4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs

Datasheet

Revision 1.91 (10-13-06)

26

SMSC USB2227/USB2228

DATASHEET

Figure 7.2 USB2227/USB2228 124-Pin DQFN Package Outline

Notes:

1. All dimensions are in millimeter.

2. Position tolerance of each terminal and exposed pad is ± 0.05mm at maximum material condition. Dimensions

“b” applies to plated terminal and is measured between 0.20 and 0.25mm from the terminal tip.

3. Details of terminal #1 identifier are optional but must be located within the area indicated.

4. Rounded inner tips on terminals are optional.

Table 7.2 USB2227/USB2228 124-Pin DQFN Package Parameters

SYMBOL

MIN

NOM

MAX

NOTE

REMARK

A

~

0.80

0.85

~

OVERALL PKG HEIGHT

A1

0

0.01

0.05

~

STANDOFF

A2

~

0.65

0.70

~

MOLD THICKNESS

D/E

9.90

10.00

10.10

~

“X” / “Y” BODY SIZE

D1/E1

9.65

9.75

9.85

~

“X” / “Y” MOLD SIZE

D2/E2

SEE VARIATIONS

2

“X” / “Y” EXPOSED PAD SIZE

La

0.30

0.40

0.50

4

OUTER TERMINAL LENGTH

Lb

0.30

0.40

0.50

4

INNER TERMINAL LENGTH

b

0.18

~

0.22

2

TERMINAL WIDTH

e

0.50 BSC

~

TERMINAL PITCH

e1

0.65 BSC

~

OUTER-INNER ROW DISTANCE

D2 / E2 VARIATIONS

MIN

NOM

MAX

NOTE

CATALOG PART

6.75

6.90

7.05

2

USB2228