Product category: Memory Devices and Modules
News Release from: Cypress Semiconductor | Subject: 72Mbit NoBL SRAMs
Edited by the Electronicstalk Editorial Team on 13 December 2002
Top density for speedy burst SRAMs
Cypress is sampling its 72Mbit NoBL (No Bus Latency) burst family of SRAMs optimised for networking applications operating at OC-48 speeds (2.5Gbit/s) and above.
Cypress is sampling its 72Mbit NoBL (No Bus Latency) burst family of SRAMs optimised for networking applications operating at OC-48 speeds (2.5Gbit/s) and above The new devices have been codeveloped with Ramtron subsidiary Enhanced Memory Systems using a patented one-transistor (1T) enhanced SRAM (ESRAM) technology to achieve the same speed, four to eight times higher density and four times lower power than traditional six-transistor sync SRAMs
This article was originally published on Electronicstalk on 9 Jul 2008 at 8.00am (UK)
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NoBL SRAMs have an architecture optimised for the most demanding high-speed applications requiring maximum bus bandwidth.
They eliminate the latency (dead cycles, or wait states) found in conventional synchronous burst SRAM architectures when transitioning between write and read operations.
The NoBL architecture allows data transfer on every clock cycle, regardless of whether a write or read operation is taking place, thereby providing 100% bus usage.
"The sampling of the 72Mbit NoBL sync SRAM product further demonstrates our leadership in high performance memory", said Christos Mimikopoulos, senior marketing manager for Cypress's Memory Products Division.
"The new 72Mbit NoBL burst offers high throughput for networking operations, making it an ideal packet buffer.
The 1T architecture enables us to offer a larger and faster memory at a lower price per bit than standard sync SRAMs".
The 72Mbit NoBL burst SRAM products are organised in 2M x 36bit, operate at up to 166MHz clock speed and deliver 100% bus usage during four-word read/write/read transactions.
The products are available with 2.5 or 3.3V power supply options in a 100-pin TQFP package.
In addition, these products are pin, function and timing compatible with the Cypress family of NoBL SRAMs in the burst operation, making them ideal upgrades in network systems that require larger SRAM buffer memories.
Samples of the 72Mbit NoBL SRAM are available now, with production quantities in late Q4 2002.
Cypress Semiconductor and Enhanced Memory Systems will offer the 72Mbit NoBL SRAM as a second source to one another.
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