mr25h40 Everspin Technologies, Inc, mr25h40 Datasheet - Page 13

• Manufacturer Part Number: mr25h40
• Description: 4mb Serial Spi Mram
• Manufacturer: Everspin Technologies, Inc

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
Document Number: MR25H40 Rev. 2, 1/2011
Typical
-
-
Normal Operation
Max
TBD
-
MR25H40
Unit
V
μs