EEPROM

EEPROM is short for Electrically Erasable Programmable Read-Only Memory. It is a non-volatile memory used in devices that are required to hold small amounts of data within a circuit in a compact package. Non-volatile data is able to be erased and reprogrammed.

The read-only memory or ROM can be erased and reprogrammed through the application of electrical voltages. EEPROM chips can be modified whilst still in a computer system and their non-volatile functionality means the memory can be retrieved even after the device or computer has been turned off and back on again.

Where is EEPROM memory used?

EEPROM devices are found in computers, microcontrollers and remote keyless systems to name a few. Flash Memory is another type of EEPROM which is commonly used in applications such as USB sticks.

EEPROM Interface Types:

  • Serial EEPROM ICs use interfaces such as SPI or I2C. They often feature lower current consumption and voltage. They are also often smaller as can utilise packages with 8 pins or less.
  • Parallel EEPROM ICs offer better memory density and AC performance. It is often quicker than EEPROM but usually has a higher number of pins.

Benefits to EEPROM Memory

There are many benefits to using EEPROM memory in a computer or electronic device. The ability to erase the entire contents of an EEPROM chip as well as being able to erase single bytes per section is invaluable. As well, a variety of interfaces are available for EEPROM with both serial and parallel buses. Programming capabilities of EEPROM are easy and efficient while being programmable without removing from a device board or testing set up.


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Description Price Memory Size Interface Type Package Type Mounting Type Pin Count Organisation Minimum Operating Supply Voltage Maximum Operating Supply Voltage Programming Voltage Number of Bits per Word Dimensions Automotive Standard Data Retention Maximum Operating Temperature
RS Stock No. 197-5346
Mfr. Part No.AT24CM01-XHM-B
BrandMicrochip
PHP74.557
Each (In a Tube of 100)
units
1Mbit Serial-2 Wire, Serial-I2C TSSOP-8 Surface Mount 8 - - - - - - - - -
RS Stock No. 667-8141
Mfr. Part No.24AA02E48-I/SN
BrandMicrochip
PHP14.449
Each (In a Pack of 10)
units
2kbit Serial-I2C SOIC Surface Mount 8 256 x 8 bit 1.7 V 5.5 V 1.7 → 5.5V - 4.9 x 3.9 x 1.25mm - 200yr +85 °C
RS Stock No. 127-8186
Mfr. Part No.AT93C46D-TH-B
BrandMicrochip
PHP11.903
Each (In a Pack of 50)
units
1kbit Serial-3 Wire TSSOP Surface Mount 8 64 x 16 bit, 128 x 8 bit 1.8 V 5.5 V - 8 bit, 16 bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 185-0700
Mfr. Part No.BR24T02FVT-WGE2
BrandROHM
PHP20.74
Each (In a Pack of 25)
units
2kbit Serial-2 Wire, Serial-I2C TSSOP-B Surface Mount 8 256 x 8 bit 1.6 V 5.5 V 1.6 → 5.5V 8bit 3 x 4.4 x 1mm - 40yr +85 °C
RS Stock No. 686-2368
Mfr. Part No.M95040-WMN6TP
PHP10.761
Each (In a Pack of 25)
units
4kbit SPI SOIC Surface Mount 8 512 x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 4.9 x 3.9 x 1.25mm - 40yr +85 °C
RS Stock No. 197-5334
Mfr. Part No.AT24CM01-SHD-B
BrandMicrochip
PHP80.198
Each (In a Tube of 95)
units
1Mbit Serial-2 Wire, Serial-I2C SOIC-8 Surface Mount 8 - - - - - - - - -
RS Stock No. 781-4837
Mfr. Part No.CAT24C64YI-GT3JN
PHP28.611
Each (In a Pack of 10)
units
64kbit Serial-I2C TSSOP Surface Mount 8 8K x 8 bit 1.7 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 196-1991
Mfr. Part No.M95512-WMN6TP
PHP60.144
Each (On a Reel of 2500)
units
512kbit Serial SO Surface Mount 8 65536 K x 8 bits 2.5 V 5.5 V - - 5 x 4 x 1.5mm - - +130 °C
RS Stock No. 185-9216
Mfr. Part No.NV25320DWHFT3G
PHP73.894
Each (In a Pack of 7)
units
32kbit SPI SOIC Surface Mount 8 4k x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm AEC-Q100 200yr +150 °C
RS Stock No. 178-4047
Mfr. Part No.24AA02E64-I/SN
BrandMicrochip
PHP13.871
Each (In a Tube of 100)
units
2kbit Serial-2 Wire SOIC Surface Mount 8 128 x 8 bit 1.7 V 5.5 V - 8bit 4.9 x 3.9 x 1.5mm - 200yr +85 °C
RS Stock No. 829-6975
Mfr. Part No.M24SR16-YMN6T/2
PHP75.60
Each (In a Pack of 5)
units
16kbit Serial-I2C SOIC Surface Mount 8 - 2.7 V 5.5 V - - 5 x 4 x 1.5mm - 200yr +85 °C
RS Stock No. 197-5322
Mfr. Part No.AT24C256C-SSHL-T
BrandMicrochip
PHP40.497
Each (On a Reel of 4000)
units
256kbit Serial-2 Wire, Serial-I2C SOIC-8 Surface Mount 8 - - - - - - - - -
RS Stock No. 185-0618
Mfr. Part No.BR25G128NUX-3TR
BrandROHM
PHP40.32
Each (In a Pack of 10)
units
128kbit SPI VSON008X2030 Surface Mount 8 16K x 8 bit 1.6 V 5.5 V 1.6 → 5.5V 8bit 2 x 3 x 0.6mm - 100yr +85 °C
RS Stock No. 177-1694
Mfr. Part No.AT24CS64-SSHM-B
BrandMicrochip
PHP21.383
Each (In a Pack of 25)
units
64kbit Serial-2 Wire JEDEC SOIC Surface Mount 8 8K x 8 bit 1.7 V 5.5 V - 8bit 5.05 x 3.99 x 1.5mm - 100yr +85 °C
RS Stock No. 197-5414
Mfr. Part No.AT24C02D-SSHM-T
BrandMicrochip
PHP9.354
Each (In a Pack of 50)
units
2kbit Serial-I2C SOIC Surface Mount 8 - - - - - - - - -
RS Stock No. 823-1189
Mfr. Part No.24AA128T-I/MNY
BrandMicrochip
PHP34.095
Each (In a Pack of 10)
units
128kbit Serial-I2C TDFN Surface Mount 8 16K x 8 bit 1.7 V 5.5 V 1.7 → 5.5V 8bit 3 x 2 x 0.75mm - >200yr +85 °C
RS Stock No. 178-4069
Mfr. Part No.24LC32A-E/SN
BrandMicrochip
PHP22.541
Each (In a Tube of 100)
units
32kbit Serial-I2C SOIC Surface Mount 8 4k x 8 bit 2.5 V 5.5 V 2.5 → 5.5V 8bit 4.9 x 3.9 x 1.5mm - >200yr +125 °C
RS Stock No. 803-2099
Mfr. Part No.25AA02UIDT-I/OT
BrandMicrochip
PHP20.528
Each (In a Pack of 20)
units
2kbit Serial-SPI SOT-23 Surface Mount 6 256 x 8 bit 1.8 V 5.5 V - 8bit 3.1 x 1.8 x 1.3mm - 200yr +85 °C
RS Stock No. 823-3315
Mfr. Part No.24LC515-I/P
BrandMicrochip
PHP167.055
Each (In a Pack of 2)
units
512kB Serial-2 Wire, Serial-I2C PDIP Through Hole 8 64K x 8 bit 2.5 V 5.5 V - 8bit 0.4 x 0.28 x 0.195in - 200yr +85 °C
RS Stock No. 197-5842
Mfr. Part No.AT25320B-SSHL-T
BrandMicrochip
PHP21.538
Each (On a Reel of 4000)
units
32kbit Serial-SPI SOIC-8 Surface Mount 8 - - - - - - - - -