Radio Shack TRS-80 - Page 26

LINE
A
ClK ~69 PIN 3
B
MREO it-40 PIN 19
C
WR it-40 PI N 22
D MREO it-74 PIN 3
E
NEXT ~69 PIN 5
F OMUX it-69 PIN 9
H OCAS
it-7f/J PIN 6
J
RAS* it-72 PIN 5
K MUX ~72 PIN 3
l CAS*
it-72 PIN 9
FIGURE 4. Waveform Chart
25