ATMEGA164A_11 ATMEL [ATMEL Corporation], ATMEGA164A_11 Datasheet - Page 27

• Manufacturer Part Number: ATMEGA164A_11
• Description: 8-bit Atmel Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

10.3
8272CS–AVR–06/11
44M1
K
Package Drawing Contact:
[e-mail]
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
e
ATmega164A/PA/324A/PA/644A/PA/1284/P
44M1, 44-pad, 7 x 7 x 1.0 mm Body, Lead
Pitch 0.50 mm, 5.20 mm Exposed Pad, Thermally
Enhanced Plastic Very Thin Quad Flat No
Lead Package (VQFN)
TITLE
1
2
3
E
Pin #1 Corner
Option B
Option C
Option A
Pin #1
Triangle
Pin #1
Chamfer
(C 0.30)
Pin #1
Notch
(0.20 R)
A
SIDE VIEW
SYMBOL
A
A1
A3
b
D
D2
E
E2
e
L
K
SEATING PLANE
A1
A3
0.80
0.18
6.90
5.00
6.90
5.00
0.59
0.20
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
–
GPC
ZWS
0.20 REF
0.50 BSC
NOM
0.90
0.02
0.23
7.00
5.20
7.00
5.20
0.64
0.26
DRAWING NO.
MAX
1.00
0.05
0.30
7.10
5.40
7.10
5.40
0.69
0.41
44M1
NOTE
9/26/08
REV.
H
27