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AT89C51AC3-RLTUM The AT89C51AC3-RLTUM is an 8-bit microcontroller from Microchip featuring an 80C51 core, 64KB Flash memory, 2.25KB RAM, and 2KB EEPROM in a 44-VQFP package.
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AT89C51AC3-RLTUM

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The AT89C51AC3-RLTUM is an 8-bit microcontroller from Microchip featuring an 80C51 core, 64KB Flash memory, 2.25KB RAM, and 2KB EEPROM in a 44-VQFP package.
✓ Total Stock: 6,987 pcs

AT89C51AC3-RLTUM Available from 1 distributor

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AT89C51AC3-RLTUM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
SVHC Present
Speed
Supplier Device Package
Voltage
Watchdog Timer
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AT89C51AC3-RLTUM Description

Short technical summary and product information.

The Microchip AT89C51AC3-RLTUM is a high-performance 8-bit microcontroller based on the 80C51 core architecture. It operates at up to 60 MHz (at 4.5V to 5.5V for internal code execution) and supports a supply voltage range of 3V to 5.5V. The device integrates 64KB of on-chip Flash program memory, 2.25KB of RAM, and 2KB of EEPROM, providing ample storage for embedded applications.

 

Key peripherals include 36 I/O lines, an 8-channel 10-bit ADC, three 16-bit timers/counters, a five-channel 16-bit PCA with 8-bit PWM, a full-duplex UART/USART, and a 21-bit watchdog timer. The microcontroller also features in-system programming (ISP) and in-application programming (IAP) via a dedicated 2KB boot Flash, along with power-saving idle and power-down modes.

 

The device is housed in a 44-VQFP (10x10 mm) surface-mount package and is rated for industrial temperature operation from -40°C to +85°C. It is RoHS compliant and lead-free, making it suitable for environmentally conscious designs.

AT89C51AC3-RLTUM Quick Information

Product Type: Microcontroller (MCU)
Canonical Name: AT89C51AC3-RLTUM 8-bit Microcontroller with 64KB Flash, 44-VQFP
Subcategory: 8-bit MCU

AT89C51AC3-RLTUM Compliance

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

AT89C51AC3-RLTUM Features

  • 80C51 core with 60 MHz maximum speed.
  • 64KB Flash program memory with 100K write cycles.
  • 2KB EEPROM and 2.25KB on-chip RAM.
  • 8-channel 10-bit analog-to-digital converter.
  • In-system and in-application programming support.

AT89C51AC3-RLTUM Applications

  • Ideal for industrial control and automation systems.
  • Suitable for embedded sensor and data acquisition.
  • Used in motor control with PWM and PCA.
  • Applicable in communication interfaces via UART/USART.

AT89C51AC3-RLTUM FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the AT89C51AC3-RLTUM?

The operating voltage range is 3V to 5.5V.

What package does the AT89C51AC3-RLTUM come in?

It comes in a 44-VQFP (10x10 mm) surface-mount package.

What is the operating temperature range of the AT89C51AC3-RLTUM?

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

Is the AT89C51AC3-RLTUM RoHS compliant?

Yes, the device is RoHS3 compliant and lead-free.

How much Flash memory does the AT89C51AC3-RLTUM have?

It has 64KB of on-chip Flash program memory.

Does the AT89C51AC3-RLTUM support in-system programming?

Yes, it supports in-system programming (ISP) and in-application programming (IAP) via a dedicated 2KB boot Flash.

What is the maximum clock speed of the AT89C51AC3-RLTUM?

The maximum clock speed is 60 MHz when operating at 4.5V to 5.5V for internal code execution.

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