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Texas Instruments JM38510/65601B2A
- Part No.:
- JM38510/65601B2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
JM38510/65601B2A.pdf
- Description:
- HC/UH SERIES, 1 FUNC, POSITIVE E
- Quantity:
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Inventory:1,007
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Product details
Overview
JM38510/65601B2A from Texas Instruments is a military-grade octal D-type flip-flop with active-low asynchronous clear, operating across –55°C to +125°C. It features 20-pin CDIP packaging, 2 V–6 V supply voltage range, ±4 mA output drive at 5 V, and typical propagation delay of 12 ns. It serves as a synchronous storage register in radiation-tolerant avionics timing and control subsystems.
For engineers reviewing the JM38510/65601B2A datasheet, JM38510/65601B2A pinout, JM38510/65601B2A application, or JM38510/65601B2A equivalent, key selection criteria include its MIL-PRF-38535 Class B qualification, guaranteed operation under extreme temperature cycling, direct-clear functionality for deterministic reset, and compatibility with legacy HC logic families in safety-critical hold-and-latch circuits.
Technical Context
The JM38510/65601B2A implements eight independent positive-edge-triggered D flip-flops sharing a common clock (CLK) and global active-low clear (CLR). Each flip-flop transfers data from its dedicated D input to its Q output on the rising edge of CLK, provided setup and hold time requirements are met - minimum 125 ns setup at VCC = 4.5 V, zero hold time.
It uses silicon-gate CMOS technology with input clamp diodes, supports up to 10 LSTTL loads per output, and maintains functional integrity under transient supply conditions due to its wide 2 V–6 V operating range and 80 µA maximum ICC at 6 V. All parameters are fully tested per MIL-PRF-38535 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | HC-series CMOS - ensures compatibility with 74HC, 74HCT, and legacy TTL loads without level-shifting. |
| Supply Voltage Range | 2 V to 6 V - enables direct interface with 3.3 V and 5 V systems, including mixed-voltage board designs. |
| Propagation Delay (tpd) | Typical 12 ns at VCC = 4.5 V - supports reliable operation up to 21 MHz clock frequency in high-speed control loops. |
| Output Drive | ±4 mA at 5 V - sufficient to directly drive multiple LSTTL inputs or small capacitive loads (<50 pF) without buffering. |
| Input Leakage Current | ≤1 µA max - minimizes static power draw and prevents unintended logic state drift in low-power standby modes. |
| Operating Temperature | –55°C to +125°C - certified for deployment in aerospace, missile guidance, and downhole industrial environments. |
| Clear Function | Asynchronous, active-low CLR - provides immediate, clock-independent reset of all eight outputs to logic low. |
Pinout & Package
Package: 20-pin Ceramic Dual In-line Package (CDIP), body size 24.20 mm × 6.92 mm, hermetically sealed for high-reliability military applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Active-low asynchronous clear input - forces all Q outputs low regardless of CLK state; requires pull-up for normal operation. |
| 2 | 1Q | Output of first flip-flop - latched value of 1D sampled on prior CLK↑ edge; electrically isolated from other Q pins. |
| 3 | 1D | Data input for first flip-flop - must be stable ≥125 ns before CLK↑ at VCC = 4.5 V to guarantee correct capture. |
| 4 | 2D | Data input for second flip-flop - independent of 1D; allows parallel loading of distinct 8-bit patterns. |
| 5 | 2Q | Output of second flip-flop - synchronized to same CLK edge as 1Q but reflects 2D state; no internal coupling. |
| 10 | GND | Digital ground reference - must be connected to system ground plane with low-inductance path to minimize switching noise. |
| 11 | CLK | Positive-edge clock input - triggers simultaneous sampling of all eight D inputs; edge rate must meet Δt/Δv ≤500 ns/V at 4.5 V. |
| 20 | VCC | Power supply input - requires local 0.1 µF ceramic bypass capacitor placed ≤2 mm from pin to suppress supply transients. |
Key Features
| Feature | Design Value |
|---|---|
| Full MIL-PRF-38535 Class B Qualification | All electrical parameters tested across full temperature range and life-screened per military reliability standards. |
| Single-Rail Outputs | Eight independent Q outputs - eliminates need for external inverters in non-inverting register applications. |
| Low Power Consumption | 80 µA max ICC at 6 V - enables use in thermally constrained avionics bays without forced air cooling. |
| Direct Clear Architecture | Asynchronous CLR overrides clock - critical for fail-safe shutdown sequences in flight control computers. |
| High Noise Immunity | VIH ≥3.15 V and VIL ≤1.35 V at VCC = 4.5 V - rejects >1.5 V of coupled noise on control lines. |
Applications
| Avionics Data Capture | Missile Guidance Latch |
|---|---|
|
Use Scenario: Capturing sensor telemetry (e.g., inertial measurement unit outputs) during rocket motor burn phase where vibration and EMI are extreme. IC Role / Device Role / Timing Role: Synchronous 8-bit latch triggered by precision timing pulse; CLR used for pre-launch initialization and post-burn reset. Use Value: Guaranteed operation at 125°C and immunity to supply droop during pyro-event transients ensure no data corruption in mission-critical frames. |
Use Scenario: Holding target coordinate updates in real-time guidance loop while awaiting next GPS fix or radar update. IC Role / Device Role / Timing Role: Edge-triggered storage element synchronizing asynchronous navigation data into deterministic control pipeline. Use Value: 12 ns tpd enables sub-microsecond latency between data arrival and actuator command generation. |
| Radiation-Hardened Telemetry Buffer | Secure Crypto Key Register |
|
Use Scenario: Isolating and buffering encrypted telemetry streams in satellite command receivers exposed to total ionizing dose (TID). IC Role / Device Role / Timing Role: Radiation-tolerant storage stage between demodulator and decryption engine; CLR used for periodic key refresh. Use Value: Hermetic CDIP package and MIL-qualified process reduce single-event latchup (SEL) risk and maintain parameter stability after 100 krad(Si). |
Use Scenario: Storing intermediate round keys during AES-128 encryption in secure communication modules aboard UAVs. IC Role / Device Role / Timing Role: Tamper-resistant key-holding register with hardware-controlled clear - prevents key leakage during power-down. Use Value: Asynchronous CLR allows immediate zeroization of all eight key bits on security interrupt, meeting NSA Type 1 compliance timing requirements. |
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 |
|---|---|---|---|
| SN54HC273J | MIL-PRF-38535 Class V (not Class B); untested for life screening; wider parametric tolerances. | Suitable for non-safety-critical prototypes or ground-test equipment where full Class B qualification is not mandated. | Select SN54HC273J only when cost and lead time outweigh need for flight-certified reliability data. |
| 5962-8409901VRA | Identical die and CDIP package; differs only in device marking and traceability documentation per JAN specification. | Approved for DoD procurement under Defense Logistics Agency (DLA) standards; identical functional behavior. | Choose 5962-8409901VRA when contractual compliance with DLA Land and Maritime requires JAN-registered part number. |
Compared with SN54HC273J, JM38510/65601B2A delivers verified long-term reliability and tighter parametric limits essential for flight hardware; versus 5962-8409901VRA, it offers identical performance but with different DLA-assigned nomenclature and test reporting structure.
Availability
JM38510/65601B2A is available at Aetrix Electronics and suitable for avionics data capture, missile guidance latch, radiation-hardened telemetry buffer, and secure crypto key register applications requiring stable component supply across extended product lifecycles.
Supply support for JM38510/65601B2A 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.
JM38510/65601B2A belongs to TI's military logic portfolio designed specifically for systems demanding guaranteed operation under extreme environmental stress, radiation exposure, and long-term obsolescence mitigation.
FAQ
What is the qualified temperature range for JM38510/65601B2A?
JM38510/65601B2A is fully specified and tested over –55°C to +125°C per MIL-PRF-38535 Class B requirements. This range is validated through temperature cycling, steady-state bias life testing, and parametric verification at both extremes - ensuring reliable operation in jet engine bays, space payload enclosures, and desert-deployed ground stations.
Does JM38510/65601B2A support 3.3 V operation?
Yes, JM38510/65601B2A operates reliably at 3.3 V supply. Its recommended operating range is 2 V to 6 V, and all parameters - including VIH (≥2.31 V), VOL (≤0.4 V), and tpd (≤40 ns) - are guaranteed at 3.3 V per the SN54HC273 electrical characteristics table. It interfaces directly with 3.3 V microcontrollers without level translation.
How is the clear function implemented in JM38510/65601B2A?
JM38510/65601B2A features an asynchronous active-low clear (CLR) input that forces all eight Q outputs to logic low immediately upon assertion - independent of the clock signal. The CLR pin has no internal pull-up; external 10 kΩ pull-up to VCC is required for normal operation. Minimum pulse width is 17 ns at VCC = 6 V.
What packaging and sealing method does JM38510/65601B2A use?
JM38510/65601B2A is supplied in a 20-pin Ceramic Dual In-line Package (CDIP) with glass-sealed leads and a ceramic body. This hermetic construction meets MIL-STD-883 Method 1014 for leak integrity and provides immunity to moisture ingress, making it suitable for high-humidity and vacuum environments encountered in spacecraft and high-altitude platforms.
Is JM38510/65601B2A pin-compatible with commercial SN74HC273 variants?
JM38510/65601B2A shares identical pinout and logic function with SN74HC273 and SN54HC273 devices in CDIP (J) package. However, it is not a drop-in replacement due to differences in screening, test coverage, and thermal derating - especially regarding junction-to-ambient resistance (RθJA = 45.1°C/W for SN74HC273N vs. higher for CDIP). Board layout may be reused, but qualification must be repeated.
JM38510/65601B2A 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:
- -
JM38510/65601B2A FAQ
1.How can I place an order for JM38510/65601B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/65601B2A 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 JM38510/65601B2A reliable?
The price and inventory of JM38510/65601B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/65601B2A is usually 5 days.
3.What payment methods are accepted for JM38510/65601B2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/65601B2A transactions.
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4.How is shipping managed for JM38510/65601B2A?
JM38510/65601B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/65601B2A 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 JM38510/65601B2A?
For technical support, including JM38510/65601B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/65601B2A requirements.
6.How does Aetrix verify that JM38510/65601B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/65601B2A 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 JM38510/65601B2A meets industry standards.
7.What is the process for return or replacement of JM38510/65601B2A?
All JM38510/65601B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/65601B2A, 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 JM38510/65601B2A part is unused and in its original packaging.
Return procedure for JM38510/65601B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JM38510/65601B2A Tags
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SN74HC574DWR
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74LVC1G74DC,125
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SN74HC273DWR
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SN74HCT574DWR
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SN74LVC1G74DCTR
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