scope:

This drawing describes device requirements for class B microcircuits in accordance with 1.2.1 of MIL-STD-883, "Provisions for the use of MIL-STD-883 in conjunction with compliant non-JAN devices".

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 function 01 UT1553B RTR Remote terminal interface with 1K × 16 RAM

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

Outline letter Case outline X P-BC, (68-pin, 1.135" × 1.135" × .345"), pin grid array package Y C-G5, (68-terminal, .960" × .960" × .135"), leaded chip carrier with unformed leads Z C-7, (68-terminal, .962" × .962" × .120"), square chip carrier package

Supply voltage range, (V_DD) - - - - - - - - - - - - - −0.3 V dc minimum to +7.0 V dc maximum DC input/dc output voltage range - - - - - - - - - - - −0.3 V dc minimum to +7.3 V dc maximum Storage temperature range - - - - - - - - - - - - - - −65°C to +150°C Maximum power dissipation, (P_D) - - - - - - - - - - - 300 mW 1/ Maximum junction temperature (T_J) - - - - - - - - - - +175°C Thermal resistance, junction-to-case (θ_JC) - - - - - - See MIL-M-38510, appendix C Latchup immunity (I_LU) - - - - - - - - - - - - - - - - ±150 mA Lead temperature(soldering, 10 seconds)- - - - - - - - +300°C

Supply voltage (V_DD) - - - - - - - - - - - - - - - - - 4.5 V dc minimum to 5.5 V dc maximum Minimum high level input voltage (V_IH) - - - - - - - - 5.5 V dc Maximum low level input voltage (V_IL) - - - - - - - - 0.0 V dc Case operating temperature range (T_C) - - - - - - - - −55°C to +125°C Operating frequency (F_O) - - - - - - - - - - - - - - - 12 MHz

intended Use: