A

A

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PACKAGE OUTLINE

2.6

2.4

3.1

2.9

0.8

0.6

0.05

0.00

2X 2

8X 0.5

2X 0.5

14X 0.5

0.3

14X 0.3

0.2

1.5 0.1

1 0.1

0.1 MIN

(0.2) TYP

(0.16)

TYP

(0.13)

WQFN - 0.8 mm max height

BQA0014B

PLASTIC QUAD FLATPACK - NO LEAD

4227062/B 09/2021

0.08 C

0.1

C A B

0.05

NOTES:

1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing

per ASME Y14.5M.

2. This drawing is subject to change without notice.

3. The package thermal pad must be soldered to the printed circuit board for thermal and mechanical performance.

PIN 1 INDEX AREA

SEATING PLANE

PIN 1 ID

SYMM

EXPOSED

THERMAL PAD

SYMM

2

6

7

8

9

13

14

1

15

SCALE 4.500

A-A 35.000

SECTION A-A

TYPICAL

A

B

C

SN54ACT74, SN74ACT74

SCAS520J – AUGUST 1995 – REVISED APRIL 2025

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