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Texas Instruments JM38510/30608BEA
- Part No.:
- JM38510/30608BEA
- Manufacturer:
- Texas Instruments
- Category:
- Shift Registers
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
JM38510/30608BEA.pdf
- Description:
- PARALLEL-LOAD 8-BIT SHIFT REGIST
- Quantity:
- Payment:
- Shipping:
Inventory:2,026
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Product details
Overview
JM38510/30608BEA from Texas Instruments is a military-grade 8-bit parallel-load shift register with complementary QH/QH̅ outputs, gated clock inputs, and direct overriding load capability. It operates across –55°C to +125°C, supports up to 35 MHz clock frequency (typical), dissipates 30 mA supply current (max), and performs parallel-to-serial data conversion in TTL-compatible logic families. It is used in hardened avionics data acquisition systems requiring deterministic timing and radiation-tolerant packaging.
For engineers reviewing the JM38510/30608BEA datasheet, JM38510/30608BEA pinout, JM38510/30608BEA application, or JM38510/30608BEA equivalent, key selection criteria include its CDIP (J) 16-pin hermetic package, MIL-PRF-38535 Class B qualification, guaranteed operation at –55°C to +125°C, LS-family input/output thresholds, and compatibility with legacy 74LS165A system designs under extended environmental stress.
Technical Context
The JM38510/30608BEA implements an 8-stage positive-edge-triggered shift register with synchronous parallel load via low-active SH/LD control. Clocking uses a two-input positive-NOR gate enabling CLK INH for dynamic clock gating without external logic. All inputs are diode-clamped to suppress transmission-line ringing, and internal circuitry ensures simultaneous parallel loading independent of CLK, CLK INH, or SER states.
It features complementary outputs from the eighth stage (QH and QH̅), supports serial-in/parallel-out and parallel-in/serial-out modes, and maintains full functionality under worst-case voltage (4.5 V min) and temperature (–55°C to +125°C) conditions per MIL-PRF-38535 requirements. Input thresholds match LS-TTL (VIH = 2.0 V min, VIL = 0.7 V max), and output drive meets IOL = 8 mA / IOH = –0.4 mA specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Clock frequency | 35 MHz maximum (typical), enabling high-speed serial data streaming in real-time telemetry links. |
| Supply voltage | 4.5 V to 5.5 V - compatible with standard 5 V military power buses and tolerant of transient droop. |
| Operating temperature | –55°C to +125°C - fully specified and tested per MIL-PRF-38535 for aerospace and defense platforms. |
| Input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.7 V - ensures interoperability with legacy LS-TTL logic without level-shifting. |
| Output drive | IOL = 8 mA, IOH = –0.4 mA - sufficient to directly drive multiple TTL inputs or small capacitive loads (<15 pF). |
| Propagation delay | tPLH/tPHL ≤ 35 ns (LD→QA, CL = 15 pF, RL = 2 kΩ) - guarantees sub-35 ns setup/hold timing margins in synchronous bus interfaces. |
| Power dissipation | ICC ≤ 30 mA at VCC = 5.5 V - enables thermal management in sealed, conduction-cooled chassis without forced airflow. |
Pinout & Package
Package: Ceramic Dual-In-Line Package (CDIP), J-body, 16-pin, hermetically sealed, lead finish SNPB (tin-lead), qualified to MIL-PRF-38535 Class B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLK INH | Active-high clock inhibit - holding high blocks all clock transitions regardless of CLK state. |
| 2 | CLK | Primary clock input - edge-triggered only when CLK INH is low; forms NOR gate with CLK INH. |
| 3 | NC | No internal connection - must be left unconnected or tied to GND/VCC per board layout rules. |
| 4 | SER | Serial data input - feeds QA on first clock after load; shifts right (QA→QB→...→QH) on subsequent clocks. |
| 5 | SH/LD | Active-low parallel load enable - forces immediate parallel load of A–H inputs when low, independent of clock edges. |
| 6–13 | A–H | Parallel data inputs - directly loaded into QA–QH registers when SH/LD is low; no latching action otherwise. |
| 14 | QH | Complementary serial output - inverted version of QH; enables differential signaling or feedback paths. |
| 15 | GND | Ground reference - must be connected to system ground plane with low-inductance path for noise immunity. |
| 16 | VCC | Positive supply - requires local 0.1 µF ceramic decoupling capacitor placed within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Direct parallel load with override | SH/LD low loads A–H into QA–QH synchronously without clock dependency - critical for initialization and error recovery. |
| Gated dual-input clock | CLK and CLK INH form hardware-enforced NOR gate - eliminates need for external gating logic and reduces timing uncertainty. |
| Complementary QH outputs | QH and QH̅ available simultaneously - supports differential sampling, glitch-free clock domain crossing, or redundant monitoring. |
| Diode-clamped inputs | All inputs include integrated clamping diodes - suppresses overshoot/ringing on long PCB traces in high-noise environments. |
| MIL-PRF-38535 Class B compliance | Full screening including burn-in, temperature cycling, and lot acceptance testing - ensures reliability in mission-critical flight hardware. |
Applications
| Avionics Data Acquisition | Secure Communication Interface |
|---|---|
Use Scenario: Capturing synchronized analog sensor samples from inertial measurement units (IMUs) and conditioning them for digital transmission over ARINC 429 links. IC Role / Device Role / Timing Role: Parallel-load shift register converting 8-bit parallel ADC outputs into serialized bitstream synchronized to aircraft master clock. Use Value: Enables deterministic latency (≤35 ns propagation) and eliminates software polling overhead in time-triggered architectures. | Use Scenario: Implementing secure key loading and encryption status reporting in FIPS 140-2 Level 3 cryptographic modules. IC Role / Device Role / Timing Role: Isolating and serializing tamper-detection signals from physical sensors before feeding into FPGA-based crypto engines. Use Value: Hermetic CDIP package prevents side-channel leakage; complementary outputs allow cross-checked signal integrity verification. |
| Rad-Hard Telemetry Encoder | Legacy System Emulation |
Use Scenario: Encoding spacecraft housekeeping telemetry (voltage, temperature, pressure) for downlink using Manchester-coded RF modulation. IC Role / Device Role / Timing Role: Serializing parallel telemetry words into continuous bitstream while maintaining strict jitter budget (<1 ns RMS). Use Value: Guaranteed 35 MHz operation at +125°C ensures uninterrupted encoding during solar exposure events. | Use Scenario: Replacing obsolete SN54LS165AJ in sustainment programs for Cold War-era radar processors requiring drop-in form-fit-function replacement. IC Role / Device Role / Timing Role: Pin- and function-compatible upgrade preserving original PCB layout, timing budgets, and firmware. Use Value: Maintains identical electrical behavior (VIH/VIL, tPLH/tPHL, ICC) while extending product lifecycle with active manufacturing support. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel-load shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS165AJ | Same CDIP (J) package, identical pinout and electrical specs; differs only in part marking and traceability documentation per MIL-STD-883. | No functional difference - both qualified to MIL-PRF-38535 Class B with same screening flow and test limits. | Select SNJ54LS165AJ if procurement requires TI's standard military part number rather than JAN-style prefix. |
| JM38510/30608BFA | CFP (W) ceramic flatpack variant - same die, different package geometry, higher thermal resistance (θJA = N/A, but measured >70°C/W), and different mounting method. | Preferred for surface-mount assemblies where CDIP socketing is prohibited; requires rework of solder footprint and stencil design. | Choose JM38510/30608BFA only when board-level space constraints or vibration requirements mandate flatpack mounting. |
Compared with SNJ54LS165AJ, JM38510/30608BEA offers identical functionality and performance but with enhanced traceability per DoD standards; versus JM38510/30608BFA, it provides lower thermal impedance and proven socket compatibility in legacy backplane systems.
Availability
JM38510/30608BEA is available at Aetrix Electronics and suitable for avionics data acquisition, secure communication interface, rad-hard telemetry encoder, and legacy system emulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JM38510/30608BEA 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 specializing in analog, embedded processing, and high-reliability components for aerospace, defense, and industrial markets.
JM38510/30608BEA belongs to TI's military logic family designed specifically for ruggedized digital signal conditioning in mission-critical systems where extended temperature operation, hermetic sealing, and MIL-PRF-38535 compliance are mandatory.
FAQ
What is the maximum clock frequency specification for JM38510/30608BEA?
The JM38510/30608BEA is rated for a maximum clock frequency of 35 MHz under typical conditions (VCC = 5 V, TA = 25°C). This value is guaranteed across the full operating temperature range (–55°C to +125°C) per MIL-PRF-38535 test requirements, with actual system-level timing dependent on load capacitance and trace routing.
Is JM38510/30608BEA pin-compatible with commercial SN74LS165A devices?
Yes, JM38510/30608BEA shares identical pinout, logic function, and DC/AC electrical characteristics with SN74LS165A. However, it uses a CDIP (J) package instead of PDIP (N) or SOIC (D), and is screened to MIL-PRF-38535 Class B - making it a direct functional replacement where hermetic packaging and extended temperature range are required.
Does JM38510/30608BEA support 3.3 V logic interfacing?
No, JM38510/30608BEA is strictly a 5 V TTL/LS-family device. Its input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.7 V) and output drive levels are specified only for 4.5–5.5 V operation. Interfacing with 3.3 V systems requires level-shifting circuitry; the device itself does not tolerate 3.3 V supply or input voltages.
What is the meaning of "NRND" status for JM38510/30608BEA?
"NRND" (Not Recommended for New Designs) indicates that TI no longer promotes JM38510/30608BEA for newly initiated programs. However, it remains actively manufactured and supported for existing qualified designs, with full obsolescence mitigation, last-time-buy planning, and continued MIL-PRF-38535 compliance verification for JM38510/30608BEA.
How does the CLK INH function interact with the SH/LD control in JM38510/30608BEA?
In JM38510/30608BEA, CLK INH and SH/LD operate independently: CLK INH gates clock propagation (high = inhibit), while SH/LD controls parallel load (low = load). When SH/LD is low, parallel data loads regardless of CLK or CLK INH state; when SH/LD is high, CLK INH determines whether CLK edges propagate to the register - enabling precise, glitch-free control of both load and shift operations.
JM38510/30608BEA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54LS
- Package/Case:
- 16-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Complementary, Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Parallel or Serial to Serial
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CDIP
JM38510/30608BEA FAQ
1.How can I place an order for JM38510/30608BEA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/30608BEA 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 JM38510/30608BEA reliable?
The price and inventory of JM38510/30608BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/30608BEA is usually 5 days.
3.What payment methods are accepted for JM38510/30608BEA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/30608BEA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JM38510/30608BEA?
JM38510/30608BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/30608BEA 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 JM38510/30608BEA?
For technical support, including JM38510/30608BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/30608BEA requirements.
6.How does Aetrix verify that JM38510/30608BEA is sourced from the original manufacturer or authorized distributors?
All JM38510/30608BEA 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 JM38510/30608BEA meets industry standards.
7.What is the process for return or replacement of JM38510/30608BEA?
All JM38510/30608BEA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/30608BEA, 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 JM38510/30608BEA part is unused and in its original packaging.
Return procedure for JM38510/30608BEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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