參數(shù)資料
型號: AL4CS231
英文描述: (512 x9. 1k x9. 2k x9. 4k x9. 8k x9) Synchronous FIFO
中文描述: (512 X9熱賣。經(jīng)銷商X9熱賣。2k X9熱賣。4K的X9熱賣。8K的X9熱賣)同步FIFO
文件頁數(shù): 4/25頁
文件大小: 2044K
代理商: AL4CS231
AL4CS211/AL4CS221/AL4CS231/AL4CS241/AL4CS251
AL4CS211/AL4CS221/AL4CS231/AL4CS241/AL4CS251
December 14, 2001
4
1.0 Description
The AL4CS211/AL4CS221/AL4CS231/AL4CS241/AL4CS251 series memory products are high-
performance, low-power 9-bit read/write FIFO (First-In-First-Out) memory chips. They are
specially designed to buffer high speed streaming data for a wide range of communication
applications, such as optical disk controllers, Local Area Networks (LANs), SONET (Synchronous
Optical Network).
The input data is synchronous with a free-running clock (WCLK), and input-enable pins (/WEN1,
/WEN2). Data is written into the FIFO on every clock when enable pins are asserted. The output is
synchronous with the other free-running clock (RCLK) and enables (/REN1, /REN2). An Output
Enable pin (/OE) is provided at the read port for tri-state control of the output port. The FIFOs can
output two fixed flags, Empty Flag( /EF) and Full Flag (/FF), and two programmable flags, Almost-
Empty (/PAE) and Almost-Full (/PAF). The offsets of the /PAE and /PAF flags are loaded when
Load pin (/LD) goes low.
2.0 Features
512 x9-bit cell array (AL4CS211)
1,024 x9-bit cell array (AL4CS221)
2,048 x9-bit cell array (AL4CS231)
4,096 x9-bit cell array (AL4CS241)
8,192 x9-bit cell array (AL4CS251)
100/133 MHz Operation
10/7.5 ns read/write cycle time
Independent Read and Write operations
Empty and Full flags support
3.0 Applications
Routers
ATM switches
Cable modems
Wireless base stations
SONET(Synchronous Optical Network) multiplexers
Multimedia systems
Time base correction (TBC)
Programmable Almost-Empty and
Almost-Full flags
Output enable (data skipping)
3.3V power supply with 5V tolerant
Available in a 32-pin Thin Quad Flat
Pack (TQFP) and 32-pin plastic
leaded chip carrier (PLCC) packages
相關(guān)PDF資料
PDF描述
AL4CS241 (512 x9. 1k x9. 2k x9. 4k x9. 8k x9) Synchronous FIFO
AL4CS251 (512 x9. 1k x9. 2k x9. 4k x9. 8k x9) Synchronous FIFO
ALA110-SERIES ASIC
ALA201 ASIC
ALA202 ASIC
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