ATMEGA64-16AU vs ATMEGA645P-AU Comparison
Detailed side-by-side comparison of ATMEGA64-16AU by Microchip Technology and ATMEGA645P-AU 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
ATMEGA64-16AU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA64-16AU ✓ ActiveMicrochip Technology
ATMEGA645P-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645P-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA64-16AU | ATMEGA645P-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $7.23 | $4.60 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory Size | 64 KB Flash (32K x 16) | — |
| Flash Endurance | 10,000 write/erase cycles | — |
| SRAM | 4 KB | 4 KB |
| EEPROM | 2 KB | 2 KB |
| Maximum CPU Speed | 16 MHz | — |
| Throughput | Up to 16 MIPS at 16 MHz | — |
| General Purpose I/O Pins | 53 | — |
| General Purpose Working Registers | 32 | — |
| Operating Voltage | 4.5 V to 5.5 V (16 MHz); 2.7 V to 5.5 V (8 MHz) | — |
| Timer/Counters | 4 (two 8-bit, two 16-bit) with compare modes and PWM | — |
| USART Interfaces | 2 | — |
| Two-wire Serial Interface | 1 (byte oriented) | — |
| ADC | 8-channel, 10-bit | — |
| Real Time Counter | Yes (RTC) | — |
| Package | 64-TQFP (14x14 mm, 0.8 mm pitch) | 64-TQFP (14 x 14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +85 C | -40C to +85C (Industrial) |
| RoHS Status | Compliant (GREEN) | Compliant (Green package per Microchip listings) |
| JTAG Debug Interface | Yes (IEEE 1149.1 boundary-scan) | — |
| Flash Memory | — | 64 KB (32K x 16) ISP |
| Maximum Clock Frequency | — | 16 MHz |
| Supply Voltage Range | — | 2.5 V to 5.5 V |
| General Purpose I/O | — | 54 lines |
| Working Registers | — | 32 x 8-bit general purpose |
| Programming Interface | — | ICSP (In-Circuit Serial Programming) |
| Debug Support | — | debugWIRE via MPLAB SNAP |
| Low Power Technology | — | picoPower |
| Approximate Throughput | — | up to 16 MIPS at 16 MHz (1 MIPS/MHz) |