N25Q128A11B1240E NUMONYX, N25Q128A11B1240E Datasheet - Page 105
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N25Q128A11B1240E
Manufacturer Part Number
N25Q128A11B1240E
Description
Manufacturer
NUMONYX
Datasheet
1.N25Q128A11B1240E.pdf
(185 pages)
Specifications of N25Q128A11B1240E
Cell Type
NOR
Density
128Mb
Access Time (max)
7ns
Interface Type
Serial (SPI)
Boot Type
Bottom
Address Bus
1b
Operating Supply Voltage (typ)
1.8V
Operating Temp Range
-40C to 85C
Package Type
TBGA
Program/erase Volt (typ)
1.7 to 2/8.5 to 9.5V
Sync/async
Synchronous
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
1.7V
Operating Supply Voltage (max)
2V
Word Size
8b
Number Of Words
16M
Supply Current
20mA
Mounting
Surface Mount
Pin Count
24
Lead Free Status / Rohs Status
Supplier Unconfirmed
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Table 21.
1. Values of (b1, b0) after power-up are defined in
9.1.25
b7-b2
S
C
DQ0
Bit
b1
b0
Sector Lock
Write Lock
Bit name
Sector
Down
Lock Register out
Write to Lock Register (WRLR)
The Write to Lock Register (WRLR) instruction allows bits to be changed in the Lock
Registers. Before it can be accepted, a Write Enable (WREN) instruction must previously
have been executed. After the Write Enable (WREN) instruction has been decoded, the
device sets the Write Enable Latch (WEL).
The Write to Lock Register (WRLR) instruction is entered by driving Chip Select (S) Low,
followed by the instruction code, three address bytes (pointing to any address in the
targeted sector and one data byte on Serial Data input (DQ0). The instruction sequence is
shown in Figure 22. Chip Select (S) must be driven High after the eighth bit of the data byte
has been latched in, otherwise the Write to Lock Register (WRLR) instruction is not
executed.
Lock Register bits are volatile, and therefore do not require time to be written. When the
Write to Lock Register (WRLR) instruction has been successfully executed, the Write
Enable Latch (WEL) bit is reset after a delay time less than tSHSL minimum value.
Any Write to Lock Register (WRLR) instruction, while an Erase, Program or Write cycle is in
progress, is rejected without having any effects on the cycle that is in progress.
Figure 33. Write to Lock Register instruction sequence
0
1
2
Instruction
Value
‘1’
‘0’
‘1’
‘0’
3
4
The Write Lock and Lock Down bits cannot be changed. Once a ‘1’ is written to the
Lock Down bit it cannot be cleared to ‘0’, except by a power-up.
The Write Lock and Lock Down bits can be changed by writing new values to them.
Write, Program and Erase operations in this sector will not be executed. The
memory contents will not be changed.
Write, Program and Erase operations in this sector are executed and will modify the
sector contents.
5
(1)
6
7
MSB
23
8
Section 7: Protection
22 21
9 10
24-bit address
Reserved
3
28 29 30 31 32 33 34 35
2
modes.
1
Function
0
MSB
7
6
Lock register
5
4
in
3
36 37 38
2
1
0
39
AI13740
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