Microchip Technology ATMEGA128L-8AU

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 8MHz
Connectivity EBI/EMI, I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 53
Program Memory Size 128KB (64K x 16)
Program Memory Type FLASH
EEPROM Size 4K x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 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 64-TQFP (14x14)
Package / Case 64-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA128L-8AU is a high-performance 8-bit AVR microcontroller from Microchip, featuring 128KB flash memory and 4KB SRAM. It operates at 8MHz with a supply voltage range of 2.7V to 5.5V, making it versatile for low-power and industrial applications. The 64-TQFP package offers a compact footprint for space-constrained designs.

  • Low power consumption: 8MHz operation at 2.7V minimizes energy usage for battery-powered devices.
  • Large memory: 128KB flash and 4KB SRAM support complex firmware and data buffering.
  • Robust protection: Brown-out detect and watchdog timer enhance system reliability.
  • Wide temperature range: -40°C to 85°C ensures operation in harsh environments.

Industrial Control Systems

With 128KB flash and 4KB SRAM, it handles complex control loops and data logging in PLCs and motor controllers.

Battery-Powered Devices

Operating at 2.7V and 8MHz, it extends battery life in portable medical monitors and handheld meters.

Automotive Aftermarket

Wide temperature range (-40°C to 85°C) and WDT ensure reliable operation in engine control units and sensor hubs.

Smart Sensors

Integrated ADC and PWM enable precise signal conditioning for temperature, pressure, and flow sensors.

Home Automation

Low-power sleep modes and fast wake-up make it ideal for smart thermostats and security keypads.

Embedded Networking

External bus interface supports Ethernet controllers for IoT gateway applications.

Q: What is the operating voltage range?
A: 2.7V to 5.5V, suitable for battery and 5V systems.
Q: What is the maximum clock speed?
A: 8MHz, optimized for low power consumption.
Q: How much flash memory is available?
A: 128KB of in-system programmable flash.
Q: What package is available?
A: 64-TQFP, ideal for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it features an analog comparator for signal monitoring.
Base Product Number : ATMEGA128L
128KB flash 4KB SRAM 64-TQFP 8-bit 8-bit MCU AVR battery-powered industrial low power PWM WDT
Q: What is the operating voltage range?
A: 2.7V to 5.5V, suitable for battery and 5V systems.
Q: What is the maximum clock speed?
A: 8MHz, optimized for low power consumption.
Q: How much flash memory is available?
A: 128KB of in-system programmable flash.
Q: What package is available?
A: 64-TQFP, ideal for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it features an analog comparator for signal monitoring.