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 For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.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

Device type 03                 Positive logic:     Low input to clear sets Q to low level

Clear is independent of clock

NOTES:

1.  tn = Bit time before clock pulse.

2.  tn+1 = Bit time after clock pulse.

Device type 04                 Positive logic:     Low input to preset sets Q to high level

Low input to clear sets Q to low level

Preset and clear are independent of clock

NOTES:

1.  tn = Bit time before clock pulse.

2.  tn+1 = Bit time after clock pulse.

Description for device types 03 and 04

These flip-flops are based on the master slave principle and each has AND gate inputs for entry into the master section which are controlled by the clock pulse.  The clock pulse also regulates the state of the coupling transistors which connect the master and slave sections.  The sequence of operation as controlled by the clock pulse is as follows:

1.  Isolate slave from master.

2.  Enter information from AND gate inputs to master.

3.  Disable AND gate inputs.

4.  Transfer information from master to slave.

Figure 2.  Truth tables and device descriptions- Continued.

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