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Texas Instruments 5962-9759001QRA
- Part No.:
- 5962-9759001QRA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9759001QRA.pdf
- Description:
- SN54F374 OCTAL EDGE-TRIGGERED D-
- Quantity:
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Product details
Overview
5962-9759001QRA from Texas Instruments is a military-grade octal D-type flip-flop with 3-state bus-driving outputs, edge-triggered clocking (CLK↑), buffered output enable (OE), and full parallel data loading. It operates across −55°C to 125°C, delivers ±24 mA output drive, and supports 100 MHz clock frequency in the SN54F374 variant - used in high-reliability aerospace data latching and bidirectional bus interfacing.
For engineers reviewing the 5962-9759001QRA datasheet, 5962-9759001QRA pinout, 5962-9759001QRA application, or 5962-9759001QRA equivalent, key selection criteria include its CDIP-J package, −55°C to 125°C temperature rating, 3-state output control timing (tPZH = 11.5 ns max), and compatibility with TTL-level logic systems requiring radiation-tolerant latch functionality.
Technical Context
The 5962-9759001QRA implements eight independent edge-triggered D-type flip-flops synchronized on the positive clock transition. Its OE input enables high-impedance output states without affecting internal register retention or data loading capability - supporting hot-swap bus arbitration and multi-drop line driving.
Designed for military applications, it features TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2 V), robust absolute maximum ratings (VCC up to 7 V, VI up to 7 V), and guaranteed switching performance under full temperature range: tPLH/tPHL ≤ 8.5 ns, tPZH ≤ 11.5 ns, and fmax = 100 MHz at VCC = 5 V, TA = 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Octal D-type transparent latch with 3-state outputs - enables synchronous data capture and bus isolation in shared-data-path systems. |
| Operating Temperature | −55°C to 125°C - qualified for extended-range military and aerospace platforms where thermal cycling and reliability are critical. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL power rails and tolerant of transient droop/surge within spec. |
| Output Drive | ±24 mA (IOL = 24 mA, IOH = −3 mA) - sufficient to drive 50 Ω transmission lines or multiple TTL inputs without external buffers. |
| Propagation Delay | tPLH/tPHL ≤ 8.5 ns (CLK→Q), tPZH ≤ 11.5 ns (OE→Q) - ensures tight timing margins in high-speed control and address/data latching. |
| Input Compatibility | TTL-level (VIH = 2 V, VIL = 0.8 V) - interoperable with legacy 74LS/74F logic families without level-shifting. |
| Package Type | CDIP-J (20-pin ceramic dual in-line) - hermetically sealed, leaded package with proven long-term reliability in harsh environments. |
Pinout & Package
Ceramic Dual In-Line Package (CDIP-J), 20-pin, through-hole mount, hermetically sealed, with 0.3-inch body width and 0.1-inch lead pitch. Pin 1 identified by notch or dot; leads tin-lead plated per MIL-STD-750.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control: drives all Q outputs to high-impedance when high; no effect on internal flip-flop state. |
| 2–9 | 1D–8D | Data inputs for each of eight D-type flip-flops - sampled on CLK↑ edge and latched internally. |
| 10 | GND | Power ground reference for logic and output stages - must be low-inductance connection for noise immunity. |
| 11–18 | 1Q–8Q | True (non-inverted) 3-state outputs - reflect latched D-input values when OE is low; high-Z when OE is high. |
| 19 | VCC | Positive supply (4.5–5.5 V) - powers internal logic and output drivers; requires local 0.1 µF bypass capacitor. |
| 20 | CLK | Clock input - positive-edge sensitive; triggers simultaneous update of all eight flip-flop outputs. |
Key Features
| Feature | Design Value |
|---|---|
| 3-State Bus Driving Outputs | Enables direct connection to shared data/address buses without pull-ups or interface logic - reduces component count and layout complexity. |
| Full Parallel Data Access | Eight independent D inputs allow simultaneous loading of an entire byte or word - essential for register file and I/O port implementations. |
| Buffered Control Inputs | OE and CLK inputs include Schmitt-trigger-like hysteresis and drive strength matching - improves noise immunity and fan-out capability. |
| Military Temperature Qualification | Tested and characterized over −55°C to 125°C - meets MIL-PRF-38535 requirements for QML Class V devices. |
| High-Speed Edge-Triggered Operation | 100 MHz maximum clock frequency with sub-9 ns propagation delays - supports real-time control loops and high-throughput data capture. |
Applications
| Aerospace Avionics Data Latching | Defense System I/O Port Buffering |
|---|---|
Use Scenario: Capturing sensor telemetry or command status in flight control computers operating under extreme thermal and radiation conditions. IC Role / Device Role / Timing Role: Synchronous 8-bit data latch holding ADC outputs or discrete switch states until read by microcontroller via shared bus. Use Value: Hermetic CDIP-J package and −55°C to 125°C operation ensure uninterrupted function during stratospheric thermal excursions and EMI exposure. |
Use Scenario: Isolating processor-side peripherals from noisy vehicle power and motor control subsystems in armored vehicle electronics. IC Role / Device Role / Timing Role: Bidirectional bus driver enabling secure, glitch-free handshaking between mission computer and ruggedized I/O modules. Use Value: 3-state outputs prevent bus contention during reset or fault recovery; ±24 mA drive sustains signal integrity across long harness runs. |
| Secure Communication Module Register File | Rad-Hard Test Equipment Signal Conditioning |
Use Scenario: Storing encryption key segments or protocol state variables in tamper-resistant comms hardware deployed in satellite payloads. IC Role / Device Role / Timing Role: Working register providing temporary storage for cryptographic engine operands with deterministic timing alignment. Use Value: Edge-triggered CLK and independent OE allow precise synchronization with cipher clock domains while maintaining data isolation. |
Use Scenario: Digitally conditioning analog test signals in ground-based radar calibration rigs exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Input sampling latch capturing calibrated reference levels before ADC conversion, synchronized to system master clock. Use Value: Guaranteed tSU/th timing (2 ns min) and low jitter propagation support sub-nanosecond sampling accuracy required for RF metrology. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JM38510/34105BRA | Identical electrical specs, same CDIP-J package, identical military qualification - direct second-source part from TI's qualified manufacturer list. | No functional or environmental difference; fully interchangeable in existing designs certified to MIL-PRF-38535. | Select when sourcing flexibility or dual-supplier assurance is required without redesign or requalification. |
| SNJ54F374J | Same die, identical pinout and timing, but marked per TI's legacy military naming convention - functionally identical to 5962-9759001QRA. | Used in legacy programs with established BOMs referencing TI's older part numbering; no change in performance or reliability. | Choose for continuity in sustainment programs where documentation or procurement systems require legacy nomenclature. |
Compared with JM38510/34105BRA and SNJ54F374J, the 5962-9759001QRA offers identical military-grade timing, drive, and temperature performance in the same CDIP-J package - differing only in standardized MIL-STD-975 part numbering for DoD logistics traceability and configuration control.
Availability
5962-9759001QRA is available at Aetrix Electronics and suitable for aerospace avionics, defense I/O subsystems, and secure communications hardware requiring stable component supply, long-term obsolescence management, and full military specification compliance.
Supply support for 5962-9759001QRA 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 industrial, automotive, and defense markets.
The 5962-9759001QRA belongs to TI's military-qualified F-series TTL logic family, designed specifically for high-speed, radiation-tolerant digital control in mission-critical systems where failure is not an option.
FAQ
What is the operating temperature range of the 5962-9759001QRA?
The 5962-9759001QRA is characterized for operation from −55°C to 125°C, meeting MIL-PRF-38535 Class V requirements. This full military temperature range ensures reliable performance in spacecraft thermal vacuum environments, jet engine bays, and desert-deployed electronic warfare systems - verified across all electrical parameters including propagation delay, setup/hold time, and output drive.
Is the 5962-9759001QRA pin-compatible with commercial SN74F374 variants?
No - the 5962-9759001QRA uses a CDIP-J (20-pin ceramic DIP) package, whereas commercial SN74F374 parts use SOIC (DW), SSOP (DB), or PDIP (N) packages. While the pin functions and logic behavior are identical, physical mounting, thermal characteristics, and reliability profiles differ significantly; PCB layout and mechanical integration are not interchangeable.
Does the 5962-9759001QRA support hot-swapping on a live bus?
The 5962-9759001QRA supports controlled bus disconnection via its active-low OE input, allowing outputs to enter high-impedance state while power remains applied. However, it does not implement hot-swap protection circuitry (e.g., slew-rate limiting or undervoltage lockout), so insertion into a powered bus requires external current-limiting or sequencing design to avoid transients.
What is the maximum clock frequency supported by the 5962-9759001QRA?
The 5962-9759001QRA supports a maximum clock frequency of 100 MHz under recommended operating conditions (VCC = 5 V, TA = 25°C). At temperature extremes (−55°C or 125°C), the guaranteed maximum frequency remains 100 MHz per the SN54F374 specification - validated by TI's military characterization testing across process, voltage, and temperature corners.
How does the output enable (OE) function interact with internal flip-flop operation in the 5962-9759001QRA?
In the 5962-9759001QRA, the OE input affects only the output drivers - it has no impact on internal latch state, clock sensitivity, or data retention. While OE is high (disabling outputs), new data can still be loaded on CLK↑ transitions, and previously latched data remains intact, enabling seamless bus arbitration and background register updates without disrupting system timing.
5962-9759001QRA 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:
- -
5962-9759001QRA FAQ
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6.How does Aetrix verify that 5962-9759001QRA is sourced from the original manufacturer or authorized distributors?
All 5962-9759001QRA 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 5962-9759001QRA meets industry standards.
7.What is the process for return or replacement of 5962-9759001QRA?
All 5962-9759001QRA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9759001QRA, 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 5962-9759001QRA part is unused and in its original packaging.
Return procedure for 5962-9759001QRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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