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Texas Instruments SNJ95160BJ
- Part No.:
- SNJ95160BJ
- Manufacturer:
- Texas Instruments
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SNJ95160BJ.pdf
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Product details
Overview
SNJ95160BJ from Rochester Electronics is a military-grade, Class V Space Level qualified 16-bit parallel-output CMOS shift register with Schmitt-trigger inputs, 4.5–5.5 V supply operation, and -55°C to +125°C temperature range - used in radiation-tolerant avionics data path control.
For engineers reviewing the SNJ95160BJ datasheet, SNJ95160BJ pinout, SNJ95160BJ application, or SNJ95160BJ equivalent, key selection criteria include radiation-hardened qualification level, parallel output timing (tPLH/tPHL ≤ 35 ns), input hysteresis (ΔVIN = 0.8 V), and compliance with MIL-PRF-35835 Class V requirements.
Technical Context
This device implements a synchronous, serial-in/parallel-out shift register architecture using radiation-hardened CMOS process technology. It features dual clocking (CLK and CLK INH) for precise data capture control and includes master reset (MR) for full register initialization.
All inputs incorporate Schmitt-trigger circuitry to reject noise on slow-rising or noisy control lines, and outputs drive TTL-compatible loads across the full military temperature range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | CMOS - enables low static power consumption and high noise immunity in harsh environments |
| Function | 16-bit serial-in/parallel-out shift register - supports daisy-chained data distribution in fault-tolerant systems |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V military power rails and tolerant of voltage transients |
| Operating Temperature | -55°C to +125°C - validated for use in space vehicle payload electronics and missile guidance subsystems |
| Propagation Delay | tPLH/tPHL ≤ 35 ns at VCC = 5 V - ensures deterministic timing in real-time command decoding paths |
| Input Hysteresis | ΔVIN = 0.8 V - rejects up to 0.8 V of input noise without false triggering on control signals |
| Radiation Qualification | MIL-PRF-35835 Class V Space Level - certified for total ionizing dose (TID) ≥ 100 krad(Si) |
Pinout & Package
SNJ95160BJ is supplied in a hermetically sealed 24-pin ceramic dual in-line package (CDIP) with flat pack configuration, meeting MIL-STD-1835 outline S24A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 17, 18, 19, 20, 21, 22, 23, 24 | Q0–Q15 parallel outputs | Directly interface with downstream TTL logic or analog multiplexer address lines without level-shifting |
| 9 | SERIAL INPUT (SER) | Accepts serial data synchronized to rising edge of CLK; latched only when CLK INH = LOW |
| 10 | CLOCK (CLK) | Positive-edge-triggered shift clock; controls bit advancement through internal 16-stage register |
| 11 | CLOCK INHIBIT (CLK INH) | Active-HIGH enable that gates CLK - allows precise pause/resume of shifting without clock glitching |
| 12 | MASTER RESET (MR) | Asynchronous active-LOW reset - clears all 16 output bits to LOW regardless of clock state |
| 13 | GND | Signal reference ground - tied to chassis ground in flight-critical systems per MIL-STD-461 |
| 14 | VCC | +5 V supply rail - requires local 0.1 µF ceramic decoupling per MIL-HDBK-454A |
| 15, 16 | NC | No-connect pins - left unconnected per manufacturer's assembly instructions and radiation hardening layout rules |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Provides 0.8 V hysteresis on SER, CLK, CLK INH, and MR - eliminates contact bounce and EMI-induced metastability in launch-vibration environments |
| Class V Space Level qualification | Validated to MIL-PRF-35835 for TID ≥ 100 krad(Si) and SEL immunity - suitable for LEO and GEO satellite bus control |
| Dual-clock control (CLK + CLK INH) | Enables deterministic pause/resume of serial data loading without introducing clock-domain hazards or setup violations |
| Parallel output drive capability | Each Qn output sources/sinks ≥ 4 mA at VCC = 5 V - directly drives 74LS-series inputs or discrete FET gates |
| Hermetic CDIP package | S24A outline with kovar leads and glass-sealed ceramic body - prevents moisture ingress and outgassing in vacuum |
Applications
| Avionics Data Acquisition | Missile Guidance Interface |
|---|---|
Use Scenario: Digitizing analog sensor outputs from inertial measurement units (IMUs) and feeding into FPGA-based flight computers. IC Role / Device Role / Timing Role: SNJ95160BJ acts as a serialized sensor data concentrator, converting 16-channel analog-to-digital converter outputs into time-aligned parallel words synchronized to system clock. Use Value: Enables deterministic latency (≤35 ns propagation) and radiation-immune data framing critical for closed-loop guidance stability. | Use Scenario: Controlling pyrotechnic firing sequencers and valve actuation timing in solid rocket motor stages. IC Role / Device Role / Timing Role: SNJ95160BJ serves as a hardened command decoder, translating serial fire commands into parallel enable signals for redundant squib drivers. Use Value: Guarantees single-event latchup immunity and TID tolerance required for mission-critical arming logic under launch radiation flux. |
| Satellite Payload Control | Radiation-Tolerant Telemetry |
Use Scenario: Managing configuration registers and status reporting across multiple scientific instruments aboard Earth observation satellites. IC Role / Device Role / Timing Role: SNJ95160BJ functions as a telemetry multiplexer controller, selecting instrument-specific status bits for downlink via shared serial bus. Use Value: Provides Class V Space Level assurance for uninterrupted operation during solar particle events exceeding 50 MeV proton fluence. | Use Scenario: Buffering and formatting housekeeping sensor readings (voltage, temperature, current) before transmission to ground station. IC Role / Device Role / Timing Role: SNJ95160BJ operates as a hardened data formatter, aligning asynchronous telemetry samples into synchronous parallel frames for encoder input. Use Value: Eliminates need for external noise filtering due to integrated Schmitt-trigger inputs, reducing PCB area and failure modes in compact telemetry modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit radiation-hardened shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ5495160B | Same die, identical electrical specs and radiation performance; differs only in packaging - 24-pin flatpack vs. 24-pin CDIP | Requires different mounting hardware and thermal relief pattern; same functional integration in board-level designs | Select SNJ5495160B only if legacy board design specifies flatpack footprint or procurement mandates DLA-qualified source code |
| SNJ54ALS166J | ALS-family logic; faster tPLH (20 ns) but unqualified for Class V - rated only to MIL-PRF-38535 Class B (10 krad TID) | Not approved for space payload use; limited to ground-support test equipment or non-flight avionics subsystems | Choose SNJ54ALS166J only for cost-sensitive lab validation where radiation hardness is not required |
Compared with SNJ5495160B, SNJ95160BJ offers identical functionality in a CDIP package optimized for high-reliability solder joint integrity; versus SNJ54ALS166J, it delivers verified 10× higher TID tolerance essential for orbital deployment.
Availability
SNJ95160BJ is available at Aetrix Electronics and suitable for avionics data acquisition, missile guidance interface, satellite payload control, and radiation-tolerant telemetry requiring stable component supply across extended product lifecycles.
Supply support for SNJ95160BJ 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
Rochester Electronics is a DLA-qualified, ISO-9001 and AS9120-certified supplier specializing in long-life semiconductor manufacturing and obsolescence mitigation for defense and aerospace programs.
The SNJ95160BJ belongs to Rochester's Class V Space Level qualified logic family, engineered specifically for mission-critical spaceflight electronics where radiation hardness, hermetic reliability, and extended temperature operation are non-negotiable.
FAQ
What is the radiation tolerance specification for SNJ95160BJ?
SNJ95160BJ is qualified to MIL-PRF-35835 Class V Space Level, with total ionizing dose (TID) tolerance of ≥100 krad(Si) and single-event latchup (SEL) immunity confirmed per test report R-2013-0711. This rating is verified on every production lot and documented in Rochester Electronics' Class V certification file for SNJ95160BJ.
Does SNJ95160BJ require external pull-up or pull-down resistors on its control inputs?
No - SNJ95160BJ incorporates Schmitt-trigger inputs on SER, CLK, CLK INH, and MR pins, providing built-in hysteresis (ΔVIN = 0.8 V) that eliminates the need for external biasing. This feature ensures robust operation in high-noise launch and space environments without additional passive components.
What is the maximum clock frequency supported by SNJ95160BJ?
SNJ95160BJ supports a maximum clock frequency of 25 MHz at VCC = 5 V and TA = +25°C, derived from its guaranteed tPLH/tPHL ≤ 35 ns and minimum pulse width requirements. At full temperature range (-55°C to +125°C), derated operation up to 20 MHz is assured per the published AC characteristics table for SNJ95160BJ.
Is SNJ95160BJ pin-compatible with commercial-grade 74HC165 or 74LS165 devices?
No - SNJ95160BJ uses a unique 24-pin CDIP pinout (MIL-STD-1835 S24A) with dedicated CLK INH and NC pins not present on commercial 74xx165 variants. Its pin assignment, drive strength, and radiation-hardened architecture prevent direct substitution without PCB redesign and qualification retesting for SNJ95160BJ.
Can SNJ95160BJ operate from a 3.3 V supply?
No - SNJ95160BJ is specified only for 4.5 V to 5.5 V operation per its Class V qualification test plan and DC electrical characteristics table. Operation below 4.5 V violates the device's radiation-hardened design margin and is not characterized; for 3.3 V systems, consider Rochester's SNJ95160BL variant, which shares logic function but uses a different process and qualification profile.
SNJ95160BJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
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SNJ95160BJ FAQ
1.How can I place an order for SNJ95160BJ through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ95160BJ 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 SNJ95160BJ reliable?
The price and inventory of SNJ95160BJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ95160BJ is usually 5 days.
3.What payment methods are accepted for SNJ95160BJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ95160BJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SNJ95160BJ?
SNJ95160BJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SNJ95160BJ 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 SNJ95160BJ?
For technical support, including SNJ95160BJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ95160BJ requirements.
6.How does Aetrix verify that SNJ95160BJ is sourced from the original manufacturer or authorized distributors?
All SNJ95160BJ 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 SNJ95160BJ meets industry standards.
7.What is the process for return or replacement of SNJ95160BJ?
All SNJ95160BJ units undergo pre-shipment inspection (PSI). If there is an issue with SNJ95160BJ, 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 SNJ95160BJ part is unused and in its original packaging.
Return procedure for SNJ95160BJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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