MR25H256CDC EverSpin Technologies Inc, MR25H256CDC Datasheet - Page 13

• Manufacturer Part Number: MR25H256CDC
• Description: IC MRAM 256KBIT 40MHZ 8DFN
• Manufacturer: EverSpin Technologies Inc

Specifications of MR25H256CDC

• Format - Memory: RAM
• Memory Type: MRAM (Magnetoresistive RAM)
• Memory Size: 256K (32K x 8)
• Speed: 40MHz
• Interface: SPI Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-VDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 819-1015

Everspin Technologies © 2010
TIMING SPECIFICATIONS
Power-Up Timing
The MR25H256 is not accessible for a start-up time, t
from the time when V
stable. The CS signal should be pulled up to V
sequence.
Parameter
Write Inhibit Voltage
Startup Time
V
V
DD
DD
(max)
(min)
V
V
WI
DD
Reset state
of the
device
DD
(min) is reached until the first CS low to allow internal voltage references to become
Chip Selection not allowed
Symbol
V
t
PU
WI
Figure 4.3 Power-Up Timing
Table 4.3 Power-Up
DD
so that the signal tracks the power supply during power-up
Min
2.2
-
13
PU
= 400 μs after power up. Users must wait this time
t
PU
Time
Document Number: MR25H256 Rev. 2, 4/2010
Typical
-
-
Normal Operation
Max
2.7
400
MR25H256
Unit
V
μs