ATMEGA128A-AN vs ATMEGA128-16AI Comparison
Detailed side-by-side comparison of ATMEGA128A-AN by Microchip Technology and ATMEGA128-16AI 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-AN - 8-bit AVR MCU 128KB Flash 16MHz | Microchip
ATMEGA128A-AN ✓ ActiveMicrochip Technology
ATMEGA128-16AI - 8-bit AVR MCU 16MHz 128KB Flash | Microchip
ATMEGA128-16AI ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128A-AN | ATMEGA128-16AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | AVR 8-bit RISC | — |
| Flash Memory | 128 KB (In-System Programmable, read-while-write) | 128 KB (64K x 16) In-System Programmable |
| EEPROM | 4 KB | 4 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Frequency | 16 MHz | — |
| General Purpose I/O | 53 lines | — |
| Working Registers | 32 general purpose | — |
| Timers/Counters | 4 flexible Timer/Counters with compare modes and PWM | Two 8-bit, Two 16-bit |
| USART | 2 | — |
| Real Time Counter | Yes (RTC) | — |
| Package | TQFP-64 | 64-TQFP (14x14 mm) |
| Operating Temperature | -40C to +105C | -40C to +85C (industrial, per AI suffix) |
| Mounting Type | Surface Mount | Surface Mount |
| Supply Voltage | [DATA_NEEDED: supply voltage range] | — |
| ADC | [DATA_NEEDED: ADC resolution and channels] | 8-channel 10-bit |
| RoHS Status | Green (per LCSC/Mouser listing) | unknown |
| Core Architecture | — | AVR 8-bit RISC |
| CPU Speed | — | 16 MHz |
| Operating Voltage | — | 4.5 V to 5.5 V |
| MIPS Throughput | — | 16 MIPS at 16 MHz |
| Communication Interfaces | — | SPI, TWI (I2C), 2x USART |
| JTAG | — | On-chip JTAG for debugging and boundary scan |
| Instructions | — | 133 instructions, most single-cycle |
| External Memory Interface | — | XMEM up to 64 KB |