ATMEGA1281V ATMEL [ATMEL Corporation], ATMEGA1281V Datasheet - Page 28

• Manufacturer Part Number: ATMEGA1281V
• Description: 8-bit Atmel Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

10.4
2549NS–AVR–05/11
64M2
K
R
Notes: 1. JEDEC Standard MO-220, (SAW Singulation) Fig. 1, VMMD.
2325 Orchard Parkway
San Jose, CA 95131
L
E2
2. Dimension and tolerance conform to ASMEY14.5M-1994.
Marked Pin# 1 ID
K
BOTTOM VIEW
b
TOP VIEW
D2
D
TITLE
64M2, 64-pad, 9 x 9 x 1.0 mm Body, Lead Pitch 0.50 mm,
7.65 mm Exposed Pad, Micro Lead Frame Package (MLF)
e
1
2
3
E
Pin #1 Corner
Option C
Option A
Option B
ATmega640/1280/1281/2560/2561
Pin #1
Chamfer
(C 0.30)
Pin #1
Notch
(0.20 R)
Pin #1
Triangle
SYMBOL
A
SIDE VIEW
A3
b
D
D2
E
E2
e
L
K
A
A1
0.80
0.18
8.90
7.50
8.90
7.50
0.35
0.20
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
–
A1
A3
C
0.08
SEATING PLANE
0.50 BSC
0.20 REF
NOM
0.25
9.00
7.65
9.00
7.65
0.40
0.90
0.02
0.27
C
DRAWING NO.
MAX
0.30
9.10
7.80
9.10
7.80
0.45
0.40
1.00
0.05
64M2
2010-10-20
NOTE
REV.
E
28