable pins on the read and write ports allow depth expansion.
The Write Enable 2/Load (WENA2, WENB2) pins are used as a second write
enables in a depth expansion configuration, thus the Programmable flags are
set to the default values. Depth expansion is possible by using one enable
input for system control while the other enable input is controlled by expansion
logic to direct the flow of data. A typical application would have the expansion
logic alternate data access from one device to the next in a sequential manner.
The IDT72V801/72V811/72V821/72V831/72V841/72V851 operates in the
Depth Expansion configuration when the following conditions are met:
1. WENA2/LDAand WENB2/LDBpins are held HIGH during Reset so that
these pins operate as second Write Enables.
2. External logic is used to control the flow of data.
Please see the Application Note "DEPTH EXPANSION OF IDT'S SYN-
CHRONOUS FIFOs USING THE RING COUNTER APPROACH" for
details of this configuration.
ORDERING INFORMATION
XXXXX
X
XX
X
X
Device Type Power Speed Package
X
X
Process /
Temperature
Range
BLANK Tube or Tray
8
Tape and Reel
BLANK
I(1)
G(2)
PF
TF(3)
Commercial (0°C to +70°C)
Industrial (-40°C to +85°C)
Green
Thin Quad Flatpack (TQFP, PN64)
Slim Thin Plastic Quad Flatpack (STQFP, PP64)
10
Commercial Only
Clock Cycle Time
15
Commercial And Industrial (tCLK), speed in
20
Commercial Only
Nanoseconds
L
Low Power
72V801
72V811
72V821
72V831
72V841
72V851
NOTES:
1. Industrial temperature range product for the 15ns speed grade is available as a standard device.
2. Green parts available. For specific speeds and packages contact your local sales office.
3. TF package is End of Life. Last time buy is July 28, 2015.
256 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
512 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
1,024 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
2,048 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
4,096 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
8,192 x 9 ⎯ 3.3 Volt DUAL SyncFIFO
4093 drw 20
DATASHEET DOCUMENT HISTORY
04/24/2001
pgs. 4, 5 and 16
02/02/2006
pgs. 1 and 16.
10/22/2008
pg. 16.
11/06/2014
pg. 1, 2 and 16.
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Road
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for SALES:
800-345-7015 or 408-284-8200
fax: 408-284-2775
www.idt.com
16
for Tech Support:
408-360-1753
email: FIFOhelp@idt.com
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