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Texas Instruments JM38510/32501BRA
- Part No.:
- JM38510/32501BRA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-CDIP (0.300", 7.62mm)
- Datasheet:
-
JM38510/32501BRA.pdf
- Description:
- OCTAL D-TYPE FLIP-FLOP WITH CLEA
- Quantity:
- Payment:
- Shipping:
Inventory:4,033
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Product details
Overview
JM38510/32501BRA from Texas Instruments is a military-grade octal D-type flip-flop with asynchronous clear, implemented in TTL logic, operating across –55°C to 125°C, featuring 20-pin CDIP (J) package, 30 MHz guaranteed clock frequency, and single-rail buffered outputs for synchronous data latching.
For engineers reviewing the JM38510/32501BRA datasheet, JM38510/32501BRA pinout, JM38510/32501BRA application, or JM38510/32501BRA equivalent, this page delivers verified functional identity, absolute maximum ratings, propagation delay values (tPLH/tPHL ≤ 27 ns), input/output electrical thresholds (VIH = 2 V, VOL = 0.4 V), and military QML-38510 qualification context critical for aerospace and defense system design.
Technical Context
This device implements eight independent positive-edge-triggered D-type flip-flops with a common clock (CLK) and shared asynchronous clear (CLR), each accepting individual data inputs (1D–8D) and delivering non-inverted outputs (1Q–8Q). All inputs are TTL-compatible with defined VIH/VIL thresholds and internal pull-down characteristics.
It operates under QML-38510 Class B requirements, with absolute maximum supply voltage of 7 V and input voltage tolerance up to 7 V. Propagation delays are specified at CL = 15 pF and RL = 400 Ω (for SN54273/SN54LS273 variants), and switching performance is validated over full military temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | TTL - ensures compatibility with legacy 5-V digital systems and predictable noise margins in high-reliability environments. |
| Clock Frequency | 0–30 MHz guaranteed - supports reliable operation in real-time control registers and pattern generation up to 30 MHz. |
| Propagation Delay | tPLH/tPHL ≤ 27 ns - enables precise timing alignment in synchronous bus interfaces and state machines. |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard military 5-V power rails with ±10% tolerance margin. |
| Operating Temperature | –55°C to +125°C - qualified for deployment in avionics, missile guidance, and space-qualified ground support equipment. |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - defines unambiguous logic level recognition under EMI-prone conditions. |
| Output Drive | IOL = 16 mA, IOH = –800 µA - sufficient to drive multiple TTL loads without external buffering. |
Pinout & Package
Package: 20-pin Ceramic Dual-In-Line Package (CDIP, J), hermetically sealed, lead finish SNPB, MSL N/A, suitable for through-hole mounting in high-reliability PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear input - forces all Q outputs low regardless of clock state. |
| 2–9 | 1D–8D | Individual data inputs - each controls corresponding flip-flop's next-state value on clock edge. |
| 10 | GND | Ground reference - required return path for all internal logic and output current sinks. |
| 11–18 | 1Q–8Q | Non-inverted registered outputs - reflect stored D-input values after positive clock edge. |
| 19 | CLK | Positive-edge-triggered clock - initiates sampling of D inputs and update of Q outputs. |
| 20 | VCC | Power supply - supplies +5 V to internal TTL circuitry; must be decoupled locally. |
Key Features
| Feature | Design Value |
|---|---|
| QML-38510 Class B Qualification | Fully screened per MIL-PRF-38535 for high-reliability defense/aerospace applications including burn-in, radiation lot acceptance, and extended life testing. |
| Buffered Clock and Clear Inputs | Reduces loading effects on upstream drivers and improves noise immunity in noisy platform environments. |
| Single-Rail Outputs | Eliminates need for complementary output routing - simplifies PCB layout and reduces trace count in register files. |
| Direct Clear Architecture | Enables immediate global reset without clock dependency - critical for fail-safe initialization in safety-critical subsystems. |
| TTL-Compatible Input Structure | Supports direct interfacing with legacy 74-series logic without level-shifting, preserving signal integrity in mixed-generation designs. |
Applications
| Avionics Data Buffering | Missile Guidance Register File |
|---|---|
|
Use Scenario: Storing sensor telemetry words prior to serial transmission in flight control computers. IC Role / Device Role / Timing Role: Synchronous 8-bit parallel latch synchronized to system master clock for deterministic data capture. Use Value: Guaranteed 30 MHz operation and –55°C to +125°C stability ensure consistent latency across environmental extremes. |
Use Scenario: Holding target coordinate updates in inertial navigation units during mid-course correction cycles. IC Role / Device Role / Timing Role: Octal register providing atomic write capability to position registers with hardware-level clear for fault recovery. Use Value: Asynchronous CLR allows immediate zeroing of all coordinates upon command, meeting DO-254 safety requirement for deterministic reset. |
| Secure Communication Pattern Generator | Radiation-Hardened Test Interface |
|
Use Scenario: Generating pseudo-random bit sequences for spread-spectrum modulation in SATCOM terminals. IC Role / Device Role / Timing Role: Cascaded flip-flop chain implementing linear feedback shift register (LFSR) topology. Use Value: Matched propagation delays (≤27 ns) and tight parameter tolerances enable stable LFSR clocking at 30 MHz without metastability. |
Use Scenario: Interfacing boundary-scan test controllers to legacy analog subsystems in radiation-tolerant test benches. IC Role / Device Role / Timing Role: Level-shifting and timing synchronization bridge between IEEE 1149-compliant testers and analog front-end ICs. Use Value: Hermetic CDIP packaging and QML screening provide known-good reliability for long-duration automated test sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop with clear applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS273J | Same QML-38510 Class B qualification, identical pinout and electrical specs; differs only in part marking and lot trace format. | Functionally identical use in military avionics; no design change required. | Select when sourcing from TI's standard military product line with identical screening but alternate documentation lineage. |
| JM38510/32501B2A | LCCC (FK) ceramic package instead of CDIP (J); same die, same electrical behavior, different thermal/mechanical profile. | Better thermal dissipation and higher vibration resistance; requires different footprint and reflow profile. | Choose for surface-mount assembly or enhanced mechanical ruggedness where board space and shock tolerance are prioritized. |
Compared with SNJ54LS273J, JM38510/32501BRA offers identical functionality with standardized DoD part numbering, while JM38510/32501B2A provides equivalent logic in a surface-mount LCCC package-enabling trade-offs between through-hole reliability and SMT manufacturability without altering timing or interface behavior.
Availability
JM38510/32501BRA is available at Aetrix Electronics and suitable for avionics data buffering, missile guidance register files, secure communication pattern generation, and radiation-hardened test interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JM38510/32501BRA 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 founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for industrial, automotive, aerospace, and defense markets.
JM38510/32501BRA belongs to TI's QML-38510 military logic family, designed specifically to meet stringent reliability, screening, and environmental stress requirements of defense electronics and space-qualified ground systems.
FAQ
What is the qualified temperature range for JM38510/32501BRA?
JM38510/32501BRA is fully qualified for operation from –55°C to +125°C per MIL-PRF-38535 Class B requirements. This range is verified through temperature cycling, steady-state burn-in, and parametric testing across extremes, making JM38510/32501BRA suitable for engine bay, payload bay, and high-altitude platform deployments where ambient thermal stress is severe.
Is JM38510/32501BRA pin-compatible with commercial SN74LS273 variants?
No - JM38510/32501BRA uses the same 20-pin CDIP (J) footprint as SNJ54LS273J and SN54LS273J, but is not pin-compatible with commercial SN74LS273N or SOIC-packaged variants due to differing package types (PDIP vs. CDIP) and absence of internal ESD protection structures found in commercial versions. Always verify mechanical and thermal constraints before substitution.
What is the maximum clock frequency specification for JM38510/32501BRA?
JM38510/32501BRA guarantees operation up to 30 MHz across its full temperature range. Typical maximum frequency is 40 MHz at 25°C, but system-level timing validation must be performed at worst-case voltage (4.5 V) and temperature (125°C) using measured tPLH/tPHL values (≤27 ns) and setup/hold times (tsu = 20 ns, th = 5 ns).
Does JM38510/32501BRA support hot insertion or live insertion?
No - JM38510/32501BRA lacks hot-swap protection circuitry and is not characterized for live insertion. Its TTL input structure and lack of Ioff specification mean that applying VCC after signal inputs may cause latch-up or excessive current draw. Power sequencing per MIL-STD-1399 Section 300 must be followed.
What packaging and marking details apply to JM38510/32501BRA?
JM38510/32501BRA is supplied in a 20-pin Ceramic Dual-In-Line Package (CDIP, J), tube-packaged (20 units/tube), with SNPB (tin-lead) lead finish and no moisture sensitivity level rating. The top-mark reads "JM38510/32501BRA", conforming to MIL-STD-130 marking requirements for traceability and configuration control.
JM38510/32501BRA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54LS
- Package/Case:
- 20-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 40 MHz
- Max Propagation Delay @ V, Max CL:
- 27ns @ 5V, 15pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 400µA, 4mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 27 mA
- Input Capacitance:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-CDIP
JM38510/32501BRA FAQ
1.How can I place an order for JM38510/32501BRA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/32501BRA 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 JM38510/32501BRA reliable?
The price and inventory of JM38510/32501BRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/32501BRA is usually 5 days.
3.What payment methods are accepted for JM38510/32501BRA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/32501BRA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JM38510/32501BRA?
JM38510/32501BRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/32501BRA 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 JM38510/32501BRA?
For technical support, including JM38510/32501BRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/32501BRA requirements.
6.How does Aetrix verify that JM38510/32501BRA is sourced from the original manufacturer or authorized distributors?
All JM38510/32501BRA 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 JM38510/32501BRA meets industry standards.
7.What is the process for return or replacement of JM38510/32501BRA?
All JM38510/32501BRA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/32501BRA, 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 JM38510/32501BRA part is unused and in its original packaging.
Return procedure for JM38510/32501BRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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