EKF - Short Profile
EKF - Short Profile


M.2 Module

PCI Express® Non Volatile SRAM Memory-Mapped I/O
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M.2 2280 Module

PCI Express® Non Volatile SRAM Memory-Mapped I/O

The M01-NVSRAM is a non volatile static RAM, organized as 1024k x 32bit, for PCI Express® direct access (memory-mapped read/write to a linear address space, aka MMIO). The M01-NVSRAM is housed on a 2280 size M.2 module, suitable for any PCI Express® based M.2 host connector (M-keyed). The data transfer between host (CPU) and SRAM is controlled by an on-board FPGA via PCI Express®. Other than a normal SSD, the M01-NVSRAM is not a block device, and does not require a file system for data storage. The M01-NVSRAM supports memory-mapped I/O in a BYTE, WORD and DWORD mode instead.

The M01-NVSRAM is equipped with two 16-Mbit nvSRAMs, to be read and written an infinite number of times. Automatic store to so called QuantumTrap nonvolatile elements is initiated on power-down, and recall to SRAM is managed at power-up. A simple on-board capacitor delivers sufficient energy for the store operation at power-down, and no battery is needed for backup. Since read and write operations are directly executed in the PCI Express® memory address space, random access transfers to/from the M01-NVSRAM are considerably faster than with a normal SSD. The M01-NVSRAM is suitable e.g. for industrial applications with need for a reliable power fail safe data buffer.

M01-NVSRAM • M.2 Module
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M01-NVSRAM • Simplified Block Diagram

M01-NVSRAM • Simplified Block Diagram
Feature Summary

  • M.2 Type 2280 module (according to the PCI Express® M.2 Specification)
  • Socket 3 System Interface, module key M, PCIe-based adapter pinout (PCIe x1 Gen1)
  • 2280-D5-M double sided module (4.2H host socket recommended)
  • +3.3V, 300mA max.
  • Random read/write access tbd MB/s
  • ustom specific M.2 module design on request

  • Lattice ECP5, 45k LUTs, SERDES 2.5Gbps
  • Industrial temperature
  • PCI Express® interface used for memory-mapped read/write transactions in the memory address space
  • Control function for one or two attached nvSRAMs organized x 32
  • Custom specific FPGA firmware on request

  • 2 x Cypress CY14B116S (512kx32, 16Mbit each) nvSRAM, 4MByte in total, AutoStore/Recall
  • Embedded nonvolatile elements incorporate QuantumTrap technology, producing the world's most reliable nonvolatile memory
  • Infinite read, write, and recall cycles
  • 1 million store cycles to QuantumTrap elements (automatically on power-down event)
  • Data retention 20 years
  • Industrial temperature

  • Fast memory-mapped random access read/write transfers
  • No file system required, operating system not necessary involved
  • Suitable for real time applications
  • Industrial applications with need for a reliable power fail safe data buffer

Environmental & Regulatory
  • Designed & manufactured in Germany
  • ISO 9001 certified quality management
  • Long term availability
  • Rugged solution
  • Coating, sealing, underfilling on request
  • RoHS compliant
  • Operating temperature -40°C to +85°C (industrial temperature range)
  • Storage Temperature: -40°C to +85°C, max. Gradient 5°C/min
  • Humidity 5% ... 95% RH non Condensing
  • Altitude -300m ... +3000m
  • Shock 15g 0.33ms, 6g 6ms
  • Vibration 1g 5-2000Hz
  • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)
  • MTBF 59.3 years
EKF is an ISO-9001 certified company
EKF Elektronik GmbH • Philipp-Reis-Str. 4 • 59065 Hamm • Germany
Phone +49 (0)2381/6890-0 • Fax +49 (0)2381/6890-90 • E-Mail