S25FL040A Meet Spansion Inc., S25FL040A Datasheet - Page 27

• Manufacturer Part Number: S25FL040A
• Description: Small Sector For Boot And Parameter Storage 4-megabit Cmos 3.0 Volt Flash Memory With 50 Mhz Spi Bus Interface
• Manufacturer: Meet Spansion Inc.

9.13
July 2, 2007 S25FL040A_00_B2
Release from Deep Power Down (RES)
The device requires the Release from Deep Power Down (RES) command to exit the Deep Power Down
mode. When the device is in the Deep Power Down mode, all commands except RES are ignored.
The host system must drive CS# low and write the RES command to SI. CS# must be driven low for the entire
duration of the sequence. The command sequence is shown in
The host system must drive CS# high t
from DP mode to the standby mode after a delay of t
the device can execute any read or write command.
SCK
CS#
SI
SO
Figure 9.13 Release from Deep Power Down (RES) Command Sequence
Mode 3
Mode 0
Hi-Z
D a t a
S h e e t
0
RES(max)
S25FL040A
1
Deep Power-down Mode
2
after the 8-bit RES command byte. The device transitions
Command
3
RES
4
(see
5
Table 16.1 on page
6
Figure 9.13
7
t
and
RES
Table
Standby Mode
33). In the standby mode,
9.5.
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