The
Plastic Dual
In-line Package,
or PDIP,
is one of the most mature plastic IC packages still in use
today. It is rectangular in shape and has leads extending from both
sides along its length, thus forming two sets of in-line pins.
The PDIP comes in two body widths, i.e., 300 mils and 600 mils. Lead
counts range from 8 to 64. The PDIP is a through-hole package, which means
that its leads protrude to the other side of the circuit board once
mounted. The PDIP is robust and resistant to moisture, but it is
also much bulkier than its modern successors.
A 'shrink' version of the PDIP exists and is known as the
SPDIP.
Table 1. Properties of
Some Examples of PDIP's
|
Lead
Count |
Width |
Length |
Thickness |
Pitch |
Max.
Height |
|
8
|
6.52
mm |
9.53
mm |
3.24
mm |
2.54
mm |
4.19
mm |
|
10
|
6.61
mm |
22.86
mm |
3.94
mm |
2.54
mm |
4.95
mm |
|
12/16
|
6.61
mm |
29.91
mm |
3.94
mm |
2.54
mm |
5.33
mm |
|
22
|
13.53
mm |
37.4
mm |
7.75
mm |
2.54
mm |
8.89
mm |
|
24
|
13.71
mm |
31.75
mm |
4.57
mm |
2.54
mm |
5.08
mm |
|
28
|
13.525
mm |
37.4
mm |
4.07
mm |
2.54
mm |
6.35
mm |
