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Microchip Technology AT80C51RA2-RLTUL Microcontroller, Microprocessor, FPGA Modules

IC MCU 8BIT ROMLESS 44VQFP

84Microchip Technology44-LQFPRoHS
AT80C51RA2-RLTUL 44-LQFP package illustration

Same model may have multiple batches, images only for reference.

AT80C51RA2-RLTUL
Part Number (MPN)
AT80C51RA2-RLTUL
Detailed Description
IC MCU 8BIT ROMLESS 44VQFP
Package
44-LQFP
Key Features
Package / Case: 44-LQFP; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
PDF AT80C51RA2-RLTUL Datasheet
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Technical Specifications

Microchip Technology AT80C51RA2-RLTUL Microcontroller, Microprocessor, FPGA Modules technical specifications.

General

RAM Size
512 x 8
RoHS
Yes
Number of Pins
44
Package / Case
44-LQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Obsolete
Peripherals
POR, PWM, WDT
Number of I/O
32

Alternate Parts Comparison (AT80C51RA2-RLTUL vs AT89C51CC01UAT-RLRUM vs AT89C51CC01CAT-RLTUM vs AT89C51CC01UAT-RLTUM)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case44-LQFP44-LQFP44-LQFP44-LQFP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.7V ~ 5.5V3V ~ 5.5V3V ~ 5.5V3V ~ 5.5V
Number of Pins44444444
Core Processor80C5180C5180C5180C51
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size512 x 81.25K x 81.25K x 81.25K x 8
RoHSYesYesYesYes
Lifecycle StatusObsoleteActiveActiveActive
ConnectivityUART/USARTCANbus, UART/USARTCANbus, UART/USARTCANbus, UART/USART
I2C00 -I2C0 -I2C0 -I2C
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

More Parts in Microcontrollers

Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.