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512 k x 8 Memory ICs

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 2.7V to 3.6V 4Mbit Multi-Purpose Flash SST39VF040-70-4C-TU-T Microchip Technology 1: $2.35 1,037In Stock 1,500Expected 02/03/2027 New Product	Mfr. Part No. SST39VF040-70-4C-TU-T Mouser Part No 579-S39VF040704CTUT New Product	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit Multi-Purpose Flash	Datasheet	1,037In Stock 1,500Expected 02/03/2027	Cut Tape $2.35 Reel $2.15	Min.: 1 Mult.: 1 : 1,500	NOR Flash	SMD/SMT	TSSOP-32	4 Mbit
SRAM ASYNC SRAMS CY7C1049G-10VXIT Infineon Technologies 1: $15.68 2,162In Stock	Mfr. Part No. CY7C1049G-10VXIT Mouser Part No 727-CY7C1049G-10VXIT	Infineon Technologies	SRAM ASYNC SRAMS Learn More about Infineon Technologies cypress fast async sram	Datasheet	2,162In Stock	Cut Tape $15.68 $13.07 $11.80 Reel $11.79 MouseReel Available	Min.: 1 Mult.: 1 : 500	SRAM	SMD/SMT	SOJ-36	4 Mbit	Parallel
NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash SST25WF040BT-40I/NP Microchip Technology 1: $1.40 5,822In Stock	Mfr. Part No. SST25WF040BT-40I/NP Mouser Part No 579-25WF040BT-40I/NP	Microchip Technology	NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash	Datasheet	5,822In Stock	Cut Tape $1.40 Reel $1.31 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NOR Flash	SMD/SMT	USON-8	4 Mbit	SPI
EEPROM 8-TDFN (6 x 5 mm) 25CSM04-I/MF Microchip Technology 1: $2.66 1,986In 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	1,986In Stock	$2.66 $2.61 $2.50 $2.48 $2.41	Min.: 1 Mult.: 1	EEPROM	SMD/SMT	TDFN-8	4 Mbit	SPI
NOR Flash 4Mb, Serial Flash, 3.0V, 105C SST25PF040C-40V/SN Microchip Technology 1: $1.17 1,929In Stock	Mfr. Part No. SST25PF040C-40V/SN Mouser Part No 579-ST25PF040C40V/SN	Microchip Technology	NOR Flash 4Mb, Serial Flash, 3.0V, 105C Learn More about Microchip Technology microchip sst25pf040c flash	Datasheet	1,929In Stock	$1.17 $1.13 $1.12	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
NOR Flash 2.3V TO 3.6V 4Mbit SPI FLASH, 125C Industrial SST25PF040CT-40E/SN Microchip Technology 1: $1.39 3,602In Stock	Mfr. Part No. SST25PF040CT-40E/SN Mouser Part No 579-T25PF040CT-40ESN	Microchip Technology	NOR Flash 2.3V TO 3.6V 4Mbit SPI FLASH, 125C Industrial Learn More about Microchip Technology microchip sst25pf040c flash	Datasheet	3,602In Stock	Cut Tape $1.39 $1.33 $1.32 $1.29 Reel $1.21	Min.: 1 Mult.: 1 : 3,300	NOR Flash	SMD/SMT		4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash AT45DB041E-SSHNHC-T Renesas / Dialog 1: $1.91 2,869In Stock	Mfr. Part No. AT45DB041E-SSHNHC-T Mouser Part No 988-A45DB041ESSHNHCT	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash Learn More about Renesas / Dialog renesas dialog dataflash	Datasheet	2,869In Stock	Cut Tape $1.91 $1.79 $1.74 $1.70 View Reel $1.42 $1.67 $1.61 $1.57 $1.54 $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NOR Flash	SMD/SMT	SOIC-Narrow-8	4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tube), Single, Dual SPI NOR flash AT25DF041B-SSHN-B Renesas / Dialog 1: $1.34 16,228In Stock	Mfr. Part No. AT25DF041B-SSHN-B Mouser Part No 988-AT25DF041BSSHNB	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tube), Single, Dual SPI NOR flash Learn More about Renesas / Dialog renesas dialog serialflash	Datasheet	16,228In Stock	$1.34 $1.26 $1.23 $1.20 View $1.16 $1.13 $1.10 $1.08 $1.01	Min.: 1 Mult.: 1	NOR Flash	SMD/SMT		4 Mbit	SPI
NOR Flash 4 Mbit, 3.0V (2.7V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single, Dual, Quad SPI NOR flash AT25SF041B-SHB-T Renesas / Dialog 1: $0.72 27,731In Stock	Mfr. Part No. AT25SF041B-SHB-T Mouser Part No 988-AT25SF041B-SHB-T	Renesas / Dialog	NOR Flash 4 Mbit, 3.0V (2.7V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single, Dual, Quad SPI NOR flash Learn More about Renesas / Dialog renesas at25sf041b memory	Datasheet	27,731In Stock	Cut Tape $0.72 $0.677 $0.66 $0.646 View Reel $0.455 $0.632 $0.613 $0.599 $0.585 $0.455	Min.: 1 Mult.: 1 : 2,000	NOR Flash	SMD/SMT	SOP-Wide-8	4 Mbit	SPI
NOR Flash 4 Mbit, Ultra Wide Vcc (1.65V to 4.4V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single, Dual SPI NOR flash AT25XV041B-SSHV-T Renesas / Dialog 1: $1.74 3,538In Stock	Mfr. Part No. AT25XV041B-SSHV-T Mouser Part No 988-AT25XV041B-SSHVT	Renesas / Dialog	NOR Flash 4 Mbit, Ultra Wide Vcc (1.65V to 4.4V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single, Dual SPI NOR flash Learn More about Renesas / Dialog renesas dialog serialflash	Datasheet	3,538In Stock	Cut Tape $1.74 $1.63 $1.59 $1.55 View Reel $1.08 $1.52 $1.47 $1.43 $1.40 $1.08 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NOR Flash	SMD/SMT	SOIC-Narrow-8	4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash AT45DB041E-SHNHT-T Renesas / Dialog 1: $2.35 2,838In Stock	Mfr. Part No. AT45DB041E-SHNHT-T Mouser Part No 988-AT45DB041ESHNHTT	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 264 Byte Binary Page Mode, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash Learn More about Renesas / Dialog renesas dialog dataflash	Datasheet	2,838In Stock	Cut Tape $2.35 $2.19 $2.13 $2.09 View Reel $1.68 $2.04 $1.96 $1.93 $1.88 $1.68 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	NOR Flash	SMD/SMT	SOIC-Wide-8	4 Mbit	SPI
NOR Flash spiFlash, 1.8V 4M-bit, 4Kb Uniform Sector W25Q40EWSNIG TR Winbond 1: $2.08 2,500In Stock	Mfr. Part No. W25Q40EWSNIG TR Mouser Part No 454-W25Q40EWSNIGTR	Winbond	NOR Flash spiFlash, 1.8V 4M-bit, 4Kb Uniform Sector Learn More about Winbond nor	Datasheet	2,500In Stock	Cut Tape $2.08 Reel $2.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
SRAM ASYNC SRAMS CY7C1049GN30-10ZSXIT Infineon Technologies 1: $9.96 1,255In Stock	Mfr. Part No. CY7C1049GN30-10ZSXIT Mouser Part No 727-CY7C1049GN3010ZX	Infineon Technologies	SRAM ASYNC SRAMS	Datasheet	1,255In Stock	Cut Tape $9.96 $9.39 $9.17 $8.76 View Reel $8.33 $8.55 $8.34 $8.33 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SRAM	SMD/SMT	TSOP-44	4 Mbit	Parallel
NOR Flash 4 Mbit, 3.0V (2.5V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single, Dual, Quad SPI NOR flash AT25SF041B-SHD-T Renesas / Dialog 1: $0.73 10,346In Stock	Mfr. Part No. AT25SF041B-SHD-T Mouser Part No 988-AT25SF041BSHDT	Renesas / Dialog	NOR Flash 4 Mbit, 3.0V (2.5V to 3.6V), -40C to 85C, SOIC-W 208mil (Tape & Reel), Single, Dual, Quad SPI NOR flash Learn More about Renesas / Dialog renesas at25sf041b memory	Datasheet	10,346In Stock	Cut Tape $0.73 $0.683 $0.665 $0.652 View Reel $0.527 $0.638 $0.619 $0.605 $0.591 $0.527 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	NOR Flash	SMD/SMT	SOP-Wide-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash SST25VF040B-50-4I-SAF-T Microchip Technology 1: $1.25 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 $1.25 $1.21 Reel $1.18 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI
F-RAM 4Kb Serial SPI 3V FRAM FM25L04B-G Infineon Technologies 1: $2.08 3,556In Stock	Mfr. Part No. FM25L04B-G Mouser Part No 877-FM25L04B-G	Infineon Technologies	F-RAM 4Kb Serial SPI 3V FRAM Learn More about Infineon Technologies cypress serial fram	Datasheet	3,556In Stock	$2.08 $1.65 $1.61 $1.57 View $1.54 $1.51 $1.47 $1.45 $1.34	Min.: 1 Mult.: 1	FRAM	SMD/SMT	SOIC-8	4 kbit	SPI
SRAM 4Mb 3V 55ns 512K x 8 LP SRAM CY62148EV30LL-55SXI Infineon Technologies 1: $6.25 935In Stock 500Expected 19/11/2026	Mfr. Part No. CY62148EV30LL-55SXI Mouser Part No 727-C2148EV30LL55SXI	Infineon Technologies	SRAM 4Mb 3V 55ns 512K x 8 LP SRAM Learn More about Infineon Technologies cypress mobl async sram	Datasheet	935In Stock 500Expected 19/11/2026	$6.25 $5.05 $4.90 $4.81 View $4.69 $4.57 $4.54	Min.: 1 Mult.: 1	SRAM	SMD/SMT	SOIC-32	4 Mbit	Parallel
SRAM 4Mb 45ns 512K x 8 Low Power SRAM CY62148ELL-45ZSXIT Infineon Technologies 1: $7.14 1,214In Stock	Mfr. Part No. CY62148ELL-45ZSXIT Mouser Part No 727-CY2148ELL45ZSXIT	Infineon Technologies	SRAM 4Mb 45ns 512K x 8 Low Power SRAM Learn More about Infineon Technologies cypress mobl async sram	Datasheet	1,214In Stock	Cut Tape $7.14 $6.65 $6.45 $6.29 View Reel $5.21 $6.14 $5.94 $5.79 $5.21 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SRAM	SMD/SMT	TSOP-32	4 Mbit	Parallel
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement) AT25PE40-SSHN-T Renesas / Dialog 1: $1.83 3,502In Stock	Mfr. Part No. AT25PE40-SSHN-T Mouser Part No 988-AT25PE40-SSHN-T	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), Single SPI DataFlash (Micron M25PE Replacement) Learn More about Renesas / Dialog renesas dialog at25pe40 flash memory	Datasheet	3,502In Stock	Cut Tape $1.83 $1.72 $1.67 $1.63 View Reel $1.46 $1.59 $1.54 $1.50 $1.47 $1.46 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NOR Flash	SMD/SMT	SOIC-Wide-8	4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 256 Byte Binary Page Mode, DFN 5x6 (Tape & Reel), Single SPI DataFlash AT45DB041E-MHN2B-T Renesas / Dialog 1: $2.11 2,974In Stock	Mfr. Part No. AT45DB041E-MHN2B-T Mouser Part No 988-AT45DB041EMHN2BT	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 256 Byte Binary Page Mode, DFN 5x6 (Tape & Reel), Single SPI DataFlash Learn More about Renesas / Dialog renesas dialog dataflash	Datasheet	2,974In Stock	Cut Tape $2.11 $1.98 $1.92 $1.88 View Reel $1.45 $1.84 $1.78 $1.74 $1.69 $1.45 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	NOR Flash	SMD/SMT	UDFN-8	4 Mbit	SPI
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 256 Byte Binary Page Mode, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash AT45DB041E-SHN2B-T Renesas / Dialog 1: $1.88 3,711In Stock	Mfr. Part No. AT45DB041E-SHN2B-T Mouser Part No 988-AT45DB041ESHN2BT	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, 256 Byte Binary Page Mode, SOIC-W 208mil (Tape & Reel), Single SPI DataFlash Learn More about Renesas / Dialog renesas dialog dataflash	Datasheet	3,711In Stock	Cut Tape $1.88 $1.77 $1.72 $1.68 View Reel $1.43 $1.64 $1.59 $1.55 $1.52 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	NOR Flash	SMD/SMT	SOIC-Wide-8	4 Mbit	SPI
NOR Flash 4Mb SQI Flash Memory 1.8V 8 USON SST26WF040BT-104I/NP Microchip Technology 1: $1.38 6,000In Stock	Mfr. Part No. SST26WF040BT-104I/NP Mouser Part No 579-T26WF040BT104INP	Microchip Technology	NOR Flash 4Mb SQI Flash Memory 1.8V 8 USON Learn More about Microchip Technology sst sst26 flash memory	Datasheet	6,000In Stock	Cut Tape $1.38 $1.37 $1.36 $1.35 $1.31 Reel $1.23 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	NOR Flash	SMD/SMT	UDFN-8	4 Mbit	SPI
SRAM 4Mb 55ns 512K x 8 Low Power SRAM CY62148ELL-55SXIT Infineon Technologies 1: $6.47 1,928In Stock	Mfr. Part No. CY62148ELL-55SXIT Mouser Part No 727-CY62148ELL55SXIT	Infineon Technologies	SRAM 4Mb 55ns 512K x 8 Low Power SRAM Learn More about Infineon Technologies cypress mobl async sram	Datasheet	1,928In Stock	Cut Tape $6.47 $6.02 $5.84 $5.71 Reel $5.12 View $5.57 $5.39 $5.26 $4.99 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SRAM	SMD/SMT	SOIC-32	4 Mbit	Parallel
NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), FusionHD System Enhancing (Single, Dual, Quad) SPI NOR flash AT25XE041D-SSHN-T Renesas / Dialog 1: $0.80 10,157In Stock	Mfr. Part No. AT25XE041D-SSHN-T Mouser Part No 988-25XE041D-SSHN-T	Renesas / Dialog	NOR Flash 4 Mbit, Wide Vcc (1.65V to 3.6V), -40C to 85C, SOIC-N 150mil (Tape & Reel), FusionHD System Enhancing (Single, Dual, Quad) SPI NOR flash Learn More about Renesas / Dialog renesas dialog at25xex fusion memory solutions	Datasheet	10,157In Stock	Cut Tape $0.80 $0.74 $0.72 $0.704 View Reel $0.614 $0.689 $0.669 $0.653 $0.637 $0.614 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	NOR Flash	SMD/SMT	SOIC-Narrow-8	4 Mbit	SPI
NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash SST25VF040B-50-4C-SAF-T Microchip Technology 1: $1.14 2,513In Stock	Mfr. Part No. SST25VF040B-50-4C-SAF-T Mouser Part No 579-25VF040B504CSAFT	Microchip Technology	NOR Flash 2.7V to 3.6V 4Mbit SPI Serial Flash	Datasheet	2,513In Stock	Cut Tape $1.14 $1.05 Reel $1.04 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	NOR Flash	SMD/SMT	SOIC-8	4 Mbit	SPI