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The AT89LP ISP Programmer is designed for programming Atmel/Microchip AT89LP series microcontrollers using the Four-Wire SPI programming interface.

Featuring a redesigned circuit board and improved firmware, this latest version programs up to 25 times faster than previous versions, with programming speeds up to 4 MHz.

Use it connected directly to a USB-equipped computer, or operate it as a standalone programmer for field programming, production, and on-site updates without a computer connection.

Key Features

• Supports all Atmel/Microchip AT89LP series mcu's (in the device list below)
• High-speed SPI programming (up to 4 MHz)
• Standalone operation, no PC required after setup
• USB-connected programming option
• Stores HEX files and configuration settings in non-volatile memory
• Retains programming data even when powered off
• Simple terminal-based setup
• Ideal for production programming and field updates
• Can restore fuses to factory state

Why This Programmer Was Created

The official Atmel programming software for AT89LP devices was designed to work with a PC parallel port. Since modern computers rarely include parallel ports, a more practical programming solution was needed. I work with AT89LP microcontrollers regularly and needed a programmer that was both reliable and convenient. In many situations, I needed to program multiple devices with the same firmware and configuration without carrying a computer to the work site. The AT89LP ISP Programmer was developed to make that process simple, fast, and reliable.

Getting started is simple:

• Connect the programmer to your computer.
• Load your HEX files and configure programming options using a terminal program.
• Disconnect from the computer or continue using USB mode.
• Install Jumper J1. Now the programmer is in standalone mode.
• Program your AT89LP devices whenever needed.

Once configured, the programmer stores the firmware and settings internally until they are changed. Please watch the video.

Programming Interface

The AT89LP ISP Programmer uses the standard Four-Wire SPI interface: MOSI MISO SCK RESET (Some AT89LP devices may also use the SS signal.)

Designed for Real-World Use

There are other AT89LP programmers available, but many are too expensive and may not support standalone operation.

This programmer focuses on simplicity and practicality:

• Load your files once
• Configure your options once
• Program devices quickly and repeatedly

It is an excellent solution for development, manufacturing, service work, and anyone programming multiple AT89LP devices.

Technical Support Included

When you purchase this item, a link to the user guide will be emailed to you. You are purchasing directly from the original designer (not a reseller). If you have questions or need assistance, you will receive direct technical support from the person who designed and built the programmer. My goal is to help you successfully program your AT89LP devices quickly and reliably.

The AT89LP ISP Programmer programs the following devices:

All International Orders will be shipped on Fridays as long as the order is received by Friday at 9 AM Eastern time.

All sales final. No refunds.