MIL-M-38510-13 Microcircuits, Digital, Bipolar, Ttl, Counters Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, TTL, binary and decade counters. Two product assurance classes and a choice of case outlines and lead finishes are provided for each type and are reflected in the complete part number. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.

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MIL-M-38510/13G

DEVICE TYPE 01 DEVICE TYPE 02

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.