S25FL004A Meet Spansion Inc., S25FL004A Datasheet - Page 23

• Manufacturer Part Number: S25FL004A
• Description: 4-megabit Cmos 3.0 Volt Flash Memory With 50 Mhz Spi Bus Interface
• Manufacturer: Meet Spansion Inc.

9.12
July 9, 2007 S25FL004A_00_B3
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#
SO
SI
Hi-Z
Mode 3
Mode 0
SCK
CS#
SI
SO
Figure 9.12 Release from Deep Power Down (RES) Command Sequence
Mode 3
Mode 0
Hi-Z
Figure 9.11 Deep Power Down (DP) Command Sequence
D a t a
0
1
S h e e t
0
2
Command
RES(max)
1
Deep Power-down Mode
S25FL004A
3
2
4
Command
after the 8-bit RES command byte. The device transitions
3
5
RES
4
Standby Mode
6
(see
5
7
6
Table 16.1 on page
Figure 9.12
7
t DP
t
RES
and
Deep Power-down Mode
Table 9.4 on page
Standby Mode
28). In the standby mode,
24.
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