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Texas Instruments 5962-8875901EA
- Part No.:
- 5962-8875901EA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-8875901EA.pdf
- Description:
- CD54HCT173 HIGH SPEED CMOS LOGIC
- Quantity:
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Product details
Overview
5962-8875901EA from Texas Instruments is a high-speed CMOS quad D-type flip-flop with three-state outputs, designed for bus-oriented digital systems requiring synchronous data latching and controlled bus driving. It features 16-pin CERDIP packaging, -55°C to +125°C military-grade temperature operation, 4.5V–5.5V supply range (HCT logic), and supports up to 60 MHz clock frequency at 5V with 15 LSTTL load drive capability.
For engineers reviewing the 5962-8875901EA datasheet, 5962-8875901EA pinout, 5962-8875901EA application, or 5962-8875901EA equivalent, this device serves as a radiation-tolerant, high-reliability alternative to LS TTL flip-flops in avionics, defense computing, and space-qualified data acquisition subsystems where bus isolation, deterministic edge-triggered timing, and wide-temperature stability are critical.
Technical Context
The 5962-8875901EA implements four independent D-type edge-triggered flip-flops sharing a common positive-edge clock (CP) and master reset (MR), with dual output enable controls (OE1, OE2) enabling high-impedance state on all Q outputs. Its HCT logic family ensures direct compatibility with standard LS TTL inputs while maintaining CMOS power efficiency.
Input enables (E1, E2) allow transparent latch-hold behavior without disrupting the clock signal, and the buffered three-state outputs support bidirectional bus interfacing. Propagation delays are tightly balanced (tPLH/tPHL ≤ 60 ns @ VCC = 4.5V, CL = 50 pF), and setup/hold times are specified down to 0 ns for E-to-clock and data-to-clock paths under military temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | HCT - compatible with LS TTL input thresholds (VIH ≥ 2 V, VIL ≤ 0.8 V) and drives 15 LSTTL loads |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures stable operation across MIL-STD-704A aircraft power rails |
| Operating Temperature | -55°C to +125°C - qualified per MIL-PRF-38535 Class K for extended environmental resilience |
| Max Clock Frequency | 60 MHz @ CL = 15 pF - supports high-throughput data capture in real-time control loops |
| Propagation Delay (CP→Q) | ≤ 60 ns @ VCC = 4.5 V, -55°C to +125°C - guarantees deterministic timing in synchronous bus arbitration |
| Three-State Enable Delay | tPLZ/tPHZ ≤ 45 ns @ VCC = 4.5 V - enables fast bus turnaround in time-critical multiplexed architectures |
| Input Capacitance | 10 pF - minimizes loading on preceding drivers in high-density backplane designs |
Pinout & Package
5962-8875901EA is supplied in a 16-lead Ceramic Dual In-line Package (CERDIP), hermetically sealed for high-reliability military and aerospace applications. The package conforms to JEDEC MO-001AA and features gold-plated leads with 0.3-inch body width and 0.1-inch lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 (OE1, OE2) | Output Enable Inputs | Active-high enables three-state output drivers; either pin high forces Q0–Q3 into high-Z mode |
| 3–6 (Q0–Q3) | Registered Data Outputs | Edge-triggered latched outputs; driven low/high or placed in high-impedance per OE1/OE2 state |
| 7 (GND) | Ground Reference | Power return path for logic and output stages; requires low-inductance connection in noise-sensitive systems |
| 8 (VCC) | Positive Supply | 4.5–5.5 V DC supply; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin |
| 9 (MR) | Master Reset Input | Asynchronous active-high reset; forces all Q outputs low regardless of clock or enable states |
| 10–13 (D0–D3) | Data Inputs | Synchronously latched on rising CP edge; hold time = 0 ns simplifies timing closure in legacy bus designs |
| 14 (CP) | Clock Input | Positive-edge triggered; minimum pulse width = 24 ns @ -55°C to +125°C ensures robust edge detection |
| 15, 16 (E1, E2) | Input Enable Inputs | Active-high enables feedback path from Q to D; maintains current state without clock interruption |
Key Features
| Feature | Design Value |
|---|---|
| Three-state buffered outputs | Drives 15 LSTTL loads while supporting bus contention-free sharing across multiple devices |
| Gated input and output enables | E1/E2 and OE1/OE2 provide independent control over data flow and bus access without clock gating |
| Military temperature range | -55°C to +125°C operation validated per MIL-PRF-38535 Class K screening requirements |
| Low power consumption | ICC ≤ 160 µA max @ -55°C to +125°C reduces thermal load in sealed avionics enclosures |
| LS TTL input compatibility | VIL ≤ 0.8 V and VIH ≥ 2.0 V enable direct interface with legacy 74LS-series controllers and peripherals |
Applications
| Avionics Data Bus Interface | Secure Military Communication Controller |
|---|---|
|
Use Scenario: Interfacing flight computer registers to ARINC 429 or MIL-STD-1553B data buses with strict timing and isolation requirements. IC Role / Device Role / Timing Role: Synchronizes parallel register data to serial bus timing domains while enabling/disabling bus drivers during arbitration cycles. Use Value: Three-state outputs prevent bus contention during multi-node transmissions; 60 MHz clock support accommodates high-rate sensor telemetry bursts. |
Use Scenario: Implementing tamper-resistant key storage and encryption state machines in secure crypto modules deployed in tactical radios. IC Role / Device Role / Timing Role: Latches cryptographic control signals and status flags under hardened clock/reset supervision with zero hold-time margin. Use Value: MR input provides hardware-level reset for fault recovery; -55°C to +125°C rating ensures reliability in unheated vehicle-mounted deployments. |
| Spacecraft Onboard Computer I/O Expansion | Nuclear Power Plant Safety Logic Module |
|
Use Scenario: Expanding GPIO capacity in radiation-hardened FPGAs used for satellite payload command decoding and telemetry formatting. IC Role / Device Role / Timing Role: Buffers and isolates FPGA I/O pins from external sensors/actuators via three-state bus drivers synchronized to system clock. Use Value: CERDIP packaging resists single-event latchup (SEL); propagation delay consistency (<60 ns) ensures deterministic interrupt latency. |
Use Scenario: Building fail-safe interlock logic in reactor protection systems where deterministic response time and long-term reliability are mandated. IC Role / Device Role / Timing Role: Stores safety-critical enable/disable states for shutdown actuators with asynchronous MR override for emergency tripping. Use Value: Qualified per MIL-PRF-38535 Class K guarantees 10+ year operational life; input leakage <±1 µA prevents spurious triggering in high-impedance circuits. |
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 |
|---|---|---|---|
| CD54HC173F3A | HC logic family: 2V–6V supply, VIH/VIL referenced to VCC; lower drive (10 LSTTL loads) | Used where wider voltage flexibility and lower power are prioritized over LS TTL compatibility | Select when interfacing with mixed-voltage systems or battery-powered subsystems operating below 4.5 V |
| 5962-8682501EA | Same CERDIP package and military qualification, but HC variant (not HCT); lacks LS TTL input compatibility | Deployed in non-LS legacy interfaces where input threshold matching is not required | Choose only if existing design uses HC-level inputs and no LS TTL components are present on the same bus |
Compared with CD54HC173F3A and 5962-8682501EA, the 5962-8875901EA uniquely combines LS TTL input compatibility, 15-load drive strength, and full MIL-PRF-38535 Class K qualification-making it the sole option for retrofitting LS-based avionics buses with radiation-tolerant CMOS while preserving pin-level and timing equivalence.
Availability
5962-8875901EA is available at Aetrix Electronics and suitable for avionics data bus interface, secure military communication controller, spacecraft onboard computer I/O expansion, and nuclear power plant safety logic module applications requiring stable component supply across extended lifecycle programs.
Supply support for 5962-8875901EA 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 industrial, automotive, aerospace, and defense markets.
The 5962-8875901EA belongs to TI's military-grade HCT logic product line, engineered specifically for high-integrity digital control systems where LS TTL interoperability, extreme temperature resilience, and long-term supply assurance are mandatory.
FAQ
What is the logic family and supply voltage range of the 5962-8875901EA?
The 5962-8875901EA is an HCT-type CMOS device with a supply voltage range of 4.5 V to 5.5 V. It is fully compatible with standard LS TTL input voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), enabling direct replacement of 74LS173 in legacy military and avionics systems without level-shifting circuitry. This specification is verified across the full -55°C to +125°C operating range.
Is the 5962-8875901EA pin-compatible with the commercial CD74HCT173 series?
Yes, the 5962-8875901EA shares identical pinout and functionality with the CD74HCT173, including all 16-pin assignments (CP, MR, D0–D3, Q0–Q3, OE1/OE2, E1/E2, VCC, GND). However, it is packaged in hermetic CERDIP and qualified to MIL-PRF-38535 Class K, whereas commercial versions use PDIP or SOIC packages without military screening.
What is the maximum clock frequency supported by the 5962-8875901EA under worst-case conditions?
The 5962-8875901EA supports a maximum clock frequency of 60 MHz when loaded with 15 pF and operated at VCC = 5 V and TA = 25°C. Under worst-case military temperature extremes (-55°C to +125°C) and VCC = 4.5 V, the guaranteed fMAX is 13 MHz per switching specifications in the official datasheet (SCHS158E).
Does the 5962-8875901EA include built-in electrostatic discharge (ESD) protection?
The 5962-8875901EA incorporates standard CMOS input protection diodes rated for ±20 mA DC input diode current, but it is explicitly labeled as ESD-sensitive in the datasheet. Users must follow MIL-STD-1686-compliant handling procedures-including grounded workstations, ionized air, and conductive packaging-to prevent damage during assembly and test.
How does the master reset (MR) function interact with the clock and enable inputs in the 5962-8875901EA?
The MR input is asynchronous and dominant: asserting MR high forces all Q outputs low immediately, overriding both clock edges and E1/E2 enable states. This behavior is guaranteed across the full -55°C to +125°C range with a minimum MR pulse width of 22 ns. The 5962-8875901EA datasheet confirms MR operates independently of CP, OE1, OE2, E1, and E2 logic levels.
5962-8875901EA 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:
- -
5962-8875901EA FAQ
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5.How can I obtain technical support or documentation for 5962-8875901EA?
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6.How does Aetrix verify that 5962-8875901EA is sourced from the original manufacturer or authorized distributors?
All 5962-8875901EA 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 5962-8875901EA meets industry standards.
7.What is the process for return or replacement of 5962-8875901EA?
All 5962-8875901EA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8875901EA, 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 5962-8875901EA part is unused and in its original packaging.
Return procedure for 5962-8875901EA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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