Microcontrollers

Manufacturers Package/Case Series Packaging Product Status Programmable Core Processor Core Size Speed Connectivity Peripherals Number of I/O Program Memory Size Program Memory Type EEPROM Size RAM Size Voltage - Supply (Vcc/Vdd) Data Converters Oscillator Type Operating Temperature Grade Qualification Mounting Type Supplier Device Package Supplier Device Package

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Photo Mfr. Part # Availability Price Quantity Datasheet Package/Case Series Packaging Product Status Programmable Core Processor Core Size Speed Connectivity Peripherals Number of I/O Program Memory Size Program Memory Type EEPROM Size RAM Size Voltage - Supply (Vcc/Vdd) Data Converters Oscillator Type Operating Temperature Grade Qualification Mounting Type Supplier Device Package Supplier Device Package
AT80C32X2-SLSUL

AT80C32X2-SLSUL

IC MCU 8BIT ROMLESS 44PLCC

Microchip Technology

0
RFQ
AT80C32X2-SLSULDatasheet 44-LCC (J-Lead) 80C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR 32 - ROMless - 256 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT80C32X2-SLSUM

AT80C32X2-SLSUM

IC MCU 8BIT ROMLESS 44PLCC

Microchip Technology

0
RFQ
AT80C32X2-SLSUMDatasheet 44-LCC (J-Lead) 80C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR 32 - ROMless - 256 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT80C51RA2-3CSUL

AT80C51RA2-3CSUL

IC MCU 8BIT ROMLESS 40PDIL

Microchip Technology

0
RFQ
AT80C51RA2-3CSULDatasheet 40-DIP (0.600", 15.24mm) 80C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 - ROMless - 512 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT80C51RA2-3CSUM

AT80C51RA2-3CSUM

IC MCU 8BIT ROMLESS 40PDIL

Microchip Technology

0
RFQ
AT80C51RA2-3CSUMDatasheet 40-DIP (0.600", 15.24mm) 80C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 - ROMless - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT80C51RA2-RLTUM

AT80C51RA2-RLTUM

IC MCU 8BIT ROMLESS 44VQFP

Microchip Technology

0
RFQ
AT80C51RA2-RLTUMDatasheet 44-LQFP 80C Tray Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 - ROMless - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT80C51RA2-SLSUL

AT80C51RA2-SLSUL

IC MCU 8BIT ROMLESS 44PLCC

Microchip Technology

0
RFQ
AT80C51RA2-SLSULDatasheet 44-LCC (J-Lead) 80C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 - ROMless - 512 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT80C51RA2-SLSUM

AT80C51RA2-SLSUM

IC MCU 8BIT ROMLESS 44PLCC

Microchip Technology

0
RFQ
AT80C51RA2-SLSUMDatasheet 44-LCC (J-Lead) 80C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 - ROMless - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT80C51SND1C-ROTUL

AT80C51SND1C-ROTUL

IC MCU 8BIT ROMLESS 80TQFP

Microchip Technology

0
RFQ
AT80C51SND1C-ROTULDatasheet 80-LQFP 80C Tray Obsolete Not Verified 80C51 8-Bit 40MHz I2C, IDE/ATAPI, Memory Card, SPI, UART/USART, USB Audio, I2S, MP3, PCM, POR, WDT 44 - ROMless - 2.25K x 8 2.7V ~ 3.3V A/D 2x10b Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87251G2D-3CSUM

AT87251G2D-3CSUM

IC MCU 8/16BIT 32KB OTP 40PDIL

Microchip Technology

0
RFQ
AT87251G2D-3CSUMDatasheet 40-DIP (0.600", 15.24mm) 8x251 Tube Obsolete Not Verified C251 8/16-Bit 24MHz EBI/EMI, I2C, Microwire, SPI, UART/USART POR, PWM, WDT 32 32KB (32K x 8) OTP - 1K x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT87251G2D-SLSUM

AT87251G2D-SLSUM

IC MCU 8/16BIT 32KB OTP 44PLCC

Microchip Technology

0
RFQ
AT87251G2D-SLSUMDatasheet 44-LCC (J-Lead) 8x251 Tube Obsolete Not Verified C251 8/16-Bit 24MHz EBI/EMI, I2C, Microwire, SPI, UART/USART POR, PWM, WDT 32 32KB (32K x 8) OTP - 1K x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RB2-3CSUL

AT87C51RB2-3CSUL

IC MCU 8BIT 16KB OTP 40PDIL

Microchip Technology

0
RFQ
AT87C51RB2-3CSULDatasheet 40-DIP (0.600", 15.24mm) 87C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT87C51RB2-3CSUM

AT87C51RB2-3CSUM

IC MCU 8BIT 16KB OTP 40PDIL

Microchip Technology

0
RFQ
AT87C51RB2-3CSUMDatasheet 40-DIP (0.600", 15.24mm) 87C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT87C51RB2-RLTUL

AT87C51RB2-RLTUL

IC MCU 8BIT 16KB OTP 44VQFP

Microchip Technology

0
RFQ
AT87C51RB2-RLTULDatasheet 44-LQFP 87C Tray Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RB2-RLTUM

AT87C51RB2-RLTUM

IC MCU 8BIT 16KB OTP 44VQFP

Microchip Technology

0
RFQ
AT87C51RB2-RLTUMDatasheet 44-LQFP 87C Tray Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RB2-SLSUL

AT87C51RB2-SLSUL

IC MCU 8BIT 16KB OTP 44PLCC

Microchip Technology

0
RFQ
AT87C51RB2-SLSULDatasheet 44-LCC (J-Lead) 87C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RB2-SLSUM

AT87C51RB2-SLSUM

IC MCU 8BIT 16KB OTP 44PLCC

Microchip Technology

0
RFQ
AT87C51RB2-SLSUMDatasheet 44-LCC (J-Lead) 87C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 16KB (16K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RC2-3CSUM

AT87C51RC2-3CSUM

IC MCU 8BIT 32KB OTP 40PDIL

Microchip Technology

0
RFQ
AT87C51RC2-3CSUMDatasheet 40-DIP (0.600", 15.24mm) 87C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 32KB (32K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole
AT87C51RC2-RLTUM

AT87C51RC2-RLTUM

IC MCU 8BIT 32KB OTP 44VQFP

Microchip Technology

0
RFQ
AT87C51RC2-RLTUMDatasheet 44-LQFP 87C Tray Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 32KB (32K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RC2-SLSUM

AT87C51RC2-SLSUM

IC MCU 8BIT 32KB OTP 44PLCC

Microchip Technology

0
RFQ
AT87C51RC2-SLSUMDatasheet 44-LCC (J-Lead) 87C Tube Obsolete Not Verified 80C51 8-Bit 40/20MHz UART/USART POR, PWM, WDT 32 32KB (32K x 8) OTP - 512 x 8 4.5V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Surface Mount
AT87C51RD2-3CSUL

AT87C51RD2-3CSUL

IC MCU 8BIT 64KB OTP 40PDIL

Microchip Technology

0
RFQ
AT87C51RD2-3CSULDatasheet 40-DIP (0.600", 15.24mm) 87C Tube Obsolete Not Verified 80C51 8-Bit 30/20MHz UART/USART POR, PWM, WDT 32 64KB (64K x 8) OTP - 1K x 8 2.7V ~ 5.5V - Internal -40°C ~ 85°C (TA) - - Through Hole

Category Overview

Microcontrollers Products & Selection Guide

Microcontrollers are widely used in industrial automation, automotive electronics, communication equipment, consumer electronics, new energy systems, and many other electronic applications. We offer products from multiple manufacturers, packages, and specifications to help engineers and buyers compare and source suitable components.

Use the manufacturer, key specification, availability, and Datasheet filters to narrow down the right Microcontrollers. If the exact part is not listed, submit an inquiry and our team can help check stock, lead time, and suitable alternatives.

FAQ

How do I choose the right Microcontrollers?

Start with the required electrical specifications, package, operating temperature, application conditions, and manufacturer preference, then compare availability and lead time.

Can I order based on the stock shown on this page?

Inventory can change with supply conditions. For project or volume requirements, please submit an inquiry so current stock, pricing, and lead time can be confirmed.

What if the exact part number I need is not listed?

Send us the part number and required quantity. We can help source hard-to-find parts and suggest suitable alternatives based on key specifications.

Do you provide Datasheets and technical documents?

Yes. Use the Datasheet links in the product list to view available technical documents. If a document is unavailable, contact us and we can help check it.

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