ATMEGA128-16MU vs ATMEGA2561-16MU Comparison
Detailed side-by-side comparison of ATMEGA128-16MU by Microchip Technology and ATMEGA2561-16MU 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
ATMEGA128-16MU - 8-Bit AVR MCU 16MHz 128KB Flash | Microchip
ATMEGA128-16MU ✓ ActiveMicrochip Technology
ATMEGA2561-16MU - 8-bit AVR MCU 256KB Flash 16MHz 64-QFN | Microchip
ATMEGA2561-16MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA128-16MU | ATMEGA2561-16MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.40 | $11.83 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| CPU Speed | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16) In-System Programmable | — |
| EEPROM | 4 KB | 4 KB |
| SRAM | 4 KB | 8 KB |
| GPIO Count | 53 I/O lines | — |
| ADC | 8-channel 10-bit | 8-channel, 10-bit |
| Timers/Counters | 4 with compare modes and PWM | — |
| USART | 2 | 4 channels |
| TWI (I2C) | Yes, byte-oriented Two-Wire Interface | 1 channel (byte-oriented) |
| SPI | Yes | 1 channel (Master/Slave) |
| JTAG | Yes, on-chip debugging and boundary scan | — |
| Package | 64-QFN (9x9 mm, MLF) | 64-VFQFN (9x9 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40 C to +85 C (industrial) |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Compatibility | 100% pin compatible with ATmega103 | — |
| Maximum CPU Frequency | — | 16 MHz |
| MIPS Throughput | — | 16 MIPS |
| Program Flash Memory | — | 256 KB (128K x 16) |
| Operating Voltage (VCC) | — | 4.5 V to 5.5 V |
| Programmable I/O Lines | — | 54 |
| General-Purpose Working Registers | — | 32 |
| Timer/Counters | — | 2x 8-bit + 4x 16-bit with PWM |
| Watchdog Timer | — | Yes, with separate on-chip oscillator |
| Analog Comparator | — | On-chip, with selectable hysteresis |
| JTAG Debug Interface | — | Yes (boundary-scan capable) |
| External Memory Interface (EBI/EMI) | — | Yes |
| MSL Level | — | [DATA_NEEDED: MSL level] |
| Lead-Free / RoHS | — | Yes / Compliant |