QDR Consortium unveils highest speed SRAMs
April 21, 2011 // Phil Ling
The QDR Consortium, which was jointly formed by Cypress Semiconductor and Renesas Electronics to develop a quad data rate SRAM standard, have announced that devices marketed under the name QDRII+ Xtreme will deliver clocks speeds up to 633MHz. This represents the fastest quad data rate SRAM to date.
The devices will be drop-in replacements for existing QDRII+ devices and will require no changes to the board or PCB track layout, says the Consortium, allowing manufacturers to benefit from higher performance just by increasing the clock speeds.
They will also be offered with either x18 or x36 word widths and with bursts of 4 or 2 access. The burst 4 devices deliver a random transaction rate (RTR) of 633 million random transactions per second, operating at a clock speeds of 633MHz. The burst 2 offerings operate at a frequency of 450MHz and offer an RTR of 900 million random transactions per second, which doubles the RTR of the prior generation burst of 4 devices running at the same frequency. The random transaction rate is defined as the number of fully random memory accesses per second and is the critical memory metric enabling increased line/switching rates.
First engineering samples of the 36Mbit and 72Mbit QDRII+ Xtreme devices from Cypress are expected for lead customers in mid-2011.
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Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
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