AL4CX263/AL4CX273/
AL4CX283/ AL4CX293
16K/32K/64K/128K x9, 8K/16K/32K/64K x18
Synchronous FIFO
Applications
-
-
-
-
-
-
-
-
-
ATM switches
Routers
Cable modems
Wireless base stations
SONET(Synchronous Optical Network)
multiplexers
Multimedia systems
TBC(Time Base Corrector)
Hard Disk cache memory
Buffer for Communications
Features
•
•
•
•
•
•
•
•
•
•
Description
The
AL4CX263/AL4CX273/AL4CX283/
AL4CX293 FIFO (First In First Out) memory
provides completely independent 18bit bus
width input and output port operation with
flexible x18/ x9 Bus-Matching data flow
control at a maximum speed of 166 Mhz. The
products are available in densities from
128Kbit to 1Mbit. Additional features of the
AL4CX2x3 series include: fixed and
programmable flags; low first word latency;
partial reset; Endian select; expandable
depth/width.
The embedded memory array with built-in
address decoder, pointer manager and state-
of-the-art circuits provide an easy-to-use
interface to serial read/write memory and offer
a flexible way to manage memory in the
system design.
•
•
•
•
•
•
8,192 x 18/16, 384 x 9-bit (AL4CX263)
16,384 x 18/32, 768 x 9-bit (AL4CX273)
32,768 x 18/65, 536 x 9-bit (AL4CX283)
65,536 x 18/131, 072 x 9-bit (AL4CX293)
Maximum 166 MHz Operation
6 ns read/write cycle time
Independent Read and Write operations
Standard or First Word Fall Through mode
Bus-Matching and Endian selection
Empty, Full, Half-Full and Programmable
Almost-Empty, Almost-Full Flags
Depth and width expandable
Output enable (data skipping)
Master Reset clears entire FIFO
Partial Reset, clears data
Zero Latency Retransmit
3.3V power supply with 5V tolerant inputs
Available in a 80-pin thin quad flat pack
(TQFP)
Ordering Information
Part number
Package
Power Supply
AL4CX263, AL4CX273,
AL4CX283, AL4CX293
80-pin plastic TQFP
+3.3V
±
10%
AVERLOGIC [ AVERLOGIC TECHNOLOGIES INC ]
