PRELIMINARY
CM1637
Mechanical Details (cont’d)
UDFN-16 Mechanical Specifications
Mechanical Package Diagrams
Dimensions for the CM1637 supplied in a 16-lead,
0.4mm pitch UDFN package are presented below.
D
PACKAGE DIMENSIONS
16 15 14 13 12 11 10 9
Package
UDFN
✝
JEDEC
No.
MO-229C
Pin 1
Marking
Leads
16
Millimeters
Nom
Inches
Nom
Dim.
1 2 3 4 5 6 7 8
TOP VIEW
Min
0.45
0.00
Max
Min
Max
A
A1
A3
b
0.50
0.55 0.018 0.020 0.022
0.05 0.000 0.001 0.002
0.005 REF
0.02
0.10
C
0.127 REF
0.20
0.15
3.20
2.70
1.25
0.30
0.25 0.006 0.008 0.010
3.40 0.126 0.130 0.134
2.90 0.106 0.110 0.114
1.45 0.049 0.053 0.057
0.50 0.012 0.016 0.020
0.016 BSC
0.08
C
D
3.30
D2
E
2.80
A1
A3
E2
SIDE VIEW
1.35
A
E2
e
0.40
16X
0.40 BSC
M
0.10
C A B
e
b
K
0.20
0.15
0.008
Pin 1
Locator
1
2
3
4
5
6
7
8
9
L
0.25
0.35 0.006 0.010 0.014
3000 pieces
# per
tape and
reel
C0.2
GND PAD
16 15 14 13 12 11 10
D2
K
Controlling dimension: millimeters
L
✝
This package is compliant with JEDEC standard MO-229C with the
BOTTOM VIEW
exception of the "D", "D2", "E", "E2", "K" and "L" dimensions as
called out in the table above.
Recommend PCB Land Pattern
Dimensions for 16-Lead, 0.4mm pitch
UDFN package
0.40
0.30
2.20
Note: Dimensions in millimeters. Drawing not to scale.
© 2006 California Micro Devices Corp. All rights reserved.
16
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
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www.cmd.com 09/20/06
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
