Microchip Technology

AT89LP51-20AU  

Microcontrollers

The AT89LP51-20AU is a low-power, high-performance microcontroller (MCU) manufactured by Microchip Technology. It is based on the 8051 microcontroller architecture and is designed for a wide range of embedded applications.

Description:

The AT89LP51-20AU is a 20-pin low-power CMOS 8-bit microcontroller that operates at a frequency of up to 12 MHz. It features 8 kB of in-system programmable Flash memory, 128 bytes of RAM, and 1 kB of EEPROM memory. The device also includes a watchdog timer, two 16-bit timer/counters, and a 4-channel 10-bit analog-to-digital converter (ADC).

Features:

1. Low-power consumption: The AT89LP51-20AU is designed for energy-efficient applications, with multiple low-power modes to reduce power consumption during idle periods.
2. In-system programmable Flash memory: The 8 kB of Flash memory allows for easy programming and updating of the firmware without removing the device from the system.
3. EEPROM memory: The 1 kB of EEPROM memory provides non-volatile storage for user data and calibration settings.
4. Analog-to-digital converter (ADC): The 4-channel 10-bit ADC allows for the conversion of analog signals to digital values, enabling the MCU to interface with various sensors and analog devices.
5. Timers and counters: The two 16-bit timer/counters can be used for timekeeping, pulse counting, or generating PWM signals.
6. Watchdog timer: The watchdog timer provides a reset function in case of software failure or system lock-up.

Applications:

The AT89LP51-20AU is suitable for a wide range of embedded applications, including:

1. Industrial control systems: The low-power consumption and robust features make it ideal for battery-powered or energy-harvesting applications.
2. Home automation: The AT89LP51-20AU can be used to control smart home devices, such as lighting, heating, and security systems.
3. Medical devices: The MCU's low-power features and non-volatile memory make it suitable for portable medical devices, such as glucose meters and blood pressure monitors.
4. Consumer electronics: The AT89LP51-20AU can be used in battery-powered devices like remote controls, toys, and portable gaming devices.
5. Automotive applications: The device can be used in automotive systems for monitoring and control, such as tire pressure monitoring systems and engine management systems.

In summary, the AT89LP51-20AU is a versatile, low-power microcontroller that offers a range of features suitable for various embedded applications. Its low-power consumption, in-system programmable Flash memory, EEPROM memory, and integrated peripherals make it an attractive choice for designers looking to develop energy-efficient and cost-effective solutions.

AT89LP51-20AU Documents

Download datasheets and manufacturer documentation for AT89LP51-20AU

PCN Assembly/Origin :

Assembly 03/Aug/2020      

Datasheets :

AT89LP51,52      

PCN Packaging :

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

Design Resources :

AT89LP51 Development Tool Selector      

HTML Datasheet :

AT89LP51,52      

PCN Design/Specification :

Marking Chgs 11/Jul/2017       Copper Bonding Wire 17/Oct/2013      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH