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|  MIL-M-38510/13G
DEVICE TYPE 01
DEVICE TYPE 02
Output
Output
Count
Count D
D
C
B
A
C
B
A
0
L
L
L
L
0
L
L
L
L
1
L
L
L
H
1
L
L
L
H
2
L
L
H
L
2
L
L
H
L
3
L
L
H
H
3
L
L
H
H
4
L
H
L
L
4
L
H
L
L
5
L
H
L
H
5
L
H
L
H
6
H
L
L
L
6
L
H
H
L
7
H
L
L
H
7
L
H
H
H
8
H
L
H
L
8
H
L
L
L
9
H
L
H
H
9
H
L
L
H
10
H
H
L
L
10
H
L
H
L
11
H
H
L
H
11
H
L
H
H
12
H
H
L
L
13
H
H
L
H
14
H
H
H
L
15
H
H
H
H
NOTES FOR TYPE 01:
1. Output A connected to input BC.
2. To reset all outputs to logical L, both R0(1) and R0(2) inputs must be at logical H.
3. Either (or both) reset inputs R0(1) and R0(2) must be at logical L to count.
4. When used as a divide-by-twelve counter, output A must be externally connected to input BC.
The input count pulses are applied to input A. Simultaneous divisions of 2, 6, and 12 are performed at the
A, C, and D outputs as shown in the truth table above.
5. When used as a divide-by-six counter, the input count pulses are applied to input BC. Simultaneously,
frequency divisions of 3 and 6 are available at the C and D outputs. Independent use of flip-flop A is
available if the reset function coincides with reset of the divide-by-six counter.
NOTES FOR TYPE 02:
1. Output A connected to input B.
2. To reset all outputs to logical L, both R0(1) and R0(2) inputs must be at logical H.
3. Either (or both) reset inputs R0(1) and R0(2) must be at logical L to count.
4. When used as a 4-bit ripple-through counter, output A must be externally connected to input B. The input
count pulses are applied to input A. Simultaneous divisions of 2, 4, 8, and 16 are performed at the A, B, C,
and D outputs as shown in the truth table above.
5. When used as a 3-bit ripple-through counter, the input count pulses are applied to input B. Simultaneous
frequency divisions of 2, 4, and 8 are available at the B, C, and D outputs. Independent use of flip-flop A is
available if the reset function coincides with reset of the 3-bit ripple-through counter.
FIGURE 3. Truth tables.
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