Microchip Technology ATMEGA4809-MFR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.83 | $1.83 |
| 15+ | $1.78 | $26.70 |
| 25+ | $1.74 | $43.50 |
| 50+ | $1.64 | $82.00 |
| 100+ | $1.45 | $145.00 |
| N+ | $0.29 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | megaAVR® 0, Functional Safety (FuSa) |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| Number of I/O | 41 |
| Program Memory Size | 48KB (24K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 6K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 16x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-UQFN (6x6) |
| Package / Case | 48-UFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA4809-MFR is a high-temperature AVR 8-bit microcontroller in a 48-UFQFN package. It features 48KB flash, 6KB SRAM, and a 20MHz core, operating from 1.8V to 5.5V. Designed for extended temperature ranges, it is a robust choice for automotive and industrial control systems.
- Extended Temperature Range (-40°C to 125°C): Reliable in harsh automotive and industrial environments.
- Large Memory (48KB Flash, 6KB RAM): Supports complex applications without external memory.
- Wide Voltage Range (1.8V-5.5V): Flexible power supply design for mixed-voltage systems.
- AVR Core Efficiency: Single-cycle instructions and 20MHz speed for responsive control.
Automotive Body Control Modules
The 125°C rating and robust brown-out detection make it reliable for in-cabin lighting and window control.
Industrial Motor Drives
With 20MHz speed and multiple PWM channels, it can control three-phase induction motors with sensorless algorithms.
Smart Grid Meters
Its 48KB flash and 6KB RAM support complex metering firmware for energy monitoring.
Robotics Controllers
The rich GPIO and timer set allow precise servo control and sensor fusion in educational robots.
HVAC Zone Controllers
Wide voltage range and high temperature tolerance suit rooftop HVAC units exposed to harsh conditions.
- Q: What is the maximum operating temperature?
- A: This version is rated for -40°C to 125°C, suitable for automotive and industrial environments.
- Q: What is the core architecture?
- A: It uses the AVR 8-bit core running at up to 20MHz.
- Q: How much program memory does it have?
- A: It provides 48KB of flash memory organized as 24K x 16 bits.
- Q: What package is this part?
- A: It is in a 48-UFQFN package with exposed pad for thermal dissipation.
- Q: What is the maximum operating temperature?
- A: This version is rated for -40°C to 125°C, suitable for automotive and industrial environments.
- Q: What is the core architecture?
- A: It uses the AVR 8-bit core running at up to 20MHz.
- Q: How much program memory does it have?
- A: It provides 48KB of flash memory organized as 24K x 16 bits.
- Q: What package is this part?
- A: It is in a 48-UFQFN package with exposed pad for thermal dissipation.

ATMEGA4809-MFR.pdf