HP 5340A Operating And Service Manual page 247

Frequency counter
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Model 5340A
Schematic Diagrams
STORAGE
2 ,
TESTS
PRESENT-FUTURE ROM
U3 (1816-0003)
INPUTS
ADDRESS
C
E
D
PIN
13
NO.
1
2
3
4
5
6
7
10
12
14
15
16
1
0
0
0
19
20
21
22
23
24
25
26
31
8-54
Part of Figure 8-28. A21 Control Assembly
ROM
u3
Truth Table
OUTPUTS
A
Y5
5
2
9
7
5
4
1
10
0
1
ROM
u 4
STORAGE FF
,
16
ACTIONS
ACTION-TEST ROM
U4 (1816-0004) Truth Table
ADDRESS
C
A
Y6 Y 5 ! Y 4
E
D
1 4
13
10
7
6
0
0
0
0
0
1
0
0
0
0
1
0
0
0
2
3
0
0
0
1
1
1
0
0
4
5
0
0
1
1
0
7
0
0
1
1
1
1
0
0
10
11
12
13
15
0
1
1
1
1
0
1
1
16
,
0
0
0
0
17
1
0
0
0
1
18
1
0
0
1
0
0
0
0
19
0
0
0
0
1
0
0
20
2,
,
1
1
22
23
24
25
26
1
1
0
1
0
0
0
0
31
U14
TEST
OUTPUTS
Y3 Y2 Y1
5 1 4
3
2
1
1
1
1
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
'
0
0
1
0
0

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