Microchip Technology ATMEGA48PA-MMHR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Cut Tape (CT) | NULL
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 23
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
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 28-VQFN (4x4)
Package / Case 28-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA48PA-MMHR is a high-performance 8-bit AVR microcontroller from Microchip in a 28-VFQFN package. It operates from 1.8V to 5.5V at up to 20MHz. With 4KB flash, 512 bytes RAM, and integrated PWM, WDT, and Brown-out Reset, it is optimized for low-power IoT and industrial control applications.

  • Low-voltage operation (1.8V) reduces power consumption in portable devices.
  • Exposed pad package improves thermal dissipation for high-current loads.
  • 20MHz speed enables fast data processing and control loops.
  • AVR architecture provides efficient code execution in C.

IoT Sensor Nodes

1.8V operation and low-power sleep modes extend battery life in wireless sensors.

Motor Control for Drones

20MHz speed and PWM channels enable precise ESC control in quadcopters.

Smart Home Thermostats

4KB flash supports PID control algorithms for temperature regulation.

Industrial Data Loggers

WDT ensures reliable operation in remote monitoring systems.

Consumer Electronics

Compact VFQFN package fits in wearables and small handheld devices.

Automotive Aftermarket

85°C rating supports interior lighting and infotainment accessories.

Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V, supporting low-power and standard logic.
Q: What package is this variant?
A: It comes in a 28-VFQFN exposed pad package for thermal performance.
Q: How much flash memory does it have?
A: It provides 4KB of flash (2K x 16 words) for program storage.
Q: What is the temperature range?
A: It is rated for -40°C to 85°C, suitable for commercial and industrial use.
Base Product Number : ATMEGA48PA
20MHz 8-bit MCU ATmega AVR industrial IoT low-power PWM VFQFN-28
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V, supporting low-power and standard logic.
Q: What package is this variant?
A: It comes in a 28-VFQFN exposed pad package for thermal performance.
Q: How much flash memory does it have?
A: It provides 4KB of flash (2K x 16 words) for program storage.
Q: What is the temperature range?
A: It is rated for -40°C to 85°C, suitable for commercial and industrial use.