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Texas Instruments 5962-8768301FA
- Part No.:
- 5962-8768301FA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-8768301FA.pdf
- Description:
- IC DECODER/DRIVER
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Product details
Overview
5962-8768301FA from Texas Instruments is a military-grade dual 2-line-to-4-line decoder/demultiplexer in CFP (W) package, rated for –55°C to 125°C operation, with propagation delays as low as 3 ns (tPLH/tPHL), 5 V supply compatibility, and Schottky-clamped TTL inputs/outputs - designed specifically for high-speed memory decoding in aerospace and defense systems.
For engineers reviewing the 5962-8768301FA datasheet, 5962-8768301FA pinout, 5962-8768301FA application, or 5962-8768301FA equivalent, this device serves as a radiation-tolerant, temperature-hardened logic decoder where minimal propagation delay, input buffering, and dual-enable control are critical for system timing integrity in legacy military avionics and secure data routing.
Technical Context
The 5962-8768301FA implements two independent 2-to-4 decoders sharing no internal logic coupling, each with active-low enable (G) and fully buffered A/B select inputs. Its Schottky-clamped TTL architecture ensures fast switching while suppressing line ringing via integrated clamping diodes.
All inputs present only one normalized load; outputs drive ±4 mA (IOL = 4 mA, IOH = –0.4 mA) under 4.5–5.5 V supply, supporting direct interfacing with standard ALS/AS logic families without external termination. The device lacks 3-state outputs and operates exclusively in totem-pole mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALS (Advanced Low-Power Schottky) TTL - enables interoperability with 54/74-series TTL and compatibility with legacy military board designs. |
| Propagation Delay (tPLH/tPHL) | 3 ns min / 18 ns max - ensures sub-20 ns worst-case decode latency critical for synchronous memory access timing budgets. |
| Supply Voltage Range | 4.5 V to 5.5 V - supports stable operation across MIL-STD-704A power bus variations without regulation overhead. |
| Operating Temperature | –55°C to 125°C - qualified per MIL-PRF-38535 Class V for use in uncontrolled environmental zones of aircraft and ground vehicles. |
| Input Clamp Voltage (VIK) | –1.2 V - provides robust negative transient immunity on address/data lines in electrically noisy platforms. |
| Output Drive (IOL) | 4 mA at VOL ≤ 0.4 V - sufficient to directly drive multiple TTL inputs or small capacitive loads (<50 pF) without fanout buffers. |
| Absolute Max VCC | 7 V - allows safe handling during power-up sequencing or transient overvoltage events up to 40% above nominal. |
Pinout & Package
5962-8768301FA uses a 16-pin Ceramic Flatpack (CFP, package drawing W), hermetically sealed for moisture resistance and thermal stability in harsh environments. Pin numbering follows standard DIP-compatible layout with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | 1Y0, 1Y1, 1Y2, 1Y3 | Active-low decoded outputs for first decoder; asserted low when 1G = L and corresponding 1A/1B match. |
| 5, 6 | 1B, 1A | Binary select inputs for first decoder (LSB = 1A); fully buffered, Schottky-clamped, 1 normalized load. |
| 7 | 1G | Active-low enable for first decoder; doubles as data input in demux mode when used with inverted control. |
| 8 | GND | Power return reference; requires low-inductance connection to minimize ground bounce in high-speed switching. |
| 9, 10, 11, 12 | 2Y0, 2Y1, 2Y2, 2Y3 | Active-low decoded outputs for second decoder; electrically isolated from first decoder's outputs. |
| 13, 14 | 2B, 2A | Binary select inputs for second decoder; identical electrical specs and loading to pins 5–6. |
| 15 | 2G | Active-low enable for second decoder; enables independent gating or cascaded enable tree architectures. |
| 16 | VCC | +5 V supply pin; requires local 0.1 µF ceramic bypass capacitor to suppress high-frequency supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decoders | Enables simultaneous decoding of two separate 2-bit address buses without cross-talk or shared timing paths. |
| Active-low enable with data capability | Each G input functions as both chip-select and demux data line - simplifies 1-to-4 signal distribution without extra logic. |
| Schottky-clamped inputs | Suppresses ringing on long PCB traces or backplane connections, eliminating need for external termination resistors. |
| One normalized load per input | Reduces driver loading on upstream logic - supports fanout of ≥20 from compatible ALS sources without buffering. |
| MIL-PRF-38535 Class V qualification | Guarantees screening, burn-in, and lot traceability required for flight-critical and secure communication subsystems. |
Applications
| Avionics Memory Decoding | Secure Data Routing |
|---|---|
|
Use Scenario: Address decoding for dual-bank SRAM in MIL-STD-1553B interface modules operating at –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Primary address decoder translating 2-bit bank select into four discrete enable signals for parallel memory arrays. Use Value: 3 ns minimum propagation delay ensures decode completion well before 35 ns SRAM access window, eliminating wait-state insertion. |
Use Scenario: Selecting one of four encrypted payload channels in a Type 1 cryptographic module with EMI-hardened enclosure. IC Role / Device Role / Timing Role: Demultiplexer steering command streams from central controller to channel-specific cipher engines. Use Value: Dual enable inputs allow hierarchical gating - primary enable from security processor, secondary from channel health monitor - enabling fail-safe channel isolation. |
| Tactical Radio Control Logic | Missile Guidance Interface |
|
Use Scenario: Mode selection logic in software-defined radios requiring real-time reconfiguration between VHF/UHF/L-band transceivers. IC Role / Device Role / Timing Role: Decoder mapping microcontroller GPIO outputs to discrete RF front-end enable lines with glitch-free transitions. Use Value: Fully buffered inputs reject noise from nearby PA switching; Schottky clamping prevents false triggering during RF burst transmission. |
Use Scenario: Interfacing inertial measurement unit (IMU) outputs to redundant flight computers in solid-fuel missile guidance sections. IC Role / Device Role / Timing Role: Signal router selecting among four IMU sensor clusters based on health status and navigation phase. Use Value: –55°C to 125°C rating matches motor burn thermal profile; hermetic CFP package prevents condensation-induced failure during rapid ascent. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-8768301EA (SNJ54ALS139J) | Same ALS logic, identical timing and DC specs, but in 16-pin CDIP (J) package with through-hole leads. | Preferred for prototyping, manual assembly, or legacy through-hole PCBs; lacks CFP's hermeticity and thermal cycling endurance. | Select when board-level repairability or socket-based testing is required; avoid in high-vibration or high-humidity deployments. |
| 5962-87683012A (SNJ54ALS139FK) | Same functionality and temperature range, but in 20-pin LCCC (FK) package with leadless ceramic construction. | Better high-frequency performance due to lower parasitic inductance; used in radar signal processors where <10 ns skew matters. | Choose for RF-intensive subsystems or when footprint density exceeds CFP constraints; requires reflow-only assembly. |
Compared with 5962-8768301FA, the J-package 5962-8768301EA trades hermetic reliability for serviceability, while the FK-package 5962-87683012A improves RF immunity at the cost of solder joint fatigue resistance under thermal shock - all three share identical logic behavior and military temperature grading.
Availability
5962-8768301FA is available at Aetrix Electronics and suitable for avionics memory decoding, secure data routing, tactical radio control logic, and missile guidance interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-8768301FA 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 company founded in 1930, specializing in analog, embedded processing, and military-grade logic solutions with over 50 years of QML-certified product history.
The 5962-8768301FA belongs to TI's 54ALS logic family - engineered for high-reliability defense electronics where speed, temperature resilience, and long-term obsolescence mitigation are design priorities.
FAQ
What is the operating temperature range specified for the 5962-8768301FA?
The 5962-8768301FA is characterized for operation from –55°C to 125°C, meeting MIL-PRF-38535 Class V requirements. This full military temperature range is validated across all electrical parameters including propagation delay, output drive, and input thresholds - ensuring reliable function in jet engine bays, missile canisters, and satellite payloads without derating.
Does the 5962-8768301FA support 3-state outputs?
No, the 5962-8768301FA does not feature 3-state outputs. It uses standard totem-pole TTL outputs with active-high sourcing and active-low sinking capability. All outputs are always driven - either high or low - with no high-impedance state. This eliminates bus contention risks but requires careful routing in shared-bus architectures.
What package type is used for the 5962-8768301FA?
The 5962-8768301FA is supplied in a 16-pin Ceramic Flatpack (CFP) with package drawing W. It features gull-wing leads, hermetic ceramic body, and is screened per MIL-PRF-38535 for mechanical robustness, moisture resistance, and thermal cycling endurance - distinguishing it from plastic SOIC or DIP variants of the same logic function.
How many enable inputs does the 5962-8768301FA have, and what is their function?
The 5962-8768301FA has two independent active-low enable inputs: 1G for the first decoder and 2G for the second. Each functions as both chip-select and demultiplexing data input - allowing single-line control of output states when used with complementary address bits. This dual-enable architecture simplifies cascading and hierarchical gating in multi-layer decoding trees.
Is the 5962-8768301FA pin-compatible with commercial SN74ALS139 variants?
No, the 5962-8768301FA is not pin-compatible with commercial SN74ALS139 variants. While functionally identical, its CFP (W) package has different pin spacing, lead form, and thermal pad configuration than the SOIC (D) or PDIP (N) packages used for commercial versions. PCB layout, footprint, and reflow profile must be specifically designed for the W package.
5962-8768301FA 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:
- -
5962-8768301FA FAQ
1.How can I place an order for 5962-8768301FA through Aetrix?
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5.How can I obtain technical support or documentation for 5962-8768301FA?
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6.How does Aetrix verify that 5962-8768301FA is sourced from the original manufacturer or authorized distributors?
All 5962-8768301FA 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 5962-8768301FA meets industry standards.
7.What is the process for return or replacement of 5962-8768301FA?
All 5962-8768301FA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8768301FA, 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 5962-8768301FA part is unused and in its original packaging.
Return procedure for 5962-8768301FA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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