Model No: ATMEGA128L-8AU
Microchip Technology ATMEGA128L-8AU
Manufacturer: Microchip Technology
SEMICON NO.: ATMEGA128L-8AU
Package: 64-TQFP
Stock: In stock
Description: Microcontroller 8-bit CMOS 10-bit ADC 8 MHz
SEMICON NO.: ATMEGA128L-8AU
Package: 64-TQFP
Stock: In stock
Description: Microcontroller 8-bit CMOS 10-bit ADC 8 MHz
Quantity :
| Mfr | Microchip Technology |
| Product Family | AVR® ATmega |
| Device Type | 8-bit CMOS Microcontroller (MCU) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Maximum CPU Speed | 8 MHz |
| Program Memory (Flash) | 128 KB (64K x 16) |
| RAM (SRAM) | 4 KB (4K x 8) |
| EEPROM | 4 KB (4K x 8) |
| Analog-to-Digital Converter | 8-channel, 10-bit ADC |
| Analog Comparator | 1 |
| General-Purpose I/O Pins | 53 |
| Operating Voltage (Vcc/Vdd) | 2.7 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Package | 64-TQFP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
ATMEGA128L-8AU Microcontroller 64-TQFP MCU
The ATMEGA128L-8AU is a Microchip (formerly Atmel) 8-bit AVR RISC microcontroller housed in a 64-pin TQFP (14 mm x 14 mm) surface-mount package. As the low-voltage (L) 8 MHz (8) member of the ATmega128 family, it integrates 128 KB of in-system self-programmable Flash organized as 64 K x 16, 4 KB of EEPROM, and 4 KB of internal SRAM, while drawing its core power from a wide 2.7 V to 5.5 V supply that makes the device equally at home in 3.3 V and 5 V embedded systems. With 53 programmable I/O lines, an internal calibrated RC oscillator, and a rich set of interfaces that include EBI/EMI, I2C (TWI), SPI, and two USARTs, the ATMEGA128L-8AU delivers a well-balanced combination of code density, data storage, and peripheral connectivity for control-centric designs that do not need a 32-bit core.
Typical application scenarios for the ATMEGA128L-8AU span industrial automation, home and building control, automotive subsystems, medical devices, and IoT endpoints where deterministic 8-bit control, ample Flash, and low power draw matter more than raw clock speed. It is widely deployed in industrial control systems, smart-home and home-automation products, intelligent instrumentation, data-acquisition nodes, wireless sensor networks, battery-powered monitoring devices, and portable data loggers that benefit from the device's 2.7 V to 5.5 V range and multiple sleep modes. Also, it a natural fit for PLC-like control units, smart metering, security panels, motor-control modules, and educational or prototyping platforms built around the classic AVR toolchain.
Alternative industrial microcontrollers
1. ATMEGA128-16AU: Same 64-TQFP, 128 KB Flash, 4 KB EEPROM/SRAM AVR core but specified for 4.5 V to 5.5 V and 16 MHz operation, ideal when a higher clock speed and 5 V-only rail are acceptable.
2. ATMEGA128L-8MU: Functionally identical 8-bit AVR with 128 KB Flash and 2.7 V to 5.5 V/8 MHz rating, but in a 64-pad MLF/QFN package for space-constrained surface-mount layouts.
3. ATMEGA1281-16AU: Higher-integration AVR with 128 KB Flash, expanded SRAM, and richer peripheral set in a 64-TQFP body, suited to designs that want more headroom while staying within the AVR ecosystem.
4. ATMEGA64L-8AU: Lower-cost, lower-memory (64 KB Flash, 4 KB EEPROM, 4 KB SRAM) 8-bit AVR in a 64-TQFP package, perfect for cost-sensitive applications that do not need the full 128 KB program space.
The ATMEGA128L-8AU is a Microchip (formerly Atmel) 8-bit AVR RISC microcontroller housed in a 64-pin TQFP (14 mm x 14 mm) surface-mount package. As the low-voltage (L) 8 MHz (8) member of the ATmega128 family, it integrates 128 KB of in-system self-programmable Flash organized as 64 K x 16, 4 KB of EEPROM, and 4 KB of internal SRAM, while drawing its core power from a wide 2.7 V to 5.5 V supply that makes the device equally at home in 3.3 V and 5 V embedded systems. With 53 programmable I/O lines, an internal calibrated RC oscillator, and a rich set of interfaces that include EBI/EMI, I2C (TWI), SPI, and two USARTs, the ATMEGA128L-8AU delivers a well-balanced combination of code density, data storage, and peripheral connectivity for control-centric designs that do not need a 32-bit core.
Typical application scenarios for the ATMEGA128L-8AU span industrial automation, home and building control, automotive subsystems, medical devices, and IoT endpoints where deterministic 8-bit control, ample Flash, and low power draw matter more than raw clock speed. It is widely deployed in industrial control systems, smart-home and home-automation products, intelligent instrumentation, data-acquisition nodes, wireless sensor networks, battery-powered monitoring devices, and portable data loggers that benefit from the device's 2.7 V to 5.5 V range and multiple sleep modes. Also, it a natural fit for PLC-like control units, smart metering, security panels, motor-control modules, and educational or prototyping platforms built around the classic AVR toolchain.
Alternative industrial microcontrollers
1. ATMEGA128-16AU: Same 64-TQFP, 128 KB Flash, 4 KB EEPROM/SRAM AVR core but specified for 4.5 V to 5.5 V and 16 MHz operation, ideal when a higher clock speed and 5 V-only rail are acceptable.
2. ATMEGA128L-8MU: Functionally identical 8-bit AVR with 128 KB Flash and 2.7 V to 5.5 V/8 MHz rating, but in a 64-pad MLF/QFN package for space-constrained surface-mount layouts.
3. ATMEGA1281-16AU: Higher-integration AVR with 128 KB Flash, expanded SRAM, and richer peripheral set in a 64-TQFP body, suited to designs that want more headroom while staying within the AVR ecosystem.
4. ATMEGA64L-8AU: Lower-cost, lower-memory (64 KB Flash, 4 KB EEPROM, 4 KB SRAM) 8-bit AVR in a 64-TQFP package, perfect for cost-sensitive applications that do not need the full 128 KB program space.
