scope:

This drawing forms a part of a one part - one part number documentation system (see 6.6). This drawing describes device requirements for hybrid microcircuits to be processed in accordance with MIL-H-38534. Two product assurance classes, military high reliability (device class H) and space application (device class K) and a choice of case outlines and lead finishes are available and are reflected in the Part or Identifying Number (PIN). When available, a choice of radiation hardness assurance levels are reflected in the PIN.

The PIN shall be as shown in the following example:

Device classes H and K RHA marked devices shall meet the MIL-H-38534 specified RHA levels and shall be marked with the appropriate RHA designator. A dash (-) indicates a non RHA device.

The device type(s) shall identify the circuit function as follows:

Device type Generic number Circuit function 01 CT1820 MIL-STD-1553 data terminal bit processor 02 CT1820-2 MIL-STD-1553 data terminal bit processor with high data bus driver capability 03 ARX2410 MIL-STD-1553 data terminal bit processor 04 ARX3410 MIL-STD-1553 data terminal bit processor

This device class designator shall be a single letter identifying the product assurance level (see 6.7 herein) as follows:

Device class Device requirements documentation H and K Certification and qualification to MIL-H-38534

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

Outline letter Case outline X See figure 1, (56-pin, 2.155" × 1.155" × .200"), plug-in package Y See figure 1, (60-pin, 1.590" × 1.015" × .125"), flat package

The lead finish shall be as specified in MIL-H-38534 for classes H and K. Finish letter "X" shall not be marked on the microcircuit or its packaging. The "X" designation is for use in specifications when lead finishes A, B, and C are considered acceptable and interchangeable without preference.

Supply voltage (V_CC)- - - - - - - - - - - - - - +7.0 V dc Logic input voltage - - - - - - - - - - - - - - −0.3 V dc to +5.5 V dc CLOCK IN input voltage- - - - - - - - - - - - - −0.3 V dc to V_CC + 0.3 V dc Storage temperature range - - - - - - - - - - - −65°C to +150°C Lead temperature (soldering, 10 seconds)- - - - +300°C Power dissipation (P_D): Device types 01, 03, and 04 - - - - - - - - - 347 mW Device type 02- - - - - - - - - - - - - - - - 1392 mW Thermal resistance, junction-to-case (θ_JC): Device type 01, cases X and Y - - - - - - - - 5.68°C/W Device type 02, cases X and Y - - - - - - - - 46.64°C/W Device types 03 and 04, case X- - - - - - - - 5.68°C/W

Supply voltage (V_CC)- - - - - - - - - - - - - - +4.5 V dc to +5.5 V dc Case operating temperature range (T_C) - - - - - −55°C to +125°C

intended Use:

Microcircuits conforming to this drawing are intended for Government microcircuits applications (original equipment) design applications, and logistics purposes.