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Texas Instruments JM38510/65308B2A
- Part No.:
- JM38510/65308B2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
JM38510/65308B2A.pdf
- Description:
- HC/UH SERIES, 1 FUNC, POSITIVE E
- Quantity:
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Inventory:115
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Product details
Overview
JM38510/65308B2A from Texas Instruments is a military-grade quad D-type positive-edge-triggered flip-flop with complementary outputs and direct asynchronous clear (CLR). It operates across 2 V to 6 V, delivers ±4-mA output drive at 5 V, exhibits typical propagation delay of 13 ns, and supports up to 10 LSTTL loads - used in radiation-tolerant shift registers and buffer/storage registers for avionics timing control.
For engineers reviewing the JM38510/65308B2A datasheet, JM38510/65308B2A pinout, JM38510/65308B2A application, or JM38510/65308B2A equivalent, this page provides verified functional specifications, JEDEC-standard CDIP-16 pin mapping, military temperature range (−55°C to +125°C), low-input-current operation (≤1 µA), and validated alternatives for high-reliability digital logic design.
Technical Context
This device implements four independent edge-triggered D flip-flops sharing a common clock (CLK) and asynchronous clear (CLR) input. Each stage provides true (Q) and complement (Q̅) outputs, enabling dual-rail storage without external inverters.
It uses silicon-gate CMOS technology compliant with MIL-PRF-38535 Class B requirements, featuring 80-µA maximum ICC at 6 V, input thresholds referenced to VCC (VIH = 70% VCC, VIL = 30% VCC), and guaranteed operation over −55°C to +125°C with no derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports mixed-voltage system interfacing and legacy 5-V TTL compatibility. |
| Propagation Delay (tpd) | 13 ns typical at VCC = 4.5 V - enables reliable operation in synchronous logic chains up to 25 MHz. |
| Output Drive Capability | ±4 mA at VCC = 5 V - directly interfaces with standard LSTTL loads without buffering. |
| Input Leakage Current | ≤1 µA max - minimizes bus loading and preserves signal integrity in high-impedance control paths. |
| Operating Temperature | −55°C to +125°C - qualified per MIL-PRF-38535 for space, missile, and airborne platform deployment. |
| Logic Family | HC-series CMOS - provides high noise immunity (≥45% VCC), low static power, and rail-to-rail output swing. |
| Quiescent Current (ICC) | 80 µA max at VCC = 6 V - ensures minimal standby power in battery-backed or power-constrained subsystems. |
Pinout & Package
Package: Ceramic Dual-In-Line Package (CDIP), 16-pin, hermetically sealed, MIL-STD-883 compliant. Pin pitch: 0.100 inch (2.54 mm); body width: 0.300 inch (7.62 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear input - resets all four flip-flops independently of clock edge. |
| 2 | 1Q | True output of first flip-flop - synchronized to CLK↑, reflects data present at 1D prior to setup time. |
| 3 | 1Q̅ | Inverted output of first flip-flop - eliminates need for external inverters in dual-rail applications. |
| 4 | 1D | Data input for first flip-flop - sampled on rising edge of CLK if setup/hold times met. |
| 5 | 2D | Data input for second flip-flop - electrically isolated but shares same CLK and CLR signals. |
| 6 | 2Q | True output of second flip-flop - identical timing behavior to 1Q with independent data path. |
| 7 | 2Q̅ | Inverted output of second flip-flop - maintains consistent phase relationship across all stages. |
| 8 | GND | Ground reference - must be connected to system common; decoupling capacitor recommended near pin. |
| 9 | VCC | Positive supply - accepts 2–6 V; requires local 0.1-µF ceramic bypass capacitor to GND. |
| 10 | 4Q | True output of fourth flip-flop - completes full quad register set with dedicated Q/Q̅ pairs. |
| 11 | 4Q̅ | Inverted output of fourth flip-flop - enables simultaneous access to both logic states per stage. |
| 12 | 4D | Data input for fourth flip-flop - routed separately to support independent parallel load capability. |
| 13 | 3D | Data input for third flip-flop - allows full 4-bit pattern loading in single clock cycle. |
| 14 | 3Q | True output of third flip-flop - matches timing specs of other outputs (tpd = 13 ns typ). |
| 15 | 3Q̅ | Inverted output of third flip-flop - maintains symmetrical rise/fall characteristics (tr/tf ≤ 16 ns). |
| 16 | CLK | Positive-edge-triggered clock - transitions at ~50% VCC threshold; insensitive to edge rate within spec. |
Key Features
| Feature | Design Value |
|---|---|
| Quad D-type flip-flops with complementary outputs | Eliminates need for external inverters in register files and bidirectional bus drivers. |
| Direct asynchronous clear (CLR) | Resets all four stages simultaneously without waiting for next clock edge - critical for fault recovery. |
| Wide supply range (2 V to 6 V) | Enables interoperability with 3.3-V microcontrollers and legacy 5-V systems without level-shifting. |
| Low input current (≤1 µA) | Reduces loading on upstream drivers and improves fan-out margin in large-scale logic arrays. |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability for defense/aerospace programs requiring QML certification. |
Applications
| Avionics Timing Control | Secure Data Buffering |
|---|---|
|
Use Scenario: Synchronizing sensor sampling clocks across redundant flight control modules in UAVs. IC Role / Device Role / Timing Role: Quad register latching incoming analog-to-digital conversion results with deterministic setup/hold timing. Use Value: Ensures glitch-free state capture under EMI stress via 13-ns tpd and ±4-mA drive into noisy harnesses. |
Use Scenario: Holding encrypted command packets before decryption in secure comms processors. IC Role / Device Role / Timing Role: Temporary storage element preserving data integrity during cryptographic key rotation. Use Value: Leverages dual-rail outputs to detect bit-flip errors and CLR for rapid zeroization on security breach. |
| Radiation-Hardened Shift Registers | Missile Guidance Logic |
|
Use Scenario: Implementing serial-to-parallel conversion in satellite telemetry downlink controllers. IC Role / Device Role / Timing Role: Cascaded stage in multi-bit shift register chain with precise clock-edge alignment. Use Value: Delivers stable 25-MHz operation at −55°C/+125°C with <1 µA leakage preventing data decay during idle cycles. |
Use Scenario: Storing guidance vector updates in inertial navigation units during mid-course correction. IC Role / Device Role / Timing Role: Synchronized latch for real-time attitude adjustment commands from onboard FPGAs. Use Value: MIL-spec CDIP package withstands mechanical shock/vibration while maintaining 80-µA ICC for thermal management. |
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 |
|---|---|---|---|
| SNJ54HC175J | Same die, identical electrical specs, but screened to lower MIL-STD-883 Class S (not Class B); no burn-in or lot acceptance test per QML. | Approved for non-critical military subsystems where full QML-B traceability is not mandated. | Select SNJ54HC175J only when program documentation permits Class S qualification and reduced reliability screening. |
| 8408901EA | TI's official JAN designation for same CDIP-16 package and performance; marking differs but functional and mechanical equivalence confirmed. | Used interchangeably in DoD logistics channels; identical form, fit, and function per TI's packaging addendum. | Prefer 8408901EA when sourcing through federal supply schedules requiring JAN nomenclature compliance. |
Compared with JM38510/65308B2A, SNJ54HC175J offers cost savings at the expense of QML-B traceability and extended life-test coverage, while 8408901EA provides identical functionality under a different JAN part numbering convention required by certain procurement contracts.
Availability
JM38510/65308B2A is available at Aetrix Electronics and suitable for avionics timing control, secure data buffering, and radiation-hardened shift registers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JM38510/65308B2A 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 logic solutions with over 50 years of aerospace and defense component heritage.
JM38510/65308B2A belongs to TI's military HC logic family, engineered specifically for high-reliability digital sequencing in mission-critical platforms where radiation tolerance, thermal stability, and long-term supply assurance are mandatory.
FAQ
What is the absolute maximum supply voltage rating for JM38510/65308B2A?
The absolute maximum supply voltage for JM38510/65308B2A is 7 V, as specified in the Absolute Maximum Ratings table. Operation above 6 V violates recommended conditions and risks permanent damage. The device is designed for reliable 2–6 V operation, with electrical characteristics fully characterized across that range - including VIH/VIL thresholds, tpd, and output drive - ensuring predictable behavior in JM38510/65308B2A-based systems.
Does JM38510/65308B2A support 3.3-V logic interfacing?
Yes, JM38510/65308B2A supports 3.3-V operation within its 2–6 V supply range. At VCC = 3.3 V, VIH is guaranteed ≥2.31 V and VIL ≤0.99 V, compatible with standard 3.3-V CMOS outputs. Its ±4-mA drive at 5 V scales proportionally, and propagation delay remains within specification - making JM38510/65308B2A suitable for mixed-voltage designs where it interfaces with 3.3-V FPGAs or microcontrollers.
Is JM38510/65308B2A pin-compatible with commercial SN74HC175 variants?
Yes, JM38510/65308B2A uses the same CDIP-16 pinout as SN74HC175N and SNJ54HC175J, with identical terminal assignments (CLK, CLR, D/Q/Q̅ pins in matching positions). However, PCB layout must account for differences in thermal pad requirements and hermetic sealing - no changes to netlist or footprint are needed, but conformal coating and mechanical mounting differ per MIL-spec requirements for JM38510/65308B2A.
What is the maximum clock frequency supported by JM38510/65308B2A at 5 V?
At VCC = 5 V, JM38510/65308B2A supports a maximum clock frequency of 25 MHz under recommended operating conditions (−55°C to +125°C), as derived from tpd = 13 ns typical and timing margins in the datasheet. This value is validated across temperature and voltage extremes - confirming stable operation in JM38510/65308B2A-based synchronous counters and state machines deployed in harsh environments.
How does the CLR function behave relative to the clock in JM38510/65308B2A?
In JM38510/65308B2A, CLR is asynchronous and active-low: asserting CLR immediately forces all Q outputs low and all Q̅ outputs high, regardless of CLK state or timing. Release of CLR returns the device to normal clocked operation on the next CLK↑ edge. This behavior is electrically guaranteed across −55°C to +125°C and enables deterministic reset in safety-critical JM38510/65308B2A implementations.
JM38510/65308B2A 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:
- -
JM38510/65308B2A FAQ
1.How can I place an order for JM38510/65308B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/65308B2A 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 JM38510/65308B2A reliable?
The price and inventory of JM38510/65308B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/65308B2A is usually 5 days.
3.What payment methods are accepted for JM38510/65308B2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/65308B2A transactions.
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4.How is shipping managed for JM38510/65308B2A?
JM38510/65308B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/65308B2A 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 JM38510/65308B2A?
For technical support, including JM38510/65308B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/65308B2A requirements.
6.How does Aetrix verify that JM38510/65308B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/65308B2A 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 JM38510/65308B2A meets industry standards.
7.What is the process for return or replacement of JM38510/65308B2A?
All JM38510/65308B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/65308B2A, 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 JM38510/65308B2A part is unused and in its original packaging.
Return procedure for JM38510/65308B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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