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PT4450 PRE1.0

- 11 -

August, 2007

SAW-based ASK/OOK Transmitter IC

Preliminary

PT4450

Notes:

1. Dimension and tolerancing per ASME Y14.5M-1994.

2. Dimension in Millimeters.

3. Dimension D does not include mold flash, protrusion or gate burrs. Mold flash, protrusions or gate

burrs shall not exceed 0.25mm per end. Dimension E1 does not include interlead flash or

protrusion. Interlead flash or protrusion shall not exceed 0.25mm per side. D and E1 dimensions

are determined at datum H.

4. The package top may be smaller than the package bottom. Dimensions D and E1 are determined at

the outermost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs and

interlead flash, but including any mismatch between the top and bottom of the plastic body. D and

E1 dimensions are determined at datum H.

5. Datums A & B to be determined at datum H.

6. These dimensions apply to the flat section of the lead between 0.08mm and 0.15mm from the lead

tip.

7. Dimension “b” does not include dambar protrusion. Allowable dambar protrusion shall be 0.08mm

total in exceed of the “b” dimension at maximum material condition. The dambar cannot be located

on the lower radius of the foot. Minimum space between protrusion and an adjacent lead shall not

be less than 0.07mm.

8. Details of the pin 1 identifier are optional, but must be located within the zone indicated.

9. Refer to JEDEC MO-178 Variation AB

JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION