TC4421/TC4422

DS21420D-page 14

 2004 Microchip Technology Inc.

8-Lead Plastic Small Outline (SM) – Medium, 208 mil Body (SOIJ)

(JEITA/EIAJ Standard, Formerly called SOIC)

Foot Angle

φ

04

8

0

4

8

15

12

0

15

12

0

β

Mold Draft Angle Bottom

15

12

0

15

12

0

α

Mold Draft Angle Top

0.51

0.43

0.36

.020

.017

.014

B

Lead Width

0.25

0.23

0.20

.010

.009

.008

c

Lead Thickness

0.76

0.64

0.51

.030

.025

.020

L

Foot Length

5.33

5.21

5.13

.210

.205

.202

D

Overall Length

5.38

5.28

5.11

.212

.208

.201

E1

Molded Package Width

8.26

7.95

7.62

.325

.313

.300

E

Overall Width

0.25

0.13

0.05

.010

.005

.002

A1

Standoff

1.98

.078

A2

Molded Package Thickness

2.03

.080

A

Overall Height

1.27

.050

p

Pitch

8

8

n

Number of Pins

MAX

NOM

MIN

MAX

NOM

MIN

Dimension Limits

MILLIMETERS

INCHES*

Units

α

A2

A

A1

L

c

β

φ

2

1

D

n

p

B

E

E1

.070

.075

.069

.074

1.78

1.75

1.97

1.88

exceed .010" (0.254mm) per side.

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not

Notes:

Drawing No. C04-056

*Controlling Parameter