35. Ordering Information
35.1 ATmega640
Speed (MHz)(2)
Power Supply
Ordering Code
Package(1)(3)
Operation Range
ATmega640V-8AU
ATmega640V-8CU
100A
8
1.8 - 5.5V
Industrial (-40°C to 85°C)
100C1
ATmega640-16AU
ATmega640-16CU
100A
16
2.7 - 5.5V
Industrial (-40°C to 85°C)
100C1
Notes: 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information
and minimum quantities.
2. See “Speed Grades” on page 372.
3. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
Package Type
64A
64-lead, Thin (1.0 mm) Plastic Gull Wing Quad Flat Package (TQFP)
64-pad, 9 x 9 x 1.0 mm Body, Quad Flat No-lead/Micro Lead Frame Package (QFN/MLF)
100-lead, Thin (1.0 mm) Plastic Gull Wing Quad Flat Package (TQFP)
100-ball, Chip Ball Grid Array (CBGA)
64M2
100A
100C1
422
ATmega640/1280/1281/2560/2561
2549L–AVR–08/07