MC74ACT240 查看數據表（PDF） - ON Semiconductor

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MC74ACT240

Octal Buffer/Line Driver with 3-State Outputs

ON Semiconductor 

MC74AC240, MC74ACT240

0.15 (0.006) T U S

2X L/2 20

L

PIN 1

IDENT

1

0.15 (0.006) T U S

C

D

0.100 (0.004)

−T− SEATING

PLANE

20

1

Z

D

e

b

0.13 (0.005) M

PACKAGE DIMENSIONS

TSSOP−20

DT SUFFIX

20 PIN PLASTIC TSSOP PACKAGE

CASE 948E−02

ISSUE B

20X K REF

0.10 (0.004) M T U S V S

11

B

−U−

10

A

−V−

GH

J J1 ÍÍÍÍÍÍKK1ÍÍÍ

SECTION N−N

N

0.25 (0.010)

M

N

F

DETAIL E

DETAIL E

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−.

−W−

MILLIMETERS

INCHES

DIM MIN MAX MIN MAX

A 6.40 6.60 0.252 0.260

B 4.30 4.50 0.169 0.177

C −−− 1.20 −−− 0.047

D 0.05 0.15 0.002 0.006

F 0.50 0.75 0.020 0.030

G

0.65 BSC

0.026 BSC

H 0.27 0.37 0.011 0.015

J 0.09 0.20 0.004 0.008

J1 0.09 0.16 0.004 0.006

K 0.19 0.30 0.007 0.012

K1 0.19 0.25 0.007 0.010

L

6.40 BSC

0.252 BSC

M 0_ 8_ 0_ 8_

EIAJ−20

M SUFFIX

20 PIN PLASTIC EIAJ PACKAGE

CASE 967−01

ISSUE O

11

E HE

10

A

LE

M_

L

DETAIL P

VIEW P

A1

0.10 (0.004)

Q1

c

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS D AND E DO NOT INCLUDE

MOLD FLASH OR PROTRUSIONS AND ARE

MEASURED AT THE PARTING LINE. MOLD FLASH

OR PROTRUSIONS SHALL NOT EXCEED 0.15

(0.006) PER SIDE.

4. TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

5. THE LEAD WIDTH DIMENSION (b) DOES NOT

INCLUDE DAMBAR PROTRUSION. ALLOWABLE

DAMBAR PROTRUSION SHALL BE 0.08 (0.003)

TOTAL IN EXCESS OF THE LEAD WIDTH

DIMENSION AT MAXIMUM MATERIAL CONDITION.

DAMBAR CANNOT BE LOCATED ON THE LOWER

RADIUS OR THE FOOT. MINIMUM SPACE

BETWEEN PROTRUSIONS AND ADJACENT LEAD

TO BE 0.46 ( 0.018).

MILLIMETERS

DIM MIN MAX

A

−−− 2.05

A1 0.05 0.20

b 0.35 0.50

c 0.18 0.27

D 12.35 12.80

E 5.10 5.45

e

1.27 BSC

HE 7.40 8.20

L 0.50 0.85

LE 1.10 1.50

M

0 _ 10 _

Q1 0.70 0.90

Z

−−− 0.81

INCHES

MIN MAX

−−− 0.081

0.002 0.008

0.014 0.020

0.007 0.011

0.486 0.504

0.201 0.215

0.050 BSC

0.291 0.323

0.020 0.033

0.043 0.059

0 _ 10 _

0.028 0.035

−−− 0.032

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