2549K-AVR-01/07 is a high performance, low power AVR® 8-bit microcontroller
The ATmega640/V is a low‑power 8‑bit AVR microcontroller featuring an enhanced RISC core, up to 64 KB of flash memory, 4 KB EEPROM, and 8 KB SRAM. It offers up to 86 programmable I/O lines, multiple timer/counters, a 10‑bit ADC, and several USARTs, making it suitable for a wide range of embedded applications.
The datasheet includes detailed pin‑out diagrams for QFN, TQFP and CBGA packages, electrical characteristics such as active‑mode current of 510 pA at 1 MHz/1.8 V, and operating temperature range from –40 °C to 85 °C. It also lists configuration options, port functions, and package information for designers.
| Flash memory | 64 KB (up to 256 KB depending on variant) |
|---|---|
| EEPROM | 4 KB |
| SRAM | 8 KB |
| Programmable I/O lines | 86 |
| ADC resolution | 10‑bit |
| Timer/Counters | Six flexible Timer/Counters |
| Operating temperature range | -40 °C to 85 °C (Industrial) |
| Active‑mode current consumption | 510 pA at 1 MHz, 1.8 V |
| Package options | 64‑pad QFN/MLF, 64‑lead TQFP, 100‑lead TQFP, 100‑ball CBGA |
It provides up to 64 KB of In‑System Programmable Flash (larger variants up to 256 KB).
The device offers 86 programmable I/O lines.
It is rated for industrial temperatures from –40 °C to 85 °C.
The active‑mode current is 510 pA under those conditions.