20
8161DS–AVR–10/09
ATmega48PA/88PA/168PA/328P
8.2
28M1
TITLE
DRAWING NO.
GPC
REV.
Packa
g
e Drawin
g
Contact:
packagedra
w
2
8
M1
ZB
V
B
2
8
M1,
28-pad, 4 x 4 x 1.0 mm Body, Lead Pitch 0.45 mm,
2.4 x 2.4 mm Exposed Pad, Thermally Enhanced
Plastic Very Thin Quad Flat No Lead Package (VQFN)
10/24/0
8
S
IDE VIEW
Pin 1 ID
BOTTOM VIEW
TOP VIEW
N
ote: The terminal #1 ID is a Laser-marked Feat
u
re
.
D
E
e
K
A1
C
A
D2
E2
y
L
1
2
3
b
1
2
3
0.45
COMMON DIMEN
S
ION
S
(Unit of Meas
u
re = mm)
S
YMBOL
MIN
NOM
MAX
NOTE
A
0.
8
0 0.90 1.00
A1
0.00 0.02 0.05
b
0.17
0.22
0.27
C
0.20 REF
D
3.95
4.00
4.05
D2
2.35
2.40
2.45
E
3.95
4.00
4.05
E2
2.35
2.40
2.45
e
0.45
L
0.35
0.40
0.45
y
0.00
–
0.0
8
K
0.20
– –
R 0.20
0.4 Ref
(4x)
