M25PE10, M25PE20
Release from Deep Power-down (RDP)
High. Sending additional clock cycles on Serial
Clock (C), while Chip Select (S) is driven Low,
cause the instruction to be rejected, and not exe-
cuted.
Once the device has entered the Deep Power-
down mode, all instructions are ignored except the
Release from Deep Power-down (RDP) instruc-
tion. Executing this instruction takes the device out
of the Deep Power-down mode.
After Chip Select (S) has been driven High,
followed by a delay, t
, the device is put in
RDP
Standby Power mode. Chip Select (S) must
remain High at least until this period is over. The
device waits to be selected, so that it can receive,
decode and execute instructions.
Any Release from Deep Power-down (RDP) in-
struction, while an Erase, Program or Write cycle
is in progress, is rejected without having any ef-
fects on the cycle that is in progress.
The Release from Deep Power-down (RDP) in-
struction is entered by driving Chip Select (S) Low,
followed by the instruction code on Serial Data In-
put (D). Chip Select (S) must be driven Low for the
entire duration of the sequence.
The instruction sequence is shown in Figure 19.
The Release from Deep Power-down (RDP) in-
struction is terminated by driving Chip Select (S)
Figure 19. Release from Deep Power-down (RDP) Instruction Sequence
S
tRDP
0
1
2
3
4
5
6
7
C
D
Instruction
High Impedance
Q
Deep Power-down Mode
Standby Power Mode
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STMICROELECTRONICS [ ST ]
