scope:

This drawing forms a part of a one part - one part number documentation system (see 6.6 herein). 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-PRF-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 Access time 01 WE-512K8-150CQ EEPROM, 512K × 8-bit 150 ns 02 WE-512K8-300CQ EEPROM, 512K × 8-bit 300 ns 03 WE-512K8-250CQ EEPROM, 512K × 8-bit 250 ns 04 WE-512K8-200CQ EEPROM, 512K × 8-bit 200 ns 05 WE-512K8-200CQ EEPROM, 512K × 8-bit 200 ns

This device class designator shall be a single letter identifying the product assurance level as follows:

Device class Device requirements documentation H or K Certification and Qualification to MIL-PRF-38534

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

Outline letter Descriptive designator Terminals Package style X See figure 1 32 Dual-in-line, dual cavity Y See figure 1 32 Dual-in-line, single cavity

The lead finish shall be as specified in MIL-PRF-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 range . . . . . . . . . . . . . . . . . . −0.6 V dc to +6.25 V dc Input voltage range . . . . . . . . . . . . . . . . . . . −0.6 V dc to +6.25 V dc Power dissipation (P_D) . . . . . . . . . . . . . . . . . 1.6 W Storage temperature range . . . . . . . . . . . . . . . . −65°C to +150°C Lead temperature (soldering, 10 seconds) . . . . . . . . +300°C Thermal resistance, Junction to case (Θ_JC) . . . . . . . 28°C/W Data retention . . . . . . . . . . . . . . . . . . . . . 10 years minimum

Supply voltage range . . . . . . . . . . . . . . . . . . +4.5 V dc to +5.5 V dc Input low voltage range (V_IL) . . . . . . . . . . . . . . −0.3 V dc to +0.8 V dc Input high voltage range (V_IH) . . . . . . . . . . . . . +2.2 V dc to V_CC + 0.3 V dc Output voltage, High minimum (V_OH) . . . . . . . . . . . +2.4 V dc Output voltage, low maximum (V_OL) . . . . . . . . . . . . +0.45 V dc Case operating temperature range (T_C) . . . . . . . . . . −55°C to +125°C

intended Use:

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