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256 kbit Memory ICs

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Memory Size = 256 kbit

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Mounting Style	Package/Case	Memory Size	Interface Type
EPROM 256k (32k x 8) OTP Atmel EPROM AT27BV256-70JU Microchip Technology 1: £2.87 54In Stock	Mfr. Part No. AT27BV256-70JU Mouser Part No 556-AT27BV25670JU	Microchip Technology	EPROM 256k (32k x 8) OTP Atmel EPROM	Datasheet	54In Stock	£2.87 £2.76 £2.69 £2.66	Min.: 1 Mult.: 1	EPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EPROM 256Kb (32Kx8) OTP 5V 45ns AT27C256R-45PU Microchip Technology 1: £2.23 33In Stock 3,332On Order	Mfr. Part No. AT27C256R-45PU Mouser Part No 556-AT27C256R-45PU	Microchip Technology	EPROM 256Kb (32Kx8) OTP 5V 45ns	Datasheet	33In Stock 3,332On Order On Order Ship Dates Mfr. No: AT27C256R-45PU Stock: 33 Can Dispatch Immediately On Order: 1,218 Expected 27/10/2026 2,114 Expected 09/11/2026 Factory Lead Time: 8 Weeks	£2.23 £2.14 £2.05	Min.: 1 Mult.: 1	EPROM	Through Hole	PDIP-28	256 kbit	Parallel
EEPROM 256K 2.7V - 3.6V SDP- 200NS IND TEMP AT28BV256-20JU Microchip Technology 1: £9.52 94In Stock	Mfr. Part No. AT28BV256-20JU Mouser Part No 556-AT28BV25620JU	Microchip Technology	EEPROM 256K 2.7V - 3.6V SDP- 200NS IND TEMP	Datasheet	94In Stock	£9.52 £9.18 £8.81	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K 2.7V - 3.6V SDP- 200NS IND TEMP AT28BV256-20SU Microchip Technology 1: £9.25 59In Stock	Mfr. Part No. AT28BV256-20SU Mouser Part No 556-AT28BV25620SU	Microchip Technology	EEPROM 256K 2.7V - 3.6V SDP- 200NS IND TEMP	Datasheet	59In Stock	£9.25 £9.05 £8.87 £8.83 View £8.80 Quote	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIC-28	256 kbit	Parallel
EEPROM 256K 32K x 8 150 ns 4.5V-5.5V AT28C256-15JU Microchip Technology 1: £9.11 71In Stock	Mfr. Part No. AT28C256-15JU Mouser Part No 556-AT28C25615JU	Microchip Technology	EEPROM 256K 32K x 8 150 ns 4.5V-5.5V Learn More about Microchip Technology microchip at28c256 memory	Datasheet	71In Stock	£9.11 £8.76 £8.43	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K HI-ENDURANCE SDP- 150NS IND TEMP AT28C256E-15JU Microchip Technology 1: £9.14 15In Stock 96Expected 10/11/2026	Mfr. Part No. AT28C256E-15JU Mouser Part No 556-AT28C256E15JU	Microchip Technology	EEPROM 256K HI-ENDURANCE SDP- 150NS IND TEMP Learn More about Microchip Technology microchip at28c256 memory	Datasheet	15In Stock 96Expected 10/11/2026	£9.14 £8.96 £8.95 £8.66	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K HI-ENDURANCE SDP- 150NS IND TEMP AT28C256E-15SU Microchip Technology 1: £9.15 67In Stock	Mfr. Part No. AT28C256E-15SU Mouser Part No 556-AT28C256E15SU	Microchip Technology	EEPROM 256K HI-ENDURANCE SDP- 150NS IND TEMP Learn More about Microchip Technology microchip at28c256 memory	Datasheet	67In Stock	£9.15 £8.97 £8.72 £8.68 View £8.67 £8.66	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIC-28	256 kbit	Parallel
EEPROM 256K FAST PROG SDP- 150NS IND TEMP AT28C256F-15JU Microchip Technology 1: £9.73 52In Stock	Mfr. Part No. AT28C256F-15JU Mouser Part No 556-AT28C256F15JU	Microchip Technology	EEPROM 256K FAST PROG SDP- 150NS IND TEMP Learn More about Microchip Technology microchip at28c256 memory	Datasheet	52In Stock	£9.73 £9.38 £9.00	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K 5V SDP - 120NS IND TEMP AT28HC256-12JU Microchip Technology 1: £9.73 96In Stock	Mfr. Part No. AT28HC256-12JU Mouser Part No 556-AT28HC25612JU	Microchip Technology	EEPROM 256K 5V SDP - 120NS IND TEMP	Datasheet	96In Stock	£9.73 £9.38 £9.00	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K 32K x 8 120 ns 4.5V-5.5V AT28HC256-12SU Microchip Technology 1: £9.95 102In Stock	Mfr. Part No. AT28HC256-12SU Mouser Part No 556-AT28HC25612SU	Microchip Technology	EEPROM 256K 32K x 8 120 ns 4.5V-5.5V	Datasheet	102In Stock	£9.95 £9.59 £9.22	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIC-28	256 kbit	Parallel
EEPROM 256K 5V SDP - 90NS IND TEMP AT28HC256-90JU Microchip Technology 1: £10.99 44In Stock 96On Order	Mfr. Part No. AT28HC256-90JU Mouser Part No 556-AT28HC25690JU	Microchip Technology	EEPROM 256K 5V SDP - 90NS IND TEMP	Datasheet	44In Stock 96On Order	£10.99 £10.58 £10.16	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM Parallel EEPROM 5V-120NS, 883c, GR AT28HC256E-12JU Microchip Technology 1: £9.73 26In Stock 64Expected 04/11/2026	Mfr. Part No. AT28HC256E-12JU Mouser Part No 556-AT28HC256E-12JU	Microchip Technology	EEPROM Parallel EEPROM 5V-120NS, 883c, GR	Datasheet	26In Stock 64Expected 04/11/2026	£9.73 £9.36 £9.08 £9.00	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K 70ns AT28HC256E-70JU Microchip Technology 1: £10.64 100In Stock	Mfr. Part No. AT28HC256E-70JU Mouser Part No 556-AT28HC256E-70JU	Microchip Technology	EEPROM 256K 70ns	Datasheet	100In Stock	£10.64 £10.43 £10.42 £10.15 View £10.11 £10.06 Quote	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
EEPROM 256K HI-ENDURANCE SDP - 90NS IND TEMP AT28HC256E-90JU Microchip Technology 1: £9.18 51In Stock	Mfr. Part No. AT28HC256E-90JU Mouser Part No 556-AT28HC256E90JU	Microchip Technology	EEPROM 256K HI-ENDURANCE SDP - 90NS IND TEMP	Datasheet	51In Stock	£9.18 £8.95 £8.83 £8.56 £8.49	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	PLCC-32	256 kbit	Parallel
SRAM 256K 32K X 8 2.7V SERIAL SRAM EXT 23K256-E/ST Microchip Technology 1: £1.13 225In Stock	Mfr. Part No. 23K256-E/ST Mouser Part No 579-23K256-E/ST	Microchip Technology	SRAM 256K 32K X 8 2.7V SERIAL SRAM EXT Learn More about Microchip Technology microchip sram	Datasheet	225In Stock	£1.13 £1.10 £1.04	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSSOP-8	256 kbit	SPI
EEPROM 256k 32KX8 1.8V SER EE IND 25AA256-I/SM Microchip Technology 1: £1.21 52In Stock 360Expected 02/11/2026	Mfr. Part No. 25AA256-I/SM Mouser Part No 579-25AA256-I/SM	Microchip Technology	EEPROM 256k 32KX8 1.8V SER EE IND	Datasheet	52In Stock 360Expected 02/11/2026	£1.21 £1.20 £1.17 £1.15 £1.13	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIJ-8	256 kbit	SPI
EEPROM 32kx8 - 1.8V 25AA256-I/ST Microchip Technology 1: £1.24 215In Stock 300Expected 05/11/2026	Mfr. Part No. 25AA256-I/ST Mouser Part No 579-25AA256-I/ST	Microchip Technology	EEPROM 32kx8 - 1.8V	Datasheet	215In Stock 300Expected 05/11/2026	£1.24 £1.20 £1.14	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	TSSOP-8	256 kbit	SPI
EEPROM 32kx8 - 1.8V 25AA256T-I/MF Microchip Technology 1: £1.58 1,318In Stock	Mfr. Part No. 25AA256T-I/MF Mouser Part No 579-25AA256T-I/MF	Microchip Technology	EEPROM 32kx8 - 1.8V	Datasheet	1,318In Stock	Cut Tape £1.58 Reel £1.34 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	EEPROM	SMD/SMT	DFN-8	256 kbit	SPI
EEPROM 32kx8 - 1.8V 25AA256T-I/ST Microchip Technology 1: £1.35 389In Stock 5,000Expected 26/10/2026	Mfr. Part No. 25AA256T-I/ST Mouser Part No 579-25AA256T-I/ST	Microchip Technology	EEPROM 32kx8 - 1.8V	Datasheet	389In Stock 5,000Expected 26/10/2026	Cut Tape £1.35 Reel £1.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	EEPROM	SMD/SMT	TSSOP-8	256 kbit	SPI
EEPROM 32kx8 - 2.5V 25LC256-E/P Microchip Technology 1: £1.39 36In Stock 240Expected 06/11/2026	Mfr. Part No. 25LC256-E/P Mouser Part No 579-25LC256-E/P	Microchip Technology	EEPROM 32kx8 - 2.5V	Datasheet	36In Stock 240Expected 06/11/2026	£1.39 £1.34 £1.30	Min.: 1 Mult.: 1	EEPROM	Through Hole	PDIP-8	256 kbit	SPI
EEPROM 32Kx8 2.5V 25LC256-E/SM Microchip Technology 1: £1.29 341In Stock	Mfr. Part No. 25LC256-E/SM Mouser Part No 579-25LC256-E/SM	Microchip Technology	EEPROM 32Kx8 2.5V	Datasheet	341In Stock	£1.29 £1.24 £1.20	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIJ-8	256 kbit	SPI
EEPROM 32kx8 - 2.5V 25LC256-E/SN Microchip Technology 1: £1.27 368In Stock 600Expected 06/11/2026	Mfr. Part No. 25LC256-E/SN Mouser Part No 579-25LC256-E/SN	Microchip Technology	EEPROM 32kx8 - 2.5V	Datasheet	368In Stock 600Expected 06/11/2026	£1.27 £1.21 £1.20	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIC-8	256 kbit	SPI
EEPROM 256K, 32K X 8, 2.5V SER EE 150C 25LC256-H/SN Microchip Technology 1: £1.32 346In Stock 1,900On Order	Mfr. Part No. 25LC256-H/SN Mouser Part No 579-25LC256-H/SN	Microchip Technology	EEPROM 256K, 32K X 8, 2.5V SER EE 150C This product may require additional documentation to export from the United States.	Datasheet	346In Stock 1,900On Order	£1.32 £1.29 £1.22	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	SOIC-8	256 kbit	SPI
EEPROM 32kx8 - 2.5V 25LC256-I/MF Microchip Technology 1: £1.46 437In Stock	Mfr. Part No. 25LC256-I/MF Mouser Part No 579-25LC256-I/MF	Microchip Technology	EEPROM 32kx8 - 2.5V	Datasheet	437In Stock	£1.46 £1.41 £1.34	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	DFN-8	256 kbit	SPI
EEPROM 32kx8 - 2.5V 25LC256-I/P Microchip Technology 1: £1.32 64In Stock 240Expected 10/11/2026	Mfr. Part No. 25LC256-I/P Mouser Part No 579-25LC256-I/P	Microchip Technology	EEPROM 32kx8 - 2.5V	Datasheet	64In Stock 240Expected 10/11/2026	£1.32 £1.28 £1.21	Min.: 1 Mult.: 1	EEPROM	Through Hole	PDIP-8	256 kbit	SPI