ATMEGA128A-AU vs ATMEGA128-16AU Comparison
Detailed side-by-side comparison of ATMEGA128A-AU by Microchip Technology and ATMEGA128-16AU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA128A-AU - 8-bit AVR MCU 128KB Flash 16MHz TQFP-64 | Microchip
ATMEGA128A-AU ✓ ActiveMicrochip Technology
ATMEGA128-16AU - 8-Bit AVR MCU, 128KB Flash, 16MHz | Microchip
ATMEGA128-16AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128A-AU | ATMEGA128-16AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Architecture | Enhanced RISC, 133 instructions | — |
| Max Clock Frequency | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16), In-System Programmable, read-while-write | 128 KB (64K x 16) In-System Programmable |
| EEPROM | 4 KB | 4 KB |
| SRAM | 4 KB | 4 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 4.5 V to 5.5 V (16 MHz speed grade) |
| General Purpose I/O | 53 lines | — |
| Working Registers | 32 general purpose | — |
| Timers/Counters | 4 flexible timer/counters with compare modes and PWM | — |
| Communication Interfaces | 2x USART, TWI (I2C), SPI | — |
| ADC | 8-channel, 10-bit | 8-channel 10-bit |
| Real-Time Counter | Yes (RTC) | — |
| Debug / Boundary Scan | JTAG (IEEE 1149.1) | — |
| Package | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Projected End of Life | 2048-10-03 (per distributor lifecycle data) | — |
| Core Architecture | — | 8-bit AVR RISC |
| Maximum Clock Frequency | — | 16 MHz |
| Throughput | — | 16 MIPS at 16 MHz (approx. 1 MIPS per MHz) |
| Debug Interface | — | JTAG for on-chip debugging |
| Temperature Grade | — | Industrial (IND TEMP) |
| External Memory Interface | — | Supported (up to 64 KB external data memory) |
| Serial Interfaces | — | 2x USART, SPI, Two-Wire Interface (I2C-compatible) |
| RoHS Status | — | Compliant (RoHS Y) |
| MSL Level | — | [DATA_NEEDED: MSL rating] |
| Operating Temperature Range | — | [DATA_NEEDED: exact min/max operating temperature] |