ATMEGA644/V View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA644/V

8-bit AVR® Microcontroller with 16/32/64K Bytes In-System Programmable Flash

Atmel Corporation 

44M1

D

Marked Pin# 1 ID

E

TOP VIEW

K

L

D2

Pin #1 Corner

SEATING PLANE

A1

A3

A

SIDE VIEW

1

Option A Pin #1

Triangle

2

3

E2

Option B

Pin #1

Chamfer

(C 0.30)

K

b

e

BOTTOM VIEW

Option C

Pin #1

Notch

(0.20 R)

Note: JEDEC Standard MO-220, Fig. 1 (SAW Singulation) VKKD-3.

COMMON DIMENSIONS

(Unit of Measure = mm)

SYMBOL

A

A1

A3

b

D

D2

E

E2

e

L

K

MIN

0.80

–

0.18

5.00

5.00

0.59

0.20

NOM

0.90

0.02

0.25 REF

0.23

7.00 BSC

5.20

7.00 BSC

5.20

0.50 BSC

0.64

0.26

MAX

1.00

0.05

0.30

5.40

5.40

0.69

0.41

NOTE

TITLE

2325 Orchard Parkway 44M1, 44-pad, 7 x 7 x 1.0 mm Body, Lead Pitch 0.50 mm,

R San Jose, CA 95131 5.20 mm Exposed Pad, Micro Lead Frame Package (MLF)

3/18/05

DRAWING NO. REV.

44M1

F

20 ATmega164/324/644

2593AS–AVR–06/05

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