CPU-Board
(AAB 01)
TA 1000 and TA 1069 use the same CPU board.
Otto
Müller created with two SN7483AN- (4-bit
adder), two SN7400N-,
two SN7486N-, four SN7450N-
and eight SN74H52N digital circuits
an
ALU,
with four SN7475N- and eight SN74100N latches a
register
file
and with many other gates and other TTL
circuits the necessary
control
unit, so that a total of 109 ICs (a 4-pin
threshold switch
included) form an 8-bit
CPU
with a 16-bit address bus.