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Texas Instruments CD54HCT367F3A
- Part No.:
- CD54HCT367F3A
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CD54HCT367F3A.pdf
- Description:
- CD54HCT367 HIGH SPEED CMOS LOGIC
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Inventory:2,699
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Product details
Overview
CD54HCT367F3A from Texas Instruments is a high-speed CMOS hex non-inverting three-state buffer with dual independent output enables (OE1 controls Y1–Y4; OE2 controls Y5–Y6), 16-pin CERDIP package, -55°C to +125°C operating range, and 9ns typical propagation delay at VCC = 5V, CL = 15pF. It drives up to 15 LSTTL loads and serves as a bus driver in military-grade data acquisition systems requiring robust temperature performance and TTL-compatible inputs.
For engineers reviewing the CD54HCT367F3A datasheet, CD54HCT367F3A pinout, CD54HCT367F3A application, or CD54HCT367F3A equivalent, key selection criteria include its HCT-family 4.5V–5.5V operation, direct LSTTL input compatibility (VIL ≤ 0.8V, VIH ≥ 2.0V), three-state bus driving capability, and CERDIP packaging for hermetic reliability in extended-temperature environments.
Technical Context
The CD54HCT367F3A implements six identical non-inverting buffer circuits with two separate three-state enable controls-OE1 governs outputs Y1–Y4, while OE2 governs Y5–Y6-enabling selective bus segment control. Its silicon-gate CMOS process delivers LSTTL-compatible input thresholds and high-current bus driver outputs.
It operates strictly within 4.5V–5.5V supply range, exhibits balanced tPLH/tPHL propagation delays (9ns typ. @5V/15pF), and maintains stable three-state leakage (±5µA max over full temperature range), making it suitable for hot-swap-capable backplane interfaces and radiation-tolerant avionics subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | HCT - TTL-compatible inputs, CMOS power efficiency, 4.5V–5.5V only |
| Propagation Delay | 9ns typical @ VCC=5V, CL=15pF - enables >55 MHz bus clocking in low-skew configurations |
| Output Drive | 15 LSTTL loads - supports fanout to multiple legacy TTL receivers without buffering |
| Operating Temp | -55°C to +125°C - qualified for military/aerospace applications per MIL-PRF-38535 |
| Supply Voltage | 4.5V–5.5V - rejects ripple and noise common in switched-mode power supplies |
| Input Thresholds | VIL ≤ 0.8V, VIH ≥ 2.0V - ensures reliable logic-level translation from standard LS-TTL sources |
| Three-State Leakage | ±5µA max @ -55°C to +125°C - prevents bus contention during enable transitions in multi-driver systems |
Pinout & Package
CD54HCT367F3A uses a 16-lead CERDIP (Ceramic Dual In-line Package) with hermetic sealing, 0.3-inch body width, and J-lead configuration compliant with MIL-STD-1835. Pin 1 is top-left corner when notch faces up; pin numbering follows standard DIP convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | OE1, OE2 | Active-low enables: OE1 controls Y1–Y4; OE2 controls Y5–Y6 - allows independent gating of two bus segments |
| 2, 4, 6, 10, 12, 14 | A1–A6 | Non-inverting data inputs - accept TTL/CMOS logic levels; VIH/VIL defined for 4.5V–5.5V operation |
| 3, 5, 7, 11, 13, 16 | Y1–Y6 | Buffered non-inverting outputs - high-current drive (±35mA) enables direct connection to 15 LSTTL loads |
| 8 | GND | Ground reference - must be low-impedance connection to minimize ground bounce in high-speed switching |
| 16 | VCC | Positive supply - requires local 0.1µF ceramic decoupling adjacent to pin to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Two independent three-state enables | Enables partial bus isolation: Y1–Y4 and Y5–Y6 can be controlled separately to reduce contention risk |
| LSTTL input compatibility | Accepts standard TTL logic levels without level-shifting circuitry - simplifies interface with legacy controllers |
| High-current bus driver outputs | Delivers ±35mA per output - drives long traces or heavy capacitive loads without external buffers |
| Wide temperature range | -55°C to +125°C operation - meets MIL-PRF-38535 Class B requirements for space and defense platforms |
| Low power dissipation | ICC ≤ 160µA max over full temperature range - reduces thermal load in densely packed modules |
Applications
| Avionics Data Bus Interface | Military Sensor Signal Conditioning |
|---|---|
Use Scenario: Interfacing ADCs and discrete I/O to a 16-bit MIL-STD-1553B remote terminal controller under extreme thermal cycling. IC Role / Device Role / Timing Role: Hex non-inverting buffer isolates and strengthens digital sensor outputs before transmission across noisy airframe wiring harnesses. Use Value: CERDIP packaging and -55°C to +125°C rating ensure uninterrupted operation during high-altitude flight profiles and desert deployment. | Use Scenario: Level-shifting and bus-driving signals from radiation-hardened FPGAs to analog front-end modules in missile guidance electronics. IC Role / Device Role / Timing Role: Three-state buffer provides controlled bidirectional data flow on shared sensor readout buses with precise enable timing. Use Value: Dual OE pins allow staggered activation of sensor channels, minimizing simultaneous switching noise in mixed-signal subsystems. |
| Tactical Radio Baseband Processing | Secure Communication Crypto Module |
Use Scenario: Driving parallel data paths between encryption ASICs and RF transceiver ICs in handheld SATCOM radios exposed to shock/vibration. IC Role / Device Role / Timing Role: Non-inverting buffer conditions clock and data lines between baseband processor and modulator/demodulator blocks. Use Value: 9ns propagation delay and balanced transition times maintain setup/hold margins for 20+ Mbps serial data streams. | Use Scenario: Isolating key management registers and status flags between secure microcontroller and tamper-detection circuitry in NSA-certified crypto hardware. IC Role / Device Role / Timing Role: Three-state buffer enforces strict physical separation between sensitive control domains during power-up and reset sequences. Use Value: Low ICC (≤160µA) and minimal three-state leakage (±5µA) prevent side-channel current signatures exploitable in fault injection attacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex non-inverting three-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD74HCT367M | SOIC-16 package; same electrical specs but non-hermetic, commercial temp range (-55°C to +125°C not guaranteed) | Suitable for industrial control panels but not certified for flight-critical avionics | Select when cost and PCB assembly speed outweigh hermeticity and MIL-spec qualification needs |
| SN74ACT367N | ACT family: 4.5V–5.5V, higher drive (±24mA), faster (7.5ns typ.), but no military temp rating or CERDIP option | Used in high-speed test equipment where speed matters more than extended temperature compliance | Choose for lab-grade instrumentation requiring sub-8ns delay and lower input capacitance (5pF vs. 10pF) |
Compared with CD74HCT367M and SN74ACT367N, the CD54HCT367F3A uniquely combines MIL-qualified temperature range, hermetic CERDIP packaging, and HCT-level TTL compatibility-making it irreplaceable in deployed defense systems where field reliability under environmental stress is non-negotiable.
Availability
CD54HCT367F3A is available at Aetrix Electronics and suitable for avionics data bus interfaces, military sensor signal conditioning, tactical radio baseband processing, and secure communication crypto modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD54HCT367F3A 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 delivering analog and embedded processing solutions, with over 90 years of innovation in high-reliability components for aerospace, defense, and industrial markets.
The CD54HCT367F3A belongs to TI's military-grade HCT logic family, designed specifically for applications demanding LSTTL compatibility, extended temperature operation, and hermetic packaging in mission-critical electronic systems.
FAQ
What is the maximum operating voltage for CD54HCT367F3A?
The CD54HCT367F3A has an absolute maximum supply voltage of 7V, but its functional operating range is strictly 4.5V to 5.5V per HCT logic specifications. Operation outside this window violates input threshold guarantees and may cause unreliable switching or increased ICC. The CD54HCT367F3A must be powered from a regulated 5V ±5% source to ensure compliance with VIL ≤ 0.8V and VIH ≥ 2.0V requirements.
Does CD54HCT367F3A support hot-swap insertion?
The CD54HCT367F3A is not explicitly rated for hot-swap operation. While its three-state outputs and ±20mA absolute maximum diode current provide some tolerance, the device lacks built-in hot-swap protection features such as slew-rate limiting or undervoltage lockout. For backplane applications requiring live insertion, external current-limiting resistors and sequencing controls must be implemented. The CD54HCT367F3A datasheet does not specify hot-swap qualification per JEDEC JESD22-B105.
Can CD54HCT367F3A drive a 50pF load at 10MHz?
Yes, the CD54HCT367F3A can reliably drive a 50pF load at 10MHz. At VCC = 5V and CL = 50pF, its typical propagation delay remains ≤38ns and output transition time ≤18ns, ensuring sufficient timing margin for 10MHz (100ns period) operation. Its ±35mA output drive capability also supports fast edge rates into that capacitance. However, layout best practices-including short traces, ground plane, and local decoupling-are essential to maintain signal integrity at this frequency.
Is CD54HCT367F3A pin-compatible with CD54HC367F3A?
Yes, CD54HCT367F3A is pin-compatible with CD54HC367F3A - both share identical 16-pin CERDIP pinout, logic function, and terminal assignments. However, they differ electrically: CD54HC367F3A operates from 2V–6V and has CMOS-input thresholds, while CD54HCT367F3A requires 4.5V–5.5V and accepts TTL-level inputs. Swapping them requires verifying supply voltage and upstream driver compatibility to avoid logic errors or excessive ICC.
What is the meaning of 'F3A' in CD54HCT367F3A?
The 'F3A' suffix in CD54HCT367F3A denotes Texas Instruments' standardized military-grade packaging and screening code: 'F' indicates hermetic ceramic DIP (CERDIP), '3' specifies lead finish (tin-lead per MIL-STD-1835), and 'A' identifies the revision level and conformance to MIL-PRF-38535 Class B quality requirements. This suffix confirms the device meets screening for burn-in, temperature cycling, and steady-state life testing required for high-reliability defense applications.
CD54HCT367F3A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54HCT
- 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:
- -
CD54HCT367F3A FAQ
1.How can I place an order for CD54HCT367F3A through Aetrix?
Please submit a Request for Quotation (RFQ) for CD54HCT367F3A 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 CD54HCT367F3A reliable?
The price and inventory of CD54HCT367F3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD54HCT367F3A is usually 5 days.
3.What payment methods are accepted for CD54HCT367F3A?
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4.How is shipping managed for CD54HCT367F3A?
CD54HCT367F3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD54HCT367F3A 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 CD54HCT367F3A?
For technical support, including CD54HCT367F3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD54HCT367F3A requirements.
6.How does Aetrix verify that CD54HCT367F3A is sourced from the original manufacturer or authorized distributors?
All CD54HCT367F3A 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 CD54HCT367F3A meets industry standards.
7.What is the process for return or replacement of CD54HCT367F3A?
All CD54HCT367F3A units undergo pre-shipment inspection (PSI). If there is an issue with CD54HCT367F3A, 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 CD54HCT367F3A part is unused and in its original packaging.
Return procedure for CD54HCT367F3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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