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CY15B104Q 4-Mbit Serial SPI F-RAM

Infineon Technologies CY15B104Q 4-Mbit Serial SPI F-RAM is a 4-Mbit non-volatile ferroelectric random access memory (F-RAM) logically organized as 512K×8. F-RAM is non-volatile and performs reads and writes similar to a RAM with reliable data retention of 151 years. The Infineon CY15B104Q eliminates the complexities, overhead, and system-level reliability problems caused by serial flash, EEPROM, and other non-volatile memories.

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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.	Memory Size	Interface Type	Maximum Clock Frequency	Organization	Package / Case	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
F-RAM FRAM Infineon Technologies CY15B104Q-SXIT CY15B104Q-SXIT Infineon Technologies 1: $32.00 1,985In Stock NRND	Mfr. Part # CY15B104Q-SXIT Mouser Part # 727-CY15B104Q-SXIT NRND	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	1,985In Stock	Cut Tape $32.00 $29.88 $28.96 $27.97 View Reel $23.67 $27.27 $26.36 $26.01 $25.12 $23.67 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	4 Mbit	SPI	25 MHz, 40 MHz	512 k x 8	SOIC-8	2 V	3.6 V	- 40 C	+ 85 C	CY15B104	Reel, Cut Tape, MouseReel
F-RAM FRAM CY15B104Q-SXI Infineon Technologies 1: $32.64 2,401In Stock NRND	Mfr. Part # CY15B104Q-SXI Mouser Part # 727-CY15B104Q-SXI NRND	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	2,401In Stock	$32.64 $30.23 $29.27 $27.72 View $27.05 $26.39 Quote	Min.: 1 Mult.: 1	4 Mbit	SPI	25 MHz, 40 MHz	512 k x 8	SOIC-8	2 V	3.6 V	- 40 C	+ 85 C	CY15B104	Tube
F-RAM FRAM CY15B104Q-LHXI Infineon Technologies 1: $34.11 887In Stock 740Expected 10/19/2026	Mfr. Part # CY15B104Q-LHXI Mouser Part # 727-CY15B104Q-LHXI	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	887In Stock 740Expected 10/19/2026	$34.11 $31.39 $30.48 $29.98 View $29.40 $29.35 Quote	Min.: 1 Mult.: 1	4 Mbit	SPI	25 MHz, 40 MHz	512 k x 8	TDFN-8	2 V	3.6 V	- 40 C	+ 85 C	CY15B104	Tube
F-RAM FRAM Excelon Auto CY15B104QN-50SXA Infineon Technologies 1: $20.86 754In Stock 470On Order	Mfr. Part # CY15B104QN-50SXA Mouser Part # 727-CY15B104QN-50SXA	Infineon Technologies	F-RAM FRAM Excelon Auto Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	754In Stock 470On Order	$20.86 $19.34 $18.73 $17.86 View $17.42 $17.16 $16.71 Quote	Min.: 1 Mult.: 1	4 Mbit	SPI	50 MHz	512 k x 8	SOIC-8	1.8 V	3.6 V	- 40 C	+ 85 C	CY15B104	Tube
F-RAM 4Mb F-RAM 108 MHz QSPI CY15B104QSN-108SXI Infineon Technologies 1: $33.22 603In Stock	Mfr. Part # CY15B104QSN-108SXI Mouser Part # 727-CY15B104QSN108SX	Infineon Technologies	F-RAM 4Mb F-RAM 108 MHz QSPI Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	603In Stock	$33.22 $32.41 $31.40 $30.36 View $29.60 $28.97 Quote	Min.: 1 Mult.: 1	4 Mbit	Quad SPI	108 MHz	512 k x 8	SOIC-8	1.8 V	3.6 V	- 40 C	+ 85 C	CY15B104	Tube
F-RAM FRAM Infineon Technologies CY15B104QN-50SXI CY15B104QN-50SXI Infineon Technologies 1: $17.94 679In Stock	Mfr. Part # CY15B104QN-50SXI Mouser Part # 727-CY15B104QN-50	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	679In Stock	$17.94 $16.64 $16.13 $15.38 View $15.00 $14.77 $14.39 Quote	Min.: 1 Mult.: 1	4 Mbit	SPI	50 MHz	512 k x 8	SOIC-8	1.8 V	3.6 V	- 40 C	+ 85 C	CY15B104	Tube
F-RAM FRAM CY15B104Q-LHXIT Infineon Technologies 1: $35.77 4,155On Order	Mfr. Part # CY15B104Q-LHXIT Mouser Part # 727-CY15B104Q-LHXIT	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	4,155On Order On Order Ship Dates Mfr. #: CY15B104Q-LHXIT Stock: 0 On Order: 1,655 Expected 10/8/2026 2,500 TBD Factory Lead-Time: 26 Weeks	Cut Tape $35.77 $33.41 $32.62 $31.24 View Reel $27.28 $30.46 $29.45 $27.28 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	4 Mbit	SPI	25 MHz, 40 MHz	512 k x 8	TDFN-8	2 V	3.6 V	- 40 C	+ 85 C	CY15B104	Reel, Cut Tape, MouseReel
F-RAM FRAM CY15B104QSN-108BFXI Infineon Technologies 4,900: $17.51 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QSN-108BFXI Mouser Part # 726-15B104QSN108BFXI	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	$17.51	Min.: 4,900 Mult.: 4,900			108 MHz		UFLGA-8						Tray
F-RAM FRAM CY15B104QSN-108BFXIT Infineon Technologies 2,500: $17.35 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QSN-108BFXIT Mouser Part # 726-5B104QSN108BFXIT	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $17.35	Min.: 2,500 Mult.: 2,500 : 2,500			108 MHz		UFLGA-8						Reel
F-RAM FRAM CY15B104QI-20BFXI Infineon Technologies 4,900: $12.13 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QI-20BFXI Mouser Part # 726-CY15B104QI20BFXI	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	$12.13	Min.: 4,900 Mult.: 4,900			20 MHz		UFLGA-8						Tray
F-RAM FRAM CY15B104QN-20BFXI Infineon Technologies 4,900: $12.09 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QN-20BFXI Mouser Part # 726-CY15B104QN20BFXI	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	$12.09	Min.: 4,900 Mult.: 4,900		SPI	20 MHz		UFLGA-8						Tray
F-RAM FRAM CY15B104QN-50BFXI Infineon Technologies 4,900: $12.31 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QN-50BFXI Mouser Part # 726-CY15B104QN50BFXI	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	$12.31	Min.: 4,900 Mult.: 4,900		SPI	50 MHz		UFLGA-8						Tray
F-RAM FRAM CY15B104QSN-108SXIT Infineon Technologies 2,000: $26.48 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QSN-108SXIT Mouser Part # 727-15B104QSN108SXIT	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $26.48	Min.: 2,000 Mult.: 2,000 : 2,000	4 Mbit	SPI	108 MHz	512 k x 8	SOIC-8	1.8 V	3.6 V	- 40 C	+ 85 C	CY15B104	Reel
F-RAM FRAM CY15B104QN-50SXAT Infineon Technologies 2,000: $15.06 Non-Stocked Lead-Time 26 Weeks	Mfr. Part # CY15B104QN-50SXAT Mouser Part # 727-CY15B104QN50SXAT	Infineon Technologies	F-RAM FRAM Learn More about Infineon Technologies cypress cy15b104q f ram	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $15.06	Min.: 2,000 Mult.: 2,000 : 2,000	4 Mbit	SPI	50 MHz	512 k x 8	SOIC-8	1.8 V	3.6 V	- 40 C	+ 85 C	CY15B104	Reel

CY15B104Q 4-Mbit Serial SPI F-RAM

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