IDT Introduces Industry's First 3.3-Volt, 100-MHz Synchronous FIFOs; Market Leader Continues to Advance FIFO Technology

Business Wire, August 24, 1998

SANTA CLARA, Calif.--(BUSINESS WIRE)--Aug. 24, 1998--IDT (NASDAQ:IDTI), the industry's leading supplier of first-in/first-out (FIFO) memories, today introduced the first 100-MHz FIFOs to operate at 3.3 volts. The new broad line of 3.3-volt, 100-MHz SyncFIFO(TM), DualSync(TM) and SuperSync(TM) FIFOs, which are available in densities up to 1 Mbit, provide faster system performance and greater throughput, making them ideal solutions for data-intensive datacom and telecom applications such as routers, switches, cellular base stations and SONET/ATM multiplexers. In addition, the new 3.3-volt devices are tolerant of 5-volt inputs.

"The introduction of our new 3.3-volt, 100-MHz FIFOs clearly demonstrates that IDT is continuing to lead the effort to advance FIFO technology," said Mario Montana, IDT's strategic marketing manager of FIFO products. "We offer the broadest range of FIFO products in the industry and will continue to work closely with our customers to deliver FIFOs that meet the density and performance requirements of future high-performance communications applications."

For data communications applications, such as ATM switches or gigabit ethernet routers, the new 100-MHz FIFOs can increase overall system performance by decoupling high-speed buses from slower buses, as well as perform data buffering tasks to reduce cell loss and maintain sufficient data throughput. Additionally, the FIFOs can hold packets as they wait for access to the switch fabric or an output line card, thereby reducing packet loss and improving quality of service to the end user. Independent read and write clocks allow simultaneous reading and writing within one clock cycle.

The new 3.3-volt FIFOs, which provide a 60 percent savings in power consumption compared to functionally compatible 5-volt devices, are ideal for designers who want to replace their 5-volt power supply, but need the high performance of a true 100-MHz system design. The FIFOs' ability to tolerate 5-volt inputs simplifies the process for designers by removing the need for 3.3-volt/5-volt translational logic and providing flexibility for mixed-voltage legacy system designs. Additionally, the ability to operate at the lower voltage provides a reduction in noise, which is critical to telecommunications applications such as broadband CDMA cellular base stations and PBX solutions.

All of the new 3.3-volt, 100-MHz FIFOs provide fast access times of only 6.5 ns, low first-word latency and lower ICC current than previously available FIFOs. In addition, the SuperSync FIFOs deliver advanced features such as first-word fall-through mode, partial reset, serial loading of flag offsets and register buffered flag outputs.

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Part Number   Description               Vcc        Maximum    Speed
                                                   Frequency  Grade
                                                               (ns)
x18 FIFOs

IDT72V285L    64K x 18  SuperSyncFIFO   3.3 volt   100 MHz      -10
IDT72V275L    32K x 18  SuperSyncFIFO   3.3 volt   100 MHz      -10
IDT72V265LA   16K x 18  SuperSyncFIFO   3.3 volt   100 MHz      -10
IDT72V255LA    8K x 18  SuperSyncFIFO   3.3 volt   100 MHz      -10
IDT72V245L     4K x 18  SyncFIFO        3.3 volt   100 MHz      -10
IDT72V235L     2K x 18  SyncFIFO        3.3 volt   100 MHz      -10
IDT72V225L     1K x 18  SyncFIFO        3.3 volt   100 MHz      -10
IDT72V215L    512 x 18  SyncFIFO        3.3 volt   100 MHz      -10
IDT72V205L    256 x 18  SyncFIFO        3.3 volt   100 MHz      -10
IDT72V845L    Dual 4K x 18  SyncFIFO    3.3 volt   100 MHz      -10
IDT72V835L    Dual 2K x 18  SyncFIFO    3.3 volt   100 MHz      -10
IDT72V825L    Dual 1K x 18  SyncFIFO    3.3 volt   100 MHz      -10
IDT72V815L    Dual 512 x 18 SyncFIFO    3.3 volt   100 MHz      -10
IDT72V805L    Dual 256 x 18 SyncFIFO    3.3 volt   100 MHz      -10

x9 FIFOs

IDT72V291L    128K x 9 SuperSyncFIFO    3.3 volt   100 MHz      -10
IDT72V281L     64K x 9 SuperSyncFIFO    3.3 volt   100 MHz      -10
IDT72V271L     32K x 9 SuperSyncFIFO    3.3 volt   100 MHz      -10
IDT72V261LA    16K x 9 SuperSyncFIFO    3.3 volt   100 MHz      -10
IDT72V251LA     8K x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V241L      4K x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V231L      2K x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V221L      1K x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V211L     512 x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V201L     256 x 9 SyncFIFO         3.3 volt   100 MHz      -10
IDT72V841L Dual 4K x 18 SyncFIFO        3.3 volt   100 MHz      -10
IDT72V831L Dual 2K x 18 SyncFIFO        3.3 volt   100 MHz      -10
IDT72V821L Dual 1K x 18 SyncFIFO        3.3 volt   100 MHz      -10
IDT72V811L Dual 512 x 18 SyncFIFO       3.3 volt   100 MHz      -10
IDT72V801L Dual 256 x 18 SyncFIFO       3.3 volt   100 MHz      -10

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Pricing and Availability

Pricing for the new FIFOs starts at $9.70 in 10,000-piece quantities. The devices are currently sampling, with production in Q4CY98. Commercial and industrial temperature versions of the devices will be available.