AT89C51RB2-RLTUM The AT89C51RB2-RLTUM is an 8-bit microcontroller from Microchip Technology based on the 80C51 core, operating at up to 60MHz with 16KB of Flash memory and 1.25KB of RAM.
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AT89C51RB2-RLTUM

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
The AT89C51RB2-RLTUM is an 8-bit microcontroller from Microchip Technology based on the 80C51 core, operating at up to 60MHz with 16KB of Flash memory and 1.25KB of RAM.
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AT89C51RB2-RLTUM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Lead Style
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

AT89C51RB2-RLTUM Description

Short technical summary and product information.

The Microchip Technology AT89C51RB2-RLTUM is an 8-bit microcontroller built on the 80C51 architecture. It operates at a maximum speed of 60MHz and features 16KB of on-chip Flash program memory and 1.25KB of RAM. The device includes 32 general-purpose I/O lines and supports connectivity via SPI and UART/USART interfaces.

 

Integrated peripherals include Power-On Reset (POR), Pulse Width Modulation (PWM), and a Watchdog Timer (WDT). The microcontroller is designed for a supply voltage range of 2.7V to 5.5V and operates over an industrial temperature range of -40°C to +85°C.

 

The AT89C51RB2-RLTUM is supplied in a 44-VQFP (10x10) surface-mount package, making it suitable for space-constrained embedded applications. It is commonly used in industrial automation, consumer electronics, and automotive systems.

AT89C51RB2-RLTUM Quick Information

Product Type: Microcontroller
Series: AT89C51
Canonical Name: AT89C51RB2-RLTUM
Subcategory: 8-bit Microcontroller

AT89C51RB2-RLTUM Compliance

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

AT89C51RB2-RLTUM Features

  • 8-bit 80C51 core at 60MHz
  • 16KB Flash program memory
  • 1.25KB on-chip RAM
  • 32 general-purpose I/O pins
  • SPI and UART/USART connectivity

AT89C51RB2-RLTUM Applications

  • Used in industrial automation systems
  • Suitable for consumer electronics
  • Ideal for automotive control modules
  • Applicable in embedded control designs

AT89C51RB2-RLTUM FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the AT89C51RB2-RLTUM?

The supply voltage range is 2.7V to 5.5V.

What package does the AT89C51RB2-RLTUM come in?

It is available in a 44-lead LQFP package (44-VQFP, 10x10mm).

What is the operating temperature range of the AT89C51RB2-RLTUM?

The operating temperature range is -40°C to +85°C.

Is the AT89C51RB2-RLTUM RoHS compliant?

The part is listed as RoHS3 Compliant, but this is unverified. Verify from official documents.

How much Flash memory does the AT89C51RB2-RLTUM have?

It has 16KB of Flash program memory.

What is the maximum clock speed of the AT89C51RB2-RLTUM?

The maximum clock speed is 60MHz.

What serial interfaces does the AT89C51RB2-RLTUM support?

It supports SPI and UART/USART.

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