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AT89C2051-12SC The Microchip Technology AT89C2051-12SC is an 8-bit microcontroller featuring 2KB of Flash memory and operating at speeds up to 12MHz. It is supplied in a 20-SOIC package.
Mfr Part #:

AT89C2051-12SC

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology AT89C2051-12SC is an 8-bit microcontroller featuring 2KB of Flash memory and operating at speeds up to 12MHz. It is supplied in a 20-SOIC package.
✓ Total Stock: 73,508 pcs

AT89C2051-12SC Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
72,320 pcs
On Request
72320 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,188 pcs
On Request
1188 pcs On Request 1 On Request On Request 2021+ On Request On Request
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AT89C2051-12SC Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Halogen Free
Mounting Type
Number of I
Operating Range
Operating Temperature
Operation
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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AT89C2051-12SC Description

Short technical summary and product information.

The AT89C2051-12SC is a low-voltage, high-performance CMOS 8-bit microcontroller from Microchip Technology, built using Atmel's high-density nonvolatile memory technology. It is compatible with the industry-standard MCS-51 instruction set, offering a versatile 8-bit CPU combined with 2KB of reprogrammable Flash memory on a monolithic chip.

 

This microcontroller operates within a 4V to 6V range and features a maximum speed of 12MHz. It includes 128 bytes of internal RAM, 15 programmable I/O lines, two 16-bit timer/counters, and a programmable serial UART channel. The device supports two software-selectable power-saving modes: Idle and Power-down.

 

Designed for embedded control applications, the AT89C2051-12SC is suitable for a wide range of tasks requiring a cost-effective and flexible solution. Its 20-SOIC package with surface mount capability makes it adaptable for various PCB designs.

 

The device also offers features such as an on-chip analog comparator and direct LED drive outputs. The Flash memory has an endurance of 10,000 write/erase cycles, ensuring durability for many applications.

AT89C2051-12SC Quick Information

Product Type: Microcontroller
Series: AT89C
Canonical Name: AT89C2051-12SC 8-Bit Microcontroller
Subcategory: 8-Bit

AT89C2051-12SC Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AT89C2051-12SC Features

  • 8-bit microcontroller with 2KB Flash memory.
  • Operates at speeds up to 12MHz.
  • 15 programmable I/O lines available.
  • 20-SOIC package for surface mounting.
  • Low-power Idle and Power-down modes.

AT89C2051-12SC Applications

  • Used in embedded control and automation systems.
  • Suitable for consumer electronics and appliances.
  • Ideal for low-power sensor interface designs.
  • Applicable in industrial control modules.

AT89C2051-12SC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

2.7V to 6V.

What is the operating temperature range?

0°C to 70°C.

What is the package type?

20-SOIC surface mount.

What is the core processor?

8051 8-bit.

How much Flash memory does it have?

2KB.

How many I/O pins?

15.

Is the device halogen free?

Yes, it has a green (Pb/Halide-free) packaging option.

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