MIL-M-38510-371 Microcircuits, Digital, Bipolar, Advanced, Low-Power Schottky Ttl, Flip-Flops, Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, advanced, low-power Schottky TTL, flip flops, bistable logic microcircuits. Two product assurance classes and a choice of case outlines/lead finish 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 For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.3.

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MIL-M-38510/371B

1. Clear and preset inputs dominate regardless of the state of clock or J-K inputs.

2. Clear and preset input pulse characteristics: t1 = t0 = 6 ±1.5 ns; tp ( clear ) = 15 ns;

tp ( preset ) = 15 ns; and PRR ≤ 1 MHz.

3. tp (clock) = 20 ns minimum; PRR = clear or preset PRR.

4. CL = 50 pF ±10% (including jig and probe capacitance without package in test fixture).

5. RL = 499ν ±1%.

6. When testing clear to output switching, present inputs shall have a logical "1" voltage

applied. When testing preset to output switching, clear input shall have a logical "1" voltage applied (see table III).

FIGURE 4. Clear and preset switching test circuit and waveforms (device type 03).