MIL-M-3851O/18B
Write function table (see notes 1, 2, and 3)
Write inputs |
Word |
|||||
WB |
WA |
GW |
O |
1 |
2 |
3 |
L |
L |
L |
Q = D |
QO |
QO |
QO |
L |
H |
L |
QO |
Q = D |
QO |
QO |
H |
L |
L |
QO |
QO |
Q = D |
QO |
H |
H |
L |
QO |
QO |
QO |
Q = D |
x |
x |
H |
QO |
QO |
QO |
QO |
Read function table (see notes 1 and 4)
Read inputs |
Outputs |
|||||
RB |
RA |
GR |
Q1 |
Q2 |
Q3 |
Q4 |
L |
L |
L |
WOB1 |
WOB2 |
WOB3 |
WOB4 |
L |
H |
L |
W1B1 |
W1B2 |
W1B3 |
W1B4 |
H |
L |
L |
W2B1 |
W2B2 |
W2B3 |
W2B4 |
H |
H |
L |
W3B1 |
W3B2 |
W3B3 |
W3B4 |
x |
x |
H |
H |
H |
H |
H |
NOTES:
1. H = high level, L = low level, x = irrelevant.
2. (Q = D) = The four selected internal flip-flop outputs will assume the states applied to the four external data inputs.
3. QO = The level of Q before the indicated input conditions were established.
4. WOB1 = The first bit of word O, etc.
Figure 3. Truth tables.
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