PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CY7C291A-45LMBMicrocircuit,memory

Infineon Technologies Americas Corp. · NSN 5962-01-423-0575 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-423-0575 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-423-0575. Primary manufacturer part number: CY7C291A-45LMB.
Features
  • Microcircuit,memory — FSC 5962
  • Terminal Type and Quantity: 28 LEADLESS
  • Time Rating Per Chacteristic: 45.00 NANOSECONDS MAXIMUM ACCESS NS
  • Terminal Surface Treatment: SOLDER
  • Memory Device Type: PROM
  • Voltage Rating and Type Per Characteristic: 7.0 VOLTS NOMINAL POWER SOURCE
  • Inclosure Configuration: LEADLESS FLAT PACK
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,memory, cataloged under National Stock Number 5962-01-423-0575, 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 Infineon Technologies Americas Corp.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-423-0575
Primary Part NumberCY7C291A-45LMB
Item NameMicrocircuit,memory
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerInfineon Technologies Americas Corp.
StatusACTIVE
Terminal Type and Quantity28 LEADLESS
Time Rating Per Chacteristic45.00 NANOSECONDS MAXIMUM ACCESS NS
Terminal Surface TreatmentSOLDER
Memory Device TypePROM
Voltage Rating and Type Per Characteristic7.0 VOLTS NOMINAL POWER SOURCE
Inclosure ConfigurationLEADLESS FLAT PACK
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5962-01-334-0132 INTERCHANGEABLE
Microcircuit,memory
5962-01-347-8622 INTERCHANGEABLE
Microcircuit,memory
5962-01-391-1680 INTERCHANGEABLE
Microcircuit,memory
5962-01-463-9327 INTERCHANGEABLE
Microcircuit,memory
5962-01-642-3030 INTERCHANGEABLE
Microcircuit,memory
Cross-Reference Index
Part NumberManufacturer
CY7C291A-45LMB Infineon Technologies Americas Corp. (USA)
ROM/PROM Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
5962-88734023X Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-88734 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-88734023A Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
5962-88734023B Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit (USA)
WS57C291B-45ZMB Waferscale Integration Inc (USA)
Related Parts
5962-01-334-0132INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-347-8622INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-391-1680INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-463-9327INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-642-3030INTERCHANGEABLE
MICROCIRCUIT,MEMORY

Frequently Asked Questions

What is NSN 5962-01-423-0575?

NSN 5962-01-423-0575 is a Microcircuit,memory, manufactured by Infineon Technologies Americas Corp., classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-423-0575?

NSN 5962-01-423-0575 has 7 cross-referenced part numbers: CY7C291A-45LMB (Infineon Technologies Americas Corp.), ROM/PROM (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 5962-88734023X (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit), 5962-88734 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit), 5962-88734023A (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (standard Microcircuit) and 2 more.

What NSN replaces 5962-01-423-0575?

There are 5 known substitutes for 5962-01-423-0575: 5962-01-334-0132, 5962-01-347-8622, 5962-01-391-1680 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CY7C291A-45LMB?

Key specifications for CY7C291A-45LMB: Terminal Type and Quantity: 28 LEADLESS; Time Rating Per Chacteristic: 45.00 NANOSECONDS MAXIMUM ACCESS NS; Terminal Surface Treatment: SOLDER; Part Name Assigned by Controlling Agency: 2048 X 8 EPROM. 9 total characteristics are documented in the Federal Logistics Information System.

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