PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27C256/BXA-20Microcircuit,memory

Philips Semiconductors Inc · NSN 5962-01-262-9858 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-262-9858 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-262-9858. Primary manufacturer part number: 27C256/BXA-20.
Features
  • Microcircuit,memory — FSC 5962
  • Body Width: 0.500 INCHES MAXIMUM IN
  • Terminal Surface Treatment: SOLDER
  • Case Outline Source and Designator: D-10 MIL-M-38510
  • Voltage Rating and Type Per Characteristic: 6.5 VOLTS MAXIMUM INPUT
  • Test Data Document: 96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
  • Memory Device Type: EPROM
  • Terminal Type and Quantity: 28 PRINTED CIRCUIT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,memory, cataloged under National Stock Number 5962-01-262-9858, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Philips Semiconductors Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-01-262-9858
Primary Part Number27C256/BXA-20
Item NameMicrocircuit,memory
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerPhilips Semiconductors Inc
StatusCANCELLED
Body Width0.500 INCHES MAXIMUM IN
Terminal Surface TreatmentSOLDER
Case Outline Source and DesignatorD-10 MIL-M-38510
Voltage Rating and Type Per Characteristic6.5 VOLTS MAXIMUM INPUT
Test Data Document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Memory Device TypeEPROM
Terminal Type and Quantity28 PRINTED CIRCUIT
Body Height0.185 INCHES MAXIMUM IN
Inclosure ConfigurationDUAL-IN-LINE
Maximum Power Dissipation Rating275.0 MILLIWATTS
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Body Length1.375 INCHES MAXIMUM IN
Inclosure MaterialMETAL OR CERAMIC OR PLASTIC
Input Circuit Pattern23 INPUT
Features ProvidedMONOLITHIC AND ULTRAVIOLET ERASABLE AND PROGRAMMABLE
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5962-01-261-9625 INTERCHANGEABLE
Microcircuit,memory
5962-01-261-9626 INTERCHANGEABLE
Microcircuit,memory
5962-01-261-9627 INTERCHANGEABLE
Microcircuit,memory
5962-01-319-5842 INTERCHANGEABLE
Microcircuit,memory
5962-01-329-7165 INTERCHANGEABLE
Microcircuit,memory
5962-01-352-1006 INTERCHANGEABLE
Microcircuit,memory
5962-01-353-4214AM27C256-200DC INTERCHANGEABLE
Microcircuit,digital
Advanced Micro Devices Inc Dba AMD Austin
5962-01-364-9376717712269-089 INTERCHANGEABLE
Microcircuit,memory
Lockheed Martin Corporation
5962-01-371-3742 INTERCHANGEABLE
Microcircuit,memory
5962-01-389-7020 INTERCHANGEABLE
Microcircuit,memory
Cross-Reference Index
Part NumberManufacturer
27C256/BXA-20 Philips Semiconductors Inc (USA)
DM27C256-200 Seeq Technology Inc (USA)
477-2872-002 The Boeing Company Div Legacy Boeing Hb1 (USA)
AM27C256-200DC Incon Inc Dba Incon Inc (USA)
MD27C256-20/B Intel Corp Sales Office (USA)
5962-86063 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-8606301XA Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
TMS27C256-20 Texas Instruments Incorporated (USA)
5962-8606301XX Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
MD27C256-20/B Advanced Micro Devices Inc Dba AMD Austin (USA)
SMJ27C256-20JM Texas Instruments Incorporated (USA)
5962-8606301XB Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
ROM/PROM Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
I25-0022-002 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
WS27C256L-20DMB Waferscale Integration Inc (USA)
Related Parts
5962-01-261-9625INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-261-9626INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-261-9627INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-319-5842INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-329-7165INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-352-1006INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-353-4214INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
AM27C256-200DC
5962-01-364-9376INTERCHANGEABLE
MICROCIRCUIT,MEMORY
717712269-089
5962-01-371-3742INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-389-7020INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-447-1528INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-465-3819INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-262-9858?

NSN 5962-01-262-9858 is a Microcircuit,memory, manufactured by Philips Semiconductors Inc, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-262-9858?

NSN 5962-01-262-9858 has 15 cross-referenced part numbers: 27C256/BXA-20 (Philips Semiconductors Inc), DM27C256-200 (Seeq Technology Inc), 477-2872-002 (The Boeing Company Div Legacy Boeing Hb1), AM27C256-200DC (Incon Inc Dba Incon Inc), MD27C256-20/B (Intel Corp Sales Office) and 10 more.

What NSN replaces 5962-01-262-9858?

There are 12 known substitutes for 5962-01-262-9858: 5962-01-261-9625, 5962-01-261-9626, 5962-01-261-9627 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27C256/BXA-20?

Key specifications for 27C256/BXA-20: Body Width: 0.500 INCHES MAXIMUM IN; Terminal Surface Treatment: SOLDER; Case Outline Source and Designator: D-10 MIL-M-38510; Voltage Rating and Type Per Characteristic: 6.5 VOLTS MAXIMUM INPUT. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-262-9858 still in active supply?

NSN 5962-01-262-9858 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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