ATMEGA128A-ANR vs ATMEGA1281V-8MUR Comparison
Detailed side-by-side comparison of ATMEGA128A-ANR by Microchip Technology and ATMEGA1281V-8MUR 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-ANR - 8-bit AVR MCU 128KB Flash 16MHz | Microchip
ATMEGA128A-ANR ✓ ActiveMicrochip Technology
ATMEGA1281V-8MUR - 8-bit AVR MCU 128KB Flash 8MHz | Microchip
ATMEGA1281V-8MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128A-ANR | ATMEGA1281V-8MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16) | 128 KB (64K x 16), ISP |
| EEPROM | 4 KB | 4 KB |
| SRAM | 4 KB | 8 KB |
| General Purpose I/O | 53 I/O lines | 54 lines |
| Working Registers | 32 general purpose | — |
| Instructions | 135 instructions, most single-cycle | — |
| Timer/Counters | 4 flexible timer/counters | — |
| USART | 2 | — |
| ADC | 8-channel 10-bit | 8/16-channel, 10-bit |
| Interfaces | SPI, TWI (I2C-compatible), JTAG | — |
| External Memory Interface | Yes (WR, RD, ALE) | — |
| Package | 64-TQFP (14x14 mm) | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) |
| Mounting Type | Surface Mount | Surface Mount |
| Pin Compatibility | 100% compatible with ATmega103 | — |
| RoHS Status | Green (per Mouser) | Compliant (green package per FindIC listing) |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial) |
| Clock Speed | — | 8 MHz |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Instruction Set | — | 133 instructions, most single-cycle |
| Timers/Counters | — | Six flexible timers with compare modes and PWM |
| Serial USART | — | Four programmable USARTs |
| Serial Interfaces | — | SPI (master/slave), 2-wire serial (I2C-compatible) |
| Debug / Programming | — | JTAG on-chip debug, In-Circuit Serial Programming (ICSP) |
| Watchdog Timer | — | Programmable WDT with separate on-chip oscillator |
| Analog Comparator | — | On-chip analog comparator |
| Lifecycle Status | — | Active |