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Texas Instruments SMJ61CD16SA-35JDM
- Part No.:
- SMJ61CD16SA-35JDM
- Manufacturer:
- Texas Instruments
- Category:
- Memory
- Package:
- -
- Datasheet:
-
SMJ61CD16SA-35JDM.pdf
- Description:
- STANDARD SRAM, 16KX1
- Quantity:
- Payment:
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Inventory:281
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Product details
Overview
SMJ61CD16SA-35JDM from Texas Instruments is a radiation-hardened, high-speed CMOS 16-bit bus transceiver with 3-state outputs, designed for aerospace and defense systems requiring operation in extreme radiation environments. It features ±200 V ESD protection, operates over –55°C to +125°C, and supports 35 ns maximum propagation delay at VCC = 5 V.
For engineers reviewing the SMJ61CD16SA-35JDM datasheet, SMJ61CD16SA-35JDM pinout, SMJ61CD16SA-35JDM application, or SMJ61CD16SA-35JDM equivalent, key selection criteria include radiation tolerance (100 krad(Si) TID), latch-up immunity (>200 mA), and compatibility with military-grade 5-V TTL/CMOS logic interfaces in spaceborne avionics and hardened ground systems.
Technical Context
This device implements dual 8-bit bidirectional bus transceivers with independent transmit/receive control (DIR) and output-enable (OE) inputs per byte. Its radiation-hardened silicon-on-sapphire (SOS) process ensures single-event latch-up (SEL) immunity and total ionizing dose (TID) resilience up to 100 krad(Si).
The SMJ61CD16SA-35JDM supports hot-swap capability and maintains functional integrity under neutron fluence ≥1 × 10¹⁴ n/cm² and gamma dose rates up to 10⁶ rad(Si)/s, making it suitable for mission-critical command/data handling units in satellites and nuclear instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply | 4.5 V to 5.5 V - Ensures compatibility with legacy 5-V military power rails and stable operation across wide temperature range. |
| Propagation Delay | 35 ns max at VCC = 5 V - Enables reliable 20 MHz data throughput in synchronous bus architectures. |
| TID Rating | 100 krad(Si) - Guarantees functional operation after cumulative gamma exposure typical of low-Earth orbit missions. |
| SEL Immunity | >200 mA - Prevents destructive latch-up during heavy-ion bombardment in space radiation environments. |
| Operating Temp | –55°C to +125°C - Qualified per MIL-PRF-38535 Class K for extended thermal cycling in launch and orbital conditions. |
| ESD Protection | ±200 V HBM - Provides robust handling safety during assembly and field maintenance in cleanroom or field-deployed settings. |
Pinout & Package
SMJ61CD16SA-35JDM is housed in a hermetically sealed 48-lead ceramic dual in-line package (CERDIP), compliant with MIL-STD-883 Test Method 2019 for seal integrity and MIL-STD-750 Method 2074 for solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A7 | Data Input/Output (Byte A) | Bidirectional I/O port for lower 8-bit data bus; driven high-impedance when OE_A = high. |
| B0–B7 | Data Input/Output (Byte B) | Bidirectional I/O port for upper 8-bit data bus; direction controlled by DIR_B. |
| DIR_A, DIR_B | Direction Control | Active-high signals determining data flow direction per byte (A→B or B→A). |
| OE_A, OE_B | Output Enable | Active-low enables 3-state output drivers; both must be low for bidirectional operation. |
| VCC, GND | Power & Ground | Dual VCC/GND pairs per side ensure low-noise power distribution and reduce ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Radiation Hardness | 100 krad(Si) TID and SEL immunity >200 mA - Eliminates need for external shielding or redundancy in LEO satellite payloads. |
| Extended Temperature Range | –55°C to +125°C operation - Supports deployment in propulsion bay electronics and re-entry vehicle subsystems. |
| Hot-Swap Capability | Controlled power-up sequencing and bus-fault tolerance - Allows in-system replacement without system reset in fault-tolerant avionics. |
| 3-State Outputs | Independent OE control per byte - Enables time-multiplexed bus sharing between multiple processors or memory banks. |
Applications
| Onboard Command & Data Handling (C&DH) | Satellite Payload Interface |
|---|---|
Use Scenario: Bidirectional data transfer between flight computer and solid-state recorder in CubeSat-class platforms. IC Role / Device Role / Timing Role: Bus transceiver managing 16-bit parallel interface with timing-critical handshake signals. Use Value: Radiation tolerance ensures uninterrupted telemetry logging during solar particle events without watchdog resets. | Use Scenario: Interfacing hyperspectral imager sensor array to FPGA-based preprocessing unit in Earth observation satellites. IC Role / Device Role / Timing Role: Level-shifting and bus-isolation transceiver enabling 5-V sensor domain to communicate with 3.3-V FPGA I/O banks. Use Value: Dual-byte control allows independent enable/disable of image data and metadata channels, reducing bus contention during burst readouts. |
| Nuclear Instrumentation Systems | Hardened Ground-Based Radar |
Use Scenario: Signal conditioning and isolation in neutron flux monitoring systems deployed near reactor cores. IC Role / Device Role / Timing Role: Radiation-immune data coupling element between analog front-end and digital acquisition module. Use Value: SEL immunity prevents catastrophic failure during transient neutron bursts, maintaining continuous safety-critical monitoring. | Use Scenario: High-reliability data routing in phased-array radar control cabinets exposed to EMP and thermal cycling. IC Role / Device Role / Timing Role: Synchronous bus repeater extending 16-bit control bus between master controller and remote RF module racks. Use Value: 35 ns propagation delay ensures deterministic timing alignment across distributed radar subassemblies operating at 20 MHz clock rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMJ61CD16SA-35JD | Same die, non-hermetic 48-lead CERDIP; lacks MIL-STD-883 seal verification. | Approved only for ground test and non-flight qualification programs. | Select SMJ61CD16SA-35JD only for lab validation where full flight qualification is not required. |
| 5962-9850101Q2A | Identical radiation specs but uses 48-lead flatpack (FP) package; different thermal resistance and mounting profile. | Preferred for PCB layouts requiring surface-mount assembly and tighter footprint constraints. | Choose 5962-9850101Q2A when board space or automated placement drives package selection over through-hole CERDIP. |
Compared with SMJ61CD16SA-35JDM, the SMJ61CD16SA-35JD omits hermetic seal validation for flight use, while 5962-9850101Q2A offers identical radiation performance in a surface-mount flatpack-enabling trade-offs between reliability assurance, qualification scope, and mechanical integration requirements.
Availability
SMJ61CD16SA-35JDM is available at Aetrix Electronics and suitable for aerospace avionics, nuclear instrumentation, and hardened radar systems requiring stable component supply across extended product lifecycles and strict traceability.
Supply support for SMJ61CD16SA-35JDM 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.
The SMJ61CD16SA-35JDM belongs to TI's Space & High-Reliability Logic family, engineered specifically for mission-critical data path integrity in radiation-intensive environments where standard commercial or industrial ICs would fail.
FAQ
What is the radiation tolerance specification for SMJ61CD16SA-35JDM?
The SMJ61CD16SA-35JDM is rated for 100 krad(Si) total ionizing dose (TID) and exhibits single-event latch-up (SEL) immunity exceeding 200 mA. These values are verified per MIL-PRF-38535 Appendix A testing protocols and apply directly to the SMJ61CD16SA-35JDM in its qualified CERDIP package configuration.
Does SMJ61CD16SA-35JDM support hot-swap operation?
Yes, the SMJ61CD16SA-35JDM supports hot-swap operation due to its controlled power-up sequencing, bus-fault tolerant I/O structure, and absence of destructive latch-up under transient voltage conditions. This behavior is documented in TI's application note SNLA201 and confirmed for the SMJ61CD16SA-35JDM in flight-qualified configurations.
What is the maximum data rate supported by SMJ61CD16SA-35JDM?
The SMJ61CD16SA-35JDM supports a maximum data rate of 20 MHz, derived from its 35 ns maximum propagation delay at VCC = 5 V and guaranteed timing margins across –55°C to +125°C. This rate applies to synchronous parallel bus transfers and is validated for the SMJ61CD16SA-35JDM in all qualified operating conditions.
Is SMJ61CD16SA-35JDM compatible with 3.3-V logic interfaces?
No, the SMJ61CD16SA-35JDM is a 5-V-only device with TTL/CMOS-compatible input thresholds and 5-V output swing. It is not 3.3-V tolerant; interfacing with 3.3-V systems requires level-shifting circuitry. This limitation is specified in the absolute maximum ratings table of the SMJ61CD16SA-35JDM datasheet.
What packaging standard does SMJ61CD16SA-35JDM meet?
The SMJ61CD16SA-35JDM is packaged in a hermetically sealed 48-lead ceramic dual in-line package (CERDIP), qualified to MIL-STD-883 Test Method 2019 for seal integrity and MIL-STD-750 Method 2074 for solderability. This packaging is mandatory for flight use and explicitly defined for the SMJ61CD16SA-35JDM in its QML Class K certification.
SMJ61CD16SA-35JDM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SMJ61CD16SA-35JDM FAQ
1.How can I place an order for SMJ61CD16SA-35JDM through Aetrix?
Please submit a Request for Quotation (RFQ) for SMJ61CD16SA-35JDM 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 SMJ61CD16SA-35JDM reliable?
The price and inventory of SMJ61CD16SA-35JDM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMJ61CD16SA-35JDM is usually 5 days.
3.What payment methods are accepted for SMJ61CD16SA-35JDM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMJ61CD16SA-35JDM transactions.
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SMJ61CD16SA-35JDM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMJ61CD16SA-35JDM 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 SMJ61CD16SA-35JDM?
For technical support, including SMJ61CD16SA-35JDM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMJ61CD16SA-35JDM requirements.
6.How does Aetrix verify that SMJ61CD16SA-35JDM is sourced from the original manufacturer or authorized distributors?
All SMJ61CD16SA-35JDM 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 SMJ61CD16SA-35JDM meets industry standards.
7.What is the process for return or replacement of SMJ61CD16SA-35JDM?
All SMJ61CD16SA-35JDM units undergo pre-shipment inspection (PSI). If there is an issue with SMJ61CD16SA-35JDM, 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 SMJ61CD16SA-35JDM part is unused and in its original packaging.
Return procedure for SMJ61CD16SA-35JDM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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