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. 808-0199
Mfr. Part No.CAT24C256WI-GT3
TWD10.20
Each (In a Pack of 50)
units
256kbit Serial-I2C SOIC Surface Mount 8 32K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 162-8879
Mfr. Part No.LE24512AQF-AH
TWD15.00
Each (On a Reel of 2000)
units
512kbit Serial-I2C VSON Surface Mount 8 64K x 8 bit 1.7 V 3.6 V - 8bit 2 x 3 x 0.75mm - 20yr +85 °C
RS Stock No. 781-4907
Mfr. Part No.CAT25256YI-GT3
TWD22.00
Each (In a Pack of 5)
units
256kbit Serial-SPI TSSOP Surface Mount 8 32K x 8 bit 1.8 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 186-9028
Mfr. Part No.CAT25256YI-G
TWD28.50
Each (In a Tube of 100)
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. 103-5095
Mfr. Part No.CAT24C512WI-GT3
TWD12.00
Each (On a Reel of 3000)
units
512kB Serial-I2C SOIC Surface Mount 8 64K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 755-9843
Mfr. Part No.CAT24C512WI-GT3
TWD19.00
Each
units
512kB Serial-I2C SOIC Surface Mount 8 64K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 163-0868
Mfr. Part No.CAT24AA16TDI-GT3
TWD7.50
Each (On a Reel of 3000)
units
16kbit Serial-I2C TSOT-23 Surface Mount 5 2K x 8 bit 1.7 V 5.5 V - 8bit 2.9 x 1.6 x 0.9mm - 100yr +85 °C
RS Stock No. 805-1302
Mfr. Part No.LE24512AQF-AH
TWD20.30
Each (In a Pack of 10)
units
512kbit Serial-I2C VSON Surface Mount 8 64K x 8 bit 1.7 V 3.6 V - 8bit 2 x 3 x 0.75mm - 20yr +85 °C
RS Stock No. 781-4705
Mfr. Part No.CAT24AA16TDI-GT3
TWD10.80
Each (In a Pack of 10)
units
16kbit Serial-I2C TSOT-23 Surface Mount 5 2K x 8 bit 1.7 V 5.5 V - 8bit 2.9 x 1.6 x 0.9mm - 100yr +85 °C
RS Stock No. 124-9968
Mfr. Part No.CAT25256YI-GT3
TWD14.60
Each (On a Reel of 3000)
units
256kbit Serial-SPI TSSOP Surface Mount 8 32K x 8 bit 1.8 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 163-2375
Mfr. Part No.CAT24C64WI-GT3
TWD5.50
Each (On a Reel of 3000)
units
64kbit Serial-I2C SOIC Surface Mount 8 8K x 8 bit 1.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 773-7655
Mfr. Part No.CAT24C64WI-GT3
TWD5.90
Each (In a Pack of 10)
units
64kbit Serial-I2C SOIC Surface Mount 8 8K x 8 bit 1.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 186-9820
Mfr. Part No.CAT25256YI-G
TWD32.20
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. 781-4786
Mfr. Part No.CAT24C16WI-GT3JN
TWD14.50
Each (On a Tape of 20)
units
16kbit Serial-I2C SOIC Surface Mount 8 2K x 8 bit 1.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 186-9031
Mfr. Part No.CAT93C86VI-GT3
TWD6.10
Each (On a Reel of 3000)
units
16kbit Serial SOIC Surface Mount 8 2k x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 163-0892
Mfr. Part No.CAT25160YI-GT3
TWD5.00
Each (On a Reel of 3000)
units
16kbit Serial-SPI TSSOP Surface Mount 8 2048 x 8 bit 1.8 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 122-0155
Mfr. Part No.CAT24C208WI-GT3
TWD26.20
Each (On a Reel of 3000)
units
8kbit Serial-I2C SOIC Surface Mount 8 1K x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 163-2379
Mfr. Part No.CAV24C04WE-GT3
TWD8.10
Each (On a Reel of 3000)
units
4kB Serial-I2C SOIC Surface Mount 8 512 x 8 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +125 °C
RS Stock No. 185-9228
Mfr. Part No.NV25640DWHFT3G
TWD43.30
Each (In a Pack of 6)
units
64kbit SPI SOIC Surface Mount 8 8k x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm AEC-Q100 200yr +150 °C
RS Stock No. 781-4916
Mfr. Part No.CAT25640YI-GT3
TWD11.70
Each (In a Pack of 10)
units
64kbit Serial-SPI TSSOP Surface Mount 8 8K x 8 bit 1.8 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C