Memory
Memory is changing. New
product introductions, and a
new online memory superstore,
are bringing more flexibility to the
design and sourcing of memory
components.
Each application, from portable devices to high-data-rate storage,
places different demands on volatility, capacity, performance, dimensions,
weight, and power consumption.
In answer to this, leading manufacturers such as Cypress
Semiconductor, Microchip, Freescale Semiconductor, SST, Ramtron,
Macronix and Rohm are offering an array of technological developments
for both non-volatile and static memory.
Non-volatile memory
At the high-density end of the spectrum, Flash memory usage is
continuing to increase year on year, with multi-I/O serial Flash delivering
superior performance (see page 18). In the low-density market, however,
new technologies are emerging to compete with the dominant
EEPROM/battery-backed RAM suppliers. Advances such as F-RAM (page
17), and MRAM (page 15) remove the need for a battery, reducing overall
energy consumption.
Future Electronics' technical director (EMEA) reviews the new nonvolatile
technologies and provides an objective comparison on page 20.
New online memory superstore
In a few short years SRAM has gone from writing or reading one byte
of data at a time, to transferring four words simultaneously and
offering synchronous bursting of data. However, with many suppliers
narrowing their SRAM product range, sourcing from a comprehensive
and reliable family of products has never been more important.
Future Electronics’ new online Memory Superstore at memorysuperstore.net
provides an early warning for SRAM parts with end of
life issues and offers a cross-referenced search for a secure alternative.
The latest SRAM parts are introduced on pages 14, 15, 17 and 19.
Synchronous SRAMs extend performance and value for all applications
As an industry leader in high-density
synchronous SRAMs, Cypress
Semiconductor has a broad portfolio
covering standard pipelined and
flow-through products, No-Bus-Latency™ (NoBL) SRAMs, and today’s
fastest, highest-density Quad Data
Rate (QDR), Double Data Rate (DDR)
and DDRII+ devices.
This comprehensive selection of technologies
allows designers to achieve an optimal memory
architecture meeting important constraints
including bus latency, supply voltage, operating
frequency, component count and cost.
For leading-edge networking applications,
Cypress has QDR and DDR/DDRII+ memories in
speeds up to 550MHz and densities from 9Mbyte
to 72Mbyte. This will be supported on 65nm
technology, available at the end of the year. As
a member of the QDR Consortium, Cypress is a
technology and market innovator combining
extensive investment in 90nm and 65nm process
technologies with best-in-class manufacturing
and customer support to deliver outstanding
performance, competitive pricing and value.
Cypress’s portfolio of standard SRAM and NoBL
devices covers densities from 1Mbyte to
72Mbyte, operating frequencies up to 250MHz,
and 3.3V or 2.5V supply-voltage standards.
FEATURES
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- Industrial and commercial temperature ranges
- TQFP and BGA packages
- Roadmap to 65nm process geometry and 144Mbyte density
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APPLICATIONS
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- Switches and routers
- Base stations
- Test equipment
- Telecommunications
- Medical devices
- Data communications
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- Clare’s CPC1317 solid-state relay, page 080710
- connectBlue’s OZSPA311, page 080715
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