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Texas Instruments 5962-8975701LA
- Part No.:
- 5962-8975701LA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-8975701LA.pdf
- Description:
- SN54AS885 8-BIT MAGNITUDE COMPAR
- Quantity:
- Payment:
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Inventory:1,991
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Product details
Overview
5962-8975701LA from Texas Instruments is a military-grade 8-bit magnitude comparator IC performing high-speed arithmetic or logic comparison of two 8-bit binary words, featuring latchable P-input port, dual-mode (logical/arithmetic) comparison, cascading capability up to n bits, and operation across –55°C to 125°C.
For engineers reviewing the 5962-8975701LA datasheet, 5962-8975701LA pinout, 5962-8975701LA application, or 5962-8975701LA equivalent, key selection considerations include its ceramic DIP-24 package, L/A mode control for logic/arithmetic selection, PLE-enabled latching, and P > QOUT / P < QOUT cascading outputs with ≤14 ns propagation delay.
Technical Context
The 5962-8975701LA implements an advanced Schottky TTL architecture with pnp input transistors reducing low-level input current to –1 mA, enabling minimal dc loading. Its dual comparison modes are selected via the L/A pin: high enables logical comparison (P vs Q), low enables arithmetic (two's complement) comparison.
Cascading uses dedicated P > QIN / P < QIN inputs and P > QOUT / P < QOUT outputs with only two-gate-level delay per stage, supporting 16-bit, 24-bit, or 32-bit word comparisons without external gates. The transparent latch on P-data is controlled by PLE, with setup/hold times of 2 ns / 4.5 ns respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit magnitude comparator with latchable P-input port and dual-mode (logical/arithmetic) comparison |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems and robust noise margin |
| Operating Temperature | –55°C to 125°C - qualified for military/aerospace applications per MIL-PRF-38535 |
| Propagation Delay | Max 14 ns (tPHL/tPLH, L/A → P > QOUT/P < QOUT) - enables high-throughput digital comparison in real-time control paths |
| Output Drive | IOL = 20 mA, IOH = –2 mA - sufficient to drive multiple TTL loads without buffering |
| Input Current | IIL = –2 mA (P/Q/PLE), IIH = –4 µA (L/A) - low dc loading preserves bus integrity in dense logic systems |
| Package | Ceramic Dual-In-Line Package (CDIP), JT, 24-pin - hermetically sealable, MIL-STD-1835 compliant |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP), JT, 24-pin, 0.300-inch width, hermetically sealable per MIL-STD-1835 GDIP3-T24. Seating plane defined, index point on cap for terminal identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | L/A | Logic/Arithmetic mode select: HIGH = logical comparison, LOW = arithmetic (two's complement) |
| 2 | P < QIN | Cascaded less-significant-stage "P less than Q" input for multi-word expansion |
| 3 | P > QIN | Cascaded less-significant-stage "P greater than Q" input for multi-word expansion |
| 4–11 | Q0–Q7 | 8-bit non-latched Q operand inputs (LSB to MSB) |
| 12 | GND | Ground reference for all internal circuitry and I/O |
| 13 | P > QOUT | Active-HIGH output indicating P > Q (or P AG Q in arithmetic mode) |
| 14 | P < QOUT | Active-HIGH output indicating P < Q (or Q AG P in arithmetic mode) |
| 15–22 | P0–P7 | 8-bit latchable P operand inputs (LSB to MSB); latched on PLE falling edge |
| 23 | PLE | P latch-enable: HIGH = transparent, LOW = latches P-data - enables synchronized sampling |
| 24 | VCC | +5 V supply input - powers all internal logic and output stages |
Key Features
| Feature | Design Value |
|---|---|
| Latchable P-input port with power-up clear | Enables synchronous capture of P-word independent of Q-word timing; eliminates race conditions in pipelined comparators |
| Choice of logical or arithmetic (two's complement) comparison | Single-pin L/A control allows runtime reconfiguration between unsigned binary and signed integer comparison modes |
| pnp input transistors on data and PLE inputs | Reduces low-level input current to –1 mA, minimizing dc loading on shared buses and improving fan-out capability |
| Cascadable to n bits with two-gate-level delay per stage | Supports 16-, 24-, or 32-bit comparisons using only P > QIN/P < QIN and P > QOUT/P < QOUT signals - no external gates required |
| 35% faster ac performance vs. standard Schottky TTL | Typical tPLH/tPHL of 5–8.5 ns enables use in high-speed address decoding, ALU status generation, and real-time sorting logic |
Applications
| Microprocessor Address Decoding | Digital Signal Processor (DSP) Status Logic |
|---|---|
Use Scenario: Comparing CPU address bus against memory-mapped peripheral base addresses to enable chip-select signals. IC Role / Device Role / Timing Role: 5962-8975701LA acts as a fast, latchable address comparator generating P > QOUT/P < QOUT to gate decode logic. Use Value: Sub-14 ns propagation enables tight timing margins in 10–20 MHz bus systems; L/A pin supports both unsigned I/O space and signed memory-mapped regions. |
Use Scenario: Evaluating intermediate results in DSP pipelines to trigger saturation, overflow, or branch conditions. IC Role / Device Role / Timing Role: 5962-8975701LA performs arithmetic comparison of accumulator outputs using two's complement mode (L/A = LOW). Use Value: Cascadable architecture allows direct integration into multi-cycle ALU chains; PLE latching synchronizes comparison to pipeline clock edges. |
| Military Avionics Data Validation | Secure Cryptographic Co-Processor Interface |
Use Scenario: Validating sensor data ranges (e.g., ADC outputs) against hard safety thresholds in flight control units. IC Role / Device Role / Timing Role: 5962-8975701LA compares real-time telemetry values against stored limits using logical mode (L/A = HIGH). Use Value: –55°C to 125°C operation and ceramic DIP packaging ensure reliability under extreme environmental stress and EMI exposure. |
Use Scenario: Verifying modular arithmetic residues (e.g., RSA exponentiation outputs) against expected bounds in tamper-resistant modules. IC Role / Device Role / Timing Role: 5962-8975701LA executes deterministic arithmetic comparisons on 8-bit segments of large integers. Use Value: Dual-mode capability supports both unsigned modulus checks and signed residue validation; cascading enables full 256-bit range verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit magnitude comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54AS885JT | Identical functionality, same JT package and military temperature range; differs only in MIL-PRF-38535 screening level and device marking format | No functional difference; used interchangeably in new designs requiring QML-38535 Class V qualification | Select SN54AS885JT if sourcing through standard TI military distribution channels; 5962-8975701LA is preferred for DoD-assigned part number traceability |
| 5962-89757013A | LCCC (FK) package, 28-pin, higher I/O count; includes NC pins and different pinout; same electrical specs and temp range | Suitable for space-constrained PCBs requiring surface-mount hermetic packaging; incompatible pinout prevents drop-in replacement | Choose 5962-89757013A when board layout supports LCCC and thermal/mechanical requirements favor ceramic leadless construction |
Compared with SN54AS885JT, 5962-8975701LA provides identical logic behavior and environmental rating but with DoD-assigned nomenclature for procurement traceability; versus 5962-89757013A, it offers DIP-24 compatibility at the cost of larger footprint and through-hole assembly.
Availability
5962-8975701LA is available at Aetrix Electronics and suitable for military avionics, aerospace control systems, and ruggedized industrial instrumentation requiring stable component supply, long-term obsolescence management, and certified QML-38535 Class V compliance.
Supply support for 5962-8975701LA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for defense, industrial, and automotive markets.
The SN54AS885 product line delivers radiation-tolerant, high-speed TTL-compatible comparators designed specifically for mission-critical systems requiring deterministic timing, latch synchronization, and extended temperature operation.
FAQ
What is the operating temperature range of the 5962-8975701LA?
The 5962-8975701LA is characterized for operation from –55°C to 125°C, meeting MIL-PRF-38535 Class V requirements for military and aerospace applications. This range is verified per the SDAS236A datasheet and confirmed in TI's Package Option Addendum, where the device is listed with Op Temp (°C) = –55 to 125. No derating or external thermal management is required within this envelope.
Does the 5962-8975701LA support both logical and arithmetic comparison modes?
Yes, the 5962-8975701LA supports both modes via the L/A pin: when HIGH, it performs logical (unsigned binary) comparison of P and Q; when LOW, it performs arithmetic (two's complement) comparison. This is explicitly defined in the FUNCTION TABLE and APPLICATION INFORMATION sections of the SDAS236A datasheet, with separate truth table rows for each mode.
What package type is used for the 5962-8975701LA?
The 5962-8975701LA uses a Ceramic Dual-In-Line Package (CDIP) with JT designation, 24-pin, 0.300-inch width. This is confirmed in TI's Package Option Addendum, which lists "CDIP / JT / 24" for 5962-8975701LA, and in the mechanical drawing MCER004A specifying GDIP3-T24 compliance and hermetic sealing capability.
How does cascading work on the 5962-8975701LA for comparing words longer than 8 bits?
Cascading uses P > QIN and P < QIN inputs to accept results from less-significant stages, and P > QOUT and P < QOUT outputs to drive more-significant stages. Each stage adds only two-gate-level delay, enabling efficient 16-bit or 32-bit comparisons. Figures 1 and 2 in the SDAS236A datasheet illustrate optimal and fastest cascading topologies for the 5962-8975701LA.
Is the P-input port on the 5962-8975701LA latched, and how is it controlled?
Yes, the P-input port is latchable via the PLE (P Latch Enable) pin. When PLE is HIGH, the port is transparent; when PLE transitions LOW, the current P0–P7 values are latched. Setup time is 2 ns and hold time is 4.5 ns, as specified in the recommended operating conditions table of the SDAS236A datasheet.
5962-8975701LA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-8975701LA FAQ
1.How can I place an order for 5962-8975701LA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8975701LA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 5962-8975701LA reliable?
The price and inventory of 5962-8975701LA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8975701LA is usually 5 days.
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5962-8975701LA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8975701LA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 5962-8975701LA?
For technical support, including 5962-8975701LA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8975701LA requirements.
6.How does Aetrix verify that 5962-8975701LA is sourced from the original manufacturer or authorized distributors?
All 5962-8975701LA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 5962-8975701LA meets industry standards.
7.What is the process for return or replacement of 5962-8975701LA?
All 5962-8975701LA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8975701LA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 5962-8975701LA part is unused and in its original packaging.
Return procedure for 5962-8975701LA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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