74FST3245DWR2 datasheet(6/8 Pages) ONSEMI

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74FST3245

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PACKAGE DIMENSIONS

TSSOP–20

DT SUFFIX

CASE 948E–02

ISSUE A

DIM

MIN

MAX

MIN

MAX

INCHES

6.60

0.260

MILLIMETERS

4.30

4.50

0.169

0.177

1.20

0.047

0.05

0.15

0.002

0.006

0.50

0.75

0.020

0.030

0.65 BSC

0.026 BSC

0.27

0.37

0.011

0.015

0.09

0.20

0.004

0.008

0.09

0.16

0.004

0.006

0.19

0.30

0.007

0.012

0.19

0.25

0.007

0.010

6.40 BSC

0.252 BSC

___

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A DOES NOT INCLUDE MOLD FLASH,

PROTRUSIONS OR GATE BURRS. MOLD FLASH

OR GATE BURRS SHALL NOT EXCEED 0.15

(0.006) PER SIDE.

4. DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED 0.25 (0.010)

PER SIDE.

5. DIMENSION K DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN

EXCESS OF THE K DIMENSION AT MAXIMUM

MATERIAL CONDITION.

6. TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

7. DIMENSION A AND B ARE TO BE DETERMINED

AT DATUM PLANE -W-.

110

PIN 1

IDENT

–T–

0.100 (0.004)

SECTION N–N

JJ1

–W–

SEATING

PLANE

–V–

–U–

0.10 (0.004)

V S

20X

REF

L/2

0.15 (0.006) T

DETAIL E

0.25 (0.010)

DETAIL E

6.40

0.252

---

0.15 (0.006) T

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