BASIC stamp manual v2.2

1: Introduction to the BASIC Stamp
BASIC Stamp Syntax and Reference Manual 2.2 www.parallax.com Page 19
BASIC Stamp 2p
Figure 1.9: BASIC Stamp 2p24
(Rev. C) (Stock# BS2p24-IC)
This module is identical in function
to the BS2p40-IC, except that it has
16 I/O pins.
Figure 1.10: BASIC Stamp 2p40
(Rev. B) (Stock# BS2p40-IC)
This module is identical in function
to the BS2p24-IC, except that it has
32 I/O pins.
The BASIC Stamp 2p is available in the above two physical packages.
Both packages use surface mount components to fit in a small package.
The BS2p24-IC (Figure 1.9) is a 24-pin DIP package. The BS2p40-IC
(Figure 1.10) is a 40-pin DIP package. Both packages are functionally
equivalent accept that the BS2p40 has 32 I/O pins instead of 16.