scope:

This drawing describes the requirements for monolithic silicon, low power Schottky TTL, register microcircuits. This drawing provides for a level of microcircuit quality and reliability assurance for acquisition of microcircuits in accordance with MIL-M-38510.

The complete part number shall be as shown in the following example:

The device type shall identify the circuit function as follows:

Device type Generic number Circuit 01 54LS399 Quad 2-port register

The case outline shall be as designated in appendix C of MIL-M-38510, and as follows:

Outline letter Case outline E D-2 (16-lead, ¼" × ⅞"), dual-in-line package F F-5 (16-lead, ¼" × ⅜"), flat package 2 C-2 (20-terminal, .350" × .350"), square chip carrier package

Supply voltage range- - - - - - - - - - - −0.5 V dc to +7.0 V dc Input voltage range - - - - - - - - - - - −1.5 V dc at −18 mA to +5.5 V dc Storage temperature range - - - - - - - - −65°C to +150°C Maximum power dissipation, P_D 1/- - - - - - 37 mW dc Lead temperature (soldering, 10 seconds)- +300°C Thermal resistance, junction to case (Θ_JC): Cases E, F- - - - - - - - - - - - - - - see MIL-M-38510, appendix C Case 2- - - - - - - - - - - - - - - - - 80°C/W 2/ Junction temperature (T_J) - - - - - - - - +175°C

Supply voltage (V_CC)- - - - - - - - - - - 4.5 V dc minimum to 5.5 V dc maximum Minimum high level input voltage (V_IH)- - 2.0 V dc Maximum low level input voltage (V_IL) - - 0.7 V dc Case operating temperature range (T_C) - - −55°C to +125°C Width of clock pulse- - - - - - - - - - - 20 ns minimum Data setup time - - - - - - - - - - - - - 25 ns minimum Select setup time - - - - - - - - - - - - 45 ns minimum Hold time, any input- - - - - - - - - - - 0 ns minimum

intended Use: