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 WSF128K16-72Q Single 128K × 16-bit SRAM and 70 ns (SRAM) single 128K × 16-bit Flash EPROM 120 ns (EPROM) each with separate data buses 02 WSF128K16-37Q Single 128K × 16-bit SRAM and 35 ns (SRAM) 128K × 16-bit Flash EPROM 70 ns (EPROM) each with separate data buses

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 M See figure 1 68 Ceramic, Quad flatpack, dual cavity X See figure 1 66 Hex-in-line, single cavity, with standoffs

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 Input voltage range .................................. −0.5 V dc to +7.0 V dc Power dissipation (P_D) ............................... 1.4 W maximum Storage temperature range ............................ −65°C to +150°C Lead temperature (soldering, 10 seconds) ............. +300°C Thermal resistance junction-to-case (θ_JC): Case outline M ..................................... 12.8°C/W maximum Case outline X ..................................... 8.7°C/W maximum Data retention (Flash) ............................... 10 years minimum Endurance (Flash) .................................... 10,000 cycles minimum

Supply voltage range (V_CC) ........................... +4.5 V dc to +5.5 V dc Input low voltage range (V_IL ) ....................... −0.5 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) ..................... +0.4 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.