ATMEGA645V-8AI vs ATMEGA649-16AI Comparison
Detailed side-by-side comparison of ATMEGA645V-8AI by Microchip Technology and ATMEGA649-16AI 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
ATMEGA645V-8AI - 64KB AVR MCU, 8MHz, TQFP-64 | Microchip
ATMEGA645V-8AI ✓ ActiveMicrochip Technology
ATMEGA649-16AI - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip
ATMEGA649-16AI ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645V-8AI | ATMEGA649-16AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | — |
| Program Memory Size | 64 KB (32K x 16) ISP Flash | 64 KB (32K x 16) Flash, ISP, read-while-write |
| SRAM Size | 4 KB | 4 KB |
| EEPROM Size | 2 KB | 2 KB |
| Maximum Clock Frequency | 8 MHz | 16 MHz |
| Operating Voltage Range | 2.7 V to 5.5 V | — |
| Instructions | 130 (most single-cycle) | — |
| Throughput | up to 8 MIPS at 8 MHz | — |
| General Purpose I/O | 54 I/O lines (64-pin package) | 54 I/O lines (TQFP-64 configuration) |
| ADC | 8-channel, 10-bit | — |
| Timers/Counters | 3 flexible Timer/Counters | — |
| Debug Interface | JTAG (on-chip debug, Boundary-scan, programming) | — |
| Operating Temperature | -40C to +85C (industrial, I suffix) | -40C to +85C (industrial grade, per Atmel part number suffix 'I') |
| Package | 64-TQFP (14 x 14 mm) | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| In-System Programming | Yes (ISP Flash, Read-While-Write) | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant (per Microchip product listing) |
| Data Retention | [DATA_NEEDED: EEPROM/Flash data retention] | — |
| Core | — | AVR 8-Bit RISC |
| Core Size | — | 8-Bit |
| Instruction Set | — | 130 powerful instructions, most single-cycle |
| Working Registers | — | 32 x 8-bit general purpose |
| JTAG | — | Yes (on-chip debug and boundary scan) |
| LCD Controller | — | On-chip segment LCD driver |
| Supply Voltage Range | — | [DATA_NEEDED: supply voltage range] |
| Programming Interfaces | — | ISP (SPI), JTAG, ICSP via MPLAB SNAP |