S25FL004K Meet Spansion Inc., S25FL004K Datasheet - Page 26

• Manufacturer Part Number: S25FL004K
• Description: 4-mbit / 8-mbit / 16-mbit Cmos 3.0 Volt Flash Memory With 104-mhz Spi Serial Peripheral Interface Multi I/o Bus
• Manufacturer: Meet Spansion Inc.

7.1
26
Write Enable (06h)
Notes:
1. The Device ID will repeat continuously until CS# terminates the instruction.
2. See Manufacturer and Device Identification table for Device ID information.
3. Security Register Address:
The Write Enable instruction
The WEL bit must be set prior to every Page Program, Quad Page Program, Sector Erase, Block Erase, Chip
Erase, Write Status Register and Erase/Program Security Registers instruction. The Write Enable instruction
is entered by driving CS# low, shifting the instruction code “06h” into the Data Input (SI) pin on the rising edge
of CLK, and then driving CS# high.
Release Power down / Device ID
(S25FL004K/S25FL008K)
Release from Deep Power down
/ Device ID (S25FL016K)
Manufacturer/ Device ID
Manufacturer/Device ID by Dual
I/O
Manufacture/Device ID by Quad
I/O
JEDEC ID
Read Unique ID
Read SFDP Register
Erase Security Registers
Program Security Registers
Read Security Registers
Security Register 1: A23-16 = 00h; A15-8 = 10h; A7-0 = byte address
Security Register 2: A23-16 = 00h; A15-8 = 20h; A7-0 = byte address
Security Register 3: A23-16 = 00h; A15-8 = 30h; A7-0 = byte address
Instruction Name
CLK
CS#
SO
SI
Mode 3
Mode 0
(2)
(3)
(3)
(3)
Figure 7.1 Write Enable Instruction Sequence Diagram
S25FL004K / S25FL008K / S25FL016K
Table 7.5 Instruction Set (ID, Security Instructions)
(Figure
48h, 5Ah
BYTE 1
(CODE)
ABh
ABh
4Bh
90h
92h
94h
9Fh
44h
42h
48h
7.1) sets the Write Enable Latch (WEL) bit in the Status Register to a 1.
0
A23-A0, M[7:0]
Manufacturer
1
(MF7-MF0)
A23-A16
A23-A16
A23-A16
BYTE 2
A23-A8
dummy
dummy
dummy
dummy
D a t a
00h
Instruction (06h)
High Impedance
2
3
S h e e t
xxxx, (MF[7:0],
A7-A0, M[7:0]
Memory Type
(ID15-ID8)
BYTE 3
dummy
dummy
dummy
ID[7:0])
dummy
A15-A8
A15-A8
A15-A8
4
00h
5
6
ID[7:0], …)
(ID7-ID0)
(MF[7:0],
(MF[7:0],
Capacity
BYTE 4
S25FL004K-016K_00_02 July 14, 2011
dummy
dummy
ID[7:0])
dummy
A7-A0
A7-A0
A7-A0
A7-A0
00h
7
Mode 0
Mode 3
(ID7-ID0)
(ID7-ID0)
(MF7-MF0)
BYTE 5
dummy
dummy
dummy
(D7-0)
(1)
(1)
(ID63-ID0)
(ID7-ID0)
BYTE 6
(D7-0)
(D7-0)
(D7-0)