Overview |  Mobile FCRAM |  Consumer FCRAM |  Extended Temp. FCRAM |

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Low Power Consumption Memory for Digital Consumer Electronics (x64, Low Power DDR SDRAM, SiP-optimized) 256M-bit & 512M-bit Consumer FCRAM

Fujitsu 256Mbit and 512Mbit Consumer FCRAM features very low power and high throughput for digital consumer electronics products. They are ideal for system-in-package (SiP) designs that feature small mounting spaces on circuit boards and reduced component costs. They also support an operating temperature of up to 125°C. They offer the best value memory systems for digital consumer electronics.

Features

Operating Temperature of up to 125°C

• Conventional SDRAM such as DDR2 SDRAM or Low Power DDR SDRAM can only support a maximum operating temperature of 95°C, which causes a thermal design problem in high power consuming SoCs. The Fujitsu high temperature FCRAM with maximum 125°C operation solves the thermal design problem and SiP and can be used for variety of applications.
  
  PDF Case Study of SiP Thermal Design (54KB)

Low Power Consumption

• DDR2 SDRAM and other high-speed memory interfaces require a termination resistor to maintain stable signals. These resistors are responsible for much of the total power consumption in such applications. The new FCRAM eliminates the need for resistors by using a wide 64-bit I/O bus, so that it can run at a lower operating frequency. The result is performance equivalent to two 16-bit DDR2 SDRAMs with 16-bit I/O interfaces, with about one full Watt less total power consumption. This equates to a 70 percent reduction compared with prior requirements. A significant proportion of the DDR2 SDRAM’s total power consumption has been accounted for by the terminating resistors; eliminating them makes a significant contribution to power savings.
  
  PDF Power Consumption Comparison between DDR2/LPDDR and FCRAM (50KB)

High Data Bandwidth

• x64-bit I/O FCRAM realizes high data transfer rate equivalent to twice that of standard DDR memories.
• Operating frequencies up to 216MHz under 105°C , and 200MHz under 125°C .
  
  PDF Feature Comparison between Standard DRAM and FCRAM(41KB)

Technical Support

Fujitsu offers technical support tools to help customers’ product development. They include simulation models for memory verification, a memory controller for interface support, and a FPGA optional evaluation board.

• Memory Controller
• FPGA Evaluation Board (Optional Board)
• Simulation Model
  - IBIS Model
  - Verilog Model
  - SOMA Model (Supported by Denali Software, Inc.)
  - BFM (Bus Function Model)
  - ESL (Electric System Level)

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