at42qt1040 ATMEL Corporation, at42qt1040 Datasheet - Page 15

• Manufacturer Part Number: at42qt1040
• Description: Qtouch? 4-key Sensor Ic
• Manufacturer: ATMEL Corporation

5.6
9524B–AT42–04/09
Mechanical Dimensions
E2
E
Package Drawing Contact:
[e-mail]
15
14
13
12
11
L
16
10
Pin 1 ID
BOTTOM VIEW
17
9
TOP VIEW
Pin #1 Chamfer
(C 0.3)
D2
18
D
8
19
7
TITLE
20M2, 20-pad, 3 x 3 x 0.85 mm Body, Lead Pitch 0.45 mm,
1.55 x 1.55 mm Exposed Pad, Thermally Enhanced
Plastic Very Thin Quad Flat No Lead Package (VQFN)
6
20
K
1
2
3
4
5
0.3 Ref (4x)
C0.18 (8X)
b
e
A
SYMBOL
A
A1
b
C
D
D2
E
E2
e
L
K
y
SIDE VIEW
A1
A1
C
0.75
0.00
0.17
2.90
1.40
2.90
1.40
0.35
0.20
0.00
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
–
GPC
ZFC
y
0.152
NOM
0.80
0.02
0.22
3.00
1.55
3.00
1.55
0.45
0.40
–
–
AT42QT1040
DRAWING NO.
MAX
0.85
0.05
0.27
3.10
1.70
3.10
1.70
0.45
0.08
20M2
–
–
NOTE
10/24/08
REV.
B
15