PSRAM – Pseudostatic RAM

HYPERRAM™ - Low pin-count, high bandwidth pSRAM memory in a small footprint

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Overview

Infineon offers a comprehensive portfolio of HYPERRAM™/Octal xSPI RAM memories with densities ranging from 64 Mb to 512 Mb. With its unique blend of high bandwidth and low pin-count, HYPERRAM™ is ideal for a wide range of industrial and automotive applications that require additional RAM for data-intensive operations. These energy efficient pSRAMs are also the ideal expansion memory choice for battery-operated consumer and wearable devices.

Key Features

  • Small-form-factor of 6 x 8 mm
  • Lower pin-count with xSPI/HYPERBUS™
  • Energy-efficient with hybrid sleep
  • High throughput up to 800 Mbps
  • HYPERFLASH™ plus HYPERRAM™ as MCP
  • Scalable densities up to 512 Mb
  • AEC-Q100 devices with up to 125°C
  • Wide eco-system support

Products

About

HYPERRAM™ - Pseudostatic RAM (pSRAM) technology

HYPERRAM™ is a high-speed CMOS, self-refresh DRAM, with a HYPERBUS™ interface. Its memory array is internally structured like DRAM, but externally acts like SRAM.

The DRAM array requires a periodic refresh to maintain data integrity. HYPERRAM™ internally manages the refresh operations on the DRAM array when the memory is not being actively read or written by a host. Since the host is not required to manage any refresh operations, the DRAM array appears to the host as static cells that retain data without refresh. Hence, HYPERRAM™ is described as pseudostatic RAM (pSRAM).

These low-power, high-performance, and low pin-count pSRAMs are suitable for applications requiring additional RAM for buffering data, audio, images, video, or as a scratchpad for math and data-intensive operations.

  • Density: 64 Mb, 128 Mb, 256 Mb, 512 Mb
  • Interface: HYPERBUS™ (x8), Octal xSPI (x8), and HYPERBUS™ Extended I/O (x16)
  • Key features:
    • Small-form-factor - FBGA package ensures a small PCB footprint
    • Low pin-count - simplifies design and reduces system cost
    • Low power - hybrid sleep mode and partial-array-refresh for energy efficiency
    • High throughput - high read/write bandwidth to maximize system performance
To get started with HYPERRAM™ - read here
Infineon's HYPERRAM™ family

HYPERRAM™ 2.0 is the second generation of low pin-count pSRAM from Infineon that supports throughputs of up to 400 MBps. HYPERRAM™ 2.0 products are available from 64 Mb up to 512 Mb. HYPERRAM™ 2.0 devices are available with Octal xSPI and HYPERBUS™ interface. 

Our third-generation pSRAM products - HYPERRAM™ 3.0, doubles the throughput to 800 MBps using a new, 16-bit, extended version of the HYPERBUS™ interface. 256 Mb HYPERRAM™ 3.0 products are now available in production.

These pSRAM products are industrial/automotive-qualified and support JEDEC-compliant Octal xSPI and HYPERBUS™ interface.

To know more about HYPERRAM™ portfolio
HYPERBUS™/xSPI x8 DDR interface with low signal count

HYPERBUS™ is a low signal count DDR interface that achieves high-speed read and write throughput. It utilizes a high-speed 8-bit DDR interface for both address and data along with a differential clock, a read/write latch signal, and a chip select.

HYPERBUS™ can also support external NOR flash and RAM on the same bus and works with any microcontroller with a HYPERBUS™-compatible peripheral interface. This requires only 13 pins for data transactions (12-pin HYPERBUS™ + 1 additional chip select for the second memory device).

HYPERRAM™ vs. competing expansion memory solutions

HYPERRAM™ products achieve a far higher throughput per pin compared to competing technologies such as traditional ADMUX pSRAMs and SDR DRAMs which are based on a parallel interface. The built-in self-refresh circuitry and low-power features such as partial-array-refresh and hybrid-sleep enable lower power consumption making HYPERRAM™ apt for power-constrained applications such as wearables and IoT devices.

HYPERRAM™ devices are used in demanding applications

HYPERRAM™’s high throughput, low pin-count, smaller footprint, and energy efficiency makes it an ideal expansion memory choice for a variety of automotive, industrial, consumer, and communication applications.

  • Automotive instrument clusters

HYPERRAM™ memories provide density-scalability to meet the requirements of different instrument cluster systems. These memory devices provide an ideal solution for real-time graphics and high-speed access. The low-pin count interface also reduces design complexity and PCB size to save on design costs.

  • Industrial machine vision cameras

FPGA used in Industrial applications have limited internal RAM resources and often require low pin-count external memory for image processing. HYPERRAM™ with its lower pin-count and higher density makes it an ideal expansion memory solution.

Read more about automotive applications here
Read more about Industrial applications here

HYPERRAM™ - Pseudostatic RAM (pSRAM) technology

HYPERRAM™ is a high-speed CMOS, self-refresh DRAM, with a HYPERBUS™ interface. Its memory array is internally structured like DRAM, but externally acts like SRAM.

The DRAM array requires a periodic refresh to maintain data integrity. HYPERRAM™ internally manages the refresh operations on the DRAM array when the memory is not being actively read or written by a host. Since the host is not required to manage any refresh operations, the DRAM array appears to the host as static cells that retain data without refresh. Hence, HYPERRAM™ is described as pseudostatic RAM (pSRAM).

These low-power, high-performance, and low pin-count pSRAMs are suitable for applications requiring additional RAM for buffering data, audio, images, video, or as a scratchpad for math and data-intensive operations.

  • Density: 64 Mb, 128 Mb, 256 Mb, 512 Mb
  • Interface: HYPERBUS™ (x8), Octal xSPI (x8), and HYPERBUS™ Extended I/O (x16)
  • Key features:
    • Small-form-factor - FBGA package ensures a small PCB footprint
    • Low pin-count - simplifies design and reduces system cost
    • Low power - hybrid sleep mode and partial-array-refresh for energy efficiency
    • High throughput - high read/write bandwidth to maximize system performance
To get started with HYPERRAM™ - read here

Infineon's HYPERRAM™ family

HYPERRAM™ 2.0 is the second generation of low pin-count pSRAM from Infineon that supports throughputs of up to 400 MBps. HYPERRAM™ 2.0 products are available from 64 Mb up to 512 Mb. HYPERRAM™ 2.0 devices are available with Octal xSPI and HYPERBUS™ interface. 

Our third-generation pSRAM products - HYPERRAM™ 3.0, doubles the throughput to 800 MBps using a new, 16-bit, extended version of the HYPERBUS™ interface. 256 Mb HYPERRAM™ 3.0 products are now available in production.

These pSRAM products are industrial/automotive-qualified and support JEDEC-compliant Octal xSPI and HYPERBUS™ interface.

To know more about HYPERRAM™ portfolio

HYPERBUS™/xSPI x8 DDR interface with low signal count

HYPERBUS™ is a low signal count DDR interface that achieves high-speed read and write throughput. It utilizes a high-speed 8-bit DDR interface for both address and data along with a differential clock, a read/write latch signal, and a chip select.

HYPERBUS™ can also support external NOR flash and RAM on the same bus and works with any microcontroller with a HYPERBUS™-compatible peripheral interface. This requires only 13 pins for data transactions (12-pin HYPERBUS™ + 1 additional chip select for the second memory device).

HYPERRAM™ vs. competing expansion memory solutions

HYPERRAM™ products achieve a far higher throughput per pin compared to competing technologies such as traditional ADMUX pSRAMs and SDR DRAMs which are based on a parallel interface. The built-in self-refresh circuitry and low-power features such as partial-array-refresh and hybrid-sleep enable lower power consumption making HYPERRAM™ apt for power-constrained applications such as wearables and IoT devices.

HYPERRAM™ devices are used in demanding applications

HYPERRAM™’s high throughput, low pin-count, smaller footprint, and energy efficiency makes it an ideal expansion memory choice for a variety of automotive, industrial, consumer, and communication applications.

  • Automotive instrument clusters

HYPERRAM™ memories provide density-scalability to meet the requirements of different instrument cluster systems. These memory devices provide an ideal solution for real-time graphics and high-speed access. The low-pin count interface also reduces design complexity and PCB size to save on design costs.

  • Industrial machine vision cameras

FPGA used in Industrial applications have limited internal RAM resources and often require low pin-count external memory for image processing. HYPERRAM™ with its lower pin-count and higher density makes it an ideal expansion memory solution.

Read more about automotive applications here
Read more about Industrial applications here

Documents

Documents

Design resources

Developer community

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