ATMEGA1284-AU vs ATMEGA128L-8AC Comparison
Detailed side-by-side comparison of ATMEGA1284-AU by Microchip Technology and ATMEGA128L-8AC 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
ATMEGA1284-AU - 8-Bit AVR MCU 128KB Flash 20MHz | Microchip (Tape & Reel)
ATMEGA1284-AU ✓ ActiveMicrochip Technology
ATMEGA128L-8AC - 8-bit AVR MCU, 128KB Flash, 8MHz, 64-TQFP | Microchip
ATMEGA128L-8AC ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1284-AU | ATMEGA128L-8AC |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | AVR RISC (enhanced 8-bit) |
| Program Memory Size | 128 KB ISP Flash (64K x 16) | — |
| SRAM | 16 KB | 4 KB |
| EEPROM | 4 KB | 4 KB |
| Maximum Clock Frequency | 20 MHz | 8 MHz |
| Throughput | Up to 20 MIPS at 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| Operating Voltage (Full 20 MHz) | 2.7 V to 5.5 V | — |
| General Purpose I/O Lines | 32 | — |
| General Purpose Working Registers | 32 | — |
| Instruction Set | 131 powerful instructions, most single-clock cycle | 133 instructions, mostly single-cycle |
| ADC | 8-channel, 10-bit successive approximation | 10-bit, 8-channel |
| USART Interfaces | 2 | — |
| Timer/Counters | 3 flexible timer/counters with compare modes and PWM | 4 (with compare and PWM) |
| Package | 44-pin TQFP (10x10 mm) | 64-pin TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel | — |
| Operating Temperature | -40C to +85C | 0 C to +70 C (commercial, 'C' suffix) |
| RoHS Status | Compliant | Compliant (lead-free 'AC' suffix) |
| Lifecycle Stage | Active | — |
| Program Memory (Flash) | — | 128 KB (64K x 16) |
| Operating Voltage (L-grade) | — | 2.7 V to 5.5 V |
| MIPS Throughput | — | Up to 8 MIPS at 8 MHz |
| General-Purpose I/O Pins | — | 53 |
| General-Purpose Registers | — | 32 |
| USART | — | 2 |
| Two-Wire Interface (I2C) | — | 1 (byte-oriented) |
| SPI | — | 1 |
| Watchdog Timer | — | Yes (with on-chip oscillator) |
| JTAG Debug Interface | — | Yes (IEEE 1149.1 compliant) |