at25df041a ATMEL Corporation, at25df041a Datasheet
at25df041a
Manufacturer Part Number
at25df041a
Description
4-megabit 2.3-volt Or 2.7-volt Minimum Spi Serial Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
1.AT25DF041A.pdf
(41 pages)
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1. Description
The AT25DF041A is a serial interface Flash memory device designed for use in a
wide variety of high-volume consumer-based applications in which program code is
shadowed from Flash memory into embedded or external RAM for execution. The
flexible erase architecture of the AT25DF041A, with its erase granularity as small as
4 Kbytes, makes it ideal for data storage as well, eliminating the need for additional
data storage EEPROM devices.
The physical sectoring and the erase block sizes of the AT25DF041A have been opti-
mized to meet the needs of today’s code and data storage applications. By optimizing
the size of the physical sectors and erase blocks, the memory space can be used
much more efficiently. Because certain code modules and data storage segments
must reside by themselves in their own protected sectors, the wasted and unused
memory space that occurs with large sectored and large block erase Flash memory
devices can be greatly reduced. This increased memory space efficiency allows addi-
tional code routines and data storage segments to be added while still maintaining the
same overall device density.
Single 2.3V - 3.6V or 2.7V - 3.6V Supply
Serial Peripheral Interface (SPI) Compatible
70 MHz Maximum Clock Frequency
Flexible, Uniform Erase Architecture
Individual Sector Protection with Global Protect/Unprotect Feature
Hardware Controlled Locking of Protected Sectors
Flexible Programming Options
Automatic Checking and Reporting of Erase/Program Failures
JEDEC Standard Manufacturer and Device ID Read Methodology
Low Power Dissipation
Endurance: 100,000 Program/Erase Cycles
Data Retention: 20 Years
Complies with Full Industrial Temperature Range
Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options
– Supports SPI Modes 0 and 3
– 4-Kbyte Blocks
– 32-Kbyte Blocks
– 64-Kbyte Blocks
– Full Chip Erase
– One 16-Kbyte Top Boot Sector
– Two 8-Kbyte Sectors
– One 32-Kbyte Sector
– Seven 64-Kbyte Sectors
– Byte/Page Program (1 to 256 Bytes)
– Sequential Program Mode Capability
– 5 mA Active Read Current (Typical)
– 10 µA Deep Power-down Current (Typical)
4-megabit
2.3-volt or
2.7-volt
Minimum
SPI Serial Flash
Memory
AT25DF041A
Preliminary
3668C–DFLASH–3/08
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