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AT89C51RD2-RLTUM

Part Number: AT89C51RD2-RLTUM
Manufacturer: Microchip
Part Type: Integrated Circuits (ICs) > Embedded Processors and Controllers > Microcontrollers > AT89C51RD2-RLTUM
Qty Available:
Description: MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin VQFP Tray / IC MCU 8BIT 64KB FLASH 44VQFP

04/22/2026 – There are 515 pieces pieces of Part Number AT89C51RD2-RLTUM Available.

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MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin VQFP Tray / IC MCU 8BIT 64KB FLASH 44VQFP

Specifications

TYPE DESCRIPTION
Case/Package LQFP
Contact Plating Tin
Mount Surface Mount
Number of Pins 44
Access Time 60 µs
Core Architecture 8051
Data Bus Width 8 b
Frequency 60 MHz
Interface SPI, UART
Max Frequency 60 MHz
Max Operating Temperature 85 °C
Max Power Dissipation 1 W
Max Supply Voltage 5.5 V
Memory Size 64 kB
Memory Type FLASH
Min Operating Temperature -40 °C
Min Supply Voltage 2.7 V
Number of I/Os 34
Number of Programmable I/O 32
Number of SPI Channels 1
Number of Timers/Counters 3
Number of UART Channels 1
Oscillator Type External
Peripherals POR, PWM, WDT
RAM Size 2 kB
Schedule B 8542310000
Watchdog Timer Yes
Height 1.6 mm
Case/Package LQFP
Contact Plating Tin
Mount Surface Mount
Number of Pins 44
Access Time 60 µs
Core Architecture 8051
Data Bus Width 8 b
Frequency 60 MHz
Interface SPI, UART
Max Frequency 60 MHz
Max Operating Temperature 85 °C
Max Power Dissipation 1 W
Max Supply Voltage 5.5 V
Memory Size 64 kB
Memory Type FLASH
Min Operating Temperature -40 °C
Min Supply Voltage 2.7 V
Number of I/Os 34
Number of Programmable I/O 32
Number of SPI Channels 1
Number of Timers/Counters 3
Number of UART Channels 1
Oscillator Type External
Peripherals POR, PWM, WDT
RAM Size 2 kB
Schedule B 8542310000
Watchdog Timer Yes
Height 1.6 mm

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