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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 (HKD) 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 4Mb (512Kx8) OTP 5V 70ns AT27C040-70JU Microchip Technology 1: HK$73.40 264In Stock	Mfr. Part No. AT27C040-70JU Mouser Part No 556-AT27C04070JU	Microchip Technology	EPROM 4Mb (512Kx8) OTP 5V 70ns	Datasheet	264In Stock	HK$73.40 HK$70.61 HK$67.90	Min.: 1 Mult.: 1	EPROM	SMD/SMT	PLCC-32	4 Mbit	Parallel
EPROM 4Mb (256Kx16) OTP 5V 90ns AT27C4096-90PU Microchip Technology 1: HK$79.90 212In Stock	Mfr. Part No. AT27C4096-90PU Mouser Part No 556-AT27C4096-90PU	Microchip Technology	EPROM 4Mb (256Kx16) OTP 5V 90ns	Datasheet	212In Stock	HK$79.90 HK$76.94 HK$73.90	Min.: 1 Mult.: 1	EPROM	Through Hole	PDIP-40	4 Mbit	Parallel
NOR Flash 4.5V to 5.5V 4Mbit Multi-Purpose Flash SST39SF040-55-4I-NHE-T Microchip Technology 1: HK$25.15 680In Stock	Mfr. Part No. SST39SF040-55-4I-NHE-T Mouser Part No 579-SST39040554INHET	Microchip Technology	NOR Flash 4.5V to 5.5V 4Mbit Multi-Purpose Flash	Datasheet	680In Stock	Cut Tape HK$25.15 Reel HK$23.10	Min.: 1 Mult.: 1 : 750	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
NOR Flash 3.0 to 3.6V 4Mbit Multi-Purpose Flash SST39LF040-55-4C-NHE-T Microchip Technology 1: HK$22.19 1,871In Stock	Mfr. Part No. SST39LF040-55-4C-NHE-T Mouser Part No 579-SST39LF040554CN	Microchip Technology	NOR Flash 3.0 to 3.6V 4Mbit Multi-Purpose Flash	Datasheet	1,871In Stock	Cut Tape HK$22.19 Reel HK$20.39 MouseReel Available	Min.: 1 Mult.: 1 : 750	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
NOR Flash 4M (512Kx8) 70ns 5.0V Commercial SST39SF040-70-4C-NHE-T Microchip Technology 1: HK$23.59 816In Stock	Mfr. Part No. SST39SF040-70-4C-NHE-T Mouser Part No 804-39SF0407CNHE-T	Microchip Technology	NOR Flash 4M (512Kx8) 70ns 5.0V Commercial	Datasheet	816In Stock	Cut Tape HK$23.59 Reel HK$21.70	Min.: 1 Mult.: 1 : 750	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
NOR Flash 512K X 8 70ns SST39SF040-70-4I-NHE Microchip Technology 1: HK$24.33 2,347In Stock 2,760Expected 2/10/2026	Mfr. Part No. SST39SF040-70-4I-NHE Mouser Part No 804-39SF0407INHE	Microchip Technology	NOR Flash 512K X 8 70ns	Datasheet	2,347In Stock 2,760Expected 2/10/2026	HK$24.33 HK$23.51 HK$22.44	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
NOR Flash 4M (512Kx8) 70ns 2.7-3.6V Commercial SST39VF040-70-4C-NHE Microchip Technology 1: HK$21.45 611In Stock	Mfr. Part No. SST39VF040-70-4C-NHE Mouser Part No 804-39VF0407CNHE	Microchip Technology	NOR Flash 4M (512Kx8) 70ns 2.7-3.6V Commercial	Datasheet	611In Stock	HK$21.45 HK$20.63 HK$19.81	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
NOR Flash 4M (512Kx8) 70ns 2.7-3.6V Industrial SST39VF040-70-4I-NHE-T Microchip Technology 1: HK$22.28 785In Stock	Mfr. Part No. SST39VF040-70-4I-NHE-T Mouser Part No 804-39VF0407INHE-T	Microchip Technology	NOR Flash 4M (512Kx8) 70ns 2.7-3.6V Industrial	Datasheet	785In Stock	Cut Tape HK$22.28 Reel HK$20.63 MouseReel Available	Min.: 1 Mult.: 1 : 750	NOR Flash	SMD/SMT	PLCC-32	4 Mbit	Parallel
F-RAM FRAM CY15B204QN-40SXE Infineon Technologies 1: HK$185.61 62In Stock 1,880Expected 22/10/2026	Mfr. Part No. CY15B204QN-40SXE Mouser Part No 726-CY15B204QN-40SXE	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress excelon fram	Datasheet	62In Stock 1,880Expected 22/10/2026	HK$185.61 HK$172.13 HK$166.78 HK$161.11 View HK$157.08 HK$153.14 HK$151.82	Min.: 1 Mult.: 1	FRAM	SMD/SMT	SOIC-8	4 Mbit	SPI
F-RAM 4M (256Kx16) 55ns F-RAM Infineon Technologies FM22LD16-55-BG FM22LD16-55-BG Infineon Technologies 1: HK$488.93 610In Stock	Mfr. Part No. FM22LD16-55-BG Mouser Part No 877-FM22LD16-55-BG	Infineon Technologies	F-RAM 4M (256Kx16) 55ns F-RAM Learn More about Infineon Technologies cypress parallel fram	Datasheet	610In Stock	HK$488.93 HK$451.77 HK$437.06 HK$426.21 View HK$415.44 Quote	Min.: 1 Mult.: 1	FRAM	SMD/SMT	BGA-48	4 Mbit	Parallel
NOR Flash spiFlash, 4M-bit, 4Kb Uniform Sector W25Q40RVSSJQ Winbond 1: HK$12.58 1,227In Stock	Mfr. Part No. W25Q40RVSSJQ Mouser Part No 454-W25Q40RVSSJQ	Winbond	NOR Flash spiFlash, 4M-bit, 4Kb Uniform Sector Learn More about Winbond nor		1,227In Stock	HK$12.58	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mb Multi-Purpose Flash SST39VF400A-70-4C-EKE-T Microchip Technology 1: HK$19.23 360In Stock NRND	Mfr. Part No. SST39VF400A-70-4C-EKE-T Mouser Part No 579-39VF400A7CEKET NRND	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mb Multi-Purpose Flash	Datasheet	360In Stock	Cut Tape HK$19.23 HK$17.84 Reel HK$14.96 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	NOR Flash	SMD/SMT	TSOP-48	4 Mbit	Parallel
NOR Flash 4M (256K x 16) 55ns SST39LF400A-55-4C-EKE Microchip Technology 1: HK$24.99 76In Stock NRND	Mfr. Part No. SST39LF400A-55-4C-EKE Mouser Part No 804-39LF400A55CEKE NRND	Microchip Technology	NOR Flash 4M (256K x 16) 55ns	Datasheet	76In Stock	HK$24.99 HK$22.77 HK$19.23	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	TSOP-48	4 Mbit	Parallel
NOR Flash 256K X 16 70ns SST39VF400A-70-4C-EKE Microchip Technology 1: HK$18.00 445In Stock NRND	Mfr. Part No. SST39VF400A-70-4C-EKE Mouser Part No 804-39VF400A7CEKE NRND	Microchip Technology	NOR Flash 256K X 16 70ns	Datasheet	445In Stock	HK$18.00 HK$16.52 HK$13.97	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	TSOP-48	4 Mbit	Parallel
F-RAM 4Mbit FeRAM, SPI, 1.8-3.6V - SOP8 (208mil) tube (125C) MB85RS4MTYPF-G-BCE1 RAMXEED 1: HK$171.06 1,020In Stock	Mfr. Part No. MB85RS4MTYPF-G-BCE1 Mouser Part No 249-MB85RS4MTYPFBCE1	RAMXEED	F-RAM 4Mbit FeRAM, SPI, 1.8-3.6V - SOP8 (208mil) tube (125C) Learn More about RAMXEED aec q100 spi feram	Datasheet	1,020In Stock	HK$171.06 HK$158.65 HK$153.63 HK$148.86 View HK$145.08 HK$140.81 HK$137.52 Quote	Min.: 1 Mult.: 1	FRAM	SMD/SMT	SOP-8	4 Mbit	SPI
EEPROM 4-Mbit serial SPI bus EEPROM M95M04-DRCS6TPVF STMicroelectronics 1: HK$37.98 3,764In Stock	Mfr. Part No. M95M04-DRCS6TPVF Mouser Part No 511-M95M04-DRCS6TPVF	STMicroelectronics	EEPROM 4-Mbit serial SPI bus EEPROM Learn More about STMicroelectronics stm m95m04 4mbit serial eeproms	Datasheet	3,764In Stock	Cut Tape HK$37.98 HK$35.43 HK$34.44 HK$33.62 View Reel HK$27.78 HK$32.80 HK$31.81 HK$30.99 HK$30.25 HK$27.78 HK$27.78 MouseReel Available	Min.: 1 Mult.: 1 : 10,000	EEPROM	SMD/SMT	WLCSP-8	4 Mbit	SPI
EEPROM 4-Mbit serial SPI bus EEPROM M95M04-DRDW6TP STMicroelectronics 1: HK$26.88 1,277In Stock 4,000Expected 16/11/2026	Mfr. Part No. M95M04-DRDW6TP Mouser Part No 511-M95M04-DRDW6TP	STMicroelectronics	EEPROM 4-Mbit serial SPI bus EEPROM Learn More about STMicroelectronics stm m95m04 4mbit serial eeproms	Datasheet	1,277In Stock 4,000Expected 16/11/2026	Cut Tape HK$26.88 HK$25.15 HK$24.41 HK$23.84 View Reel HK$21.37 HK$23.26 HK$22.52 HK$22.03 HK$21.45 HK$21.37 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	EEPROM	SMD/SMT	TSSOP-8	4 Mbit	SPI
EEPROM Automotive 4096 Kbit SPI bus EEPROM with high speed clock M95M04-DWDW3TP/V STMicroelectronics 1: HK$48.58 3,658In Stock	Mfr. Part No. M95M04-DWDW3TP/V Mouser Part No 511-M95M04-DWDW3TP/V	STMicroelectronics	EEPROM Automotive 4096 Kbit SPI bus EEPROM with high speed clock Learn More about STMicroelectronics stm m95m04 4mbit serial eeproms	Datasheet	3,658In Stock	Cut Tape HK$48.58 HK$45.21 HK$43.89 HK$42.91 View Reel HK$34.69 HK$41.84 HK$40.52 HK$39.54 HK$38.55 HK$34.69 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	EEPROM	SMD/SMT	TSSOP-8	4 Mbit	SPI
EPROM 4Mb (256Kx16) OTP 5V 90ns AT27C4096-90JU Microchip Technology 1: HK$77.84 203In Stock	Mfr. Part No. AT27C4096-90JU Mouser Part No 556-AT27C4096-90JU	Microchip Technology	EPROM 4Mb (256Kx16) OTP 5V 90ns	Datasheet	203In Stock	HK$77.84 HK$75.13 HK$72.09	Min.: 1 Mult.: 1	EPROM	SMD/SMT	PLCC-44	4 Mbit	Parallel
EEPROM 8-TDFN (6 x 5 mm) 25CSM04-I/MF Microchip Technology 1: HK$23.34 2,136In Stock	Mfr. Part No. 25CSM04-I/MF Mouser Part No 579-25CSM04-I/MF	Microchip Technology	EEPROM 8-TDFN (6 x 5 mm) Learn More about Microchip Technology microchip 25csm4 serial eeproms	Datasheet	2,136In Stock	HK$23.34 HK$22.44 HK$22.03 HK$21.54	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	TDFN-8	4 Mbit	SPI
EEPROM 8-TDFN (6 x 5 mm) 25CSM04T-I/MF Microchip Technology 1: HK$23.43 3,969In Stock	Mfr. Part No. 25CSM04T-I/MF Mouser Part No 579-25CSM04T-I/MF	Microchip Technology	EEPROM 8-TDFN (6 x 5 mm) Learn More about Microchip Technology microchip 25csm4 serial eeproms	Datasheet	3,969In Stock	Cut Tape HK$23.43 Reel HK$21.54 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	EEPROM	SMD/SMT	TDFN-8	4 Mbit	SPI
EEPROM 8-SOIC(3.9 x 4.9 mm) 25CSM04T-I/SN Microchip Technology 1: HK$19.40 1,681In Stock 3,300Expected 3/12/2026	Mfr. Part No. 25CSM04T-I/SN Mouser Part No 579-25CSM04T-I/SN	Microchip Technology	EEPROM 8-SOIC(3.9 x 4.9 mm) Learn More about Microchip Technology microchip 25csm4 serial eeproms	Datasheet	1,681In Stock 3,300Expected 3/12/2026	Cut Tape HK$19.40 Reel HK$17.92	Min.: 1 Mult.: 1 : 3,300	EEPROM	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash SST25VF040B-50-4I-SAE-T Microchip Technology 1: HK$10.69 3,395In Stock	Mfr. Part No. SST25VF040B-50-4I-SAE-T Mouser Part No 579-25VF040B504ISAET	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash	Datasheet	3,395In Stock	Cut Tape HK$10.69 HK$10.19 HK$9.95 HK$9.86 Reel HK$9.70 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash SST25VF040B-50-4I-SAF-T Microchip Technology 1: HK$10.28 5,957In Stock	Mfr. Part No. SST25VF040B-50-4I-SAF-T Mouser Part No 579-25VF040B504ISAFT	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash	Datasheet	5,957In Stock	Cut Tape HK$10.28 HK$9.95 Reel HK$9.70 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash SST25VF040B-50-4I-S2AE-T Microchip Technology 1: HK$10.28 1,640In Stock	Mfr. Part No. SST25VF040B-50-4I-S2AE-T Mouser Part No 579-25VF40B504IS2AET	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash	Datasheet	1,640In Stock	Cut Tape HK$10.28 HK$9.95 Reel HK$9.04 MouseReel Available	Min.: 1 Mult.: 1 : 2,100	NOR Flash	SMD/SMT	SOIJ-8	4 Mbit	SPI