MIL-M-38510-21 Microcircuits, Digital, Bipolar, Ttl, Low Power, Flip-Flops, Monolithic SiliconThis specification covers the detail requirements for monolithic, silicon, TTL, low power, bistable logic microcircuits. 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 For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.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-38510/21F

NOTES:

1/ Clear or preset input pulse characteristics: Vgen = 3.0 V ±0.2 V, t0 = 15 ns, t1 = 15 ns, tP(CLEAR) = tP(PRESET) =

100 ns, PRR = 0.5 MHz and ZOUT = 50 n.

2/ CL = 50 pF minimum and includes probe and jig capacitance.

3/ RL = 4 kn ±5% and C1 = 30 pF minimum.

4/ All diodes are 1N916 or equivalent.

5/ When testing clear to output switching, preset input shall have a negative pulse; when testing preset to output switching, clear input shall have a negative pulse (see table III).

FIGURE 8. Clear and preset switching test circuit for device type 04.