S25FL016K0XMFI011 Spansion Inc., S25FL016K0XMFI011 Datasheet - Page 56

• Manufacturer Part Number: S25FL016K0XMFI011
• Description: MEMORY, FLASH, 16M, 3V, SPI, 8SOIC
• Manufacturer: Spansion Inc.

Specifications of S25FL016K0XMFI011

• Memory Size: 16Mbit
• Clock Frequency: 104MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SO
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Interface: SPI
• Memory Type: RoHS Compliant
• Memory Configuration: 8K X 256 Bytes
• Interface Type: SPI
• Rohs Compliant: Yes

7.35
56
Read Security Registers (48h)
The Read Security Register instruction is similar to the Fast Read instruction and allows one or more data
bytes to be sequentially read from one of the three security registers. The instruction is initiated by driving the
CS# pin low and then shifting the instruction code “48h” followed by a 24-bit address (A23-A0) and eight
“dummy” clocks into the SI pin. The code and address bits are latched on the rising edge of the CLK pin. After
the address is received, the data byte of the addressed memory location will be shifted out on the SO pin at
the falling edge of CLK with most significant bit (MSB) first. The byte address is automatically incremented to
the next byte address after each byte of data is shifted out. Once the byte address reaches the last byte of the
register (byte FFh), it will reset to 00h, the first byte of the register, and continue to increment. The instruction
is completed by driving CS# high. The Read Security Register instruction sequence is shown in
If a Read Security Register instruction is issued while an Erase, Program or Write cycle is in process
(BUSY=1), the instruction is ignored and will not have any effects on the current cycle. The Read Security
Register instruction allows clock rates from DC to a maximum of F
Characteristics on page
Security Register #1
Security Register #2
Security Register #3
Address
CLK
CLK
CS#
CS#
SO
SO
SI
SI
Mode 3
Mode 0
= MSB
32
7
0
6
33 34 35
59).
Figure 7.39 Read Security Registers Instruction Sequence
1
5
Dummy Byte
Instruction (48h)
2
4
3
3
36
D a t a
A23-16
00h
00h
00h
4
2
37 38 39 40
1
5
S25FL016K
6
0
S h e e t
7
7
23 22
8
6
41
9
5
42 43 44
24-bit Address
Data Out 1
21
0 0 0 1 b
0 0 1 0 b
0 0 1 1 b
10
A15-12
4
( P r e l i m i n a r y )
3
3
28 29
2
45 46
2
1
1
30 31
0
R
0
47
(see
7
6
S25FL016K_00_02 September 8, 2010
Section 8.6, AC Electrical
0 0 0 0 b
0 0 0 0 b
0 0 0 0 b
A11-8
5
Data Out 2
4
3
2
1
0
Byte Address
Byte Address
Byte Address
7
Figure
A7-0
7.39.