EMD3D256M08BS1
EMD3D256M16BS1
DDR3 DRAM COMPATIBILITY
Everspin DDR3 Spin-Torque MRAMs are fully compatible with DDR3 standards for DRAM operation defined
in JEDEC Standard JESD79-3F, with exceptions and improvements as noted and defined in this data sheet.
•
The Spin-Torque MRAM is a non-volatile memory. All data in closed/precharged banks are retained in
memory whenever device power is removed for any reason.
•
•
Command timing will be different in some cases. See “Table 11 – Timing Parameters”on page 20.
The DDR3 standard applies to densities higher than 256Mb resulting in addressing and page size dif-
ferences.
•
•
Burst Type/Burst Order supports only the sequential burst type for CA<2:0 = 000 or 100. See ”Burst
Length, Type and Order”on page 30.
This data sheet will make references to JESD79-3F when the function, timing, parameter or condition
is identical between the MRAM and this standard. The JESD79-3F standard is available on the JEDEC
website , registration is required.
EMD3D256M08BS1/16BS1 Revision 1.3 10/2018
Copyright © 2018 Everspin Technologies
2
EVERSPIN [ Everspin Technologies ]
