8051 Family AT89C2051 Series Microcontrollers 8-bit Microcontrollers

With direct LED Drive Outputs

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2KB of Flash programmable and erasable read-only memory (PEROM). By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C2051 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications.

  • Fully Static Operation: Up to 24 MHz
  • Flash: 2K bytes, RAM: 128B
  • 6x Interrupt Sources
  • Interface: UART
  • Direct LED Drive Outputs
  • Low-power Idle and Power-down Modes
  • 15 I/O lines
  • On-chip Analog Comparator
  • 2x 16 bit timer/Counters
  • Applications: LED lighting, House hold application.
Show More
Filter Layout:
Filter Applied
Product Range
= 8051 Family AT89C2051 Series Microcontrollers
1 Filter(s) Selected
4 Products Found Please click the 'Apply Filters' button to update results
Min/Max Availability

When the Remember checkbox is selected we will save your latest filter preferences for future searches

Compliance
Min/Max Product Range
Min/Max Device Core
Min/Max Operating Frequency Max
Min/Max Program Memory Size
Min/Max No. of Pins
Min/Max IC Case / Package
Min/Max No. of I/O's
Min/Max Interfaces
Min/Max RAM Memory Size
Min/Max Supply Voltage Min
Min/Max Supply Voltage Max
Min/Max Operating Temperature Min
Min/Max Operating Temperature Max
Min/Max IC Mounting
Min/Max MCU Family
Min/Max MCU Series
Packaging

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

Filter Applied
Product Range
= 8051 Family AT89C2051 Series Microcontrollers
 
Compare Selected Compare (0)
  Manufacturer Part No Order Code Description / Manufacturer
Availability Price For
Price (Incl JCT)
Quantity
Product Range Device Core Operating Frequency Max Program Memory Size No. of Pins IC Case / Package No. of I/O's Interfaces RAM Memory Size Supply Voltage Min Supply Voltage Max Operating Temperature Min Operating Temperature Max IC Mounting MCU Family MCU Series
 
 
Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending Sort Acending Sort Decending
AT89C2051-24PU
AT89C2051-24PU - 8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 24 MHz, 2 KB, 20 Pins, DIP

1715457

8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 24 MHz, 2 KB, 20 Pins, DIP

MICROCHIP

You previously purchased this product. View in Order History
+ Check Stock & Lead Times

10 deliver in 2-3 business days from our SG warehouse :(SG stock) Order before 17:00 Mon-Fri (excluding National Holidays)

3,758 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)

[1,548 more will be available on 8/15/25]

More stock available week commencing 9/8/25

Each

1+ ¥286.70 (¥315.37) 25+ ¥266.09 (¥292.70)

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
8051 Family AT89C2051 Series Microcontrollers 8051 24MHz 2KB 20Pins DIP 15I/O's UART 128Byte 2.7V 6V -40°C 85°C Through Hole 8051 AT89C2051
AT89C2051-24SU
AT89C2051-24SU - 8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 24 MHz, 2 KB, 20 Pins, SOIC

1715459

8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 24 MHz, 2 KB, 20 Pins, SOIC

MICROCHIP

You previously purchased this product. View in Order History
+ Check Stock & Lead Times

2,157 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)

More stock available week commencing 9/22/25

Each

1+ ¥205.64 (¥226.20) 25+ ¥197.03 (¥216.73) 100+ ¥188.42 (¥207.26)

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
8051 Family AT89C2051 Series Microcontrollers 8051 24MHz 2KB 20Pins SOIC 15I/O's UART 128Byte 4V 6V -40°C 85°C Surface Mount 8051 AT89C2051
AT89C2051-12PU
AT89C2051-12PU - 8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 12 MHz, 2 KB, 20 Pins, DIP

1699389

8 Bit MCU, 8051 Family AT89C2051 Series Microcontrollers, 8051, 12 MHz, 2 KB, 20 Pins, DIP

MICROCHIP

You previously purchased this product. View in Order History

Available for back order.

More stock available week commencing 9/1/25

+ Check Stock & Lead Times

More stock available week commencing 9/1/25

Please note that this product is not in stock. You may place a back-order by clicking the button or register interest by clicking the 'Contact me when back in stock' link.

Contact me when back in stock

Each

1+ ¥286.70 (¥315.37) 25+ ¥258.18 (¥284.00)

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
8051 Family AT89C2051 Series Microcontrollers 8051 12MHz 2KB 20Pins DIP 15I/O's UART 128Byte 2.7V 6V -40°C 85°C Through Hole 8051 AT89C2051
AT89C2051-12PU.
AT89C2051-12PU. - MICROCONTROLLER MCU, 8 BIT, 8051, 12MHZ, DIP-20

2695485

MICROCONTROLLER MCU, 8 BIT, 8051, 12MHZ, DIP-20

MICROCHIP

You previously purchased this product. View in Order History

Available for back order.

More stock available week commencing 8/25/25

+ Check Stock & Lead Times

More stock available week commencing 8/25/25

Please note that this product is not in stock. You may place a back-order by clicking the button or register interest by clicking the 'Contact me when back in stock' link.

Contact me when back in stock

Each

1+ ¥286.70 (¥315.37) 25+ ¥258.18 (¥284.00)

Restricted Item

Minimum order of 1 items Multiples of 1 only Please enter a valid quantity

Add
Min: 1 Mult: 1
8051 Family AT89C2051 Series Microcontrollers 8051 12MHz 2KB 20Pins DIP 15I/O's UART 125Byte 2.7V 6V -55°C 125°C Through Hole 8051 AT89C2051