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Texas Instruments 5962-8970801EA
- Part No.:
- 5962-8970801EA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-8970801EA.pdf
- Description:
- CD54HCT258 HIGH SPEED CMOS LOGIC
- Quantity:
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Inventory:315
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Product details
Overview
5962-8970801EA from Texas Instruments is a military-grade quadruple 2-line-to-1-line selector/multiplexer with 3-state outputs, operating from 4.5 V to 5.5 V, rated for –55°C to 125°C, and featuring balanced propagation delays (typ. 11 ns at 5 V, CL = 15 pF) and TTL-compatible inputs - used in high-reliability bus multiplexing in avionics and defense data acquisition systems.
For engineers reviewing the 5962-8970801EA datasheet, 5962-8970801EA pinout, 5962-8970801EA application, or 5962-8970801EA equivalent, this page delivers verified electrical specs, military-qualified thermal and timing behavior, CDIP-16 package mapping, and direct alternatives for QML-38535-compliant system design.
Technical Context
This device implements four independent 2:1 multiplexers sharing a common 3-state output-enable (G) input. Each multiplexer selects between two data inputs (A/B) using a single select line (A/B), with output polarity matching input logic state. All logic is HCT-family CMOS, ensuring TTL-voltage compatibility while reducing power versus LS-TTL.
Operation requires all unused inputs tied to VCC or GND per TI SCBA004 guidance. The 3-state outputs are actively disabled when G is high, presenting high-impedance (IOZ ≤ ±10 µA max) to preserve bus integrity. Power-up/down sequencing mandates G pulled to VCC via external resistor to guarantee defined high-Z state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - supports standard 5-V logic rails with ±10% tolerance for supply variation in ruggedized systems. |
| Operating Temp | –55°C to 125°C - qualified per MIL-PRF-38535 for extended environmental operation in airborne and space platforms. |
| tpd (A/B → Y) | 11 ns typ. at 5 V, CL = 15 pF - enables reliable 45-MHz bus switching in real-time control loops. |
| VOH / VOL | 3.98 V min / 0.26 V max at IOH = –6 mA / IOL = 6 mA - ensures robust noise margin driving 10 LS-TTL loads. |
| ICC (quiescent) | 8 µA max at 25°C - reduces standby power in battery-backed or low-duty-cycle telemetry subsystems. |
| Input Compatibility | TTL-voltage compatible (VIH = 2 V, VIL = 0.8 V) - allows direct interfacing with legacy LS-TTL and bipolar logic without level shifters. |
| Output Type | 3-state active-low enable (G) - permits bidirectional bus sharing and eliminates contention during data arbitration. |
Pinout & Package
5962-8970801EA is supplied in a hermetically sealed ceramic dual in-line package (CDIP), designated J package per TI, with 16 leads and 0.300-inch wide body. Pin 1 is located at the top-left corner adjacent to the notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A/B Select | Common select line for all four multiplexers; determines whether A or B input appears at corresponding Y output. |
| 2–3, 5–6, 10–11, 13–14 | Data Inputs (1A/1B, 2A/2B, 3A/3B, 4A/4B) | Four pairs of complementary data sources; each pair feeds one 2:1 mux stage. |
| 4, 7, 12, 15 | Outputs (1Y, 2Y, 3Y, 4Y) | 3-state outputs; driven only when G is low; high-impedance when G is high. |
| 8 | GND | Power ground reference for all internal logic and output drivers. |
| 16 | VCC | Positive supply rail (4.5–5.5 V); powers all internal circuitry and output stages. |
| 9 | G (Output Enable) | Active-low 3-state control; must be pulled to VCC during power-up/down to prevent bus contention. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-38535 Qualified | Fully tested per QML Class V requirements including radiation hardness assurance, burn-in, and lot acceptance testing for flight-critical use. |
| 3-State Output Architecture | Enables time-multiplexed bus sharing across multiple 5962-8970801EA devices on a single data path without external bus buffers. |
| Low Dynamic Power | 49 pF typical power dissipation capacitance (Cpd) enables predictable dynamic power modeling (PD = VCC² × fi × (Cpd + CL)) for thermal budgeting. |
| TTL-Compatible Inputs | Accepts standard LS-TTL voltage thresholds (VIH ≥ 2 V, VIL ≤ 0.8 V), eliminating need for interface logic in mixed-technology backplanes. |
| Balanced Propagation Delays | Matched tpd across all four channels (±3 ns max deviation) ensures deterministic skew in synchronized data routing applications. |
Applications
| Avionics Data Bus Multiplexing | Defense System Sensor Interface |
|---|---|
Use Scenario: Consolidating analog-to-digital converter outputs from four independent sensor channels onto a shared MIL-STD-1553 or ARINC 429 data bus. IC Role / Device Role / Timing Role: 5962-8970801EA acts as a synchronous channel selector, routing time-sliced sensor samples under FPGA-controlled A/B and G signals. Use Value: Enables deterministic latency (≤14 ns max tpd) and zero bus contention during channel handoff, critical for closed-loop flight control sampling. | Use Scenario: Interfacing discrete status signals (e.g., launch enable, arming, fault flags) from multiple weapon subsystems to a central mission computer. IC Role / Device Role / Timing Role: 5962-8970801EA serves as a hardened signal combiner, selecting one of two redundant status lines per subsystem under command of a secure microcontroller. Use Value: Provides radiation-tolerant, high-impedance isolation (IOZ ≤ ±10 µA) when disabled - preventing fault propagation across safety-critical boundaries. |
| Spacecraft Telemetry Formatter | Ground Test Equipment Signal Routing |
Use Scenario: Aggregating housekeeping telemetry (voltage, temperature, current) from four power regulation modules into a unified serial telemetry stream. IC Role / Device Role / Timing Role: 5962-8970801EA functions as a scan controller, cycling through module data under watchdog-timed G pulses to ensure periodic health reporting. Use Value: Guaranteed operation at –55°C to 125°C eliminates derating concerns in unheated satellite bays or high-power dissipation enclosures. | Use Scenario: Reconfigurable signal path selection in automated test equipment (ATE) racks verifying multi-channel radar receiver front-ends. IC Role / Device Role / Timing Role: 5962-8970801EA operates as a manual or software-controlled patch panel, routing RF detector outputs to spectrum analyzers or digitizers. Use Value: 3-state outputs allow hot-swapping of test configurations without powering down the entire rack - reducing test cycle time by >30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD54HCT258F3A | Identical electrical specs, same CDIP-16 package, identical top-side marking and MIL-PRF-38535 qualification level. | No functional or application difference; both meet QML Class V for space and defense use. | Select CD54HCT258F3A if sourcing from alternate TI lot trace or distributor inventory with equivalent QML documentation. |
| SNJ54HCT258FK | Same function and pinout, but packaged in flatpack (FK) instead of CDIP; different thermal resistance (θJA ≈ 50°C/W vs. 69°C/W for CDIP). | Preferred for lower-profile PCBs or where hermetic flatpack reliability is mandated over DIP form factor. | Choose SNJ54HCT258FK only when mechanical envelope or JEDEC flatpack compliance overrides CDIP availability or thermal profile needs. |
Compared with CD54HCT258F3A, 5962-8970801EA offers identical functionality and qualification, differing only in orderable part number and traceability chain; versus SNJ54HCT258FK, it trades flatpack compactness for higher thermal resistance and established DIP socket compatibility in legacy test fixtures.
Availability
5962-8970801EA is available at Aetrix Electronics and suitable for avionics data bus multiplexing, defense system sensor interface, and spacecraft telemetry formatter applications requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for 5962-8970801EA 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 high-reliability logic solutions for aerospace, defense, and industrial markets.
The CD54HCT family delivers radiation-hardened, temperature-extended CMOS logic designed specifically for military and space applications where guaranteed operation across –55°C to 125°C and compliance with MIL-PRF-38535 are mandatory.
FAQ
What is the absolute maximum supply voltage rating for the 5962-8970801EA?
The 5962-8970801EA has an absolute maximum supply voltage (VCC) rating of –0.5 V to 7 V. Exceeding 7 V risks permanent damage, even briefly. For reliable operation, VCC must remain within the recommended range of 4.5 V to 5.5 V. This rating is validated per MIL-PRF-38535 stress testing protocols and applies across the full –55°C to 125°C operating temperature range.
Does the 5962-8970801EA require external pull-up resistors on the G (output enable) pin?
Yes - to ensure the 3-state outputs remain in high-impedance during power-up and power-down transients, the G pin of the 5962-8970801EA must be tied to VCC via an external pull-up resistor. The minimum resistance value depends on the driver's current-sinking capability, as specified in the TI datasheet SCHS276A. Failure to implement this compromises bus integrity in fault-tolerant systems.
Is the 5962-8970801EA pin-compatible with commercial-grade CD74HCT258E?
No - while the 5962-8970801EA and CD74HCT258E share identical logic function and pin numbering, they differ in package type: 5962-8970801EA uses a CDIP (J package), whereas CD74HCT258E uses a PDIP (N package). Mechanical dimensions, lead pitch, and thermal characteristics differ; PCB layout and socketing are not interchangeable without redesign.
What is the maximum capacitive load the 5962-8970801EA can drive while maintaining specified timing?
The 5962-8970801EA is characterized for load capacitances up to 50 pF, with timing parameters (e.g., tpd = 41 ns max at 4.5 V, CL = 50 pF) guaranteed across –55°C to 125°C. Driving loads >50 pF increases propagation delay nonlinearly and may violate setup/hold margins in high-speed buses; external buffering is recommended beyond this limit.
How does the input loading of the A/B select line compare to individual data inputs on the 5962-8970801EA?
Per the HCT Input Loading Table in the datasheet, the A/B select line presents 1.5 unit loads, while each A or B data input contributes 0.5 unit loads, and the G (output enable) input also draws 1.5 unit loads. One unit load equals the ∆ICC increment specified in the electrical characteristics table (360 µA max at 25°C), directly impacting total supply current in large-scale multiplexer arrays.
5962-8970801EA 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:
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- Qualification:
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- Supplier Device Package:
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5962-8970801EA FAQ
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5.How can I obtain technical support or documentation for 5962-8970801EA?
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6.How does Aetrix verify that 5962-8970801EA is sourced from the original manufacturer or authorized distributors?
All 5962-8970801EA 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 5962-8970801EA meets industry standards.
7.What is the process for return or replacement of 5962-8970801EA?
All 5962-8970801EA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8970801EA, 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 5962-8970801EA part is unused and in its original packaging.
Return procedure for 5962-8970801EA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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