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AT89C51AC3-RLTUM

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AT89C51AC3-RLTUM

IC MCU 8BIT 64KB FLASH 44VQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

The Microchip Technology AT89C51AC3-RLTUM is an 8-bit microcontroller based on the 80C51 architecture. This 89C series device features a 60MHz core speed and 64KB of FLASH program memory with 2.25KB of internal RAM. It offers 36 general-purpose I/O pins and includes essential peripherals such as Power-On Reset (POR), PWM, and Watchdog Timer (WDT). Connectivity is provided via a UART/USART. For analog interfacing, it incorporates an 8x10-bit A/D converter. The device also includes 2KB of EEPROM for data storage. Operating from a voltage supply range of 3V to 5.5V, the AT89C51AC3-RLTUM is designed for surface mounting and comes in a 44-VQFP (10x10) package. Its operating temperature range is -40°C to 85°C. This component finds application in industrial automation, consumer electronics, and automotive control systems.

Additional Information

Series: 89CRoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TrayDatasheet:
Technical Details:
PackagingTray
Package / Case44-LQFP
Mounting TypeSurface Mount
Speed60MHz
Program Memory Size64KB (64K x 8)
RAM Size2.25K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeExternal
Program Memory TypeFLASH
EEPROM Size2K x 8
Core Processor80C51
Data ConvertersA/D 8x10b
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)3V ~ 5.5V
ConnectivityUART/USART
PeripheralsPOR, PWM, WDT
Supplier Device Package44-VQFP (10x10)
Number of I/O36
ProgrammableNot Verified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

Frequently Asked Questions

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

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Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

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