scope:

This drawing documents five product assurance classes, class D (lowest reliability), class E, (exceptions), class G (lowest high reliability), class H (high reliability), and class K, (highest reliability) 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 WMS128K8-120 SRAM, 128K × 8-bit 120 ns 02 WMS128K8-100 SRAM, 128K × 8-bit 100 ns 03 WMS128K8-85 SRAM, 128K × 8-bit 85 ns 04 WMS128K8-70 SRAM, 128K × 8-bit 70 ns 05 WMS128K8-55 SRAM, 128K × 8-bit 55 ns 06 WMS128K8-45 SRAM, 128K × 8-bit 45 ns 07 WMS128K8-35 SRAM, 128K × 8-bit 35 ns 08 WMS128K8-25 SRAM, 128K × 8-bit 25 ns 09 WMS128K8-20 SRAM, 128K × 8-bit 20 ns 10 WMS128K8-17 SRAM, 128K × 8-bit 17 ns

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

Device class Device performance documentation D, E, G, 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 U See figure 1 32 Co-fired ceramic SOJ, revolutionary T See figure 1 32 Co-fired ceramic SOJ, evolutionary X See figure 1 36 Co-fired ceramic flatpack, revolutionary Y See figure 1 32 Co-fired ceramic dual-in-line, evolutionary Z See figure 1 36 Co-fired ceramic SOJ, revolutionary

The lead finish shall be as specified in MIL-PRF-38534.

Supply voltage range (V_CC) ............................... −0.5 V dc to +7.0 V dc Signal voltage range (V_G) ................................ −0.5 V dc to V_CC +0.5 V dc Power dissipation (P_D) ................................... 0.88 W Max. Storage temperature range ............................... −65°C to +150°C Lead temperature (soldering, 10 seconds) ................ +300°C

Supply voltage range (V_CC) ............................... +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 Case operating temperature (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.