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. 824-6336
Mfr. Part No.24LC16BH-I/P
BrandMicrochip
MYR1.617
Each (In a Pack of 20)
units
16kbit Serial-2 Wire PDIP Through Hole 8 256 x 8 bit 2.5 V 5.5 V - 8bit 0.4 x 0.28 x 0.195in - 200yr +85 °C
RS Stock No. 608-5625
Mfr. Part No.M95640-WMN6P
MYR1.53
Each
units
64kbit Serial-SPI SOIC Surface Mount 8 8K 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. 889-5480
Mfr. Part No.24LC512-I/SN
BrandMicrochip
MYR6.785
Each (In a Tube of 100)
units
512kbit Serial-I2C SOIC Surface Mount 8 64K x 8 bit 2.5 V 5.5 V 3.3 V, 5 V 8bit 4.9 x 3.9 x 1.75mm - >200yr +85 °C
RS Stock No. 686-2419
Mfr. Part No.M24C04-WMN6TP
MYR0.434
Each (In a Pack of 25)
units
4kbit Serial-I2C 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. 922-1186
Mfr. Part No.AT25128B-SSHL-B
BrandAtmel
MYR3.153
Each (In a Tube of 100)
units
128kbit Serial-SPI SOIC Surface Mount 8 16384 x 8 bit 1.8 V 5.5 V - 8bit 5.05 x 3.99 x 1.5mm - >100yr +85 °C
RS Stock No. 540-4817
Mfr. Part No.DS2430AP+
MYR10.67
Each
units
256bit Serial-1 Wire TSOC Surface Mount 6 1 Page x 256 bit 2.8 V 5.25 V - - 3.94 x 3.81 x 1.49mm - 40yr +85 °C
RS Stock No. 178-5292
Mfr. Part No.24AA02T-I/OT
BrandMicrochip
MYR0.996
Each (On a Reel of 3000)
units
2kbit Serial-I2C SOT-23 Surface Mount 5 256 x 8 bit 1.7 V 5.5 V 1.7 → 5.5V - 3.1 x 1.8 x 1.3mm - 200yr +85 °C
RS Stock No. 168-0501
Mfr. Part No.BR24L08FVT-WE2
BrandROHM
MYR2.467
Each (On a Reel of 3000)
units
8kbit Serial-I2C TSSOP Surface Mount 8 1K x 8 bit 1.8 V 5.5 V - 8bit 4.4 x 3.35 x 1mm - 40yr +85 °C
RS Stock No. 186-9820
Mfr. Part No.CAT25256YI-G
MYR5.528
Each (In a Pack of 10)
units
256kbit - TSSOP Surface Mount 8 32k x 8 bit 1.8 V 5.5 V - 8bit 3.1 x 4.5 x 1.05mm AEC-Q100 100yr +85 °C
RS Stock No. 823-3321
Mfr. Part No.25AA160C-I/MS
BrandMicrochip
MYR2.594
Each (In a Pack of 10)
units
16kB Serial-SPI MSOP Surface Mount 8 2048 x 8 bit 1.8 V 5.5 V - 8bit 3 x 3 x 0.95mm - 200yr +85 °C
RS Stock No. 127-2790
Mfr. Part No.AT24C64BN-10SU-2.7
BrandMicrochip
MYR3.154
Each (In a Pack of 10)
units
64kbit Serial-2 Wire SOIC Surface Mount 8 8K x 8 bit 2.7 V 5.5 V - 8bit 5.05 x 3.99 x 1.5mm - 100yr +85 °C
RS Stock No. 127-2678
Mfr. Part No.AT17LV256-10NU
BrandMicrochip
MYR39.83
Each
units
256kbit Serial-2 Wire SOIC Surface Mount 8 256K x 1 bit 3 V 5.5 V - 1bit 5.05 x 3.99 x 1.5mm - 90yr +85 °C
RS Stock No. 177-1424
Mfr. Part No.24LC128-I/SNG
BrandMicrochip
MYR2.609
Each (In a Tube of 100)
units
128kbit Serial-I2C SOIC Surface Mount 8 16K x 8 bit 2.5 V 5.5 V - 8bit 4.9 x 3.9 x 1.5mm - 200yr +85 °C
RS Stock No. 667-8261
Mfr. Part No.25AA128-I/ST
BrandMicrochip
MYR4.59
Each (In a Pack of 5)
units
128kbit Serial-SPI TSSOP Surface Mount 8 16K x 8 bit 1.8 V 5.5 V - - 3 x 4.4 x 1mm - 200yr +85 °C
RS Stock No. 178-5297
Mfr. Part No.24LC01BT-I/OT
BrandMicrochip
MYR0.93
Each (On a Reel of 3000)
units
1kbit Serial-I2C SOT-23 Surface Mount 5 128 x 8 bit 2.5 V 5.5 V 2.5 → 5.5V - 3.1 x 1.8 x 1.3mm - 200yr +85 °C
RS Stock No. 197-5332
Mfr. Part No.AT24C64D-SSHM-T
BrandMicrochip
MYR1.527
Each (On a Reel of 4000)
units
64kbit Serial-2 Wire, Serial-I2C SOIC-8 Surface Mount 8 - - - - - - - - -
RS Stock No. 127-8186
Mfr. Part No.AT93C46D-TH-B
BrandMicrochip
MYR1.017
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. 463-7088
Mfr. Part No.BR24L04F-WE2
BrandROHM
MYR2.428
Each (In a Pack of 5)
units
4kbit Serial-I2C SOP Surface Mount 8 512 x 8 bit 1.8 V 5.5 V 1.8 → 5.5V - 5 x 4.4 x 1.5mm - 40yr +85 °C
RS Stock No. 185-0680
Mfr. Part No.BR24T01NUX-WTR
BrandROHM
MYR1.87
Each (In a Pack of 25)
units
1kbit Serial-2 Wire, Serial-I2C VSON008X2030 Surface Mount 8 128 x 8 bit 1.6 V 5.5 V 1.6 → 5.5V 8bit 2 x 3 x 0.6mm - 40yr +85 °C
RS Stock No. 823-3309
Mfr. Part No.24LC32AF-E/SN
BrandMicrochip
MYR1.846
Each (In a Pack of 20)
units
32kB Serial-2 Wire, Serial-I2C SOIC Surface Mount 8 4k x 8 bit 2.5 V 5.5 V - 8bit 4.9 x 3.9 x 1.5mm - 200yr +125 °C