MC34271 datasheet(10/12 Pages) ONSEMI

Part #	MC34271

Description	Liquid Crystal Display and Backlight Integrated Controller

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MC34271

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PACKAGE DIMENSIONS

QFP–32

FB SUFFIX

CASE 873–01

ISSUE A

0.274

0.055

0.010

0.051

0.010

–

0.005

0.013

6

°

0.005

5

°

0.006

0.348

0.006

5

°

0.348

MIN

MAX

MILLIMETERS

INCHES

DIM

7.10

1.60

0.373

1.50

–

0.20

0.197

0.57

8

°

0.135

10

°

0.25

9.15

0.25

11

°

9.15

6.95

1.40

0.273

1.30

0.273

–

0.119

0.33

6

°

0.119

5

°

0.15

8.85

0.15

5

°

8.85

0.031 BSC

0.220 REF

0.016 BSC

0.80 BSC

5.6 REF

0.40 BSC

A

B

C

D

E

F

G

H

J

K

L

M

N

P

Q

R

S

T

U

V

X

0.280

0.063

0.015

0.059

–

0.008

0.022

8

°

0.005

10

°

0.010

0.360

0.010

11

°

0.360

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DATUM PLANE –H– IS LOCATED AT BOTTOM OF

LEAD AND IS COINCIDENT WITH THE LEAD WHERE

THE LEAD EXITS THE PLASTIC BODY AT THE

BOTTOM OF THE PARTING LINE.

4. DATUMS –A–, –B– AND –D– TO BE DETERMINED AT

DATUM PLANE –H–.

5. DIMENSIONS S AND V TO BE DETERMINED AT

SEATING PLANE –C–.

6. DIMENSIONS A AND B DO NOT INCLUDE MOLD

PROTRUSION. ALLOWABLE PROTRUSION IS 0.25

(0.010) PER SIDE. DIMENSIONS A AND B DO

INCLUDE MOLD MISMATCH AND ARE DETERMINED

AT DATUM PLANE –H–.

7. DIMENSION D DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR PROTRUSION

SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE D

DIMENSION AT MAXIMUM MATERIAL CONDITION.

DAMBAR CANNOT BE LOCATED ON THE LOWER

RADIUS OR THE FOOT.

–H–

DATUM

PLANE

X

K

DETAIL C

U

T

R

Q

P

DETAIL A

–A–,–B–,–D–

B

J

BASE METAL

D

N

SECTION B–B

VIEW ROTATED 90

° CLOCKWISE

F

–H–

DATUM

PLANE

H

32

25

24

17

16

9

8

1

V

B

–B–

L

–A–

L

–D–

A

S

DETAIL A

–C–

SEATING

PLANE

C E

DETAIL C

M

G

1.0 REF

0.039 REF

C

0.20 (0.008)

A–B

D

S

M

0.01 (0.004)

H

0.20 (0.008)

A–B

D

S

M

C

0.20 (0.008)

A–B

D

A–B

0.05 (0.002)

S

M

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