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. 177-5292
Mfr. Part No.S25FL128SAGBHIA00
MYR10.579
Each (In a Tray of 338)
units
128Mbit SPI BGA 24 32M x 4 bit, 64M x 2 bit, 128M x 1 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 0.9mm
RS Stock No. 177-5284
Mfr. Part No.S34ML08G201TFI000
MYR82.99
Each (In a Tray of 96)
units
8Gbit Parallel TSOP 48 4G x 2 bit Surface Mount NAND 2.7 V 3.6 V - - - - 18.5 x 12.1 x 1.05mm
RS Stock No. 193-5557
Mfr. Part No.SST26VF016BEUI-104I/SN
BrandMicrochip
MYR7.15
Each (In a Tube of 100)
units
- - SOIC 8 - Surface Mount - - - - - - - -
RS Stock No. 145-9474
Mfr. Part No.AT45DB081E-SHN-B
MYR5.63
Each (In a Tube of 90)
units
8650752bit SPI SOIC 8 4096 pages x 256 bytes Surface Mount - 1.7 V 3.6 V - - - - 5.4 x 5.35 x 1.91mm
RS Stock No. 823-4490
Mfr. Part No.SST39SF010A-70-4C-NHE
BrandMicrochip
MYR5.508
Each (In a Pack of 10)
units
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
RS Stock No. 914-2709
Mfr. Part No.MX25L8006EM1I-12G
BrandMacronix
MYR1.901
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. 124-2641
Mfr. Part No.S25FL128SAGMFI001
MYR13.01
Each (In a Pack of 5)
units
128Mbit SPI SOIC 16 32M x 4 bit, 64M x 2 bit, 128M x 1 bit Surface Mount NOR 2.7 V 3.6 V - - - - 10.3 x 7.5 x 2.55mm
RS Stock No. 170-3088
Mfr. Part No.MX25L3235EM2I-10G
BrandMacronix
MYR4.041
Each (In a Tube of 92)
units
32Mbit Serial SOP 8 8M x 4 bit, 16M x 2 bit, 32M x 1 bit Surface Mount NOR 2.7 V 3.6 V - - - - 5.38 x 5.33 x 1.91mm
RS Stock No. 197-6870
Mfr. Part No.S25HS512TDPMHI010
MYR29.193
Each (In a Tray of 240)
units
512Mbit SPI - 16 - - NOR - 1.8 V - - - - -
RS Stock No. 193-8867
Mfr. Part No.S29GL256P11FFIV20
MYR38.18
Each (In a Pack of 2)
units
256Mbit CFI BGA 64 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 13 x 11 x 1mm
RS Stock No. 193-8742
Mfr. Part No.S25FL256SAGBHIA00
MYR21.145
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. 723-8801
Mfr. Part No.SST39VF3201B-70-4C-EKE
BrandMicrochip
MYR10.02
Each
units
32Mbit Parallel TSOP 48 2M 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. 124-2643
Mfr. Part No.S25FL128SAGNFI000
MYR12.13
Each (In a Pack of 5)
units
128Mbit SPI WSON 8 32M x 4 bit, 64M x 2 bit, 128M x 1 bit Surface Mount NOR 2.7 V 3.6 V - - - - 8 x 6 x 0.75mm
RS Stock No. 193-8868
Mfr. Part No.S29GL256P11TFI020
MYR33.953
Each (In a Tray of 91)
units
256Mbit CFI TSOP 56 32M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 18.5 x 14.1 x 1.05mm
RS Stock No. 825-0985
Mfr. Part No.SST39VF3201B-70-4I-EKE
BrandMicrochip
MYR10.23
Each (In a Pack of 5)
units
32Mbit Parallel TSOP 48 2M x 16 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical - - - 18.4 x 12.2 x 1mm
RS Stock No. 197-6881
Mfr. Part No.S26HL512TFPBHI010
MYR51.83
Each
units
512Mbit - - 24 - - NOR - 3 V - - - - -
RS Stock No. 181-8338
Mfr. Part No.S25FL064LABMFI011
MYR7.61
Each (In a Pack of 3)
units
64Mbit SPI SOIC 8 8M x 8 bit Surface Mount NOR 2.7 V 3.6 V - - - - 5.28 x 5.28 x 1.9mm
RS Stock No. 822-8477
Mfr. Part No.AT25DN512C-SSHF-B
MYR1.197
Each (In a Pack of 10)
units
512kbit SPI SOIC 8 - Surface Mount - 2.3 V 3.6 V - - - - 5.05 x 3.99 x 1.5mm
RS Stock No. 165-2053
Mfr. Part No.SST25VF016B-50-4I-S2AF
BrandMicrochip
MYR5.73
Each (In a Tube of 90)
units
16Mbit SPI SOIC 8 2M x 8 bit Surface Mount Split Gate 2.7 V 3.6 V - - - - 5.4 x 5.4 x 1.91mm
RS Stock No. 177-9657
Mfr. Part No.SST25VF080B-50-4I-S2AE
BrandMicrochip
MYR4.197
Each (In a Tube of 90)
units
8Mbit Serial-SPI SOIC 8 - Surface Mount Split Gate 2.7 V 3.6 V - - - - 5 x 4 x 1.5mm