512K x 9 SuperSync FIFO, 3.3V

The IDT72V2111 is a exceptionally deep, high speed, CMOSFirst-In-First-Out (FIFO) memories with clocked read and write controls. TheseFIFOs offer numerous improvements over previous SuperSync FIFOs,including the following:• The limitation of the frequency of one clock input with respect to the other hasbeen removed. The Frequency Select pin (FS) has been removed, thusit is no longer necessary to select which of the two clock inputs, RCLK orWCLK, is running at the higher frequency.• The period required by the retransmit operation is now fixed and short.• The first word data latency period, from the time the first word is written to anempty FIFO to the time it can be read, is now fixed and short. (The variableclock cycle counting delay associated with the latency period found onprevious SuperSync devices has been eliminated on this SuperSync family.) SuperSync FIFOs are particularly appropriate for network, video, telecommunications,data communications and other applications that need to buffer largeamounts of data.

• IDT72V2111 ? 524,288 x 9
• Pin-compatible with the IDT72V261/72V271 and the IDT72V281/ 72V291 SuperSync FIFOs
• 10ns read/write cycle time (6.5ns access time)
• Fixed, low first word data latency time
• 5V input tolerant
• Auto power down minimizes standby power consumption
• Master Reset clears entire FIFO
• Partial Reset clears data, but retains programmable settings
• Retransmit operation with fixed, low first word data latency time
• Empty, Full and Half-Full flags signal FIFO status
• Programmable Almost-Empty and Almost-Full flags, each flag can default to one of two preselected offsets
• Program partial flags by either serial or parallel means
• Output enable puts data outputs into high impedance state
• Easily expandable in depth and width
• Independent Read and Write clocks (permit reading and writing simultaneously)
• Available in the 64-pin Thin Quad Flat Pack (TQFP)
• High-performance submicron CMOS technology
• Industrial temperature range (–40°C to +85°C) is available
• Green parts available