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 WME128K8-300CQ EEPROM, 128K × 8-bit 300 ns 02 WME128K8-250CQ EEPROM, 128K × 8-bit 250 ns 03 WME128KB-200CQ EEPROM, 128K × 8-bit 200 ns 04 WME128KB-150CQ EEPROM, 128K × 8-bit 150 ns 05 WME128KB-140CQ EEPROM, 128K × 8-bit 140 ns

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

Device class Device performance 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 Co-fired ceramic SOJ Y See figure 1 32 Co-fired ceramic dual-in-line

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

Supply voltage range (V_CC) ............................ −0.6 V dc to +6.25 V dc Signal voltage range (V_G) .............................. −0.6 V dc to +6.25 V dc Power dissipation (P_D) ................................. 0.44W Max. Storage temperature range ............................. −65°C to +150°C Lead temperature (soldering, 10 seconds) .............. +300°C Data retention ......................................... 10 years minimum Endurance (write/erase cycles) ........................ 10,000 cycles minimum Voltage on [O bar][E bar] and A9 .................................. −0.6 V dc to +13.5 V dc

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) ......................... +2.0 V dc to V_CC + 0.3 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.