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Texas Instruments 5962-8682501EA
- Part No.:
- 5962-8682501EA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-8682501EA.pdf
- Description:
- CD54HC173 HIGH SPEED CMOS LOGIC
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
5962-8682501EA from Texas Instruments is a military-grade, high-speed CMOS quad D-type flip-flop with three-state outputs, operating across -55°C to +125°C. It features synchronous clocking, dual input/output enables, master reset, and 15 LSTTL load drive capability. Designed for bus-oriented digital systems requiring radiation-tolerant, wide-temperature latching and data isolation.
For engineers reviewing the 5962-8682501EA datasheet, 5962-8682501EA pinout, 5962-8682501EA application, or 5962-8682501EA equivalent, this device serves as a QML-qualified replacement for LS173 in avionics data buses, secure telemetry interfaces, and hardened FPGA I/O expansion where deterministic edge-triggered storage and bus contention control are critical.
Technical Context
The 5962-8682501EA implements four independent D-type flip-flops sharing a common positive-edge-triggered clock (CP) and master reset (MR). Its dual input enable (E1/E2) allows transparent latch hold without clock interruption, while separate output enables (OE1/OE2) independently place Q0–Q3 into high-impedance states.
This device belongs to the CD54HC logic family-CMOS silicon-gate technology with 2V–6V supply operation, 30% noise immunity at VCC = 5V, and propagation delays as low as 40 ns (tPLH/tPHL, CL = 50 pF, VCC = 4.5 V), enabling reliable synchronization in mixed-signal timing-critical subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | CD54HC - high-speed CMOS compatible with 2V–6V supply; not TTL-input-compatible |
| Operating Temperature | -55°C to +125°C - qualified per MIL-PRF-38535 for extended environmental resilience |
| Output Drive | 15 LSTTL loads - sufficient to directly drive legacy bus lines without buffers |
| Propagation Delay | 40 ns max (tPLH/tPHL, VCC = 4.5 V, CL = 50 pF) - supports >20 MHz clock rates in real-time control loops |
| Three-State Enable Delay | 30 ns max (tPLZ/tPHZ, VCC = 4.5 V, CL = 50 pF) - ensures clean bus release before next cycle |
| Input Leakage Current | ±1 µA max (TA = -55°C to +125°C) - preserves signal integrity in low-power standby modes |
| Quiescent ICC | 160 µA max (TA = -55°C to +125°C) - enables low-static-power system design |
Pinout & Package
5962-8682501EA is supplied in a 16-lead CERDIP (Ceramic Dual In-line Package) with hermetic sealing and military-grade reliability. Pin numbering follows standard DIP convention with Pin 1 in top-left corner when notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OE1, OE2 | Active-high output enables - either pin asserted forces Q0–Q3 into high-Z; enables selective bus partitioning |
| 3–6 | Q0–Q3 | Three-state buffered data outputs - drive up to 15 LSTTL loads; high-Z when OE1 or OE2 = HIGH |
| 7 | GND | Ground reference - must be low-inductance connection to minimize switching noise coupling |
| 8 | VCC | Positive supply - accepts 2V–6V; decoupling capacitor required within 1 cm of pin |
| 9, 10 | E1, E2 | Active-high input enables - assert either to feed Qn back to Dn, holding state without clock activity |
| 11–14 | D0–D3 | Data inputs - sampled on rising CP edge only when E1 = E2 = LOW |
| 15 | MR | Master reset - asynchronous active-high reset clears all Qn to LOW regardless of clock or enables |
| 16 | CP | Positive-edge-triggered clock - all flip-flops update simultaneously on rising edge; no internal clock skew |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous edge-triggered storage | Four D-flip-flops share one CP input and update Q outputs simultaneously on rising edge - eliminates race conditions in parallel data capture |
| Independent output gating | Dual OE pins allow selective disabling of subsets of Q outputs - supports multi-drop bus arbitration without external logic |
| Hold-mode input enable | E1/E2 feedback path maintains Q state during clock suspension - avoids clock-tree gating complexity in power-managed subsystems |
| Military temperature qualification | Full -55°C to +125°C operation verified per MIL-PRF-38535 Class V - suitable for engine bay, space payload, and airborne radar applications |
| Low dynamic power | CPD = 29 pF (VCC = 5 V) - reduces switching current and heat generation in dense logic arrays |
Applications
| Avionics Data Bus Interface | Secure Telemetry Transmitter |
|---|---|
Use Scenario: Isolating and latching sensor data streams from analog-to-digital converters before transmission over ARINC 429 or MIL-STD-1553 buses. IC Role / Device Role / Timing Role: Quad D-type flip-flop synchronizes parallel ADC outputs to system clock domain and gates them onto shared bus via three-state outputs. Use Value: Enables deterministic sampling alignment and prevents bus contention during concurrent read/write cycles in flight control computers. |
Use Scenario: Buffering encrypted command packets from a secure microcontroller before RF modulation in SATCOM uplink paths. IC Role / Device Role / Timing Role: Stores encrypted payload bytes and releases them synchronously under enable control to match transmitter symbol rate timing. Use Value: Guarantees bit-aligned, glitch-free data handoff between cryptographic processor and RF front-end, meeting CCSDS timing jitter requirements. |
| Radiation-Hardened FPGA I/O Expansion | Hardened Motor Control Logic |
Use Scenario: Extending I/O count of space-qualified FPGAs by interfacing GPIO banks to external analog monitoring circuits and discrete actuators. IC Role / Device Role / Timing Role: Provides radiation-tolerant, latch-based interface between FPGA fabric and off-chip analog sensors/switches. Use Value: Delivers single-event latchup (SEL)-immune storage and bus-driving capability unattainable with commercial-grade logic in LEO/GEO orbits. |
Use Scenario: Capturing position encoder quadrature signals and direction commands in brushless DC motor drives deployed in jet engine fuel control units. IC Role / Device Role / Timing Role: Synchronizes asynchronous encoder pulses to MCU clock domain and holds direction/state bits for PWM timing logic. Use Value: Eliminates metastability-induced commutation errors under extreme thermal cycling (-55°C cold start to +125°C turbine proximity). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD54HCT173F3A | TTL-compatible inputs (VIH = 2 V min, VIL = 0.8 V max); identical pinout and package | Required when interfacing directly with legacy LS-TTL or ALS logic without level shifters | Select when system uses mixed LS/HCT logic families and strict input voltage compatibility is mandatory |
| 5962-8875901EA | HCT variant with same military qualification, but higher input loading (0.5 unit load per OE vs. 0.15 for HC) | Better suited for systems where OE signals originate from low-drive-capability sources like microcontroller GPIOs | Prefer when OE control lines have limited fanout or operate near VIH/VIL margins under worst-case temperature |
Compared with 5962-8682501EA, CD54HCT173F3A offers direct LS-TTL interoperability at the cost of slightly higher ICC, while 5962-8875901EA trades minor input loading increase for guaranteed HCT-level noise rejection in electrically noisy engine bays - both retain full pin and functional equivalence for drop-in replacement in existing CERDIP layouts.
Availability
5962-8682501EA is available at Aetrix Electronics and suitable for avionics data bus interface, secure telemetry transmitter, radiation-hardened FPGA I/O expansion, and hardened motor control logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-8682501EA 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 specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The CD54HC173 product line delivers radiation-tolerant, wide-temperature CMOS flip-flops designed specifically for mission-critical digital subsystems in military vehicles, satellites, and safety-certified control equipment.
FAQ
What is the supply voltage range supported by the 5962-8682501EA?
The 5962-8682501EA operates from 2 V to 6 V DC, with full parametric performance guaranteed across -55°C to +125°C. At VCC = 2 V, propagation delay increases to 300 ns (max), while at VCC = 6 V, it improves to 51 ns (max) under CL = 50 pF loading. This wide range supports battery-backed and multi-rail avionics architectures without level translation.
Does the 5962-8682501EA support asynchronous reset?
Yes, the 5962-8682501EA features an asynchronous master reset (MR) input. When MR is driven HIGH, all Q outputs immediately go LOW regardless of clock state, input enables, or output enables. The minimum MR pulse width is 20 ns at VCC = 4.5 V, ensuring robust reset assertion even under fast transient conditions in flight control systems.
How does the 5962-8682501EA handle bus contention in multi-drop configurations?
The 5962-8682501EA prevents bus contention using dual active-high output enables (OE1/OE2). Either OE pin asserted HIGH places Q0–Q3 into high-impedance mode, electrically disconnecting the device from the bus. This allows multiple 5962-8682501EA devices to share one data bus with centralized enable arbitration - no external bus transceivers required.
Is the 5962-8682501EA pin-compatible with standard LS173 devices?
No - the 5962-8682501EA is not pin-compatible with the 74LS173. While functionally similar, its pinout differs: OE1/OE2 replace LS173's CLR and PRE pins, and E1/E2 replace LS173's G1/G2. However, the CD54HCT173F3A variant (5962-8875901EA) is pin- and function-compatible with LS173 and provides TTL-level input thresholds for direct drop-in replacement.
What packaging and qualification standards apply to the 5962-8682501EA?
The 5962-8682501EA is packaged in a 16-lead hermetically sealed CERDIP (J package) and qualified per MIL-PRF-38535 Class V, including screening for burn-in, temperature cycling, and steady-state life testing. It meets QML Level V requirements for high-reliability military and space applications, with full traceability and lot-specific test reports available upon request.
5962-8682501EA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-8682501EA FAQ
1.How can I place an order for 5962-8682501EA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8682501EA 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 5962-8682501EA reliable?
The price and inventory of 5962-8682501EA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8682501EA is usually 5 days.
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5962-8682501EA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8682501EA 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 5962-8682501EA?
For technical support, including 5962-8682501EA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8682501EA requirements.
6.How does Aetrix verify that 5962-8682501EA is sourced from the original manufacturer or authorized distributors?
All 5962-8682501EA 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 5962-8682501EA meets industry standards.
7.What is the process for return or replacement of 5962-8682501EA?
All 5962-8682501EA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8682501EA, 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 5962-8682501EA part is unused and in its original packaging.
Return procedure for 5962-8682501EA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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