Microchip Technology AT89LP6440-20MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $17.00 | $17.00 |
| 15+ | $3.91 | $58.65 |
| 25+ | $3.83 | $95.75 |
| 50+ | $3.61 | $180.50 |
| 100+ | $3.19 | $319.00 |
| N+ | $0.64 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | 89LP |
| Packaging | Tray | NULL |
| 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 | Surface Mount |
| Supplier Device Package | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
The AT89LP6440-20MU is a high-performance 8051 microcontroller from Microchip Technology, delivering 20MHz operation with 64KB Flash and 4.25KB RAM. Its 2.4V to 3.6V supply range supports low-power embedded designs. The 44-VFQFN package integrates brown-out reset, POR, PWM, and WDT for robust industrial and consumer applications.
- High code density: 64KB Flash enables complex firmware in a single chip, reducing BOM cost.
- Low-voltage operation: 2.4V minimum allows direct battery power without regulators.
- Integrated safety features: Brown-out detect and WDT improve system reliability in noisy environments.
- Compact 44-VFQFN package: Saves PCB space for space-constrained designs.
Industrial Control Systems
The 8051 core at 20MHz with 64KB Flash provides deterministic response for PLCs and industrial timers, supported by PWM for actuator control.
Sensor Interface Modules
With 4.25KB RAM and multiple I/O, it can buffer data from temperature or pressure sensors and communicate via UART/SPI in building automation.
Motor Control for Small Appliances
PWM channels enable speed control of DC motors in fans or pumps, while brown-out detection ensures safe shutdown during voltage dips.
Portable Medical Monitors
Low 2.4V operation allows battery-powered glucose meters or pulse oximeters, with WDT for fail-safe operation in patient monitoring.
Automotive Aftermarket Modules
Operating from -40°C to 85°C, it suits car alarm systems or window lift controllers, using POR for reliable startup in harsh environments.
Smart Metering
The 64KB memory stores calibration data and logging for energy meters, while the 8051 core handles simple DSP tasks for power calculation.
- Q: What is the operating voltage range of the AT89LP6440-20MU?
- A: The AT89LP6440-20MU operates from 2.4V to 3.6V.
- Q: How much program memory does this MCU have?
- A: It features 64KB of Flash program memory.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a WDT along with brown-out detect/reset, POR, and PWM.
AT89LP6440-20MU.pdf
- Q: What is the operating voltage range of the AT89LP6440-20MU?
- A: The AT89LP6440-20MU operates from 2.4V to 3.6V.
- Q: How much program memory does this MCU have?
- A: It features 64KB of Flash program memory.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a WDT along with brown-out detect/reset, POR, and PWM.
