MR256A08BCYS35 EverSpin Technologies Inc, MR256A08BCYS35 Datasheet - Page 4

• Manufacturer Part Number: MR256A08BCYS35
• Description: IC MRAM 256KB 35NS 44TSOP
• Manufacturer: EverSpin Technologies Inc
• Series: -r

Specifications of MR256A08BCYS35

• Format - Memory: RAM
• Memory Type: MRAM (Magnetoresistive RAM)
• Memory Size: 256K (32K x 8)
• Speed: 35ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TSOP (0.400", 10.16mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 819-1025

Everspin Technologies
Data Sheet: Advance Information
Power Up and Power Down Sequencing
MRAM is protected from write operations whenever V
exceeds V
This time allows memory power supplies to stabilize. The /E and /W control signals should
track V
startup time. In most systems, this means that these signals should be pulled up with a
resistor so that signal remains high if the driving signal is Hi-Z during power up. Any logic
that drives /E and /W should hold the signals high with a power-on reset signal for longer
than the startup time. During power loss or brownout where V
protected and a startup time must be observed when power returns above V
DD
on power up to V
DDmin
, there is a startup time of 2 ms before read or write operations can start.
DD
-0.2v or V
Table 4. Operating Conditions
IH
(whichever is lower) and remain high for the
4
DD
is less than V
DD
Document Number: MR256A08B
goes below V
WI
. As soon as V
DDmin
Rev. 1, 3/2009
WI
, writes are
.
DD