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. 667-8198
Mfr. Part No.24FC256-I/ST
BrandMicrochip
MYR4.39
Each (In a Pack of 2)
units
256kbit Serial-I2C TSSOP Surface Mount 8 32K x 8 bit 1.7 V 5.5 V 1.7 → 5.5V - 3 x 4.4 x 1mm - 200yr +85 °C
RS Stock No. 880-5333
Mfr. Part No.M24M02-DRMN6TP
MYR11.12
Each (In a Pack of 5)
units
2Mbit Serial-I2C SOIC Surface Mount 8 256K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.25mm - 200yr +85 °C
RS Stock No. 165-5307
Mfr. Part No.M24M02-DRMN6TP
MYR8.012
Each (On a Reel of 2500)
units
2Mbit Serial-I2C SOIC Surface Mount 8 256K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.25mm - 200yr +85 °C
RS Stock No. 178-4006
Mfr. Part No.24AA02E48-I/SN
BrandMicrochip
MYR1.197
Each (In a Tube of 100)
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. 829-4657
Mfr. Part No.M24SR02-YMN6T/2
MYR3.98
Each (In a Pack of 5)
units
2kbit Serial-I2C SOIC Surface Mount 8 256 x 8 bit 2.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 200yr +85 °C
RS Stock No. 168-8683
Mfr. Part No.M24SR02-YMN6T/2
MYR1.97
Each (On a Reel of 2500)
units
2kbit Serial-I2C SOIC Surface Mount 8 256 x 8 bit 2.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 200yr +85 °C
RS Stock No. 667-8141
Mfr. Part No.24AA02E48-I/SN
BrandMicrochip
MYR1.248
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. 178-4915
Mfr. Part No.25LC1024-I/P
BrandMicrochip
MYR16.064
Each (In a Tube of 50)
units
1Mbit Serial-SPI PDIP Through Hole 8 128 x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 9.27 x 6.35 x 3.3mm - 200yr +85 °C
RS Stock No. 454-056
Mfr. Part No.25LC1024-I/P
BrandMicrochip
MYR17.70
Each
units
1Mbit Serial-SPI PDIP Through Hole 8 128 x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 9.27 x 6.35 x 3.3mm - 200yr +85 °C
RS Stock No. 823-1252
Mfr. Part No.24LC32AT-I/SN
BrandMicrochip
MYR1.712
Each (In a Pack of 20)
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 +85 °C
RS Stock No. 178-5311
Mfr. Part No.24AA02E64T-I/OT
BrandMicrochip
MYR1.062
Each (On a Reel of 3000)
units
2kbit Serial-2 Wire SOT-23 Surface Mount 5 128 x 8 bit 1.7 V 5.5 V - 8bit 3.1 x 1.8 x 1.3mm - 200yr +85 °C
RS Stock No. 912-6697
Mfr. Part No.24LC32A-I/SN
BrandMicrochip
MYR1.712
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 - 4.9 x 3.9 x 1.25mm - 200yr +85 °C
RS Stock No. 803-2103
Mfr. Part No.24AA02E64T-I/OT
BrandMicrochip
MYR1.05
Each (On a Tape of 50)
units
2kbit Serial-2 Wire SOT-23 Surface Mount 5 128 x 8 bit 1.7 V 5.5 V - 8bit 3.1 x 1.8 x 1.3mm - 200yr +85 °C
RS Stock No. 127-6572
Mfr. Part No.AT28C64B-15PU
BrandMicrochip
MYR29.405
Each (In a Pack of 2)
units
64kbit Parallel PDIP Through Hole 28 8K x 8 bit 4.5 V 5.5 V - 8bit 37.33 x 13.97 x 4.44mm - 10yr +85 °C
RS Stock No. 687-9120
Mfr. Part No.24FC1025-I/P
BrandMicrochip
MYR16.59
Each
units
1Mbit Serial-I2C PDIP Through Hole 8 128 x 8 bit 1.7 V 5.5 V 1.8 → 5.5V 8bit 9.4 x 6.35 x 3.3mm - 200yr +85 °C
RS Stock No. 454-381
Mfr. Part No.24LC32A-I/SN
BrandMicrochip
MYR1.695
Each (In a Pack of 10)
units
32kbit Serial-I2C SOIC Surface Mount 8 4k x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 4.9 x 3.9 x 1.25mm - 200yr +85 °C
RS Stock No. 912-3026
Mfr. Part No.24FC1025-I/P
BrandMicrochip
MYR15.798
Each (In a Tube of 60)
units
1Mbit Serial-I2C PDIP Through Hole 8 128 x 8 bit 1.7 V 5.5 V 1.8 → 5.5V - 9.4 x 6.35 x 3.3mm - 200yr +85 °C
RS Stock No. 170-4331
Mfr. Part No.24LC32AT-I/SN
BrandMicrochip
MYR1.712
Each (On a Reel of 3300)
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 +85 °C
RS Stock No. 687-9073
Mfr. Part No.24LC256-I/SM
BrandMicrochip
MYR4.48
Each
units
256kbit Serial-I2C SOIJ Surface Mount 8 32K x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 5.33 x 5.38 x 1.98mm - 200yr +85 °C
RS Stock No. 170-4338
Mfr. Part No.24LC256T-I/SM
BrandMicrochip
MYR4.158
Each (On a Reel of 2100)
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 +85 °C