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4 Mbit Memory ICs

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Memory Size = 4 Mbit

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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
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual SPI NOR flash AT25DF041B-MAHN-T Renesas / Dialog 1: £1.55 10,000Expected 06/05/2027	Mfr. Part No. AT25DF041B-MAHN-T Mouser Part No 988-25DF041B-MAHNT	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual SPI NOR flash Learn More about Renesas / Dialog renesas dialog serialflash	Datasheet	10,000Expected 06/05/2027	Cut Tape £1.55 £1.45 £1.41 £1.37 View Reel £1.16 £1.34 £1.31 £1.27 £1.24 £1.16 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	NOR Flash	SMD/SMT		4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single, Dual, Quad SPI NOR flash AT25FF041A-SSHN-T Renesas / Dialog 1: £0.526 7,526Expected 13/11/2026	Mfr. Part No. AT25FF041A-SSHN-T Mouser Part No 988-AT25FF041-SSHN-T	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single, Dual, Quad SPI NOR flash Learn More about Renesas / Dialog renesas at25ff041a memory	Datasheet	7,526Expected 13/11/2026	Cut Tape £0.526 £0.491 £0.478 £0.469 View Reel £0.408 £0.458 £0.445 £0.435 £0.425 £0.408	Min.: 1 Mult.: 1 : 4,000	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement) AT25PE40-SHN-T Renesas / Dialog 1: £1.48 5,864Expected 06/01/2027	Mfr. Part No. AT25PE40-SHN-T Mouser Part No 988-AT25PE40-SHN-T	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement) Learn More about Renesas / Dialog renesas dialog at25pe40 flash memory	Datasheet	5,864Expected 06/01/2027	Cut Tape £1.48 £1.39 £1.35 £1.32 View Reel £1.12 £1.29 £1.25 £1.21 £1.20 £1.12 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	NOR Flash	SMD/SMT	SOIC-Wide-8	4 Mbit	SPI
NOR Flash 4 Mbit, 3.0V (2.5V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual, Quad SPI NOR flash AT25SF041B-MAHD-T Renesas / Dialog 1: £0.684 16,905On Order	Mfr. Part No. AT25SF041B-MAHD-T Mouser Part No 988-AT25SF041BMAHDT	Renesas / Dialog	NOR Flash 4 Mbit, 3.0V (2.5V to 3.6V), -40C to 85C, DFN 2x3 (Tape & Reel), Single, Dual, Quad SPI NOR flash Learn More about Renesas / Dialog renesas at25sf041b memory	Datasheet	16,905On Order On Order Ship Dates Mfr. No: AT25SF041B-MAHD-T Stock: 0 On Order: 6,905 Expected 25/02/2027 10,000 Expected 03/03/2028 Factory Lead Time: 26 Weeks	Cut Tape £0.684 £0.641 £0.623 £0.609 View Reel £0.517 £0.597 £0.581 £0.517	Min.: 1 Mult.: 1 : 5,000	NOR Flash	SMD/SMT	UDFN-8	4 Mbit	SPI
NOR Flash 1.8V, 4Mbit SPI Flash SST25WF040B-40E/SN Microchip Technology 1: £1.05 600Expected 28/10/2026	Mfr. Part No. SST25WF040B-40E/SN Mouser Part No 579-ST25WF040B40E/SN	Microchip Technology	NOR Flash 1.8V, 4Mbit SPI Flash Learn More about Microchip Technology microchip sst25wf040b 80b spi serial flash memory	Datasheet	600Expected 28/10/2026	£1.05 £1.03 £0.986	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
SRAM 4Mb 512Kx8 20MHz Serial SRAM IT IS62WVS5128FBLL-20NLI-TR ISSI 1: £6.68 6,000On Order	Mfr. Part No. IS62WVS5128FBLL-20NLI-TR Mouser Part No 870-62WS5128FBLL2NIT	ISSI	SRAM 4Mb 512Kx8 20MHz Serial SRAM IT	Datasheet	6,000On Order On Order Ship Dates Mfr. No: IS62WVS5128FBLL-20NLI-TR Stock: 0 On Order: 3,000 Expected 23/11/2026 3,000 Expected 09/12/2026 Factory Lead Time: 26 Weeks	Cut Tape £6.68 £6.21 £6.02 £5.88 £5.74 Reel £5.74 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SRAM	SMD/SMT	SOIC-8	4 Mbit	SDI, SPI, SQI
SRAM 4Mb 512Kx8 45MHz Serial SRAM IT IS62WVS5128GBLL-45NLI ISSI 1: £4.28 8,325On Order	Mfr. Part No. IS62WVS5128GBLL-45NLI Mouser Part No 870-62WS5128GBLL45NI	ISSI	SRAM 4Mb 512Kx8 45MHz Serial SRAM IT Learn More about ISSI asynchronous sram	Datasheet	8,325On Order On Order Ship Dates Mfr. No: IS62WVS5128GBLL-45NLI Stock: 0 On Order: 4,225 Expected 25/01/2027 4,100 TBD Factory Lead Time: 26 Weeks	£4.28 £3.99 £3.87 £3.78 £3.68	Min.: 1 Mult.: 1	SRAM	SMD/SMT	SOIC-8	4 Mbit	SDI, SPI, SQI
NOR Flash 4Mb QSPI, 8-pin SOP 208Mil, RoHS, new die rev IS25LP040E-JBLE ISSI 1: £1.20 21,279On Order	Mfr. Part No. IS25LP040E-JBLE Mouser Part No 870-IS25LP040E-JBLE	ISSI	NOR Flash 4Mb QSPI, 8-pin SOP 208Mil, RoHS, new die rev Learn More about ISSI is25 memory	Datasheet	21,279On Order On Order Ship Dates Mfr. No: IS25LP040E-JBLE Stock: 0 On Order: 2,559 Pending 2,790 Expected 23/11/2026 4,050 Expected 07/10/2027 11,880 Expected 11/10/2027 Factory Lead Time: 52 Weeks	£1.20 £1.02	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash Serial NOR 1.8V 4Mbit x4 I/O SOP-8 150mil MX25U4035FM1I-T Macronix 1: £1.20 760On Order	Mfr. Part No. MX25U4035FM1I-T Mouser Part No 95-25U4035FM1IT	Macronix	NOR Flash Serial NOR 1.8V 4Mbit x4 I/O SOP-8 150mil	Datasheet	760On Order	£1.20 £1.13 £1.10 £1.07 View £1.05 £1.01 £0.986 £0.96	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOP-8	4 Mbit	SPI
MRAM 4Mb 3.3V 512Kx8 SPI MR25H40CDF Everspin Technologies 1: £22.36 4,554On Order	Mfr. Part No. MR25H40CDF Mouser Part No 936-MR25H40CDF	Everspin Technologies	MRAM 4Mb 3.3V 512Kx8 SPI Learn More about Everspin Technologies everspin mr25hxx spi serial mrams	Datasheet	4,554On Order On Order Ship Dates Mfr. No: MR25H40CDF Stock: 0 On Order: 2,274 Expected 09/12/2026 2,280 Expected 13/01/2027 Factory Lead Time: 26 Weeks	£22.36 £20.71 £20.04 £19.55 View £19.07 £19.02 Quote	Min.: 1 Mult.: 1	MRAM	SMD/SMT	DFN-8	4 Mbit	SPI
MRAM 4Mb 3.3V 512Kx8 SPI MR25H40CDFR Everspin Technologies 1: £22.40 7,635On Order	Mfr. Part No. MR25H40CDFR Mouser Part No 936-MR25H40CDFR	Everspin Technologies	MRAM 4Mb 3.3V 512Kx8 SPI Learn More about Everspin Technologies everspin mr25hxx spi serial mrams	Datasheet	7,635On Order On Order Ship Dates Mfr. No: MR25H40CDFR Stock: 0 On Order: 3,635 Expected 09/11/2026 4,000 Expected 06/01/2027 Factory Lead Time: 26 Weeks	Cut Tape £22.40 £20.76 £20.10 £19.61 View Reel £16.54 £19.12 £18.48 £17.65 £17.56 £16.54 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	MRAM	SMD/SMT	DFN-8	4 Mbit	SPI
MRAM 4Mb 3.3V 512Kx8 SPI MR25H40MDF Everspin Technologies 1: £43.32 9,957On Order	Mfr. Part No. MR25H40MDF Mouser Part No 936-MR25H40MDF	Everspin Technologies	MRAM 4Mb 3.3V 512Kx8 SPI	Datasheet	9,957On Order On Order Ship Dates Mfr. No: MR25H40MDF Stock: 0 On Order: 4,257 Expected 20/01/2027 5,700 Expected 24/03/2027 Factory Lead Time: 26 Weeks	£43.32 £40.04 £38.74 £37.78 View £36.83 £36.12 Quote	Min.: 1 Mult.: 1	MRAM	SMD/SMT	DFN-8	4 Mbit	SPI
MRAM 4Mb 3.3V 512Kx8 SPI MRAM MR25H40VDF Everspin Technologies 1: £28.49 4,658On Order	Mfr. Part No. MR25H40VDF Mouser Part No 936-MR25H40VDF	Everspin Technologies	MRAM 4Mb 3.3V 512Kx8 SPI MRAM Learn More about Everspin Technologies everspinmram	Datasheet	4,658On Order On Order Ship Dates Mfr. No: MR25H40VDF Stock: 0 On Order: 668 Expected 30/12/2026 1,710 Expected 13/01/2027 2,280 Expected 31/03/2027 Factory Lead Time: 26 Weeks	£28.49 £26.36 £25.52 £24.89 View £24.27 £23.46 Quote	Min.: 1 Mult.: 1	MRAM	SMD/SMT	DFN-8	4 Mbit	SPI
SRAM 4Mb 512Kx8 55ns Async SRAM IS62WV5128BLL-55TLI ISSI 1: £7.32 312On Order	Mfr. Part No. IS62WV5128BLL-55TLI Mouser Part No 87062WV5128BLL55TLI	ISSI	SRAM 4Mb 512Kx8 55ns Async SRAM Learn More about ISSI ultra low power sram	Datasheet	312On Order	£7.32 £6.80 £6.60 £6.44 £6.19	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-32	4 Mbit	Parallel
SRAM SRAM, 4Mb, 512K x 8, 3.3V, 44pin TSOP II, 10ns, Industrial Temp - Tray AS7C34096A-10TIN Alliance Memory 1: £8.14 243In Stock 405Expected 13/01/2027	Mfr. Part No. AS7C34096A-10TIN Mouser Part No 913-AS7C34096A-10TIN	Alliance Memory	SRAM SRAM, 4Mb, 512K x 8, 3.3V, 44pin TSOP II, 10ns, Industrial Temp - Tray	Datasheet	243In Stock 405Expected 13/01/2027	£8.14 £7.57 £7.33 £7.16 View £6.91 £6.73 £6.56 £6.40	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-II-44	4 Mbit	Parallel
SRAM SRAM, 4Mb, 512K x 8, 3.3V, 44pin TSOP II, 12ns, Industrial Temp - Tray AS7C34096A-12TIN Alliance Memory 1: £10.12 270Expected 09/11/2026	Mfr. Part No. AS7C34096A-12TIN Mouser Part No 913-AS7C34096A-12TIN	Alliance Memory	SRAM SRAM, 4Mb, 512K x 8, 3.3V, 44pin TSOP II, 12ns, Industrial Temp - Tray	Datasheet	270Expected 09/11/2026	£10.12 £9.40 £9.11 £8.69 View £8.47 £8.35 £8.13	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-II-44	4 Mbit	Parallel
SRAM SRAM, 4Mb, 256K x 16, 3.3V, 44pin TSOP II, 10ns, Industrial Temp - Tray AS7C34098A-12TIN Alliance Memory 1: £8.14 270Expected 09/11/2026	Mfr. Part No. AS7C34098A-12TIN Mouser Part No 913-AS7C34098A-12TIN	Alliance Memory	SRAM SRAM, 4Mb, 256K x 16, 3.3V, 44pin TSOP II, 10ns, Industrial Temp - Tray	Datasheet	270Expected 09/11/2026	£8.14 £7.57 £7.33 £7.16 View £6.91 £6.73 £6.56 £6.40	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-II-44	4 Mbit	Parallel
SRAM SRAM, 4Mb, 256K x 16, 3.3V, 44pin TSOP II, 10ns, Commercial Temp - Tray AS7C34098A-15TCN Alliance Memory 1: £10.22 227Expected 13/11/2026	Mfr. Part No. AS7C34098A-15TCN Mouser Part No 913-AS7C34098A-15TCN	Alliance Memory	SRAM SRAM, 4Mb, 256K x 16, 3.3V, 44pin TSOP II, 10ns, Commercial Temp - Tray	Datasheet	227Expected 13/11/2026	£10.22 £9.50 £9.20 £8.77 View £8.56 £8.43 £8.22	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-II-44	4 Mbit	Parallel
SRAM SRAM, 4Mb, 512K x 8, 5V, 36pin SOJ, 20ns, Industrial Temp - Tube AS7C4096A-20JIN Alliance Memory 1: £14.21 188Expected 17/12/2026	Mfr. Part No. AS7C4096A-20JIN Mouser Part No 913-AS7C4096A-20JIN	Alliance Memory	SRAM SRAM, 4Mb, 512K x 8, 5V, 36pin SOJ, 20ns, Industrial Temp - Tube	Datasheet	188Expected 17/12/2026	£14.21 £13.17 £12.75 £12.15 View £10.41 £8.69	Min.: 1 Mult.: 1	SRAM	SMD/SMT	SOJ-36	4 Mbit	Parallel
NOR Flash 2.7V to 3.6V 4Mbit Multi-Purpose Flash Microchip Technology SST39VF040-70-4C-TU SST39VF040-70-4C-TU Microchip Technology 1: £1.74 468On Order New Product	Mfr. Part No. SST39VF040-70-4C-TU Mouser Part No 579-SST39VF040704CTU New Product	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit Multi-Purpose Flash	Datasheet	468On Order	£1.74 £1.68 £1.62	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	TSOP-32	4 Mbit	Parallel
NOR Flash 4Mb QSPI, 8-pin SOP 150Mil, RoHS, new die rev IS25LP040E-JNLE ISSI 1: £0.899 4,389On Order	Mfr. Part No. IS25LP040E-JNLE Mouser Part No 870-IS25LP040E-JNLE	ISSI	NOR Flash 4Mb QSPI, 8-pin SOP 150Mil, RoHS, new die rev Learn More about ISSI is25 memory	Datasheet	4,389On Order On Order Ship Dates Mfr. No: IS25LP040E-JNLE Stock: 0 On Order: 89 Expected 18/11/2026 4,300 Expected 07/10/2027 Factory Lead Time: 52 Weeks	£0.899 £0.841 £0.818 £0.803 £0.78	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
SRAM 4Mb 512Kx8 55ns Async SRAM IS62WV5128BLL-55T2LI ISSI 1: £6.98 552On Order	Mfr. Part No. IS62WV5128BLL-55T2LI Mouser Part No 87062WV5128BLL55T2LI	ISSI	SRAM 4Mb 512Kx8 55ns Async SRAM Learn More about ISSI ultra low power sram	Datasheet	552On Order	£6.98 £6.49 £6.29 £6.14 £6.03	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-32	4 Mbit	Parallel
MRAM 4Mb 3.3V 50Mhz 512K x 8 SPI MR20H40CDF Everspin Technologies 1: £25.89 138Expected 02/12/2026	Mfr. Part No. MR20H40CDF Mouser Part No 936-MR20H40CDF	Everspin Technologies	MRAM 4Mb 3.3V 50Mhz 512K x 8 SPI Learn More about Everspin Technologies everspin 4mb parallel mrams	Datasheet	138Expected 02/12/2026	£25.89 £23.96 £23.20 £22.63 View £22.04 £21.31	Min.: 1 Mult.: 1	MRAM	SMD/SMT	DFN-8	4 Mbit	SPI
SRAM 4Mb, Low Power/Power Saver,Async,512K x 8,45ns,2.2v 3.6v,32 Pin TSOP II, RoHS IS62WV5128EBLL-45T2LI ISSI 1: £5.28 101Expected 03/11/2026	Mfr. Part No. IS62WV5128EBLL-45T2LI Mouser Part No 870-625128EBLL45T2LI	ISSI	SRAM 4Mb, Low Power/Power Saver,Async,512K x 8,45ns,2.2v 3.6v,32 Pin TSOP II, RoHS	Datasheet	101Expected 03/11/2026	£5.28 £4.92 £4.78 £4.66 £4.53	Min.: 1 Mult.: 1	SRAM	SMD/SMT	TSOP-32	4 Mbit	Parallel
SRAM 4Mb 512Kx8 30MHz Serial SRAM IT IS62WVS5128GALL-30NLI ISSI 1: £5.37 198On Order	Mfr. Part No. IS62WVS5128GALL-30NLI Mouser Part No 870-62WS5128GALL30NI	ISSI	SRAM 4Mb 512Kx8 30MHz Serial SRAM IT	Datasheet	198On Order	£5.37 £4.62	Min.: 1 Mult.: 1	SRAM	SMD/SMT	SOIC-8	4 Mbit	SDI, SPI, SQI