FEDR45V100A-01
MR45V100A
11/21
SLEEP
SLEEP command transits MR45V100A to SLEEP Mode, and becomes low current consumption status.
Enter Sleep Mode
(1) Send SLEEP command “B9h”.
(2) MR45V100A starts transition to SLEEP mode after rising edge of CS#.
After the command is determined at 7th clock of SCK, SCK and SI input becomes “Don’t care” and
transit to SLEEP mode at the rising edge of CS#.
While CS# keeping “High” level, MR45V100A maintains SLEEP mode.
Exit Sleep Mode
(1) When CS# falling to Low level, MR45V100A start returning SLEEP Mode.
(2) When the time of tREC being after CS# falling, the return operation from SLEEP mode is finished and
command can be input.
And, before the time of tREC, the confirmation of returning is possible by doing dummy read.
0 1 2 3 4 5 6 7
CS#
SCK
SI
SO
Hi
1 0 1 1 1 0 0 1
↑Enter SLEEP
Mode
↑Start of return
from SLEEP
0123 4
↑Exit SLEEP
Mode
t
REC
VALID
t
SHSL
SL
