Microchip Technology

AT89LS51-16JU  

Microcontrollers

AT89LS51-16JU Description

The AT89LS51-16JU is a high-performance, low-power microcontroller from Microchip Technology, featuring an 8051 core processor and 4KB of FLASH program memory. This microcontroller is designed for a wide range of embedded applications, offering robust performance and reliability. The AT89LS51-16JU operates within a voltage range of 2.7V to 4V and supports an internal oscillator, making it suitable for various power-sensitive applications. With a clock speed of 16MHz, it provides efficient processing capabilities, ensuring smooth operation in demanding environments. The device includes 128 bytes of RAM, 32 I/O lines, and a Watchdog Timer (WDT) peripheral, enhancing its versatility and functionality. The AT89LS51-16JU is housed in a surface-mount package, specifically a 44-pin PLCC, making it ideal for compact and space-constrained designs. Although the product is now obsolete, its verified programmability by DigiKey ensures that it remains a reliable choice for legacy systems and specific applications where its unique features are required.

AT89LS51-16JU Features

• Core Processor: The AT89LS51-16JU is powered by an 8051 core processor, a widely recognized and reliable architecture known for its balance between performance and power efficiency.
• Program Memory: It features 4KB of FLASH memory (4K x 8), providing ample space for storing program instructions and data. This FLASH memory is reprogrammable, allowing for easy updates and modifications.
• Operating Voltage: The microcontroller operates within a voltage range of 2.7V to 4V, making it suitable for battery-powered and low-power applications.
• Clock Speed: With a clock speed of 16MHz, the AT89LS51-16JU delivers fast and efficient processing capabilities, ensuring smooth operation in various applications.
• RAM Size: It includes 128 bytes of RAM (128 x 8), providing sufficient temporary storage for variables and data during program execution.
• I/O Lines: The device offers 32 I/O lines, providing extensive connectivity options for interfacing with various peripherals and sensors.
• Peripherals: The inclusion of a Watchdog Timer (WDT) ensures system reliability by resetting the microcontroller in case of a software fault or system hang.
• Mounting Type: The surface-mount package (44-pin PLCC) makes the AT89LS51-16JU suitable for compact and space-constrained designs, facilitating easy integration into modern electronic systems.
• Oscillator Type: The internal oscillator simplifies the design by eliminating the need for an external clock source, reducing component count and board space.
• Connectivity: The AT89LS51-16JU supports UART/USART connectivity, enabling seamless communication with other devices and systems.
• Compliance and Status: The device is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and regulatory standards. It also has a Moisture Sensitivity Level (MSL) of 3 (168 Hours), making it suitable for standard manufacturing processes.

AT89LS51-16JU Applications

The AT89LS51-16JU is ideal for a variety of applications due to its robust performance, low power consumption, and extensive connectivity options. Some specific use cases include:

• Consumer Electronics: Ideal for applications such as remote controls, small appliances, and portable devices where low power consumption and compact design are critical.
• Industrial Control: Suitable for monitoring and control systems, where the microcontroller's I/O capabilities and reliability can be leveraged for real-time data processing and control.
• Automotive Systems: Can be used in vehicle control units, sensors, and other automotive applications that require a balance between performance and power efficiency.
• Medical Devices: Applicable in medical equipment that demands reliable operation and low power consumption, such as portable diagnostic devices and monitoring systems.
• Embedded Systems: The AT89LS51-16JU is well-suited for general-purpose embedded systems, providing a reliable and efficient solution for various control and monitoring tasks.

Conclusion of AT89LS51-16JU

The AT89LS51-16JU from Microchip Technology is a versatile and reliable microcontroller that offers a comprehensive set of features and performance benefits. Its 8051 core processor, 4KB FLASH memory, and 16MHz clock speed make it suitable for a wide range of applications, from consumer electronics to industrial control systems. The inclusion of 128 bytes of RAM, 32 I/O lines, and a Watchdog Timer further enhances its functionality and reliability. Despite being obsolete, the AT89LS51-16JU remains a valuable choice for legacy systems and specific applications where its unique features and verified programmability by DigiKey are essential. Its compliance with environmental and regulatory standards ensures it meets modern manufacturing requirements. Overall, the AT89LS51-16JU is a robust and efficient microcontroller that continues to deliver reliable performance in various embedded applications.

AT89LS51-16JU Documents

Download datasheets and manufacturer documentation for AT89LS51-16JU

PCN Assembly/Origin :

Mult Devices Assembly 04/Apr/2018      

Datasheets :

AT89LS51      

PCN Packaging :

Boxes 07/Dec/2016       Transfer to Microchip/Label/Pkg 5/Sep/2016      

Design Resources :

AT89LS51 Development Tool Selector      

PCN Obsolescence/ EOL :

EOL NOTICE 15/Jun/2023      

HTML Datasheet :

AT89LS51      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       Copper Bonding Wire 06/Nov/2014      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH