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. 181-8407
Mfr. Part No.S29AL008J70TFN010
MYR8.907
Each (In a Pack of 3)
units
8Mbit CFI TSOP 48 1M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.4 x 12 x 1.05mm
RS Stock No. 165-3543
Mfr. Part No.SST38VF6401-90-5C-EKE
BrandMicrochip
MYR20.82
Each (In a Tray of 96)
units
64Mbit Parallel TSOP 48 4M x 16 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 18.5 x 12.2 x 1.05mm
RS Stock No. 188-2723
Mfr. Part No.W25X20CLUXIG
BrandWinbond
MYR2.359
Each (In a Pack of 25)
units
2Mbit SPI USON 8 256K x 8 bit Surface Mount NOR 2.3 V 3.6 V - - - - 3.1 x 2.1 x 0.55mm
RS Stock No. 188-2811
Mfr. Part No.W25N01GWZEIG
BrandWinbond
MYR11.70
Each (In a Pack of 5)
units
1Gbit Quad-SPI WSON 8 128M x 8 bit Surface Mount SLC NAND 1.7 V 1.95 V - - - - 8.1 x 6.1 x 0.75mm
RS Stock No. 905-3117
Mfr. Part No.SST26VF016B-104V/SN
BrandMicrochip
MYR6.136
Each (In a Pack of 5)
units
16Mbit SPI SOIC 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 4.9 x 3.9 x 1.25mm
RS Stock No. 170-3095
Mfr. Part No.MX25L6406EMI-12G1
BrandMacronix
MYR6.314
Each (In a Tube of 44)
units
64Mbit Serial SOP 16 32M x 2 bit, 64M x 1 bit Surface Mount NOR 1.65 V 2 V - - - - 10.5 x 7.6 x 2.45mm
RS Stock No. 193-8744
Mfr. Part No.S25FL256SAGBHIC00
MYR21.535
Each (In a Pack of 2)
units
256Mbit SPI BGA 24 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 1mm
RS Stock No. 193-8741
Mfr. Part No.S25FL256SAGBHIA00
MYR21.732
Each (In a Tray of 338)
units
256Mbit SPI BGA 24 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 1mm
RS Stock No. 181-8287
Mfr. Part No.S29GL128S10TFI010
MYR15.676
Each (In a Tray of 91)
units
128Mbit CFI TSOP 56 16M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.5 x 14.1 x 1.05mm
RS Stock No. 177-5279
Mfr. Part No.S29JL032J70TFI020
MYR12.544
Each (In a Tray of 96)
units
32Mbit CFI TSOP 48 2M x 16 bit, 4M x 8 bit Surface Mount - 2.7 V 3.6 V - - - - 18.5 x 12.1 x 1.05mm
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. 125-4668
Mfr. Part No.S29AL016J70TFI010
MYR7.824
Each (In a Pack of 5)
units
16Mbit CFI, Parallel TSOP 48 1M x 16 bit, 2M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.5 x 12.1 x 1.05mm
RS Stock No. 193-8900
Mfr. Part No.S29GL512S11DHIV10
MYR38.825
Each (In a Pack of 2)
units
512Mbit CFI BGA 64 64M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 9 x 9 x 1mm
RS Stock No. 165-3434
Mfr. Part No.SST25VF010A-33-4I-SAE
BrandMicrochip
MYR2.319
Each (In a Tube of 100)
units
1Mbit SPI SOIC 8 128K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 4 x 5 x 1.5mm
RS Stock No. 165-4167
Mfr. Part No.SST26VF016B-104V/SN
BrandMicrochip
MYR6.137
Each (In a Tube of 100)
units
16Mbit SPI SOIC 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 4.9 x 3.9 x 1.25mm
RS Stock No. 193-8876
Mfr. Part No.S29GL256S10DHI010
MYR24.837
Each (In a Tray of 260)
units
256Mbit CFI BGA 64 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 9 x 9 x 1mm
RS Stock No. 181-8254
Mfr. Part No.S25FS128SDSNFI101
MYR12.482
Each (In a Tube of 99)
units
128Mbit SPI SOIC 8 16M x 8 bit Surface Mount NOR 1.7 V 2 V - - - - 5.28 x 5.28 x 1.9mm
RS Stock No. 188-2798
Mfr. Part No.W25Q32JVSSIM
BrandWinbond
MYR2.662
Each (In a Pack of 25)
units
32Mbit Quad-SPI SOIC 8 4M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 5.38 x 5.38 x 1.91mm
RS Stock No. 197-6859
Mfr. Part No.S25HL512TDPNHI010
MYR29.306
Each (In a Tray of 338)
units
512Mbit SPI - 8 - - NOR - 3 V - - - - -
RS Stock No. 188-2510
Mfr. Part No.W25M02GVTBIG
BrandWinbond
MYR18.391
Each (In a Tray of 480)
units
2Gbit Quad-SPI TFBGA 24 256M x 8 bit Surface Mount SLC NAND 2.7 V 3.6 V - - - - 8.1 x 6.1 x 0.85mm