FCRAM™ | Overview | New Products |

Overview

Improvements in the performance and functions of electronic devices that support our ubiquitous network society are advancing rapidly. The markets for high-performance mobile phones and digital consumer electronics keep stable growth, and steady growth of a market for work RAM to support them is also expected.
To satisfy the needs of such RAM market, Fujitsu has developed FCRAM, a high-performance, low power consumption memory. FCRAM is a RAM core architecture and an acronym of Fast Cycle RAM. Fujitsu has developed FCRAM product families based on the FCRAM core architecture and offers Consumer FCRAM and Mobile FCRAM as ASMs (Application-Specific Memories).
Consumer FCRAM is a memory adopting SDRAM interface for applications of digital consumer electronics and embedded devices. Mobile FCRAM is a pseudo SRAM for mobile handsets. Fujitsu offers these products in wafer, bare chip, or package forms and provides our customers with system memory solutions to meet their needs along with our SoC/SiP solution.

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Applications of FCRAM

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♦ FCRAM is a trademark of Fujitsu Microelectronics Limited.

Mobile FCRAM

Mobile FCRAM is a pseudo SRAM originally developed for mobile phones. Currently, Mobile FCRAM featuring both low power consumption and high-speed data transfer performance has been adopted not only for mobile phones but also battery-operated mobile applications such as PDAs, PMPs (Portable Media Players), and portable games.

Features

Pseudo SRAM for Mobile Applications
- Low Power Consumption: Low operating current & Low data retention current
- High-Speed Data Transfer: Page mode, Burst mode(DDR, SDR)
- Various I/O Configuration: x16/x32, and multiplexed A/DQ or separate A/DQ
- Wide Lineup: 16M-bit to 256M-bit
- Supply Voltage: 1.8V or 3.0V
Interface Compatibility with NOR Flash Memory
- Optimal for MCP used for portable mobile applications
  -Single package solution consisting of FCRAM and Flash memory
Conforming to COSMORAM Standard

Suitable Applications for Mobile FCRAM

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Mobile Phone Block Diagram (Example)

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Consumer FCRAM

Consumer FCRAM is a SDRAM-compatible RAM product for digital consumer electronics and embedded applications. 16M-bit to 128M-bit products are available. Consumer FCRAM has the SiP-oriented design, and Fujitsu proposes a SiP solution, a system LSI device that contains Consumer FCRAM(s) and a logic IC in a single package to meet each customer's need.

Features

SDRAM-Compatible RAM for Digital Consumer Electronics
- Lineup:
  16M-bit to 128M-bit products(SDR I/F): In production
  256M-bit to 1G-bit products(DDR I/F): Planning
Low Power Consumption
- Supply Voltage: 1.8V
- Low Standby Current & Low Refresh Current
  -power-down mode and various refresh functions to reduce current
SiP-Oriented RAM
- Optimal Chip Design for SiP
  -Pad assignment appropriate for chip stacking, and the integration of special functions to reduce current
- Proposal of SiP Solution using FCRAM
  -SiP solution: System LSI device that contains Consumer FCRAM(s) and a logic IC in a single package