ATmega164/324/644
ATmega644
Speed (MHz)(3)
Power Supply
Ordering Code
Package(1)
Operational Range
ATmega644V-10AU(2)
44A
10
1.8 - 5.5V
ATmega644V-10PU(2)
40P6
ATmega644V-10MU(2)
44M1
Industrial
(-40oC to 85oC)
ATmega644-20AU(2)
44A
20
2.7 - 5.5V
ATmega644-20PU(2)
40P6
ATmega644-20MU(2)
44M1
Industrial
(-40oC to 85oC)
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. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
3. For Speed vs. VCC see “Maximum speed vs. VCC” on page 310.
44A
40P6
44M1
Package Type
44-lead, Thin (1.0 mm) Plastic Gull Wing Quad Flat Package (TQFP)
40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44-pad, 7 x 7 x 1.0 mm body, lead pitch 0.50 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF)
17
2593AS–AVR–06/05