MR25H40MDFR Everspin Technologies, MR25H40MDFR Datasheet - Page 13

• Manufacturer Part Number: MR25H40MDFR
• Description: NVRAM 4Mb 3.3V 512Kx8 SPI Pre-Qual Sample MRAM
• Manufacturer: Everspin Technologies

Specifications of MR25H40MDFR

• Rohs: yes
• Data Bus Width: 8 bit
• Memory Size: 4 MB
• Organization: 512 K x 8
• Interface Type: SPI
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Operating Current: 20 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: DFN-8
• Maximum Power Dissipation: 0.6 W
• Operating Temperature Range: - 40 C to + 85 C
• Operating Voltage: 3 V to 3.6 V

Everspin Technologies © 2011
TIMING SPECIFICATIONS
Power-Up Timing
The MR25H40 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
400
PU
13
= 400 μs after power up. Users must wait this time
t
PU
Time
Typical
-
-
Normal Operation
Max
TBD
-
MR25H40 Rev. 5, 11/2011
MR25H40
Unit
V
μs