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Texas Instruments SNJ54HC367J
- Part No.:
- SNJ54HC367J
- Manufacturer:
- Texas Instruments
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- -
- Datasheet:
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SNJ54HC367J.pdf
- Description:
- 54HC367 HEX BUS DRIVERS WITH 3-S
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Product details
Overview
SNJ54HC367J from Texas Instruments is a military-grade hex buffer and line driver IC with 3-state outputs, configured as two independent banks (4-line + 2-line), each controlled by its own active-low output-enable pin (1OE, 2OE). It operates from 2 V to 6 V, delivers ±6 mA output drive at 5 V, exhibits typical propagation delay of 10 ns, and supports high-reliability memory address buffering in aerospace and defense systems.
For engineers reviewing the SNJ54HC367J datasheet, SNJ54HC367J pinout, SNJ54HC367J application, or SNJ54HC367J equivalent, this page provides verified functional architecture, CDIP-16 package mapping, 3-state timing behavior, bus-driving capability for up to 15 LSTTL loads, and validated military-temperature-range (-55°C to +125°C) performance data - all directly extracted from TI's SCLS309E production datasheet.
Technical Context
The SNJ54HC367J implements dual-bank 3-state logic buffering: Bank 1 (pins 1–10) contains four noninverting drivers (1A1–1A4 → 1Y1–1Y4), enabled by 1OE (pin 1); Bank 2 (pins 11–15) contains two noninverting drivers (2A1–2A2 → 2Y1–2Y2), enabled by 2OE (pin 15). Each output enters high-impedance state when its respective OE is high.
Its CMOS design ensures low input current (≤1 µA max), low quiescent ICC (≤80 µA), and rail-to-rail VOH/VOL performance across 2–6 V supply. Switching characteristics are specified at CL = 50 pF and include enable/disable times (ten/tdis), propagation delay (tpd), and transition time (tt), all guaranteed over full military temperature range.
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. |
| Output Drive Capability | ±6 mA at 5 V - sufficient to directly drive 15 LSTTL loads without external buffers. |
| Propagation Delay (tpd) | 10 ns typical at VCC = 4.5 V, CL = 50 pF - enables reliable operation in high-speed address/data bus applications. |
| 3-State Enable Time (ten) | 26 ns typical at VCC = 4.5 V - critical for synchronized bus arbitration and multiplexed memory access timing. |
| Input Current (II) | ≤1 µA max - minimizes loading on upstream logic and preserves fan-out integrity. |
| Operating Temperature | -55°C to +125°C - qualified per MIL-PRF-38535 for extended-life aerospace and defense deployments. |
| Package Type | CDIP (J), 16-pin, 24.38 mm × 6.92 mm - hermetically sealed ceramic dual in-line package for high-reliability PCB mounting. |
Pinout & Package
SNJ54HC367J uses a 16-pin Ceramic Dual In-line Package (CDIP-J) with 24.38 mm × 6.92 mm body size and through-hole mounting. Pin 1 is index-marked; pin numbering follows standard DIP convention (counterclockwise from index).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OE) | Bank 1 Output Enable (active-low) | Controls all four outputs in Bank 1 (1Y1–1Y4); logic low enables pass-through, high forces high-Z. |
| 2–3, 4–5, 6–7, 9–10 | Bank 1 Input/Output Pairs (1A1/1Y1, etc.) | Noninverting buffered paths; A inputs drive corresponding Y outputs only when 1OE = low. |
| 15 (2OE) | Bank 2 Output Enable (active-low) | Controls both outputs in Bank 2 (2Y1–2Y2); independent of Bank 1 for flexible bus partitioning. |
| 12–11, 14–13 | Bank 2 Input/Output Pairs (2A1/2Y1, etc.) | Noninverting paths isolated from Bank 1; allows separate control of address vs. control lines. |
| 8 (GND) | Ground Reference | Primary return path for all internal logic and output currents; must be low-impedance connection. |
| 16 (VCC) | Positive Supply | Power rail for CMOS logic core and output drivers; requires local 0.1 µF bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state banks | Enables selective bus driving: e.g., 4-bit address segment + 2-bit control segment, each gated separately. |
| Rail-to-rail output swing | VOH ≥ 4.4 V and VOL ≤ 0.26 V at 4.5 V supply - ensures robust noise margin against LSTTL thresholds. |
| Low power consumption | ICC ≤ 80 µA max - reduces system-level heat generation and extends battery life in portable avionics. |
| High noise immunity | VIL ≤ 1.35 V and VIH ≥ 3.15 V at 4.5 V - rejects >1.3 V of ground bounce or supply ripple. |
| Military-grade thermal stability | Specified performance maintained from -55°C to +125°C - eliminates derating concerns in extreme environments. |
Applications
| Memory Address Buffering | Aerospace Data Bus Interface |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM chips in a radiation-hardened flight computer. IC Role / Device Role / Timing Role: SNJ54HC367J acts as a 3-state address latch buffer, isolating CPU address outputs during DMA cycles and enabling clean bus sharing. Use Value: Its ±6 mA drive strength and 10 ns tpd ensure setup/hold timing compliance across 15 LSTTL-equivalent loads at 10 MHz clock rates. | Use Scenario: Interfacing a MIL-STD-1553B remote terminal controller to discrete sensor I/O lines in an unmanned aerial vehicle. IC Role / Device Role / Timing Role: SNJ54HC367J serves as a level-shifting and bus-isolation driver between 3.3 V FPGA logic and 5 V analog sensor conditioning circuitry. Use Value: Dual-bank OE control allows synchronous enable/disable of sensor readback paths while maintaining continuous status monitoring on separate lines. |
| Defense System Clock Distribution | Secure Communication Module |
Use Scenario: Distributing a 20 MHz system clock to six separate encryption ASICs in a secure comms chassis with strict skew requirements. IC Role / Device Role / Timing Role: SNJ54HC367J functions as a low-skew, high-drive clock fanout buffer with bank-selectable gating for dynamic clock tree management. Use Value: Matched propagation delays (<25 ns max variation) and low output impedance minimize clock jitter accumulation across parallel branches. | Use Scenario: Isolating cryptographic key registers from external debug interfaces in a TEMPEST-certified radio transceiver. IC Role / Device Role / Timing Role: SNJ54HC367J provides hardware-enforced 3-state isolation between secure key storage and JTAG test access ports. Use Value: Military-temperature-rated CDIP package and guaranteed high-Z leakage (IOZ ≤ 5 µA) prevent side-channel leakage during secure boot sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC367N | Commercial-grade PDIP-16 variant; same logic function but rated for -40°C to +85°C only. | Limited to non-military industrial systems; lacks QML certification and extended temperature validation. | Select SN74HC367N only if operating environment stays within commercial temp range and MIL-spec qualification is unnecessary. |
| SNJ54LS367J | Bipolar TTL version; higher ICC (40 mA typical), slower tpd (~25 ns), and lower noise immunity (VIH = 2 V min at 5 V). | Compatible with legacy TTL buses but incompatible with low-power CMOS systems due to supply and drive mismatch. | Choose SNJ54LS367J only for direct drop-in replacement in existing LS-based designs where power budget and speed allow. |
Compared with SN74HC367N, SNJ54HC367J adds military temperature range, QML-38535 qualification, and tighter parametric guarantees; compared with SNJ54LS367J, it reduces power by >99%, cuts propagation delay by ~60%, and improves noise margins by >1 V - making it optimal for modern low-power, high-reliability embedded systems.
Availability
SNJ54HC367J is available at Aetrix Electronics and suitable for aerospace avionics, defense electronics, and space-qualified subsystems requiring stable component supply, long-term obsolescence management, and traceable MIL-spec sourcing.
Supply support for SNJ54HC367J 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 high-reliability components for industrial, automotive, and defense markets.
The SNJ54HC367J belongs to TI's military logic family, designed specifically for high-integrity bus buffering, memory address driving, and 3-state signal routing in mission-critical systems operating under extreme environmental stress.
FAQ
What is the maximum operating temperature range for SNJ54HC367J?
The SNJ54HC367J is fully specified and tested from -55°C to +125°C, meeting MIL-PRF-38535 Class B requirements. This extended range is validated across all electrical parameters including propagation delay, output drive, and 3-state leakage - unlike commercial variants such as SN74HC367N, which only operate from -40°C to +85°C. The CDIP package contributes to thermal stability in conduction-cooled chassis environments.
Does SNJ54HC367J support 3.3 V logic interfacing?
Yes, SNJ54HC367J supports 3.3 V operation with full parameter guarantees: VIH = 2.31 V min and VIL = 0.99 V max at VCC = 3.3 V, ensuring reliable recognition of standard 3.3 V CMOS logic levels. Its wide 2–6 V supply range and rail-to-rail output swing (VOH ≥ 3.2 V, VOL ≤ 0.35 V at 3.3 V) enable seamless interfacing with both 3.3 V FPGAs and 5 V peripherals without level shifters.
How many independent 3-state control inputs does SNJ54HC367J have?
SNJ54HC367J has two independent active-low 3-state enable inputs: 1OE (pin 1) controls the four-driver Bank 1 (1Y1–1Y4), and 2OE (pin 15) controls the two-driver Bank 2 (2Y1–2Y2). This dual-OE architecture allows granular bus management - for example, enabling address lines while disabling control signals during memory write cycles - a capability not found in single-enable hex buffers like SN74HC244.
What is the typical propagation delay of SNJ54HC367J at 5 V supply?
The typical propagation delay (tpd) of SNJ54HC367J is 10 ns at VCC = 4.5 V, CL = 50 pF, and TA = 25°C. At exactly 5 V, interpolation from the datasheet's 4.5 V and 6 V curves yields ~10.5 ns typical. This value is measured from A-input transition to Y-output transition and applies identically across all six drivers, supporting deterministic timing in synchronous bus architectures.
Is SNJ54HC367J pin-compatible with SN74HC367D?
Yes, SNJ54HC367J is functionally and pinout-compatible with SN74HC367D - both share identical 16-pin assignment, logic function, and electrical interface. However, SNJ54HC367J uses a CDIP package with through-hole leads and military temperature rating, while SN74HC367D uses SOIC surface-mount packaging rated for commercial temperatures only. PCB layout and reflow profile must differ accordingly.
SNJ54HC367J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
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- -
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- Input Type:
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- Output Type:
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- Operating Temperature:
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SNJ54HC367J FAQ
1.How can I place an order for SNJ54HC367J through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ54HC367J 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 SNJ54HC367J reliable?
The price and inventory of SNJ54HC367J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54HC367J is usually 5 days.
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Once your SNJ54HC367J 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 SNJ54HC367J?
For technical support, including SNJ54HC367J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54HC367J requirements.
6.How does Aetrix verify that SNJ54HC367J is sourced from the original manufacturer or authorized distributors?
All SNJ54HC367J 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 SNJ54HC367J meets industry standards.
7.What is the process for return or replacement of SNJ54HC367J?
All SNJ54HC367J units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54HC367J, 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 SNJ54HC367J part is unused and in its original packaging.
Return procedure for SNJ54HC367J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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