Datasheet

15
2593OS–AVR–02/12
ATmega644
6. Ordering Information
6.1 ATmega644
Note: 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. V
CC
see ”Speed Grades” on page 318.
Speed (MHz)
(3)
Power Supply Ordering Code
(2)
Package
(1)
Operational Range
10 1.8V - 5.5V
ATmega644V-10AU
ATmega644V-10PU
ATmega644V-10MU
44A
40P6
44M1
Industrial
(-40
o
C to 85
o
C)
20 2.7V - 5.5V
ATmega644-20AU
ATmega644-20PU
ATmega644-20MU
44A
40P6
44M1
Industrial
(-40
o
C to 85
o
C)
Package Type
44A 44-lead, Thin (1.0 mm) Plastic Gull Wing Quad Flat Package (TQFP)
40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44M1 44-pad, 7 × 7 × 1.0 mm body, lead pitch 0.50 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF)