This multi-generational family of PSRAM devices combines the high throughput and power-saving benefits of DRAM technology with an SRAM-like interface at a much lower cost-per-bit. PSRAM’s single-bus architecture, hidden-refresh operation, and SRAM pin-compatibility make it a compelling alternative for low-power, cost-sensitive applications that currently use SRAM.
Micron PSRAM Advantages
If you design applications that require cache or buffered memory, you can leverage PSRAM's success in the handset market for your designs. With an industry-standard asynchronous interface and burst NOR Flash bus compatibility, PSRAM can easily be used in existing designs to replace SRAM or add functionality.
With a smaller architecture, Micron PSRAM is an attractive, lower-cost alternative to 6T SRAM. Backward-compatible with low-power SRAM, Micron’s PSRAM devices simplify the design process, enabling you to economically get your products to market on time. PSRAM is offered in a wide density range (4-128Mb) and also includes an extended temperature range of –40°C to 105°C to enable operation in extreme environments.
Download the PSRAM product flyer to get more details about this compelling alternative to SRAM.
CellularRAM Memory
CellularRAM memory is the trademark name for Micron's PSRAM device with an asynchronous/page and burst Flash interface. For mobile applications that require ultra-low power consumption and increased bandwidth, CellularRAM is a perfect alternative to traditional SRAM.
PSRAM Part Catalog and Documentation
Why Micron PSRAM?
Cost Savings – Enables you to reallocate resources to increase production, improve design, and answer market demands.
Higher Density – Provides a simple solution for expanding product functionality without adding design complexity.
Lower Power – Creates broader product appeal with lower heat dissipation and extended battery life.
Design Compatibility – Gets you to market quicker thanks to reduced debug time and design reuse.
Reliable Supply – Simplifies product life cycle management with long-term, volume support.
Long-Term Supply Commitment
Micron is the proven global supplier of PSRAM with the economies of scale to be cost-competitive in markets where low-density solutions are a key requirement. Micron provides you the added assurance of quality and reliability along with a strong customer support system.
PSRAM Temperature Options
| Market Segment |
Range |
| Wireless |
–30° to +85° |
| Industrial |
–40° to +85° |
| Automotive* |
–40° to 105° |
*Contact factory for availability.
PSRAM Package Options
| Package Type |
Operating Modes |
| 48-ball VFBGA |
Async/Page |
| 54-ball VFBGA |
Async/Page/Burst |
| 56-pin TSOP* |
Async/Page |
| Known good die (KGD) |
Async/Page or Async/Page/Burst |
Consumer Applications for PSRAM
PSRAM's ultra-low active and standby power consumption and small footprint make it an ideal solution for battery-operated and space-limited applications.
- Cell Phone
- PDA
- MP3/4 Player
- Video Cell Phone
- GPS
- Gaming
- Video Hand-Helds
Medical Applications for PSRAM
PSRAM's ultra-low active and standby power consumption, coupled with its high data throughput, allows designers to optimize power consumption in battery-operated and battery-backed-up systems without compromising performance.
- Blood Glucose Monitor
- ECG Monitor
- Defibrillator
- Personal Monitors
Industrial Applications for PSRAM
Compatible with a NOR bus interface for easy system design, PSRAM can provide a lower-cost alternative to SRAM and traditional DRAM. An extended temperature range of –40°C to 105°C enables operation in extreme environments.
- Barcode (point of sale)
- Security
- Automated control
- Industrial PC
Automotive Applications for PSRAM
Offered in a wide density range (4–128Mb) for design flexibility, PSRAM makes a perfect companion to wireless burst NOR Flash, providing a single-bus solution for easy system design. PSRAM also includes an extended temperature range of –40°C to 105°C to enable operation in extreme environments.
- Entertainment
- Industrial PC
- Navigation systems