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Technical Data Sheet
PartsTable / COMPONENT / CY7C261-45WMB
CY7C261-45WMB ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MICROCIRCUIT,MEMORY is a the manufacturer memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, body_height: 0.185 INCHES MAXIMUM IN, body_length: 1.280 INCHES MAXIMUM IN, features_provided: BURN IN AND MONOLITHIC AND PROGRAMMABLE AND ULTRAVIOLET ERASABLE, output_logic_form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC, inclosure_material: CERAMIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-279-3738, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
CY7C261-45WMB
NSN: 5962-01-279-3738
FSC: 5962
CAGE: FAH01 — 2 MB DISTRIBUTION (FRA)
SPECIFICATIONS
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
body_height0.185 INCHES MAXIMUM IN
body_length1.280 INCHES MAXIMUM IN
features_providedBURN IN AND MONOLITHIC AND PROGRAMMABLE AND ULTRAVIOLET ERASABLE
output_logic_formCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
inclosure_materialCERAMIC
memory_device_typeEPROM
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
test_data_document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern14 INPUT
inclosure_configurationDUAL-IN-LINE
NSN5962-01-279-3738
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,MEMORY TITLE COMPONENT PN CY7C261-45WMB MFR MICROCIRCUIT,MEMORY
KEY FEATURES
•
INCLOSURE MATERIAL: CERAMIC
•
BODY HEIGHT: 0.140 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
•
VOLTAGE RATING AND TYPE PER CHARACTERISTIC: 7.0 VOLTS MAXIMUM POWER SOURCE
•
TERMINAL TYPE AND QUANTITY: 24 PRINTED CIRCUIT
•
TERMINAL SURFACE TREATMENT: SOLDER
•
TIME RATING PER CHACTERISTIC: 45.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 45.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
•
MEMORY DEVICE TYPE: ROM
•
INPUT CIRCUIT PATTERN: 14 INPUT
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
TECHNICAL CHARACTERISTICS (FLIS)
INCLOSURE MATERIALCERAMIC
BODY HEIGHT0.140 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
VOLTAGE RATING AND TYPE PER CHARACTERISTIC7.0 VOLTS MAXIMUM POWER SOURCE
TERMINAL TYPE AND QUANTITY24 PRINTED CIRCUIT
TERMINAL SURFACE TREATMENTSOLDER
TIME RATING PER CHACTERISTIC45.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 45.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
MEMORY DEVICE TYPEROM
INPUT CIRCUIT PATTERN14 INPUT
BODY WIDTH0.245 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
OUTPUT LOGIC FORMCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
CY7C261-45WMBInterchangeable
interchangeable cross-reference
interchangeable
ROM/PROMInterchangeable
interchangeable cross-reference
interchangeable
5962-87515Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CY7C261-45WMB?
CY7C261-45WMB is a MICROCIRCUIT,MEMORY.
What parts can replace CY7C261-45WMB?
There are 3 known substitutes for CY7C261-45WMB: CY7C261-45WMB, ROM/PROM, 5962-87515. Substitute compatibility should be verified for your specific system.
What is the NSN for CY7C261-45WMB?
CY7C261-45WMB is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-279-3738. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026