lrs1382 Sharp Microelectronics of the Americas, lrs1382 Datasheet - Page 37
lrs1382
Manufacturer Part Number
lrs1382
Description
Flash Memory
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LRS1382.pdf
(114 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LRS1382
Manufacturer:
SHARP
Quantity:
20 000
- Current page: 37 of 114
- Download datasheet (4Mb)
16. Flash Memory Data Protection
Noises having a level exceeding the limit specified in the specification may be generated under specific operating conditions on
some systems. Such noises, when induced onto F-WE signal or power supply, may be interpreted as false commands, causing
undesired memory updating. To protect the data stored in the flash memory against unwanted writing, systems operating with the
flash memory should have the following write protect designs, as appropriate.
The below describes data protection method.
Data Protection during voltage transition
1. Protecting data in specific block
2. Data Protection through F-V
1. Data protection thorough F-RST
• Any locked block by setting its block lock bit is protected against the data alternation. When F-WP is V
• For detailed block locking scheme, see Chapter 5. Command definitions for Flash Memory.
• When the level of F-V
• For the lockout voltage, refer to the specification. (See Chapter 11. DC Electrical Characteristics)
• When the F-RST is kept low during power up and power down sequence, write operation on the flash memory is
• For the details of F-RST control, refer to the specification.
down block by setting its block lock-down bit is protected from lock status changes. By using this function, areas can be
defined, for example, program area (locked blocks), and data area (unlocked blocks).
blocks are locked and the data in the blocks are completely write protected.
disabled, write protecting all blocks.
(See Chapter 12.6 AC Electrical Characteristics for Flash Memory)
PP
PP
is lower than V
PPLK
(lockout voltage), write operation on the flash memory is disabled. All
L R S1 3 8 2
IL
, any locked-
35
Related parts for lrs1382
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Transistor,bjt,array,darlington,45v V Br Ceo,400ma I C ,dip
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Single-chip Driver K/320 K-pixel Ccds With Dual-power-supply Operation
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Single-chip Driver K/320 Pixel Ccds With Dual-power-supply Operation
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Flash Memory 16mbit 2mbitx8
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Variable Output, Surface Mount Type Power-loss Voltage Regulators
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Voltage Operation Power-loss Voltage Regulator
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Voltage Operation Power-loss Voltage Regulator
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Variable Output, Compact Surface Mount Type Power-loss Voltage Regulators
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Stacked Chip Flash Memory Sram
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Pulse Dialer Cmos
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Tone Dialer
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
High Isolation Voltage Type, General Purpose Photocoupler
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
High Sensitivity, High Output Type Photocoupler
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
Pulse Tone Dialer
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet:
Part Number:
Description:
8-bit Single-chip Microcomputer ( Controllers For General Purpose )
Manufacturer:
Sharp Microelectronics of the Americas
Datasheet: