ATMEGA164 ATMEL [ATMEL Corporation], ATMEGA164 Datasheet - Page 20

• Manufacturer Part Number: ATMEGA164
• Description: 8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

44M1
20
K
R
ATmega164/324/644
2325 Orchard Parkway
San Jose, CA 95131
L
E2
Note: JEDEC Standard MO-220, Fig. 1 (SAW Singulation) VKKD-3.
Marked Pin# 1 ID
K
BOTTOM VIEW
b
TOP VIEW
D2
D
TITLE
5.20 mm Exposed Pad, Micro Lead Frame Package (MLF)
44M1, 44-pad, 7 x 7 x 1.0 mm Body, Lead Pitch 0.50 mm,
e
1
2
3
E
Pin #1 Corner
Option C
Option A
Option B
Pin #1
Chamfer
(C 0.30)
Pin #1
Notch
(0.20 R)
Pin #1
Triangle
SYMBOL
A
SIDE VIEW
A
A1
A3
b
D
D2
E
E2
e
L
K
0.80
0.18
5.00
5.00
0.59
0.20
COMMON DIMENSIONS
MIN
SEATING PLANE
(Unit of Measure = mm)
A1
A3
–
0.25 REF
7.00 BSC
7.00 BSC
0.50 BSC
NOM
0.90
0.02
0.23
5.20
5.20
0.64
0.26
DRAWING NO.
MAX
1.00
0.05
0.30
5.40
5.40
0.69
0.41
44M1
2593AS–AVR–06/05
NOTE
3/18/05
REV.
F