ATMEGA645P-AU vs ATMEGA6450P-AU Comparison
Detailed side-by-side comparison of ATMEGA645P-AU by Microchip Technology and ATMEGA6450P-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
ATMEGA645P-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645P-AU ✓ ActiveMicrochip Technology
ATMEGA6450P-AU - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA6450P-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645P-AU | ATMEGA6450P-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.60 | $5.90 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 64 KB (32K x 16) ISP | 64 KB (32K x 16) ISP Flash |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Frequency | 16 MHz | 20 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 | 32 general purpose |
| Package | 64-TQFP (14 x 14 mm) | 100-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | [DATA_NEEDED: operating temperature range] |
| Programming Interface | ICSP (In-Circuit Serial Programming) | — |
| Debug Support | debugWIRE via MPLAB SNAP | — |
| Low Power Technology | picoPower | picoPower |
| Approximate Throughput | up to 16 MIPS at 16 MHz (1 MIPS/MHz) | — |
| RoHS Status | Compliant (Green package per Microchip listings) | Compliant |
| I/O Lines | — | 54/69 general purpose I/O |
| Instruction Set | — | 130 powerful instructions, most single-cycle |
| Debug/Programming Interface | — | JTAG (boundary-scan, on-chip debug/programming) |
| Flash Read-While-Write | — | Yes |
| Operating Voltage Range | — | [DATA_NEEDED: operating voltage range] |
| Number of Pins | — | 100 |
| Timers/Counters | — | Three flexible timer/counters with compare modes |