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AL4V185

AverLogic Technologies
Part Number AL4V185
Manufacturer AverLogic Technologies
Description (AL4V183 / AL4V185) Line FIFO
Published Oct 2, 2009
Detailed Description AL4V183/185 16K, 64K-Bit Line FIFO Applications Multimedia System Video line capture TBC(Time Base Corrector) Hard Disk ...
Datasheet PDF File AL4V185 PDF File

AL4V185
AL4V185

Overview
AL4V183/185 16K, 64K-Bit Line FIFO Applications Multimedia System Video line capture TBC(Time Base Corrector) Hard Disk cache memory Anti-skip audio data buffer Features • • • • • • • • • High performance, low-power, FIFO(First-In First-Out) memory 1K x18 bit 1/O port (AL4V183) 4K x18 bit I/O port (AL4V185) High clock speed (100 MHz) Fully independent read/write access Output enable control (data skipping) User selectable input and output bus width Big/Little-Endian word format selectable 3.
3V±10% power supply with 5V signal input tolerance Standard 64-pin STQFP Description The AL4V183/185 series memory products are high-performance, low-power 18-bit read/write FIFO (First-In-First-Out) memory chip designed to buffer high speed streaming data for a wide range of applications, such as optical disk data caching, video line data buffering.
This product series supports bus conversion functions, such as Bus-Matching, Endian selection that can reduce designing efforts.
• Ordering Information Part number Package Power Supply AL4V183, AL4V185 64-pin plastic STQFP +3.
3V±10% 48 49 33 32 AVERLOGIC AL4V18X X-XX-XX XXXXX XXXX 64 17 1 16 STQFP PACKAGE TOP VIEW www.
DataSheet4U.
com /OE Input data bus Input Buffer (1k , 4k) x18 Memory Array Output Buffer Output data bus WCLK /WEN /WRSTB Write Control Logic Write Pointer Read Control Logic Read Pointer RCLK /REN /RRSTB /BEB /IW /OW Offset Regissers Timing & Control Logic Figure 1.
AL4V18x FIFO Block Diagram The 18bit input and output ports operate independently at a maximum speed of 100 MHz.
The built-in address decoder and pointer managing circuits provide a straightforward bus interface to serially read/write memory that reduces inter-chip design efforts.
The AL4V18x embedded memory array and high performance process technologies with extended controller functions (read skip, fixed and programmable status flags.
.
.
etc.
) offer flexible memory management.
These FIFOs support up to 18-bit input and output da...


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