 2011 - 2015 Microchip Technology Inc.

DS00001725D-page 13

USB3740B

FIGURE 6-5:

10-PIN, 1.6MM X 2.1MM QFN PACKAGE DIMENSIONS

Microchip Technology Drawing C04-379A Sheet 2 of 2

Number of Terminals

Overall Height

Terminal Width

Overall Width

Overall Length

Terminal Length

Terminal Thickness

Pitch

Standoff

Units

Dimension Limits

A1

A

b

D

(A3)

e

L1

E

N

0.50 BSC

0.127 REF

0.35

0.20

0.50

0.00

0.25

1.60 BSC

0.40

0.55

0.02

2.10 BSC

MILLIMETERS

MIN

NOM

10

0.45

0.30

0.60

0.05

MAX

K2

-

0.20

-

REF: Reference Dimension, usually without tolerance, for information purposes only.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

1.

2.

3.

Notes:

Pin 1 visual index feature may vary, but must be located within the hatched area.

Package is saw singulated

Dimensioning and tolerancing per ASME Y14.5M

Terminal Clearance

For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

Note:

Terminal Length

L2

0.60

0.65

0.70

K1

-

0.20

-

Terminal Clearance

10-Lead Ultra Thin Plastic Quad Flat, No Lead Package (3V) - 1.6x2.1 mm Body [UQFN]

Chip-On-Lead