Flash Memory

Flash memory is a type of non-volatile memory storage. This means that it can be electrically erased and programmed at byte-level, and it retains data regardless of a power source. Flash memory ICs are used within circuits to add data storage to an application.

Flash memory is a type of EEPROM (Electronically Erasable Programmable Read Only Memory). EEPROM ICs can erase any byte of memory, which flash memory erases chunks or blocks of memory at a time. Flash memory does have a limited life in terms of number of write cycles and tends to be used for programmed storage that is infrequently changed.

The memory size of a flash device refers to the capacity for data storage. This is often given in Mbit or MB.

You can learn more in our comprehensive guide to flash memory.


How does flash memory work?

Flash memory ICs work by retaining small parts of electricity between its transistors, allowing information to be stored with or without power. Flash stores data even when the power is switched off. Unlike RAM which loses data when the power is switched off.

What is flash memory used for?

Flash memory ICs are used in digital cameras, smartphones, computers, solid state drives (SSD) and video game consoles. Flash memory is also found in scientific, medical and industrial applications.

What is the difference between NOR flash and NAND flash?

NOR

  • NOR flash memory provides a faster speed as possessing random access capabilities, a good choice for mobile devices as it is suitable to store large quantities of code.
  • The erase and write function is slower than NAND.
  • Hosts a larger memory cell size than NAND.
  • Limiting scaling capabilities make bit density achievable.

NAND

  • Provides fast rewritable and erase capabilities but is a little slower than NOR within the read speed.
  • NAND flash memory is a popular choice for those needing flash drive for digital video, data storage and music. This is because of NAND's high speed and high capacity alongside being a flash memory that is cheap as the cost per bit is generally lower.
  • Quickly re-write data, over and over again
  • Stores a large quantity of data and commonly used for USB sticks, smart phones and cameras.

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Description Prix Memory Size Interface Type Package Type Pin Count Organisation Mounting Type Cell Type Minimum Operating Supply Voltage Maximum Operating Supply Voltage Block Organisation Length Height Width Dimensions
N° de stock RS 168-7915
Référence fabricantAT25SF041-SSHD-B
0,237 €
Each (In a Tube of 98)
Unité
4Mbit SPI SOIC 8 512K x 8 Surface Mount - 2.5 V 3.6 V - - - - 5.05 x 3.99 x 1.5mm
N° de stock RS 822-8473
Référence fabricantAT25SF041-SSHD-B
0,261 €
Each (In a Pack of 10)
Unité
4Mbit SPI SOIC 8 512K x 8 Surface Mount - 2.5 V 3.6 V - - - - 5.05 x 3.99 x 1.5mm
N° de stock RS 869-6179
Référence fabricantSST26VF064B-104I/SM
MarqueMicrochip
2,01 €
Each (In a Pack of 2)
Unité
64Mbit SPI SOIJ 8 8M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5.26 x 5.25 x 1.98mm
N° de stock RS 165-4189
Référence fabricantSST26VF064B-104I/SM
MarqueMicrochip
1,931 €
Each (In a Tube of 90)
Unité
64Mbit SPI SOIJ 8 8M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5.26 x 5.25 x 1.98mm
N° de stock RS 782-4636
Référence fabricantN25Q032A11EF640E
MarqueMicron
0,816 €
Each (In a Pack of 5)
Unité
32Mbit SPI MLP 8 4M x 8 bit Surface Mount NOR 1.7 V 2 V Symmetrical - - - 6 x 5 x 0.85mm
N° de stock RS 823-4513
Référence fabricantSST39SF020A-70-4C-WHE
MarqueMicrochip
1,028 €
Each (In a Pack of 5)
Unité
2MB Parallel TSOP 32 256K x 8 bit Surface Mount Split Gate 4.5 V 5.5 V Symmetrical - - - 12.5 x 8.1 x 1.05mm
N° de stock RS 165-2120
Référence fabricantSST39SF020A-70-4C-WHE
MarqueMicrochip
0,956 €
Each (In a Tray of 208)
Unité
2MB Parallel TSOP 32 256K x 8 bit Surface Mount Split Gate 4.5 V 5.5 V Symmetrical - - - 12.5 x 8.1 x 1.05mm
N° de stock RS 823-3980
Référence fabricantSST25VF512A-33-4I-SAE
MarqueMicrochip
0,39 €
Each (In a Pack of 20)
Unité
512kB SPI SOIC 8 64k x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5 x 4 x 1.5mm
N° de stock RS 146-0255
Référence fabricantSST25VF512A-33-4I-SAE
MarqueMicrochip
0,364 €
Each (In a Tube of 100)
Unité
512kB SPI SOIC 8 64k x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5 x 4 x 1.5mm
N° de stock RS 824-8966
Référence fabricantSST25VF020B-80-4C-SAE
MarqueMicrochip
0,609 €
Each (In a Pack of 10)
Unité
2Mbit SPI SOIC 8 256k x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5 x 4 x 1.5mm
N° de stock RS 861-0661
Référence fabricantSST25VF020-20-4C-SAE
MarqueMicrochip
0,626 €
Each (In a Pack of 10)
Unité
2Mbit SPI SOIC 8 256K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 5 x 4 x 1.5mm
N° de stock RS 145-9101
Référence fabricantSST39LF040-55-4C-NHE
MarqueMicrochip
1,21 €
Each (In a Tube of 30)
Unité
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 3 V 3.6 V - - - - 11.43 x 13.97 x 2.79mm
N° de stock RS 805-1315
Référence fabricantLE25U40CMC-AH
0,228 €
Each (On a Tape of 20)
Unité
4Mbit SPI SOP J 8 512K x 8 bit Surface Mount - 2.3 V 3.6 V Symmetrical - - - 4.9 x 3.9 x 1.5mm
N° de stock RS 823-4510
Référence fabricantSST39SF020A-70-4C-PHE
MarqueMicrochip
1,222 €
Each (In a Pack of 5)
Unité
2MB Parallel PDIP 32 256K x 8 bit Through Hole Split Gate 4.5 V 5.5 V Symmetrical - - - 42.04 x 13.97 x 3.81mm
N° de stock RS 171-1466
Référence fabricantS29AL008J70TFI020
1,206 €
Each (In a Tray of 96)
Unité
8Mbit CFI, Parallel TSOP 48 1M x 8 bit, 512K x 16 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.5 x 12.1 x 1.05mm
N° de stock RS 841-7500
Référence fabricantSST26VF016B-104I/SM
MarqueMicrochip
1,098 €
Each (In a Pack of 5)
Unité
16Mbit Quad-SPI SOIJ 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 5.26 x 5.25 x 1.98mm
N° de stock RS 177-5295
Référence fabricantS25FL256SAGNFI000
2,199 €
Each (In a Tray of 338)
Unité
256Mbit SPI WSON 8 128M x 2 bit, 256M x 1 bit, 64M x 4 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 0.75mm
N° de stock RS 723-8864
Référence fabricantSST25VF016B-75-4I-QAF-T
MarqueMicrochip
2,21 €
Each (In a Pack of 2)
Unité
16Mbit SPI WSON 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 6mm 0.75mm 5mm 6 x 5 x 0.75mm
N° de stock RS 165-4123
Référence fabricantSST26VF016B-104I/SM
MarqueMicrochip
1,059 €
Each (In a Tube of 90)
Unité
16Mbit Quad-SPI SOIJ 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 5.26 x 5.25 x 1.98mm
N° de stock RS 165-2088
Référence fabricantSST39SF010A-70-4I-NHE
MarqueMicrochip
1,009 €
Each (In a Tube of 30)
Unité
1MB Parallel PLCC 32 128K x 8 bit Surface Mount Split Gate 4.5 V 5.5 V Symmetrical - - - 14.05 x 11.51 x 2.84mm