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Texas Instruments CD54ACT541F3A
- Part No.:
- CD54ACT541F3A
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
CD54ACT541F3A.pdf
- Description:
- CD54ACT541 NON-INVERTING OCTAL B
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Inventory:181
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Product details
Overview
CD54ACT541F3A from Texas Instruments is a non-inverting octal 3-state buffer/line driver with dual active-LOW output enables, fabricated using Advanced CMOS Technology (ACT), operating over –55°C to +125°C, supporting 5-V supply, and delivering ±24 mA output drive per pin for high-noise-immunity bus interfacing in military-grade systems.
For engineers reviewing the CD54ACT541F3A datasheet, CD54ACT541F3A pinout, CD54ACT541F3A application, or CD54ACT541F3A equivalent, key selection criteria include its military temperature range, dual OE control logic, non-inverting data path, 5-V TTL-compatible inputs, and CDIP J-package mechanical compatibility with legacy high-reliability PCB layouts.
Technical Context
The CD54ACT541F3A implements eight independent non-inverting buffer channels, each with three-state output control governed by two shared active-LOW enable inputs (1OE and 2OE). Its ACT logic family ensures TTL-compatible input thresholds and CMOS-level output swing at 5 V.
It operates exclusively from a single 5-V supply, exhibits propagation delays of 6.5 ns (typical) at VCC = 5 V and TA = 25°C, and supports full military temperature operation without derating-enabling direct integration into avionics backplane drivers and radiation-tolerant control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ACT (Advanced CMOS with TTL-compatible inputs) |
| Supply Voltage | 5 V only - no wide-VCC operation; ensures stable timing and noise margin in fixed-rail military systems |
| Output Drive | ±24 mA per output - sufficient to drive 50-Ω transmission lines or 10+ TTL loads without external buffering |
| Propagation Delay | 6.5 ns max (A→Y, VCC = 5 V, TA = 25°C) - enables reliable 100-MHz bus clocking in synchronous control planes |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 Class B for extended environmental survivability |
| Input Compatibility | TTL-level thresholds (VIH = 2.0 V min, VIL = 0.8 V max) - allows seamless interface with legacy 5-V microcontrollers and FPGAs |
| Output State Control | Dual active-LOW enables (1OE, 2OE) - permits independent gating of two 4-bit groups for memory-mapped I/O partitioning |
Pinout & Package
CD54ACT541F3A is housed in a 20-pin Ceramic Dual-In-Line Package (CDIP) with J package drawing, hermetically sealed for moisture resistance and thermal stability across military temperature extremes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | Output Enable (1OE, 2OE) | Active-LOW enables for first four (pins 2–5) and last four (pins 13–16) outputs respectively |
| 2–5 | Data Inputs A1–A4 | Non-inverting inputs driving Y1–Y4 when 1OE = LOW |
| 6–7, 14–15 | GND / VCC | Power return and supply pins - dual GND/VCC placement minimizes ground bounce in high-speed switching |
| 9–12 | Data Inputs A5–A8 | Non-inverting inputs driving Y5–Y8 when 2OE = LOW |
| 13–16 | Outputs Y1–Y4 | Three-state buffered outputs of A1–A4 - high-Z when 1OE = HIGH |
| 17–18, 20 | VCC / GND / Y5–Y8 | Y5–Y8 outputs (active when 2OE = LOW); VCC (pin 20) and GND (pins 6, 7, 14, 15) distributed for low-impedance supply routing |
Key Features
| Feature | Design Value |
|---|---|
| Non-inverting 3-state buffering | Preserves signal polarity while enabling bidirectional bus arbitration via OE-controlled high-Z states |
| Dual independent output enables | Allows partitioned control of two 4-bit data lanes - critical for segmented address/data bus isolation in MIL-STD-1553 interfaces |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability for defense/aerospace deployments requiring QML certification |
| ACT logic speed-power balance | 6.5 ns delay at 5 V with <1 µA ICC static current - achieves high throughput without excessive power dissipation in conduction-limited enclosures |
| Ceramic DIP (J package) construction | Provides superior thermal conductivity, hermeticity, and mechanical rigidity versus plastic packages - essential for shock/vibration resilience |
Applications
| Avionics Data Bus Interface | Military Microcontroller I/O Expansion |
|---|---|
Use Scenario: Interfacing a radiation-hardened FPGA to a MIL-STD-1553B remote terminal bus. IC Role / Device Role / Timing Role: Non-inverting buffer isolating FPGA GPIOs from bus transceivers while enabling/disabling segments via dual OE control. Use Value: Prevents bus contention during hot-swap events and ensures deterministic timing with sub-7 ns propagation delay under full temperature range. |
Use Scenario: Expanding I/O on a legacy 80C86-based flight control computer with limited native parallel port resources. IC Role / Device Role / Timing Role: Octal buffer providing additional addressable latch outputs for sensor multiplexing and actuator control signals. Use Value: Enables direct connection to 5-V TTL peripherals without level-shifting, leveraging military-grade temperature tolerance for uncooled chassis operation. |
| Secure Communication Module Backplane | Hardened Test Equipment Signal Conditioning |
Use Scenario: Driving encrypted data lanes between secure crypto processors and high-speed ADC/DAC subsystems in COMSEC hardware. IC Role / Device Role / Timing Role: Bidirectional bus driver with controlled enable sequencing to prevent metastability during key exchange handshakes. Use Value: Dual OE inputs allow precise synchronization of data flow initiation, reducing setup/hold violations in deterministic real-time encryption pipelines. |
Use Scenario: Signal conditioning and isolation in automated test equipment used for burn-in validation of missile guidance ICs. IC Role / Device Role / Timing Role: Level-translating and fan-out buffer for stimulus pattern generators feeding multiple DUT sites simultaneously. Use Value: ±24 mA drive capability ensures clean edge integrity across 20-cm backplane traces, maintaining <1 ns skew across all eight channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal non-inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD74ACT541E | Plastic DIP (N package), commercial/military temp (–55°C to +125°C), same AC/ACT logic specs and pinout | Lacks hermetic seal and MIL-PRF-38535 qualification; suitable for cost-sensitive industrial prototypes but not flight hardware | Select CD74ACT541E only for ground-test fixtures or non-flight-critical subsystems where ceramic reliability is unnecessary |
| CD54AC541F3A | Same CDIP J package and military temp range, but AC logic family - higher propagation delay (8 ns), lower drive (±24 mA still valid), no TTL input compatibility | Lower speed and reduced noise immunity limit use in high-clock-rate avionics buses; acceptable for slower control-plane signaling | Choose CD54AC541F3A only when system timing budget allows >1.5 ns added delay and input sources are CMOS-only |
Compared with CD74ACT541E and CD54AC541F3A, the CD54ACT541F3A uniquely combines hermetic CDIP packaging, MIL-PRF-38535 Class B qualification, TTL-compatible inputs, and 6.5 ns speed - making it the sole option for production-deployed avionics requiring simultaneous reliability, interoperability, and performance.
Availability
CD54ACT541F3A is available at Aetrix Electronics and suitable for avionics data bus interface, military microcontroller I/O expansion, secure communication module backplane, and hardened test equipment signal conditioning requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for CD54ACT541F3A 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, with decades of heritage in aerospace and defense IC development.
The CD54ACT541F3A belongs to TI's military-grade Advanced CMOS (ACT) logic family, designed specifically for high-integrity digital interfacing in environments demanding extreme temperature resilience, radiation tolerance, and long-term supply assurance.
FAQ
What is the operating temperature range of the CD54ACT541F3A?
The CD54ACT541F3A is rated for operation from –55°C to +125°C and is fully qualified per MIL-PRF-38535 Class B, ensuring guaranteed functionality and parametric compliance across this entire military temperature range without derating or thermal monitoring circuits.
Does the CD54ACT541F3A support 3.3-V logic interfaces?
No, the CD54ACT541F3A is a 5-V-only device with TTL-compatible input thresholds and CMOS-level outputs referenced to 5 V. It does not support 3.3-V operation, and applying 3.3-V signals to its inputs may result in marginal or undefined switching behavior due to insufficient VIH margin.
Is the CD54ACT541F3A pin-compatible with the CD74ACT541 series?
Yes, the CD54ACT541F3A shares identical pinout and logic function with CD74ACT541 variants (e.g., CD74ACT541E, CD74ACT541M), but differs in package (hermetic CDIP J vs. plastic DIP N or SOIC DW) and qualification level (MIL-PRF-38535 Class B vs. commercial/military spec).
What is the maximum output current per pin for the CD54ACT541F3A?
The CD54ACT541F3A delivers ±24 mA DC output source/sink current per pin under steady-state conditions at VCC = 5 V and TA = 25°C, enabling direct drive of standard TTL loads or short PCB traces without external buffers or current-limiting resistors.
How are the two output enables (1OE and 2OE) used in system design?
The CD54ACT541F3A uses 1OE to control outputs Y1–Y4 and 2OE to control Y5–Y8, allowing independent gating of two 4-bit data groups. This enables memory-mapped I/O segmentation, selective bus arbitration, and fault-isolation schemes in safety-critical control architectures.
CD54ACT541F3A 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:
- -
CD54ACT541F3A FAQ
1.How can I place an order for CD54ACT541F3A through Aetrix?
Please submit a Request for Quotation (RFQ) for CD54ACT541F3A 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 CD54ACT541F3A reliable?
The price and inventory of CD54ACT541F3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD54ACT541F3A is usually 5 days.
3.What payment methods are accepted for CD54ACT541F3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD54ACT541F3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD54ACT541F3A?
CD54ACT541F3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD54ACT541F3A 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 CD54ACT541F3A?
For technical support, including CD54ACT541F3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD54ACT541F3A requirements.
6.How does Aetrix verify that CD54ACT541F3A is sourced from the original manufacturer or authorized distributors?
All CD54ACT541F3A 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 CD54ACT541F3A meets industry standards.
7.What is the process for return or replacement of CD54ACT541F3A?
All CD54ACT541F3A units undergo pre-shipment inspection (PSI). If there is an issue with CD54ACT541F3A, 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 CD54ACT541F3A part is unused and in its original packaging.
Return procedure for CD54ACT541F3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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