PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AT27HC641R70LM/883Microcircuit,memory

Atmel Corporation · NSN 5962-01-320-2539 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-320-2539 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-320-2539. Primary manufacturer part number: AT27HC641R70LM/883.
Features
  • Microcircuit,memory — FSC 5962
  • Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC
  • Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
  • Input Circuit Pattern: 14 INPUT
  • Test Data Document: 96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
  • Case Outline Source and Designator: C-4 MIL-M-38510
  • Memory Device Type: EPROM
  • Current Rating Per Characteristic: 120.00 MILLIAMPERES MAXIMUM SUPPLY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,memory, cataloged under National Stock Number 5962-01-320-2539, 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 Atmel Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-01-320-2539
Primary Part NumberAT27HC641R70LM/883
Item NameMicrocircuit,memory
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerAtmel Corporation
StatusCANCELLED
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Input Circuit Pattern14 INPUT
Test Data Document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Case Outline Source and DesignatorC-4 MIL-M-38510
Memory Device TypeEPROM
Current Rating Per Characteristic120.00 MILLIAMPERES MAXIMUM SUPPLY
Terminal Type and Quantity28 LEADLESS
Terminal Surface TreatmentSOLDER
Voltage Rating and Type Per Characteristic-0.5 VOLTS MINIMUM POWER SOURCE AND 7.0 VOLTS MAXIMUM POWER SOURCE
Features ProvidedMONOLITHIC AND ULTRAVIOLET ERASABLE AND PROGRAMMABLE
Body Width11.23 MILLIMETERS MINIMUM AND 11.68 MILLIMETERS MAXIMUM MM
Maximum Power Dissipation Rating1.0 WATTS
Body Length11.23 MILLIMETERS MINIMUM AND 11.68 MILLIMETERS MAXIMUM MM
Body Height1.52 MILLIMETERS MINIMUM AND 2.54 MILLIMETERS MAXIMUM MM
Inclosure ConfigurationLEADLESS FLAT PACK
Inclosure MaterialCERAMIC
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5962-01-306-5559 INTERCHANGEABLE
Microcircuit,memory
5962-01-331-7105 INTERCHANGEABLE
Microcircuit,memory
5962-01-332-8597 INTERCHANGEABLE
Microcircuit,memory
5962-01-360-1551 INTERCHANGEABLE
Microcircuit,memory
5962-01-371-4156 INTERCHANGEABLE
Microcircuit,memory
5962-01-382-4254 INTERCHANGEABLE
Microcircuit,memory
5962-01-434-9097 INTERCHANGEABLE
Microcircuit,memory
5962-01-451-8150 INTERCHANGEABLE
Microcircuit,memory
5962-01-666-2623 INTERCHANGEABLE
Microcircuit,memory
Cross-Reference Index
Part NumberManufacturer
AT27HC641R70LM/883 Atmel Corporation (USA)
5962-8751503B3X 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)
AT27HC641-70LMB Atmel Corporation (USA)
WS57C49-70CMB Waferscale Integration Inc (USA)
AT27HC641-70LM/883 Atmel Corporation (USA)
57C49C-70CDMB Waferscale Integration Inc (USA)
WS57C49B-70CMB Waferscale Integration Inc (USA)
5962-8751503B3C Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-87515033C Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
10133802 Nimikkeistokeskus Ncb Finland (FIN)
5962-87515033A Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-87515 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-8751503B3B Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
312A3451P2 Bae Systems Controls Inc. (USA)
57C49B-70CMB Waferscale Integration Inc (USA)
WS57C49C-70CMB Waferscale Integration Inc (USA)
Related Parts
5962-01-306-5559INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-331-7105INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-332-8597INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-360-1551INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-371-4156INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-382-4254INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-434-9097INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-451-8150INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-666-2623INTERCHANGEABLE
MICROCIRCUIT,MEMORY

Frequently Asked Questions

What is NSN 5962-01-320-2539?

NSN 5962-01-320-2539 is a Microcircuit,memory, manufactured by Atmel Corporation, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-320-2539?

NSN 5962-01-320-2539 has 17 cross-referenced part numbers: AT27HC641R70LM/883 (Atmel Corporation), 5962-8751503B3X (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit), ROM/PROM (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), AT27HC641-70LMB (Atmel Corporation), WS57C49-70CMB (Waferscale Integration Inc) and 12 more.

What NSN replaces 5962-01-320-2539?

There are 9 known substitutes for 5962-01-320-2539: 5962-01-306-5559, 5962-01-331-7105, 5962-01-332-8597 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AT27HC641R70LM/883?

Key specifications for AT27HC641R70LM/883: Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC; Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC; Input Circuit Pattern: 14 INPUT; Test Data Document: 96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-320-2539 still in active supply?

NSN 5962-01-320-2539 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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