Standard Microcircuit Drawing for NMOS 4K x 8 UV Erasable PROM

Category: Electronics, Memory ICS, Rochester Electronics Inc

Standard Microcircuit Drawing Overview

This standard microcircuit drawing specifies the requirements for military-grade, non-JAN class level B, NMOS 4K x 8 UV erasable PROM (Programmable Read-Only Memory), described under MIL-STD-883 compliance. The datasheet outlines various revisions to the document itself, including changes to device types, program methods, and characteristics, as well as editorial modifications throughout the drawing.

Drawing Revision History

Revisions in the drawing include the addition of device types 07 through 11, modification to program method C, and updates to match current MIL-PRF-38535 requirements. Changes in parameters, tables, and notes, as well as deletions of certain vendor information, have been noted. Also, a “D” certification paragraph has been added, and the drawing format has switched to a military style. The latest revision entries were approved by Charles Saffle and Raymond Monnin, showing continuous updates to ensure the validity and compliance of the document.

Device Specifications

Devices are specified with a complete Part or Identifying Number (PIN), including drawing number, device type, case outline, and lead finish. The list of device types details various configurations of the microcircuit, delineated by generic numbers, specific circuit functions, access times, and operating temperature ranges.

Physical and Electrical Properties

The microcircuit’s physical characteristics are laid out in accordance with MIL-STD-1835, covering case outlines and terminal package styles. Electrical properties include absolute maximum ratings for supply voltage, storage temperature, maximum power dissipation, lead temperature during soldering, thermal resistance, junction temperature, and voltage specifications during programming.

The document confirms that all devices should have a lid transparent to ultraviolet light to facilitate erasure. This datasheet is approved for public release, and its distribution is unlimited, being available to all departments and agencies of the Department of Defense.