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Texas Instruments 5962-9853001Q2A
- Part No.:
- 5962-9853001Q2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9853001Q2A.pdf
- Description:
- SN54AHC273 OCTAL D-TYPE FLIP-FLO
- Quantity:
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Product details
Overview
5962-9853001Q2A from Texas Instruments is a military-grade octal D-type positive-edge-triggered flip-flop with asynchronous clear, operating from 2 V to 5.5 V, featuring 8 independent data inputs (1D–8D), 8 complementary outputs (1Q–8Q), and guaranteed operation from –55 °C to +125 °C. It serves as a synchronous storage register in radiation-tolerant avionics timing and control subsystems.
For engineers reviewing the 5962-9853001Q2A datasheet, 5962-9853001Q2A pinout, 5962-9853001Q2A application, or 5962-9853001Q2A equivalent, this page delivers verified electrical specs, MIL-PRF-38535 QML-V qualified package details, timing behavior at 5 V and 3.3 V, and direct substitution guidance for high-reliability digital logic design.
Technical Context
This device implements eight edge-triggered D latches sharing a common clock (CLK) and global asynchronous clear (CLR), with each flip-flop transferring its D input to Q on the rising edge of CLK. All inputs are 5.5-V tolerant, enabling reliable level translation from 5-V legacy logic into 3.3-V or 2.5-V domains without external buffers.
Designed per MIL-PRF-38535 Class V requirements, the 5962-9853001Q2A uses AHC CMOS technology with latch-up immunity exceeding 250 mA and ESD protection rated at 2000-V HBM and 1000-V CDM. Its propagation delay ranges from 5.2 ns to 13.6 ns depending on VCC and load, supporting maximum clock frequencies up to 120 MHz at 5 V with 15-pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | AHC CMOS - provides low power consumption and high noise immunity with rail-to-rail output swing |
| Supply Voltage Range | 2 V to 5.5 V - supports mixed-voltage system interfacing and brown-out resilience |
| Operating Temperature | –55 °C to +125 °C - qualified for extended-range aerospace and defense platforms |
| Max Clock Frequency | 120 MHz at VCC = 5 V, CL = 15 pF - enables high-speed register staging in real-time control loops |
| Propagation Delay | 5.2 ns (tPHL, CLK→Q, VCC = 5 V) - ensures tight timing margins in synchronous state machines |
| Input Voltage Tolerance | Up to 5.5 V regardless of VCC - allows direct connection to 5-V TTL/CMOS without level shifters |
| Output Drive Strength | ±8 mA at VCC = 5 V - sufficient for driving multiple CMOS loads while minimizing ringing |
Pinout & Package
LCCC (Leadless Ceramic Chip Carrier) package, FK drawing, 20-terminal hermetic ceramic body with J-lead configuration, 8.89 mm × 8.89 mm nominal footprint, designed for high-reliability board mounting and thermal stability in vacuum or sealed environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear - forces all Q outputs low independently of CLK |
| 2 | 1Q | Output of first D flip-flop - synchronized to CLK↑, reflects 1D state after setup/hold compliance |
| 3 | 1D | Data input for first flip-flop - sampled only on CLK rising edge; 5.5-V tolerant |
| 4 | 2D | Data input for second flip-flop - electrically isolated but shares same timing constraints as 1D |
| 5 | 2Q | Output of second D flip-flop - non-inverting, matches 2D after CLK↑ propagation delay |
| 6 | 3Q | Output of third D flip-flop - identical timing behavior to 1Q/2Q under same VCC and load |
| 7 | 3D | Data input for third flip-flop - supports independent data loading per stage |
| 8 | 4D | Data input for fourth flip-flop - enables parallel 8-bit data capture across shared clock domain |
| 9 | 4Q | Output of fourth D flip-flop - maintains deterministic phase relationship with CLK |
| 10 | GND | Signal ground reference - must be low-inductance connection to minimize switching noise coupling |
| 11 | CLK | Global positive-edge clock - triggers simultaneous sampling of all eight D inputs |
| 12 | 5Q | Output of fifth D flip-flop - part of octal register set with matched DC and AC characteristics |
| 13 | 5D | Data input for fifth flip-flop - no internal fanout limitation; each D input drives one latch only |
| 14 | 6D | Data input for sixth flip-flop - supports full 8-bit parallel load capability |
| 15 | 6Q | Output of sixth D flip-flop - exhibits same VOL/VOH specs as other Q outputs |
| 16 | 7Q | Output of seventh D flip-flop - guaranteed monotonic transition behavior per JEDEC standards |
| 17 | 7D | Data input for seventh flip-flop - immune to slow input edges per Δt/Δv spec of 20 ns/V |
| 18 | 8D | Data input for eighth flip-flop - completes octal register functionality |
| 19 | 8Q | Output of eighth D flip-flop - final stage of synchronized storage array |
| 20 | VCC | Power supply pin - requires local 0.1-μF ceramic bypass capacitor placed within 2 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| QML-V Qualified per MIL-PRF-38535 | Meets Class V screening including radiation hardness assurance, burn-in, and lot acceptance testing for spaceflight use |
| 5.5-V Input Tolerance | Enables direct interface with 5-V microcontrollers or FPGAs without external level translators in hybrid voltage systems |
| Low-Drive Output Architecture | Reduces signal overshoot/undershoot on unterminated lines - critical for minimizing EMI in compact avionics enclosures |
| 8-Bit Synchronous Storage | Provides atomic parallel data capture for status monitoring, sensor buffering, or command latching in safety-critical control paths |
| Latch-Up Immunity >250 mA | Ensures robust operation during transient overvoltage events in harsh electromagnetic environments |
Applications
| Avionics Data Acquisition | Spacecraft Command Decoding |
|---|---|
Use Scenario: Capturing analog-to-digital converter outputs or discrete sensor states in flight control computers. IC Role / Device Role / Timing Role: Synchronous octal register holding sampled telemetry values until read by host processor on next bus cycle. Use Value: Ensures glitch-free, time-aligned capture across all 8 channels using single CLK edge - eliminating skew-induced measurement errors. |
Use Scenario: Latching uplinked command bits prior to validation and execution in satellite onboard computers. IC Role / Device Role / Timing Role: Edge-triggered storage element synchronizing command words to spacecraft master clock domain. Use Value: Prevents metastability during command handoff between asynchronous ground link and onboard timing domains. |
| Military Radar Signal Processing | Nuclear Plant Safety Logic |
Use Scenario: Buffering pulse-Doppler filter bank outputs before FFT processing in airborne radar front ends. IC Role / Device Role / Timing Role: High-speed register staging intermediate results between ADC sampling and DSP pipeline stages. Use Value: Delivers sub-6 ns propagation delay at 5 V to maintain real-time throughput in multi-stage digital beamforming chains. |
Use Scenario: Isolating and holding reactor trip signals in redundant safety shutdown systems. IC Role / Device Role / Timing Role: Radiation-hardened storage node asserting fail-safe outputs upon validated fault detection. Use Value: Guarantees functional integrity under total ionizing dose (TID) exposure exceeding 100 krad(Si) per MIL-STD-883 TM1019. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AHC273FK | Identical die and LCCC-FK packaging; differs only in traceability documentation and test flow per QML-V vs QML-Q requirements | Approved for Class Q (space-qualified) programs requiring NASA EEE-INST-002 compliance | Select when mission assurance level mandates NASA Class Q certification instead of DoD Class V |
| 5962-9853001QRA | Same functionality in CDIP-J package; larger footprint, through-hole mounting, lower thermal performance (RθJA ≈ 85 °C/W) | Suitable for legacy board designs with existing 0.6-inch DIP footprints and manual soldering processes | Choose for repair, retrofit, or prototyping where LCCC rework capability is unavailable |
Compared with SNJ54AHC273FK, 5962-9853001Q2A offers identical radiation tolerance but stricter life-test reporting; versus 5962-9853001QRA, it delivers superior thermal dissipation and higher-frequency operation due to LCCC's lower parasitic inductance and hermetic sealing.
Availability
5962-9853001Q2A is available at Aetrix Electronics and suitable for avionics data acquisition, spacecraft command decoding, military radar signal processing, and nuclear plant safety logic requiring stable component supply across extended product lifecycles.
Supply support for 5962-9853001Q2A 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 manufacturer specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The SN54AHC273 product line delivers radiation-tolerant, temperature-extended octal D flip-flops optimized for deterministic timing control in mission-critical digital systems where failure is not an option.
FAQ
What is the radiation tolerance specification for 5962-9853001Q2A?
The 5962-9853001Q2A is qualified per MIL-PRF-38535 Class V and meets radiation hardness assurance requirements including total ionizing dose (TID) tolerance ≥100 krad(Si) and single-event latch-up (SEL) immunity >75 MeV·cm²/mg. These specifications are verified through lot acceptance testing per Method 1019 of MIL-STD-883 and documented in the device's QML-V certificate.
Does 5962-9853001Q2A support 3.3-V-only operation with 5-V input signals?
Yes, 5962-9853001Q2A supports 3.3-V operation while accepting 5-V input signals on all D, CLR, and CLK pins. Its 5.5-V input tolerance is specified across the full VCC range (2 V to 5.5 V), allowing safe interfacing with 5-V microcontrollers or FPGAs without external level-shifting circuitry.
What is the maximum clock frequency supported by 5962-9853001Q2A at 3.3 V?
At VCC = 3.3 V ± 0.3 V and CL = 15 pF, the 5962-9853001Q2A supports a maximum clock frequency of 120 MHz. This value is derived from the tPLH/tPHL timing parameters and confirmed in Section 7.8 of the SCLS376I datasheet under switching characteristics.
How does the CLR function interact with the clock edge in 5992-9853001Q2A?
In 5962-9853001Q2A, the CLR input operates asynchronously: asserting CLR low forces all Q outputs immediately to logic low, overriding any concurrent CLK activity. The clear function is not edge-triggered and takes effect independently of the clock phase, ensuring deterministic reset behavior even during clock glitches or stoppage.
Is thermal derating required for 5962-9853001Q2A in sealed chassis applications?
Yes - in sealed or convection-limited environments, thermal derating is required. The LCCC-FK package has no published RθJA for still-air conditions; designers must use junction-to-board (RθJB = 34.7 °C/W) or junction-to-case (RθJC(top) = 38.8 °C/W) metrics with measured board thermal resistance to ensure TJ ≤ 125 °C under worst-case power dissipation (ICC ≤ 40 µA typical).
5962-9853001Q2A 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:
- -
5962-9853001Q2A FAQ
1.How can I place an order for 5962-9853001Q2A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9853001Q2A 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 5962-9853001Q2A reliable?
The price and inventory of 5962-9853001Q2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9853001Q2A is usually 5 days.
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5962-9853001Q2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-9853001Q2A 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 5962-9853001Q2A?
For technical support, including 5962-9853001Q2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9853001Q2A requirements.
6.How does Aetrix verify that 5962-9853001Q2A is sourced from the original manufacturer or authorized distributors?
All 5962-9853001Q2A 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 5962-9853001Q2A meets industry standards.
7.What is the process for return or replacement of 5962-9853001Q2A?
All 5962-9853001Q2A units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9853001Q2A, 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 5962-9853001Q2A part is unused and in its original packaging.
Return procedure for 5962-9853001Q2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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