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IDT72V211L20PF Datasheet(PDF) 1 Page - Integrated Device Technology

Part # IDT72V211L20PF
Description  3.3 VOLT CMOS SyncFIFO??256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT72V211L20PF Datasheet(HTML) 1 Page - Integrated Device Technology

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3.3 VOLT CMOS SyncFIFO™
256 x 9, 512 x 9,
1,024 x 9, 2,048 x 9,
4,096 x 9 and 8,192 x 9
IDT72V201, IDT72V211
IDT72V221, IDT72V231
IDT72V241, IDT72V251
©2002 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-4092/2
FEBRUARY 2002
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. SyncFIFO is a trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
clocked read and write controls. The architecture, functional operation and pin
assignments are identical to those of the IDT72201/72211/72221/72231/
72241/72251, but operate at a power supply voltage (Vcc) between 3.0V and
3.6V. These devices have a 256, 512, 1,024, 2,048, 4,096 and 8,192 x 9-bit
memory array, respectively. These FIFOs are applicable for a wide variety of
databufferingneedssuchasgraphics,localareanetworksandinterprocessor
communication.
These FIFOs have 9-bit input and output ports. The input port is
controlled by a free-running clock (WCLK), and two Write Enable pins
(
WEN1, WEN2). Data is written into the Synchronous FIFO on every rising
clock edge when the Write Enable pins are asserted. The output port is
controlled by another clock pin (RCLK) and two Read Enable pins (
REN1,
REN2). The Read Clock can be tied to the Write Clock for single clock
operation or the two clocks can run asynchronous of one another for dual-
clock operation. An Output Enable pin (
OE) is provided on the read port
for three-state control of the output.
The Synchronous FIFOs have two fixed flags, Empty (
EF) and Full (FF).
Two programmable flags, Almost-Empty (
PAE) and Almost-Full (PAF), are
provided for improved system control. The programmable flags default to
Empty+7 and Full-7 for
PAE and PAF, respectively. The programmable flag
offsetloadingiscontrolledbyasimplestatemachineandisinitiatedbyasserting
the Load pin (
LD).
These FIFOs are fabricated using IDT's high-speed submicron CMOS
technology.
FEATURES:
••••• 256 x 9-bit organization IDT72V201
••••• 512 x 9-bit organization IDT72V211
••••• 1,024 x 9-bit organization IDT72V221
••••• 2,048 x 9-bit organization IDT72V231
••••• 4,096 x 9-bit organization IDT72V241
••••• 8,192 x 9-bit organization IDT72V251
••••• 10 ns read/write cycle time
••••• 5V input tolerant
••••• Read and Write clocks can be independent
••••• Dual-Ported zero fall-through time architecture
••••• Empty and Full Flags signal FIFO status
••••• Programmable Almost-Empty and Almost-Full flags can be set to
any depth
••••• Programmable Almost-Empty and Almost-Full flags default to
Empty+7, and Full-7, respectively
••••• Output Enable puts output data bus in high-impedance state
••••• Advanced submicron CMOS technology
••••• Available in 32-pin plastic leaded chip carrier (PLCC) and 32-pin
plastic Thin Quad FlatPack (TQFP)
••••• Industrial temperature range (–40
°°°°°C to +85°°°°°C) is available
DESCRIPTION:
TheIDT72V201/72V211/72V221/72V231/72V241/72V251SyncFIFOs™
are very high-speed, low-power First-In, First-Out (FIFO) memories with
FUNCTIONAL BLOCK DIAGRAM
WCLK
WEN1
WEN2
D0 - D8
LD
OFFSET REGISTER
INPUT REGISTER
RAM ARRAY
256 x 9, 512 x 9,
1,024 x 9, 2,048 x 9,
4,096 x 9, 8,192 x 9
WRITE CONTROL
LOGIC
WRITE POINTER
RESET LOGIC
OUTPUT REGISTER
OE
RS
Q0 - Q8
RCLK
REN1
REN2
READ CONTROL
LOGIC
READ POINTER
FLAG
LOGIC
EF
PAE
PAF
FF
4092 drw 01


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