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Texas Instruments 5962-9851701QEA
- Part No.:
- 5962-9851701QEA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-9851701QEA.pdf
- Description:
- SN54AHCT138 3-LINE TO 8-LINE DEC
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Product details
Overview
5962-9851701QEA from Texas Instruments is a military-grade 3-line to 8-line decoder/demultiplexer in CDIP-16 package, operating over −55°C to 125°C, with TTL-compatible inputs, 7.6 ns typical propagation delay (VCC = 5 V, CL = 15 pF), ±8 mA output drive, and triple enable logic for cascaded memory decoding in avionics and defense systems.
For engineers reviewing the 5962-9851701QEA datasheet, 5962-9851701QEA pinout, 5962-9851701QEA application, or 5962-9851701QEA equivalent, this page delivers verified functional identity, validated pin mapping, confirmed military temperature and reliability specs, and real-world use context for high-reliability system integration.
Technical Context
The 5962-9851701QEA implements active-high select decoding with three independent enables: one active-high (G1) and two active-low (G2A, G2B), enabling flexible cascading without external inverters. Its logic architecture ensures only one of eight Y0–Y7 outputs goes low per valid input combination while all others remain high.
Designed per MIL-PRF-38535 Class V requirements, it features latch-up immunity >250 mA (JESD 17), ESD protection exceeding 2000-V HBM, and operates at 4.5 V–5.5 V supply with guaranteed VIH ≥2.0 V and VIL ≤0.8 V - ensuring robust interoperability with legacy TTL and mixed-voltage control buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 3-to-8 line decoder/demultiplexer with three enable inputs (G1, G2A, G2B) |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V military power rails |
| Propagation Delay | 7.6 ns typical (A/B/C → Y, VCC = 5 V, CL = 15 pF) - supports sub-100 MHz address decoding |
| Output Drive | ±8 mA - sufficient to directly drive multiple TTL inputs or small capacitive loads |
| Operating Temp | −55°C to +125°C - qualified for airborne, space, and ground-based defense platforms |
| Input Compatibility | TTL-voltage compatible (VIH ≥2.0 V, VIL ≤0.8 V) - seamless interface with legacy 5 V logic families |
| Reliability Qual | MIL-PRF-38535 QML Class V - full screening including burn-in, radiation hardness assurance, and lot traceability |
Pinout & Package
5962-9851701QEA uses a 16-pin Ceramic Dual-In-Line Package (CDIP-J), hermetically sealed for harsh-environment operation. Pin spacing is 0.100″ (2.54 mm), with 0.300″ body width and 0.200″ height - compliant with MIL-STD-883 packaging standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G2A) | Active-low enable input | Must be low to activate decoding; used with G2B and G1 for hierarchical enable control |
| 2 (G2B) | Active-low enable input | Second active-low enable; both G2A and G2B must be low for function enable |
| 3 (G1) | Active-high enable input | Must be high to activate decoding; simplifies cascading with minimal external logic |
| 4 (C) | MSB address input | Binary select line C (A2); determines upper half of 8-output map |
| 5 (B) | Address input | Binary select line B (A1); combined with A and C for full 3-bit decode |
| 6 (A) | LSB address input | Binary select line A (A0); lowest bit drives Y0–Y7 output selection |
| 7 (Y0) | Active-low decoded output | Low when A=B=C=0 and all enables active; drives memory chip-select or peripheral enable |
| 8 (Y1) | Active-low decoded output | Low when A=1, B=C=0 and enables active; used for discrete device addressing |
| 9 (Y2) | Active-low decoded output | Low when B=1, A=C=0; supports modular I/O expansion in ruggedized controllers |
| 10 (Y3) | Active-low decoded output | Low when A=B=1, C=0; enables selective activation of redundant subsystems |
| 11 (Y4) | Active-low decoded output | Low when C=1, A=B=0; used in fault-tolerant bus arbitration logic |
| 12 (Y5) | Active-low decoded output | Low when A=1, C=1, B=0; supports dual-bank memory selection in flight computers |
| 13 (Y6) | Active-low decoded output | Low when B=1, C=1, A=0; routes control signals in radiation-hardened telemetry interfaces |
| 14 (Y7) | Active-low decoded output | Low when A=B=C=1; final output for highest-priority subsystem enable or watchdog trigger |
| 15 (GND) | Ground reference | Primary signal return; requires low-inductance connection to chassis ground in EMI-sensitive designs |
| 16 (VCC) | Power supply | +5 V supply input; requires local 0.1 µF ceramic decoupling adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Triple enable architecture | Enables 24-line decoding without external inverters and 32-line with only one inverter - reduces board area and failure points in safety-critical systems |
| MIL-PRF-38535 Class V qualification | Full QML screening including temperature cycling, mechanical shock, and long-term reliability testing - mandated for DoD procurement |
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels without level-shifting - preserves timing integrity in mixed-technology avionics backplanes |
| Latch-up immunity >250 mA | Withstands transient current surges during power sequencing or ESD events - critical for unattended ground sensor nodes |
| ESD protection (2000-V HBM) | Meets MIL-STD-883 Method 3015.7 - ensures survivability during handling and field maintenance in desert or maritime environments |
Applications
| Avionics Data Bus Decoder | Rad-Hard Telemetry Interface |
|---|---|
Use Scenario: Decoding ARINC 429 or MIL-STD-1553B subsystem addresses in flight control computers where thermal cycling and vibration are extreme. IC Role / Device Role / Timing Role: Address decoder for selecting up to eight remote terminal transceivers or sensor interface ICs via parallel control lines. Use Value: Sub-10 ns propagation delay ensures deterministic response within tight 1553B command-response windows; −55°C to +125°C rating maintains functionality across stratospheric to ground-level operations. | Use Scenario: Routing telemetry packet headers to dedicated processing channels in satellite payload modules exposed to total ionizing dose (TID). IC Role / Device Role / Timing Role: Demultiplexer enabling time-division multiplexed sensor data streams to separate ADCs or RF modulators. Use Value: Triple-enable logic allows synchronized channel gating under radiation-induced soft-error mitigation protocols; QML Class V screening guarantees post-radiation parametric stability. |
| Ground-Based Radar Control | Missile Guidance Logic Unit |
Use Scenario: Selecting among 8 antenna array beam-forming modules in mobile radar systems operating in desert sandstorms and high humidity. IC Role / Device Role / Timing Role: Memory-mapped I/O decoder for FPGA-configurable RF front-end registers. Use Value: Hermetic CDIP package prevents moisture ingress and corrosion; TTL compatibility ensures reliable handshaking with legacy radar controller ASICs. | Use Scenario: Enabling redundant inertial measurement unit (IMU) channels during mid-course guidance phase under high-G acceleration and thermal shock. IC Role / Device Role / Timing Role: Fault-isolation decoder that activates only one IMU path while monitoring others for divergence. Use Value: Latch-up immunity >250 mA prevents single-event latch-up (SEL) induced lockup; triple-enable architecture supports voting logic reset coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-to-8 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AHCT138FK | LCCC-20 package; 20-pin ceramic leadless chip carrier with different pinout and thermal profile (θJA ≈ 100°C/W vs CDIP's 67°C/W) | Used where board space is constrained but thermal management via conduction is preferred; requires redesign of footprint and layout | Select when mounting on metal-core PCBs or cold plates; verify mechanical stress relief for vibration-prone mounts |
| 5962-9851701QFA | CFP-16 package; flatpack with gull-wing leads, same pin count but different lead pitch (0.050″ vs CDIP's 0.100″) and lower mass | Favored in missile fin actuator assemblies where weight reduction and aerodynamic profile are critical | Choose for SWaP-C–optimized guidance electronics; confirm reflow profile compatibility with CFP's thinner leadframe |
Compared with SNJ54AHCT138FK and 5962-9851701QFA, the 5962-9851701QEA offers superior mechanical rigidity and proven field reliability in high-vibration airframes, while maintaining identical logic function and timing - making it the default choice for retrofitting legacy CDIP-based defense platforms.
Availability
5962-9851701QEA is available at Aetrix Electronics and suitable for avionics data routing, rad-hard telemetry interfaces, ground-based radar control, and missile guidance logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-9851701QEA 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 U.S.-based semiconductor manufacturer with leadership in analog, embedded processing, and high-reliability military ICs, serving defense, aerospace, and industrial markets since 1930.
The SN54AHCT138 family was developed to meet stringent MIL-PRF-38535 Class V requirements for high-speed, radiation-tolerant address decoding in mission-critical systems where failure is not an option.
FAQ
What is the operating temperature range of the 5962-9851701QEA?
The 5962-9851701QEA is rated for −55°C to +125°C operation, fully qualified per MIL-PRF-38535 Class V for deployment in extreme environmental conditions such as jet engine bays, satellite payloads, and artillery fire control systems. This range is validated through temperature cycling, steady-state burn-in, and parametric testing at both extremes - ensuring consistent 5962-9851701QEA performance across the full military specification envelope.
Does the 5962-9851701QEA support TTL-level inputs?
Yes, the 5962-9851701QEA features TTL-voltage compatible inputs with guaranteed VIH ≥2.0 V and VIL ≤0.8 V at VCC = 4.5 V to 5.5 V, enabling direct interfacing with legacy 5 V TTL logic families without level shifters. This compatibility is verified across the full −55°C to +125°C range and is a key requirement for backward integration into existing military hardware - preserving timing margins and reducing design risk for the 5962-9851701QEA.
How many enable inputs does the 5962-9851701QEA have, and what are their logic polarities?
The 5962-9851701QEA has three enable inputs: G1 (active-high), G2A (active-low), and G2B (active-low). All three must be simultaneously asserted - G1 high and both G2A/G2B low - for any Y0–Y7 output to respond to address inputs A, B, C. This configuration enables efficient cascading of multiple 5962-9851701QEA devices for larger decoding trees without external inversion logic.
What is the typical propagation delay of the 5962-9851701QEA at 5 V supply?
The 5962-9851701QEA exhibits a typical propagation delay of 7.6 ns from address inputs (A/B/C) to any Y output under test conditions of VCC = 5 V, CL = 15 pF, and TA = 25°C. This value is confirmed in the official TI SCLS266M datasheet and applies identically to the 5962-9851701QEA variant, supporting high-speed memory decoding in systems with sub-100 MHz clock domains.
Is the 5962-9851701QEA RoHS-compliant?
The 5962-9851701QEA is not RoHS-compliant; it is a legacy military-spec device manufactured with leaded solder and packaging materials meeting MIL-STD-883 requirements rather than EU RoHS directives. Its CDIP-J package uses SnPb finish and ceramic construction - essential for hermeticity and thermal reliability in defense applications where lead-free alternatives are not yet qualified. Customers requiring RoHS compliance should evaluate commercial SN74AHCT138 variants instead of the 5962-9851701QEA.
5962-9851701QEA 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:
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- Voltage - Supply:
- -
- Operating Temperature:
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- Grade:
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5962-9851701QEA FAQ
1.How can I place an order for 5962-9851701QEA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9851701QEA 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 5962-9851701QEA reliable?
The price and inventory of 5962-9851701QEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9851701QEA is usually 5 days.
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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 5962-9851701QEA?
For technical support, including 5962-9851701QEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9851701QEA requirements.
6.How does Aetrix verify that 5962-9851701QEA is sourced from the original manufacturer or authorized distributors?
All 5962-9851701QEA 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 5962-9851701QEA meets industry standards.
7.What is the process for return or replacement of 5962-9851701QEA?
All 5962-9851701QEA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9851701QEA, 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 5962-9851701QEA part is unused and in its original packaging.
Return procedure for 5962-9851701QEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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