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. 163-0882
Mfr. Part No.CAT24C32WI-GT3
MYR0.563
Each (On a Reel of 3000)
units
32kbit Serial-I2C SOIC Surface Mount 8 4k x 8 bit 1.7 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 185-9228
Mfr. Part No.NV25640DWHFT3G
MYR6.253
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. 773-7658
Mfr. Part No.CAT24C128WI-GT3
MYR1.17
Each (In a Pack of 10)
units
128kbit Serial-I2C SOIC Surface Mount 8 16K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 805-1302
Mfr. Part No.LE24512AQF-AH
MYR3.32
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. 145-2853
Mfr. Part No.CAT93C66XI
MYR1.546
Each (In a Tube of 94)
units
4kbit Serial-Microwire SOIC Surface Mount 8 512 x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 163-2372
Mfr. Part No.CAT24C16WI-GT3
MYR0.503
Each (On a Reel of 3000)
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. 121-6322
Mfr. Part No.CAT25128VI-GT3
MYR1.447
Each (On a Reel of 3000)
units
128kbit Serial-SPI SOIC Surface Mount 8 16K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 800-9819
Mfr. Part No.CAT24C16HU4I-GT3
MYR1.61
Each (On a Tape of 25)
units
16kbit Serial-I2C UDFN Surface Mount 8 2K x 8 bit 1.7 V 5.5 V - 8 3.05 x 2.05 x 0.5mm - 100yr +125 °C
RS Stock No. 163-0883
Mfr. Part No.CAT24C32YI-GT3
MYR0.644
Each (On a Reel of 3000)
units
32kbit Serial-I2C TSSOP Surface Mount 8 4k x 8 bit 1.7 V 5.5 V - 8bit 4.5 x 3.1 x 1.05mm - 100yr +85 °C
RS Stock No. 755-9880
Mfr. Part No.CAV24C08WE-GT3
MYR2.048
Each (In a Pack of 5)
units
8kB Serial-I2C SOIC Surface Mount 8 1K x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +125 °C
RS Stock No. 781-4881
Mfr. Part No.CAT25160YI-GT3
MYR1.42
Each (In a Pack of 10)
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. 186-9022
Mfr. Part No.CAT24C04WI-GT3
MYR0.454
Each (On a Reel of 3000)
units
4kbit - SOIC Surface Mount 8 512 x 8 bit 1.7 V 5.5 V - 8bit 5 x 4 x 1.5mm AEC-Q100 100yr +85 °C
RS Stock No. 755-9855
Mfr. Part No.CAT24C512YI-GT3
MYR2.98
Each
units
512kB Serial-I2C TSSOP Surface Mount 8 64K x 8 bit 1.8 V 5.5 V - 8bit 3.1 x 4.5 x 1.05mm - 100yr +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. 781-5039
Mfr. Part No.CAV25640VE-GT3
MYR4.54
Each (In a Pack of 5)
units
64kbit Serial-SPI SOIC Surface Mount 8 8K x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +125 °C
RS Stock No. 162-8879
Mfr. Part No.LE24512AQF-AH
MYR2.317
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. 185-9204
Mfr. Part No.NV25160DWHFT3G
MYR5.059
Each (In a Pack of 7)
units
16kbit SPI SOIC Surface Mount 8 2k x 8 bit 2.5 V 5.5 V - 8bit 5 x 4 x 1.5mm AEC-Q100 200yr +150 °C
RS Stock No. 781-4869
Mfr. Part No.CAT25128VI-GT3
MYR2.723
Each (In a Pack of 10)
units
128kbit Serial-SPI SOIC Surface Mount 8 16K x 8 bit 1.8 V 5.5 V - 8bit 5 x 4 x 1.5mm - 100yr +85 °C
RS Stock No. 163-2380
Mfr. Part No.CAV24C04YE-GT3
MYR1.015
Each (On a Reel of 3000)
units
4kB Serial-I2C TSSOP Surface Mount 8 512 x 8 2.5 V 5.5 V - 8bit 3.1 x 4.5 x 1.05mm - 100yr +125 °C
RS Stock No. 781-4831
Mfr. Part No.CAT24M01HU5I-GT3
MYR9.12
Each (In a Pack of 10)
units
1Mbit Serial-I2C UDFN Surface Mount 8 128 x 8 bit 1.8 V 5.5 V - 8bit 3 x 2 x 0.5mm - 100yr +85 °C