Production Data
WM8321
31 PACKAGE DIAGRAM
FL: 81 PIN QFN PLASTIC PACKAGE 8 X 8 X 0.85 mm BODY
DM082.B
D2
eee
C
B
A
DETAIL D
PIN 1
A
D
B
CORNER
A11
B11
D3
A10
B10
A9
B9
A8
A7
A6
A5
A4
A3
A2
A1
C1
3.675
3.175
2.675
2.025
3.675
3.175
B8
B7
B6
B5
B4
B3
B2
B1
D1
3.025
D2
2.675
2.375
2.025
1.725
E1
G1
DETAIL A
DETAIL B
F3
F2
DETAIL C
F1
H1
EXPOSED
GND
PADDLE
H3
K3
H2
K2
1.375
0.725
1.375
1.075
J1
L1
K1
M1
0.725
0.075
0
0.260
0.075
M3
N3
M2
N2
E2
E
eee
C B A
0.575
1.225
N1
R1
0.575
P1
0.990
1.225
R3
U3
V4
R2
U2
V3
1.875
2.525
T1
V1
1.805
1.875
U1
V2
2.525
C
C
W12
Y12
W11
Y11
W10
W9
W8
W7
W6
W5
W4
W3
Y3
W2
Y2
W1
Y1
3.175
3.675
3.175
3.675
Y10
Y9
Y8
Y7
Y6
Y5
Y4
aaa
C
BOTTOM VIEW
TOP VIEW
68x
4x
L
L2
M
M
ddd
C
A
B
ddd
C A B
M
M
ddd
ddd
b
C
A
B
b
C A B
bbb
C
DETAIL A
DETAIL C
(A3)
A2
A
8x
A
L1
Ø0.25±0.03
M
ddd
C
B
M
ddd
C
A B
A1
C
M
b
ddd
C A B
SECTION C-C
ccc
C
DETAIL B
DETAIL D
Symbols
Dimensions (mm)
MIN
NOM
---
MAX
NOTE
A
A1
A2
A3
b
---
0.85
0.08
0.71
0.02
0.64
0.12
0.22
0.05
0.675
0.13
0.25
0.14
0.28
D
8 BSC
5.60
8 BSC
5.60
0.25
0.4
D2
E
5.55
5.65
E2
L
5.55
0.22
0.37
0.47
5.65
0.28
0.43
L1
0.53
L2
0.5
Tolerances of Form and Position
aaa
bbb
ccc
ddd
eee
REF
0.10
0.20
0.05
0.08
0.10
JEDEC, MO-220
NOTES:
1. ALL DIMENSIONS ARE IN MILLIMETRES
2. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JESD 95-1 SPP-002.
3. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
4. THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE.
PD, February 2012, Rev 4.0
251
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
