ATMEGA164PA_09 Datasheet, PDF (24/30 Pages) ATMEL Corporation – 8-bit Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash

9.4 44MC
Pin 1 ID
D
ATmega164PA/324PA/644PA/1284P
C
SIDE VIEW
y
E
TOP VIEW
A1
A
eT/2
A19
A24
eR ^B16
A18
B15
D2
B11
A13
B10
A12
L
B20
A1
B1
b
R0.20 ^0.40
eT
B5
A6
B6
A7
E2
L
L
BOTTOM VIEW
Note: 1. The terminal #1 ID is a Laser-marked Feature.
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
A
0.80
0.90
1.00
A1
0.00
0.02 0.05
b
0.18
0.23
0.30
C
0.20 REF
D
4.90
5.00
5.10
D2
2.55
2.60
2.65
E
4.90
5.00
5.10
E2
2.55
2.60 2.65
eT
–
0.70
–
eR
–
0.40
–
K
0.45
–
–
L
0.30
0.35
0.40
y
0.00
–
0.075
Package Drawing Contact:
[e-mail]
TITLE
44MC, 44QFN (2-Row Staggered), 5 x 5 x 1.00 mm Body,
2.60 x 2.60 mm Exposed Pad, Quad Flat No Lead Package
9/13/07
DRAWING NO. REV.
44MC
A
24
8152GS–AVR–11/09