Atmel AT89LP6440-20PU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $23.00 | $23.00 |
| 15+ | $5.29 | $79.35 |
| 25+ | $5.18 | $129.50 |
| 50+ | $4.89 | $244.50 |
| 100+ | $4.31 | $431.00 |
| N+ | $0.86 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Atmel |
| Product Series | 89LP |
| Packaging | Bulk | |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 38 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 8K x 8 |
| RAM Size | 4.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 3.6V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Through Hole |
| Supplier Device Package | 40-PDIP |
| Package / Case | 40-DIP (0.600", 15.24mm) |
| ROHS |
The Atmel AT89LP6440-20PU is a classic 8051-based 8-bit microcontroller running at 20MHz. It provides 64KB of flash and 4.25KB of RAM, with a supply range of 2.4V to 3.6V. Featuring Brown-out Detect/Reset, POR, PWM, and WDT, it operates from -40°C to 85°C. The 40-DIP package is perfect for through-hole designs and prototyping.
- Large Flash Memory: 64KB supports complex applications without external storage.
- Through-Hole Package: 40-DIP is easy to solder and replace, ideal for prototyping.
- Familiar 8051 Architecture: Extensive development resources and legacy code compatibility.
- Integrated Safety Features: Brown-out detection and WDT enhance reliability.
Legacy Industrial Controllers
The 40-DIP package allows easy prototyping and replacement in existing 8051-based systems, with 64KB flash for large control programs.
Educational Development Boards
The DIP package and 8051 architecture make it ideal for teaching embedded systems, with PWM for motor labs.
Medical Device Interfaces
With 2.4V operation and Brown-out detection, it suits battery-powered diagnostic tools requiring reliable reset behavior.
Point-of-Sale Terminals
The 4.25KB RAM supports buffering of transaction data, while the 8051 core handles communication protocols.
Automotive Aftermarket Accessories
Operating from -40°C to 85°C, it controls add-on lighting or alarm systems, with WDT ensuring no lockups.
Home Automation Hubs
The 64KB flash stores complex automation rules, while PWM drives dimmers and the DIP package simplifies board layout.
- Q: What core does the AT89LP6440-20PU use?
- A: It uses the 8051 core, running at up to 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.4V to 3.6V.
- Q: How much flash and RAM are included?
- A: It has 64KB of flash and 4.25KB of RAM.
- Q: What package is available?
- A: It comes in a 40-DIP package.
- Q: What are the key features?
- A: It includes Brown-out Detect/Reset, POR, PWM, and WDT.
- Q: What core does the AT89LP6440-20PU use?
- A: It uses the 8051 core, running at up to 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.4V to 3.6V.
- Q: How much flash and RAM are included?
- A: It has 64KB of flash and 4.25KB of RAM.
- Q: What package is available?
- A: It comes in a 40-DIP package.
- Q: What are the key features?
- A: It includes Brown-out Detect/Reset, POR, PWM, and WDT.

AT89LP6440-20PU.pdf