Manufacturer: Microchip Technology
Win Source Part Number: 729627-AT89LP51RD2-2
Packaging: Tube
Mounting Style: SMD
Core Processor: 8051
Speed: 20MHz
Connectivity: EBI/EMI, I2C, SPI, UART/USART
Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Size: 64KB
Program Memory Type: FLASH
Data Converters: A/D 7x10b
Supply Voltage: 2.4V ~ 5.5V
Family Name: AT89LP51RD2
Categories: Integrated Circuits
Supplier Device Package: 44-PLCC (16.6x16.6)
Temperature Range - Operating: -40°C ~ 85°C
Manufacturer Package: 44-LCC
Alternative Parts (Cross-Reference): IA8X44PLC44IR3; IA8X44PLC44I3; IA8X44-PLC44I-R-P03;
Introduction Date: May 02, 1997
ECCN: EAR99
Country of Origin: Thailand
Estimated EOL Date: 2026
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 56 pct.
Supply and Demand Status: Limited
Family Part Number: AT89LP51RD2
Manufacturer Pack Quantity: 27
MSL Level: 2 (1 Year)
Data Bus Width: 8-Bit
The number of I/O: 40
Date RAM Size: 2.25K x 8
8051 89LP Microcontroller IC 8-Bit 20MHz 64KB (64K x 8) FLASH 44-PLCC (16.6x16.6)
IC MCU 8BIT 64KB FLASH 44PLCC Product overview: AT89LP51RD2-20JU from Microchip Technology is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 8-bit, 8BIT, 64KB. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 8-bit, 8BIT, 64KB, Embedded Microcontroller MCU. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-AT89LP51RD2-20JU
IC MCU 8BIT 64KB FLASH 44PLCC
IC MCU 8BIT 64KB FLASH 44PLCC
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
IC MCU 8BIT 64KB FLASH 44PLCC
8051 89LP Microcontroller IC 8-Bit 20MHz 64KB (64K x 8) FLASH 44-PLCC (16.6x16.6)
| Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | ODG (Origin Data Global) | Lingto Electronic Limited | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|---|
| Product Category | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) |
| Product Number | 729627-AT89LP51RD2-20JU | AT89LP51RD2-20JU-ND | 685-AT89LP51RD2-20JU | AT89LP51RD2-20JU | AT89LP51RD2-20JU | AT89LP51RD2-20JU | AT89LP51RD2-20JU | AT89LP51RD2-20JU |
| Product Name | Embedded - Embedded - Microcontrollers - AT89LP51RD2-20JU | Microcontrollers | 8-bit 8BIT 64KB Embedded Microcontroller MCU | Microcontrollers | Embedded - Microcontrollers | 8-bit Microcontrollers - MCU | Integrated Circuits (ICs) - Embedded - Microcontrollers | Microcontrollers |
| Data Bus | 8 Bit | 8 Bit | 8 Bit | 8 Bit | 8 Bit; 8-Bit | 8 Bit | 8 Bit; 8-Bit | |
| Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | ||
| RAM | 64 KB | 2.25 KB | 2.25 KB | 2.25 KB | 2.25 KB | 2.25 KB | ||
| ROM Type | Flash; FLASH | Flash | Flash; FLASH | Flash; FLASH | ||||
| Supply Voltage | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 5.5 volts |
