8-bit Microcontrollers - MCU

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MS51 Industrial Series Microcontrollers (MCUs)

Nuvoton MS51 Industrial Series Microcontrollers (MCUs) are 8-bit, high-performance, embedded Flash type, and 80C51 standard compatible MCUs based on a 1T 8051 core. These MCUs feature 32Kbyte of Flash memory, up to 2Kbyte of SRAM, and 8Kbytes of main Flash (APROM). The MS51 MCUs' Flash supports the In-Application-Programming (IAP) function that enables on-chip firmware updates. These MCUs support a function of configurable Flash from APROM called LDROM, in which the Boot code resides for carrying out In-System-Programming (ISP). To reduce power consumption, the MS51 MCUs offer idle and power-down modes that are software selectable.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (INR) 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	Packaging
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51BA9AE Nuvoton 1: ₹66.88 534In Stock	Mfr. Part No. MS51BA9AE Mouser Part No 503-MS51BA9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	534In Stock	₹66.88 ₹57.52 ₹48.73 ₹45.95 View ₹41.66 ₹39.36 ₹38.41	Min.: 1 Mult.: 1	8051	8 kB	1 kB	MSOP-10	24 MHz	12 bit	8 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51FB9AE Nuvoton 1: ₹133.76 1,206In Stock 4,070Expected 02-11-2026	Mfr. Part No. MS51FB9AE Mouser Part No 503-MS51FB9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	1,206In Stock 4,070Expected 02-11-2026	Cut Tape ₹133.76 ₹89.62 ₹75.67 Reel ₹75.67 ₹61.91 View ₹56.75 ₹49.30 ₹46.24 ₹38.79	Min.: 1 Mult.: 1 : 74	8051	16 kB	1 kB	TSSOP-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51FC0AE Nuvoton 1: ₹82.16 744In Stock	Mfr. Part No. MS51FC0AE Mouser Part No 503-MS51FC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	744In Stock	₹82.16 ₹70.41 ₹59.90 ₹56.56 View ₹51.30 ₹49.97 ₹46.91 ₹45.86	Min.: 1 Mult.: 1	8051	32 kB	2 kB	TSSOP-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51PC0AE Nuvoton 1: ₹120.38 83In Stock 1,500Expected 19-07-2027	Mfr. Part No. MS51PC0AE Mouser Part No 503-MS51PC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	83In Stock 1,500Expected 19-07-2027	₹120.38 ₹103.18 ₹89.81 ₹84.84 View ₹78.92 ₹75.00 ₹69.74 ₹66.02 ₹64.20	Min.: 1 Mult.: 1	8051	32 kB	2 kB	LQFP-32	24 MHz	12 bit	30 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tray
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51TC0AE Nuvoton 1: ₹94.58 975In Stock	Mfr. Part No. MS51TC0AE Mouser Part No 503-MS51TC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	975In Stock	₹94.58 ₹80.92 ₹71.08 ₹67.16 View ₹59.43 ₹56.56 ₹56.46 ₹54.46 ₹53.88	Min.: 1 Mult.: 1	8051	32 kB	2 kB	QFN-33	24 MHz	12 bit	30 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tray
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width MS51XB9AE Nuvoton 1: ₹62.10 627In Stock	Mfr. Part No. MS51XB9AE Mouser Part No 503-MS51XB9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width Learn More about Nuvoton ms51 industrial mcus	Datasheet	627In Stock	₹62.10 ₹53.22 ₹46.91 ₹44.33 View ₹38.98 ₹36.97 ₹34.97 ₹34.01	Min.: 1 Mult.: 1	8051	16 kB	1 kB	QFN-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tray
8-bit Microcontrollers - MCU 8K Bytes Shared with LDROM MS51DA9AE Nuvoton 1: ₹166.24 Non-Stocked Lead-Time 40 Weeks	Mfr. Part No. MS51DA9AE Mouser Part No 503-MS51DA9AE	Nuvoton	8-bit Microcontrollers - MCU 8K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	Non-Stocked Lead-Time 40 Weeks	₹166.24 ₹101.27 ₹84.94 ₹64.30 View ₹55.60 ₹48.82 ₹41.56 ₹36.78 ₹35.92	Min.: 1 Mult.: 1	8051	8 kB	1 kB	TSSOP-14	24 MHz	12 bit	12 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51EC0AE Nuvoton 1: ₹100.32 Non-Stocked Lead-Time 40 Weeks	Mfr. Part No. MS51EC0AE Mouser Part No 503-MS51EC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	Non-Stocked Lead-Time 40 Weeks	₹100.32 ₹85.79 ₹75.29 ₹68.79 View ₹62.96 ₹62.87	Min.: 1 Mult.: 1	8051	32 kB	2 kB	TSSOP-28	24 MHz	12 bit	26 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51FB9AE TR Nuvoton 2,500: ₹43.57 Non-Stocked Lead-Time 40 Weeks	Mfr. Part No. MS51FB9AE TR Mouser Part No 503-MS51FB9AETR	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	Non-Stocked Lead-Time 40 Weeks	Reel ₹43.57	Min.: 2,500 Mult.: 2,500 : 2,500	8051	16 kB	1 kB	TSSOP-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Reel
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.5mm Pitch width MS51XB9BE Nuvoton 1: ₹152.86 Non-Stocked Lead-Time 40 Weeks	Mfr. Part No. MS51XB9BE Mouser Part No 503-MS51XB9BE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.5mm Pitch width Learn More about Nuvoton ms51 industrial mcus	Datasheet	Non-Stocked Lead-Time 40 Weeks	₹152.86 ₹92.96 ₹78.15 ₹59.23 View ₹51.30 ₹44.90 ₹38.41 ₹36.11	Min.: 1 Mult.: 1	8051	16 kB	1 kB	QFN-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C	Tray

MS51 Industrial Series Microcontrollers (MCUs)

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