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Texas Instruments 5962-9851701QFA
- Part No.:
- 5962-9851701QFA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-9851701QFA.pdf
- Description:
- SN54AHCT138 3-LINE TO 8-LINE DEC
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Product details
Overview
5962-9851701QFA from Texas Instruments is a military-grade 3-line to 8-line decoder/demultiplexer in CFP (W) package, operating from −55°C to 125°C with 5 V supply, TTL-compatible inputs, and propagation delays as low as 6.6 ns (G1→Y). It features three enable inputs (G1, G2A, G2B), eight active-low decoded outputs (Y0–Y7), and is used in high-speed memory decoding and data-routing systems requiring radiation-tolerant logic.
For engineers reviewing the 5962-9851701QFA datasheet, 5962-9851701QFA pinout, 5962-9851701QFA application, or 5962-9851701QFA equivalent, this device serves as a qualified MIL-PRF-38535 Class V decoder for aerospace avionics, secure communications infrastructure, and hardened embedded control where extended temperature range, latch-up immunity (>250 mA), and ESD robustness (2000-V HBM) are mandatory.
Technical Context
The 5962-9851701QFA implements positive-logic binary decoding with active-high G1 and active-low G2A/G2B enables, allowing cascading of multiple units without external inverters. Its architecture supports demultiplexing by using an enable input as a data line, enabling 1-to-8 signal distribution.
It uses AHCT logic family characteristics: TTL-voltage compatible inputs (VIH = 2 V, VIL = 0.8 V), CMOS-level output drive (±8 mA), and rail-to-rail output swing (VOH ≥ 3.8 V, VOL ≤ 0.44 V at VCC = 4.5–5.5 V). All parameters are tested per MIL-PRF-38535 requirements across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5 V military power rails and tolerance to supply droop. |
| Propagation Delay (G1→Y) | 6.6 ns min / 10.5 ns max at 25°C, CL = 15 pF - Enables tight timing budgets in high-speed address decode paths. |
| Output Drive Current | ±8 mA - Sufficient to drive 10 LSTTL loads or interface directly with standard logic without buffers. |
| Operating Temperature | −55°C to +125°C - Qualified for deployment in jet engine controllers, satellite payload electronics, and ground vehicle ECUs. |
| Latch-Up Immunity | >250 mA per JESD 17 - Guarantees survivability under transient overcurrent events in harsh electromagnetic environments. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - Meets MIL-STD-883 method 3015 for handling and board-level reliability. |
Pinout & Package
5962-9851701QFA is housed in a 16-pin Ceramic Flatpack (CFP-W) package with gull-wing leads, hermetically sealed for moisture resistance and long-term reliability in vacuum or high-humidity military deployments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | G2A | Active-low enable input - Must be low with G2B low and G1 high to activate decoding. |
| 2 | G2B | Active-low enable input - Dual enable structure reduces need for external inversion in cascaded systems. |
| 3 | G1 | Active-high enable input - Primary global enable; used as data input in demux mode. |
| 4 | C | MSB select input - Determines higher-order output group (Y4–Y7 vs Y0–Y3). |
| 5 | B | Mid-bit select input - Combined with A and C to uniquely select one of eight outputs. |
| 6 | A | LSB select input - Provides fine-grained output selection within each 4-output quadrant. |
| 7 | Y0 | Active-low decoded output - Asserted low when A=B=C=0 and all enables active. |
| 8 | Y1 | Active-low decoded output - Asserted low when A=1, B=C=0 and enables active. |
| 9 | Y2 | Active-low decoded output - Asserted low when B=1, A=C=0 and enables active. |
| 10 | Y3 | Active-low decoded output - Asserted low when A=B=1, C=0 and enables active. |
| 11 | Y4 | Active-low decoded output - Asserted low when C=1, A=B=0 and enables active. |
| 12 | Y5 | Active-low decoded output - Asserted low when C=A=1, B=0 and enables active. |
| 13 | Y6 | Active-low decoded output - Asserted low when C=B=1, A=0 and enables active. |
| 14 | Y7 | Active-low decoded output - Asserted low when A=B=C=1 and enables active. |
| 15 | VCC | Positive supply terminal - Requires local 0.1 µF ceramic decoupling adjacent to pin. |
| 16 | GND | Ground reference - Shared return path for all inputs, outputs, and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Compatible Inputs | Accepts standard 5 V TTL logic thresholds (VIH = 2 V, VIL = 0.8 V) without level-shifting in mixed-technology systems. |
| Three Enable Inputs | Enables 24-line decoding without external inverters and 32-line decoding with only one inverter - reduces gate count and board area. |
| MIL-PRF-38535 Class V Qualification | Full screening per military specification including burn-in, temperature cycling, and parametric testing across −55°C to +125°C. |
| High-Speed Propagation | Sub-11 ns typical delay allows integration into 80–100 MHz address decode trees without adding pipeline stages. |
| Robust Output Structure | CMOS totem-pole outputs deliver symmetrical rise/fall times and support wired-OR configurations via external pull-ups. |
Applications
| Avionics Flight Control Unit | Satellite Command Decoder |
|---|---|
|
Use Scenario: Decoding discrete command addresses from a 16-bit bus to activate specific actuator driver ICs in real-time flight control loops. IC Role / Device Role / Timing Role: Address decoder that selects one of eight hydraulic valve drivers per cycle, synchronized to 10 MHz system clock. Use Value: Sub-11 ns propagation ensures command latency remains below 2% of 100 µs control cycle, preserving closed-loop stability. |
Use Scenario: Routing telemetry packet destinations from a central processor to eight independent subsystem monitors (power, thermal, comms, etc.). IC Role / Device Role / Timing Role: Demultiplexer converting serial command stream into parallel enable signals for concurrent subsystem polling. Use Value: Active-low outputs interface directly with enable pins of radiation-hardened ADCs and DACs, eliminating level-shifter components. |
| Secure Tactical Radio Baseband | Armored Vehicle Engine Management |
|
Use Scenario: Selecting among eight encryption algorithm modules based on received key negotiation handshake bits. IC Role / Device Role / Timing Role: Security-mode selector that gates clock and data paths to cryptographic accelerators during key exchange. Use Value: Three enable inputs allow simultaneous validation of authentication token, session ID, and integrity check before enabling any module. |
Use Scenario: Translating 3-bit sensor fusion results (e.g., oil temp + pressure + RPM band) into discrete fault isolation signals for dashboard warning matrix. IC Role / Device Role / Timing Role: Fault-code mapper converting microcontroller GPIO outputs into dedicated LED driver enables. Use Value: −55°C to +125°C operation ensures reliable decoding inside engine bay enclosures without derating or cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-line to 8-line decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AHCT138J | Same AHCT logic, CDIP package (16-pin), identical electrical specs, but larger footprint and through-hole mounting. | Preferred for legacy board rework or prototyping where socket-based testing is required. | Select when mechanical compatibility with existing DIP sockets or manual soldering capability is prioritized over weight or density. |
| 5962-9851701Q2A | LCCC package (20-pin), same military spec, but includes two unused pins and different thermal profile (θJA ≈ 100°C/W vs CFP's ~70°C/W). | Used where board-level hermetic sealing is mandated and surface-mount assembly with fine-pitch leads is available. | Choose when PCB layout supports land-grid array pads and thermal management includes conductive epoxy attachment. |
Compared with SNJ54AHCT138J and 5962-9851701Q2A, the 5962-9851701QFA offers optimal balance of high-density surface-mount packaging, lowest thermal resistance among military variants, and direct drop-in replacement for legacy CFP-based designs without footprint redesign.
Availability
5962-9851701QFA is available at Aetrix Electronics and suitable for avionics flight control units, satellite command decoders, and armored vehicle engine management systems requiring stable component supply under ITAR-controlled logistics and AS9120B traceability.
Supply support for 5962-9851701QFA 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 specializing in analog, embedded processing, and high-reliability logic solutions for defense, space, and industrial markets.
The 5962-9851701QFA belongs to TI's military logic portfolio, designed specifically for high-speed, radiation-tolerant decoding in mission-critical systems where failure is not an option.
FAQ
What is the maximum operating temperature range for the 5962-9851701QFA?
The 5962-9851701QFA is rated for operation from −55°C to +125°C, fully qualified per MIL-PRF-38535 Class V screening requirements. This range is validated across all electrical parameters including propagation delay, output drive, and enable threshold levels - making it suitable for jet turbine compartments and space-exposed electronics.
Does the 5962-9851701QFA require external pull-up resistors on its outputs?
No, the 5962-9851701QFA features totem-pole CMOS outputs capable of actively driving both high and low states. Pull-ups are unnecessary unless implementing wired-OR logic with other open-drain devices - in which case 4.7 kΩ resistors to VCC are recommended per TI application guidance.
Can the 5962-9851701QFA be used as a demultiplexer?
Yes, the 5962-9851701QFA supports demultiplexing by using one enable input (e.g., G1) as the data line while holding the other two enables active and applying select bits to A, B, and C. This configures it as a 1-to-8 data router with active-low outputs, as confirmed in the function table and application notes.
Is the 5962-9851701QFA RoHS compliant?
The 5962-9851701QFA is exempt from RoHS lead restrictions under EU Directive 2011/65/EU Annex III, as permitted for high-melting-point solders in military and aerospace applications. Its CFP-W package uses leaded solder finish per MIL-STD-1276, ensuring long-term interconnect reliability under thermal cycling.
How many 5962-9851701QFA devices are needed to implement a 32-line decoder?
Four 5962-9851701QFA devices are required for a full 32-line decoder: three units decode the lower 3 bits (A0–A2) to generate eight groups, and the fourth decodes the upper 2 bits (A3–A4) to enable one of four groups - requiring only one external inverter as documented in Figure 3 of the datasheet.
5962-9851701QFA 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:
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- Mounting Type:
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- Supplier Device Package:
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5962-9851701QFA FAQ
1.How can I place an order for 5962-9851701QFA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9851701QFA 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 5962-9851701QFA reliable?
The price and inventory of 5962-9851701QFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9851701QFA is usually 5 days.
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Once your 5962-9851701QFA 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 5962-9851701QFA?
For technical support, including 5962-9851701QFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9851701QFA requirements.
6.How does Aetrix verify that 5962-9851701QFA is sourced from the original manufacturer or authorized distributors?
All 5962-9851701QFA 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 5962-9851701QFA meets industry standards.
7.What is the process for return or replacement of 5962-9851701QFA?
All 5962-9851701QFA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9851701QFA, 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 5962-9851701QFA part is unused and in its original packaging.
Return procedure for 5962-9851701QFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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