8-bit Microcontrollers - MCU

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PSOC™3 Programmable System-on-Chip

Infineon Technologies PSOC™3 Programmable System-on-Chip devices consist of four families based on the high-performance 8-bit 8051 processor. PSOC3 System-on-Chip devices include high-precision programmable analog capability (up to 20-bit resolution for an analog-to-digital converter) and expanded programmable digital resources integrated with powerful, industry-standard MCU cores and ample memory and communications peripherals.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Core	Program Memory Size	Data RAM Size	Package/Case	Maximum Clock Frequency	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Bus Width	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-073 Infineon Technologies 1: 11,76 € 2 600In Stock	Mfr. Part No. CY8C3446LTI-073 Mouser Part No 727-CY8C3446LTI-073	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	2 600In Stock	11,76 € 10,17 € 9,08 € 8,75 € View 8,38 € 8,11 € 8,02 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-48	50 MHz	12 bit	31 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446	Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245LTI-163 Infineon Technologies 1: 8,39 € 533In Stock	Mfr. Part No. CY8C3245LTI-163 Mouser Part No 727-CY8C3245LTI-163	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	533In Stock	8,39 € 6,53 € 5,78 € 5,55 € View 5,29 € 4,95 € Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3245	Tray
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246AXI-131 Infineon Technologies 1: 12,73 € 666In Stock	Mfr. Part No. CY8C3246AXI-131 Mouser Part No 727-CY8C3246AXI-131	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	666In Stock	12,73 € 9,88 € 8,68 € 8,39 € View 8,03 € 7,94 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	TQFP-100	50 MHz	12 bit	70 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246	Tray
8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz CY8C3666LTI-203 Infineon Technologies 1: 14,47 € 825In Stock	Mfr. Part No. CY8C3666LTI-203 Mouser Part No 727-CY8C3666LTI-203	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz Learn More about Infineon Technologies cypresspsoc3	Datasheet	825In Stock	14,47 € 11,46 € 10,25 € 9,87 € View 9,47 € 9,23 € 9,13 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	67 MHz	12 bit	46 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3666	Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-040 Infineon Technologies 1: 23,14 € 297In Stock	Mfr. Part No. CY8C3866AXI-040 Mouser Part No 727-CY8C3866AXI-040	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	297In Stock	23,14 € 18,58 € 16,30 € 15,82 € View 15,67 € 15,13 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	TQFP-100	67 MHz	20 bit	72 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866PVI-070 Infineon Technologies 1: 19,02 € 237In Stock	Mfr. Part No. CY8C3866PVI-070 Mouser Part No 727-CY8C3866PVI-070	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	237In Stock	19,02 € 18,46 € 13,53 € 13,08 € View 13,07 € 12,38 € 11,45 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	SSOP-48	67 MHz	20 bit	29 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tube
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244AXI-153 Infineon Technologies 1: 9,70 € 33In Stock	Mfr. Part No. CY8C3244AXI-153 Mouser Part No 727-CY8C3244AXI-153	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	33In Stock	9,70 € 7,55 € 6,85 € 5,51 € View 5,49 € 5,14 € 5,01 € Quote	Min.: 1 Mult.: 1	8051	16 kB	2 kB	TQFP-100	50 MHz	12 bit	70 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3244	Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245LTI-139 Infineon Technologies 1: 8,29 € 186In Stock	Mfr. Part No. CY8C3245LTI-139 Mouser Part No 727-CY8C3245LTI-139	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	186In Stock	8,29 € 6,45 € 5,71 € 5,48 € View 5,23 € 5,08 € 4,88 € Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	QFN-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3245	Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445PVI-094 Infineon Technologies 1: 10,61 € 134In Stock	Mfr. Part No. CY8C3445PVI-094 Mouser Part No 727-CY8C3445PVI-094	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	134In Stock	10,61 € 9,48 € 7,33 € 7,24 € View 6,96 € 6,46 € 6,30 € Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	SSOP-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3445	Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-149 Infineon Technologies 1: 12,35 € 8In Stock	Mfr. Part No. CY8C3246LTI-149 Mouser Part No 727-CY8C3246LTI-149	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	8In Stock	12,35 € 9,59 € 8,65 € 8,15 € View 7,77 € 7,54 € 7,19 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246	Tray
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O CY8C3246LTI-149T Infineon Technologies 1: 12,50 € 23In Stock	Mfr. Part No. CY8C3246LTI-149T Mouser Part No 727-CY8C3246LTI-149T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	23In Stock	Cut Tape 12,50 € 9,49 € 9,10 € 8,02 € View Reel 7,18 € 7,63 € 7,37 € 7,19 € 7,18 € Quote	Min.: 1 Mult.: 1 : 2 000	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246	Reel, Cut Tape
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-085 Infineon Technologies 1: 13,89 € 6In Stock	Mfr. Part No. CY8C3446LTI-085 Mouser Part No 727-CY8C3446LTI-085	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	6In Stock	13,89 € 10,87 € 9,79 € 9,25 € View 8,83 € 8,57 € 8,43 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	48 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446	Tray
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446AXI-099 Infineon Technologies 1: 14,67 € 179Expected 20/11/2026	Mfr. Part No. CY8C3446AXI-099 Mouser Part No 727-CY8C3446AXI-099	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	179Expected 20/11/2026	14,67 € 11,15 € 10,68 € 9,41 € View 8,95 € 8,65 € 8,38 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	TQFP-100	50 MHz	12 bit	72 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446	Tray
8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 CY8C3244AXI-153T Infineon Technologies 1 500: 5,17 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244AXI-153T Mouser Part No 727-CY8C3244AXI-153T	Infineon Technologies	8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 5,17 € Quote Quote	Min.: 1 500 Mult.: 1 500 : 1 500	8051										8 bit			CY8C3244	Reel
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244LTI-123 Infineon Technologies 1: 9,09 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244LTI-123 Mouser Part No 727-CY8C3244LTI-123	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 2 Weeks	9,09 € 7,03 € 6,70 € 5,81 € View 5,56 € 4,91 € 4,71 € Quote	Min.: 1 Mult.: 1	8051	16 kB	2 kB	QFN-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3244	Tray
8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 CY8C3244LTI-123T Infineon Technologies 2 000: 4,64 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244LTI-123T Mouser Part No 727-CY8C3244LTI-123T	Infineon Technologies	8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 4,64 € Quote Quote	Min.: 2 000 Mult.: 2 000 : 2 000	8051										8 bit			CY8C3244	Reel
8-bit Microcontrollers - MCU PSoC 16KB FLASH 1.7-5.5V 38 I/O CY8C3244LTI-130T Infineon Technologies 2 000: 5,00 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244LTI-130T Mouser Part No 727-CY8C3244LTI-130T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 16KB FLASH 1.7-5.5V 38 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 5,00 € Quote Quote	Min.: 2 000 Mult.: 2 000 : 2 000	8051			QFN-68						SMD/SMT	8 bit			CY8C3244	Reel
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244PVI-133 Infineon Technologies 1: 8,97 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244PVI-133 Mouser Part No 727-CY8C3244PVI-133	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 2 Weeks	8,97 € 6,93 € 6,61 € 4,91 € View 4,89 € 4,50 € 4,49 € Quote	Min.: 1 Mult.: 1	8051	16 kB	2 kB	SSOP-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3244	Tube
8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 CY8C3244PVI-133T Infineon Technologies 1 000: 4,61 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3244PVI-133T Mouser Part No 727-CY8C3244PVI-133T	Infineon Technologies	8-bit Microcontrollers - MCU 16Kb Flash 2Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 4,61 € 4,53 € Quote Quote	Min.: 1 000 Mult.: 1 000 : 1 000	8051										8 bit			CY8C3244	Reel
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 62 I/O CY8C3245AXI-158T Infineon Technologies 1 500: 5,31 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245AXI-158T Mouser Part No 727-CY8C3245AXI-158T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 62 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 5,31 € Quote Quote	Min.: 1 500 Mult.: 1 500 : 1 500	8051			TQFP-100						SMD/SMT	8 bit			CY8C3245	Reel
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245AXI-166 Infineon Technologies 1: 10,73 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245AXI-166 Mouser Part No 727-CY8C3245AXI-166	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 2 Weeks	10,73 € 8,40 € 7,22 € 6,29 € View 5,87 € Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	TQFP-100	50 MHz		72 I/O	1.71 V	5.5 V	SMD/SMT	8 bit		+ 85 C	CY8C3245	Tray
8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 CY8C3245AXI-166T Infineon Technologies 1 500: 6,05 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245AXI-166T Mouser Part No 727-CY8C3245AXI-166T	Infineon Technologies	8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 6,05 € Quote Quote	Min.: 1 500 Mult.: 1 500 : 1 500	8051										8 bit			CY8C3245	Reel
8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 CY8C3245LTI-144T Infineon Technologies 2 000: 5,42 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245LTI-144T Mouser Part No 727-CY8C3245LTI-144T	Infineon Technologies	8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 5,42 € Quote Quote	Min.: 2 000 Mult.: 2 000 : 2 000	8051										8 bit			CY8C3245	Reel
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O CY8C3245LTI-163T Infineon Technologies 2 000: 5,04 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245LTI-163T Mouser Part No 727-CY8C3245LTI-163T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 5,04 € Quote Quote	Min.: 2 000 Mult.: 2 000 : 2 000	8051			QFN-68						SMD/SMT	8 bit			CY8C3245	Reel
8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 CY8C3245PVI-134T Infineon Technologies 1 000: 4,95 € Non-Stocked Lead-Time 2 Weeks	Mfr. Part No. CY8C3245PVI-134T Mouser Part No 727-CY8C3245PVI-134T	Infineon Technologies	8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 2 Weeks	Reel 4,95 € 4,90 € Quote Quote	Min.: 1 000 Mult.: 1 000 : 1 000	8051										8 bit			CY8C3245	Reel

PSOC™3 Programmable System-on-Chip

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