DESCRIPTION
Prototype card PROTO-AT provides means to develop custom
cards for use in ISA bus computers. The card buffers all address
lines, data lines, and some of the control signals. It also
provides address decoding for I/O addresses 000 through 3FF
and for memory addresses 00000 through FF000 and allows set
up of the selected address block size.
The
card provides approximately 35 square inches of breadboard
area for custom circuit development. This breadboard area
contains over 2600 plated-through holes for easy component
soldering. The holes are 0.035 inches in diameter with 0.100
inches spacing. The breadboard area is surrounded by heavy
buses for ground and +5 VDC power.
The
card is supplied with a 37-pin Sub-D right-angle connector
and matching mounting bracket. The properly spaced holes at
the right end of the card will accommodate either one 37-pin
Sub-D connector, or on 25-pin and one 9-pin connector, or
one 40,50, or 60-pin flat cable connector.
