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 the 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 a 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, smartphones and cameras.

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Description Price 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
RS Stock No. 188-2540
Mfr. Part No.W25Q80DLUXIE
BrandWinbond
MYR2.214
Each (On a Reel of 4000)
units
8Mbit Quad-SPI USON 8 1M x 8 bit Surface Mount NOR 2.3 V 3.6 V - - - - 3.1 x 2.1 x 0.55mm
RS Stock No. 193-8826
Mfr. Part No.S29GL064S70BHI030
MYR17.862
Each (In a Pack of 5)
units
64Mbit CFI BGA 48 8M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8.15 x 6.15 x 0.84mm
RS Stock No. 171-2183
Mfr. Part No.W25M512JVFIQ/TUBE
BrandWinbond
MYR23.488
Each (In a Tube of 44)
units
512Mbit SPI SOIC 16 64M x 8 Surface Mount - 2.7 V 3.6 V - - - - 10.49 x 7.59 x 2.34mm
RS Stock No. 182-3306
Mfr. Part No.S25FL256SAGBHI200
MYR14.343
Each (In a Tray of 338)
units
256Mbit CFI, SPI BGA 24 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 1mm
RS Stock No. 124-2663
Mfr. Part No.S29GL128P90FFIR10
MYR20.52
Each
units
128Mbit CFI FPBGA 64 128M x 1 bit Surface Mount - 3 V 3.6 V - - - - 13 x 11 x 1mm
RS Stock No. 188-2534
Mfr. Part No.W25Q64JVSSIQ
BrandWinbond
MYR3.112
Each (In a Tube of 90)
units
64Mbit Quad-SPI SOIC 8 8M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 5.38 x 5.38 x 1.91mm
RS Stock No. 170-3136
Mfr. Part No.MX29LV040CQI-70G
BrandMacronix
MYR9.076
Each (In a Tube of 32)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount - 2.7 V 3.6 V - - - - 11.5 x 14.12 x 2.89mm
RS Stock No. 188-2864
Mfr. Part No.W25Q128JVEIM
BrandWinbond
MYR10.38
Each (In a Pack of 5)
units
128Mbit Quad-SPI WSON 8 16M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8.1 x 6.1 x 0.75mm
RS Stock No. 144-9114
Mfr. Part No.SST25PF040C-40I/MF
BrandMicrochip
MYR4.24
Each (In a Tube of 98)
units
4Mbit SPI WDFN 8 512K x 8 bit Surface Mount Split Gate 2.3 V 3.6 V - - - - 6 x 5 x 0.72mm
RS Stock No. 193-8851
Mfr. Part No.S29GL128S10DHI010
MYR22.11
Each (In a Pack of 2)
units
128Mbit CFI BGA 64 16M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 9 x 9 x 1mm
RS Stock No. 188-2749
Mfr. Part No.W25Q256JVFIM
BrandWinbond
MYR12.934
Each (In a Pack of 5)
units
256Mbit Quad-SPI SOIC 16 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 10.49 x 7.59 x 2.34mm
RS Stock No. 146-0230
Mfr. Part No.SST25VF020-20-4I-SAE
BrandMicrochip
MYR2.996
Each (In a Tube of 100)
units
2Mbit SPI SOIC 8 256K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 5 x 4 x 1.5mm
RS Stock No. 914-2702
Mfr. Part No.MX25L8006EM2I-12G
BrandMacronix
MYR1.822
Each (In a Pack of 10)
units
8Mbit Serial SOP 8 4M x 2 bit, 8M x 1 bit Surface Mount NOR 1.65 V 3.6 V - - - - 5.03 x 4 x 1.55mm
RS Stock No. 168-2687
Mfr. Part No.SST26WF064C-104I/MF
BrandMicrochip
MYR13.362
Each (In a Tube of 98)
units
64Mbit Serial-SPI WDFN 8 8M x 8 Surface Mount Split Gate 1.65 V 1.95 V - - - - 5 x 6 x 0.75mm
RS Stock No. 124-2650
Mfr. Part No.S25FL256SAGMFIG01
MYR17.64
Each (In a Pack of 2)
units
256Mbit SPI SOIC 16 64M x 4 bit, 128M x 2 bit, 256M x 1 bit Surface Mount NOR 2.7 V 3.6 V - - - - 10.3 x 7.5 x 2.55mm
RS Stock No. 170-3141
Mfr. Part No.MX29LV160DTTI-70G
BrandMacronix
MYR7.863
Each (In a Tray of 96)
units
16Mbit Parallel TSOP 48 1M x 16 bit, 2M x 8 bit Surface Mount - 2.7 V 3.6 V - - - - 18.5 x 12.1 x 1.05mm
New
RS Stock No. 215-5789
Mfr. Part No.S25FL512SAGMFI010
MYR26.576
Each (In a Tray of 240)
units
512Mbit SPI SOIC 16 64 M x 8 - NOR - - - - - - -
RS Stock No. 125-5844
Mfr. Part No.S29GL256S11TFIV10
MYR28.60
Each (In a Pack of 2)
units
256Mbit CFI, Parallel TSOP 56 16M x 16 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.5 x 14.1 x 1.05mm
RS Stock No. 197-5855
Mfr. Part No.SST25VF016B-50-4I-QAF-T
BrandMicrochip
MYR7.08
Each (In a Pack of 5)
units
16Mbit SPI WSON-8 8 2 M x 8 - NOR 2.7 V 3.6 V - - - - -
RS Stock No. 723-8839
Mfr. Part No.SST49LF008A-33-4C-NHE
BrandMicrochip
MYR20.37
Each
units
8Mbit Parallel PLCC 32 1024K x 8 bit Surface Mount Split Gate 3 V 3.6 V Symmetrical - - - 11.51 x 14.05 x 2.84mm