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Intel 5962-8953403MYA
- Part No.:
- 5962-8953403MYA
- Manufacturer:
- Intel
- Category:
- Specialized ICs
- Package:
- 68-CFlatpack
- Description:
- IC MATH COPROCESSOR 68CQFP
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
5962-8953403MYA - Military 80387-Compatible Math Coprocessor
An Intel-qualified 25 MHz 80387-family numeric coprocessor ordering code for legacy 80386 computing platforms, supplied in a 68-lead ceramic flat package.
The exact SMD PIN is mapped by the official DLA MIL-HDBK-103 record to Intel MQ8038725.
Overview
5962-8953403MYA is a military-standard ordering code associated with Intel MQ8038725. It belongs to the 80387 numeric coprocessor family used alongside compatible 80386 processors to execute x87 floating-point, integer, and BCD numeric operations in hardware.
Key Advantages
Offloads x87 arithmetic from a compatible 80386 host processor.
Supports floating-point, signed-integer, and packed-BCD operand formats defined by the 80387 architecture.
Designed for software using the x87 instruction and register model.
DLA records link the exact SMD PIN to Intel MQ8038725.
Feature Summary
Package & Footprint
The site record identifies a 68-CFlatpack package for 5962-8953403MYA, consistent with the DLA mapping to the MQ-prefixed Intel part.
- Verify lead-one orientation and ceramic body outline.
- Use the controlled footprint and lead-spacing dimensions.
- Confirm board-level clock and coprocessor interface routing.
- Apply approved handling and assembly controls for ceramic devices.
The expected package JPG is not present locally or confirmed online; publishing must wait for image verification.
Pin Functions
The 68-lead interface includes host-data, command/status, clock, synchronization, control, power, and ground connections used by the 80386/80387 coprocessor interface.
Transfers instructions, operands, and results through the processor interface.
Coordinates request, busy, error, and synchronization behavior.
Supports the 25 MHz mapped device grade.
Power and ground pins require controlled decoupling and layout.
Use the exact Intel and military package documentation for individual lead assignments.
Key Specifications
| Ordering code | 5962-8953403MYA |
|---|---|
| DLA vendor-similar PIN | MQ8038725 |
| Device family | Intel 80387 numeric coprocessor |
| Mapped speed grade | 25 MHz |
| Host platform | Compatible 80386 systems |
| Register model | Eight-register x87 stack |
| Numeric formats | Real, signed integer, and packed BCD |
| Package | 68-lead ceramic flatpack |
| Qualification identifier | Military SMD PIN 5962-8953403MYA |
Electrical limits, timing, screening, and case-temperature requirements must be taken from the controlled drawing and applicable Intel documentation.
Replacement Considerations
No drop-in replacement is asserted. Verify SMD revision, vendor-similar PIN, 25 MHz grade, flatpack outline, lead map, voltage and timing, screening level, host chipset behavior, BIOS/software assumptions, and x87 exception handling.
Manufacturer Information
The official DLA handbook lists Intel as the approved source and MQ8038725 as the vendor-similar PIN for this exact SMD code. Use revision-controlled DLA and Intel documentation during design maintenance and procurement.
Applications
Quality & Authenticity
Verify the full SMD marking, Intel source identification, lot/date code, 68-lead ceramic flatpack, screening documentation, traceability, lead condition, and storage history against approved procurement records.
FAQ
The DLA handbook maps it to Intel MQ8038725.
It is an 80387-family numeric coprocessor for compatible 80386 systems.
Only after verifying the complete military drawing, speed, package, timing, screening, and software requirements.
Engineering Notice
This page is an engineering selection aid. Use the exact DLA source-control record, military drawing, Intel 80387 reference manual, and package drawing before release or substitution.
5962-8953403MYA Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Intel
- Series:
- i387®
- Package/Case:
- 68-CFlatpack
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Math Coprocessor
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-CQFP (24.08x24.08)
- Grade:
- -
- Qualification:
- -
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