PSRAM (Pseudo SRAM): Mobile FCRAM
Mobile FCRAM is the PSRAM (Pseudo SRAM) developed for cellular phone. Fujitsu, one of PSRAM top suppliers, has been shipping more than 500 million units since year 2000. Mobile FCRAM interface is based on the asynchronous SRAM and supports page mode and synchronous burst mode for high-speed read and write operation with low power consumption. The Mobile FCRAMs are ideal for general mobile applications such as smart phone, PDA, portable media player(PMP), and portable games.
Mobile FCRAM(PSRAM) Features
- Low Power SRAM Compatible interface
- Asynchronous Operation
- Refresh Free
- Large Density
- Unavailable density as SRAM
- 32Mbit and 128Mbit in production now
- Low Power Design
- Same or less active power than SRAM
- Very low data retention current than regular DRAM
- Wide Operating Voltage
- 1.8V and 3V
- Power Down Mode
- Specialized to "Work Memory" applications
Mobile FCRAM(PSRAM) Product Lineup
| Density | Configuration | Voltage | Access Time | Page Mode Access Time | Burst Mode Frequency | Burst Mode Access Time | Part Number |
|---|---|---|---|---|---|---|---|
| 32Mbit | 2M x16 | 3V | 65ns | 20ns | N/A | N/A | PDF MB82DP02183F |
| 32Mbit | 2M x16 | 1.8V | 70ns | 20ns | 83MHz | N/A | PDF MB82DBS02163F |
| 128Mbit | 8Mx16 | 1.8V | 70ns | N/A | 77MHz | 6ns | PDF MB82DBS08164D |
Target Applications for Mobile FCRAM
- Cellular Phone
- Smart Phone
- PDA
- Portable Media Player (PMP)
- Portable Game
- Electric Dictionary
Technical Note
- PDF Feature Comparison between Mobile FCRAM and SRAM (51KB)
- PDF Cellular phone block diagram (28KB)
- PDF How to replace SRAM with PSRAM (FCRAM) (142KB)
Technical Information
| FCRAM Inquiry Form |
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Please go to the inquiry form if you have questions or requests on FCRAM of;  Datasheet Presentation material Pricing Samples Simulation model Interface verification |
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