scope:

This drawing documents two product assurance class levels consisting of high reliability (device classes Q and M) and space application (device class V). 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 (RHA) levels are reflected in the PIN.

The PIN is as shown in the following example:

Device classes Q and V RHA marked devices meet the MIL-PRF-38535 specified RHA levels and are marked with the appropriate RHA designator. Device class M RHA marked devices meet the MIL-PRF-38535, appendix A specified RHA levels and are marked with the appropriate RHA designator. A dash (-) indicates a non-RHA device.

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

Device type Generic number Circuit function 01 TL16C552AM Dual Asynchronous Communications Element With FIFO

The device class designator is a single letter identifying the product assurance level as follows:

Device class Device requirements documentation M Vendor self-certification to the requirements for MIL-STD-883 compliant, non-JAN class level B microcircuits in accordance with MIL-PRF-38535, appendix A Q or V Certification and qualification to MIL-PRF-38535

The case outline(s) are as designated in MIL-STD-1835 and as follows:

Outline letter Descriptive designator Terminals Package style X See Figure 1 68 Ceramic quad flat pack

The lead finish is as specified in MIL-PRF-38535 for device classes Q and V or MIL-PRF-38535, appendix A for device class M.

Supply voltage range (V_DD)........................... −0.5 V dc to +7.0 V dc Input voltage (V_IN).................................. −0.5 V dc to +7.0 V dc Continuous total power dissipation at 25°C........... 1689 mW 3/ Operating free air temperature range (T_A)............ −55°C to +125°C Storage temperature range (T_STG)..................... −65°C to +150°C Thermal resistance, junction-to-case (R_θJC).......... 3°C/W Thermal resistance, junction-to-air (R_θJA)........... 74°C/W Junction temperature (T_J)............................ +175°C

Supply voltage range (V_DD)........................... 4.75 V dc to 5.25 V dc High-level input voltage range (V_IH)................. +2.0 V dc to V_DD Low-level input voltage (V_IL)........................ +0.0 V dc to +0.8 V Clock frequency, (f_clock)............................ 16 MHz max Operating free-air temperature range (T_A)............ −55°C to +125°C

intended Use: