4

SAM0632a-013106

ESS Technology, Inc.

ES6430 PRODUCT BRIEF

QFP MECHANICAL DIMENSIONS

QFP MECHANICAL DIMENSIONS

The mechanical dimensions for the ES6430 QFP part are shown

in Figure 4.

Figure 4 Plastic Quad Flat Package (PQFP)

Mechanical Dimensions

E1

A2

A1

L

E

D1

b

D

ES6430

e

1

e1

L1

256-Pin PQFP

Table 1

ES6430 256-Pin PQFP Package Dimensions

Symbol

Descriptions

Millimeters

Minimum

Nominal

Maximum

D

Lead to lead, X-axis

—

30.60

—

D1

Package’s outside, X-axis

—

28.00

—

E

Lead to lead, Y-axis

—

30.60

—

E1

Package’s outside, Y-axis

—

28.00

—

A1

Board standoff

0.25

0.33

0.42

A2

Package thickness

3.20

3.32

3.60

b

Lead width

0.13

0.16

0.23

e

Lead pitch

—

0.40

—

e1

Lead gap

0.17

0.24

0.27

L

Foot length

0.45

0.60

0.75

L1

Lead length

—

1.30

—

—

Foot angle

0°

—

7°

—

Coplanarity

—

—

0.102

—

Number of leads in X-axis

—

64

—

—

Number of leads in Y-axis

—

64

—

—

Total number of leads

—

256

—

—

Package type

—

PQFP

—

For lead-free devices, the solder paste and PCB finish/plating must be 100% lead-free in order to ensure

proper solderability.