Everspin Technologies EM064LX and EM128LX HR xSPI Persistent Memory
Everspin Technologies EM064LX and EM128LX HR Expanded Serial Peripheral Interface (xSPI) Persistent Memory are based on advanced Spin-Transfer Torque Magnetic RAM (STT-MRAM) technology designed for industrial applications. These devices offer high performance, multiple I/O, high speed, low-pin-count, and SPI-compatible bus interfaces. The EM064LX and EM128LX xSPI persistent memory support clock speeds up to 133MHz (STR) and 90MHz (DTR), enabling data throughput up to 133Mbps. These devices operate from 1.7V to 2V (1.8V nominal) with a Quad SPI interface supporting Single Transfer Rate (STR) and Double Transfer Rate (DTR) modes. The EM064LX and EM128LX xSPI persistent memory allow byte-level writes and reads with no erase cycles, ensuring unlimited endurance and 10-year data retention at 125°C.
Features
- Expanded SPI bus interface supporting quad and single SPI protocol
- Up to 133MHz, SPI, and QSPI
- Up to 90MHz QSPI DTR
- Unlimited read, write, and erase operations for the supported life of the product data endurance
- 10 Years minimum @ 125⁰C data retention
- JEDEC compliant: JESD251, JESD251-1
- Byte-level writes and reads with no erase required as persistent memory
- No external ECC required for data integrity
- Typical low power modes:
- Standby 300µA and 64Mb
- Deep power down 290µA and 64Mb
- NVSRAM, FRAM, NOR, and Toggle MRAM SPI compatibility
- SPI and xSPI commands for program/erase emulated NOR compatible Execute-In-Place (XIP)
- Non-volatile settings are not reflow protected
- Dedicated 256-byte OTP area outside main memory:
- Readable and user-lockable
- Permanent lock with WRITE OTP command
- Not reflow protected
- Erase capability:
- Chip/bulk erase, and sector erase
- Subsector erase 4KB and 32KB granularity
- 1.7V to 2V (1.8V nominal) voltage
- EM064LX 64Mb and EM128LX 128Mb
- Boot in x1 or x4 configurations
- Software reset and hardware reset pin available
- 3-byte and 4-byte address modes
- Sequential (burst) read and writes
- JEDEC-standard 3-byte signature
- JEDEC standard and RoHS compliant
- Packages:
- 8-pin DFN and 6mm x 8mm
- 24-ball BGA and 6mm x 8mm
- -40°C to 125°C operating temperature range
- AEC-Q100 Grade 1
- Security and write protection:
- 16 configurable hardware write-protected regions plus top/bottom select
- Program/erase protection during power-up
- CRC command to detect accidental changes to user data
Applications
- Industrial automation
- Data centers
Block Diagram
