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Texas Instruments CD74FCT541M96G4
- Part No.:
- CD74FCT541M96G4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74FCT541M96G4.pdf
- Description:
- IC BUF NON-INVERT 5.25V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,181
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Product details
Overview
CD74FCT541M96G4 from Texas Instruments is a BiCMOS octal noninverting buffer/driver with 3-state outputs, designed for bus driving and memory address register buffering. It operates at 4.75–5.25 V, delivers 64 mA sink current per output, limits high-level output to 3.7 V to suppress EMI, and features dual active-low OE inputs for precise 3-state control.
For engineers reviewing the CD74FCT541M96G4 datasheet, CD74FCT541M96G4 pinout, CD74FCT541M96G4 application, or CD74FCT541M96G4 equivalent, this device is selected for high-noise-immunity digital interfacing where controlled edge rates, low ground bounce, and TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2 V) are critical in 5-V industrial and computing systems.
Technical Context
The CD74FCT541M96G4 implements a BiCMOS output stage combining bipolar and CMOS transistors to clamp VOH at ~3.7 V (two diode drops below VCC), reducing power-bus ringing and VCC/ground bounce during simultaneous switching. Its two-input AND gate logic for OE1/OE2 enables independent 3-state control per channel group.
It supports 0°C to 70°C operation with propagation delay tpd = 2–8 ns, enable time ten = 2–10 ns, and disable time tdis = 2–9.5 ns (VCC = 5 V). Input transition rate is specified up to 10 ns/V, and it exhibits SCR latch-up resistance via process and circuit design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.75 V to 5.25 V - Ensures compatibility with standard 5-V TTL/CMOS systems while maintaining noise margin. |
| IOL per Output | 64 mA - Enables direct drive of heavy capacitive loads or multiple TTL inputs without external buffers. | VOH Limit | 3.7 V max - Reduces ΔV on power rails during switching, lowering EMI and improving signal integrity. |
| tpd (A→Y) | 2–8 ns - Supports high-speed data transfer in address/data bus applications up to ~125 MHz effective rate. |
| Input Thresholds | VIL = 0.8 V, VIH = 2 V - Guarantees robust TTL-level compatibility and noise immunity in mixed-logic environments. |
| Thermal Impedance θJA | 58°C/W (SOIC DW package) - Allows sustained operation at full load in ambient temperatures up to 70°C without forced cooling. |
Pinout & Package
CD74FCT541M96G4 is housed in a 20-pin SOIC (DW) package, 7.6 mm × 12.83 mm footprint, 2.65 mm max height, RoHS-compliant NIPDAU lead finish, MSL Level-1 (unlimited reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low 3-state enable inputs - Both must be low for outputs Y1–Y8 to drive; either high forces all outputs into high-Z. |
| 2–9 | A1–A8 | Noninverting data inputs - Directly pass logic state to corresponding outputs when enabled. |
| 11–18 | Y1–Y8 | 3-state buffered outputs - Noninverted, BiCMOS-driven, 64-mA sink capable, VOH clamped to ≤3.7 V. |
| 10 | GND | Ground reference - Return path for all input/output currents and internal bias networks. |
| 20 | VCC | Positive supply - Powers internal logic and output stage; decoupling required near pin for bounce suppression. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS Output Architecture | Combines bipolar speed and CMOS low quiescent power, enabling 64-mA sink with <8 ns propagation delay. |
| Controlled Output Edge Rates | Reduces simultaneous switching noise (SSN), minimizing VCC bounce and radiated EMI in dense PCB layouts. |
| Input/Output Isolation from VCC | Prevents back-drive damage during hot-insertion or partial power-down sequences. |
| SCR Latch-Up Resistance | Guaranteed by BiCMOS process and layout design - essential for reliability in industrial environments. |
| Buffered Inputs | High-impedance CMOS inputs reduce loading on upstream drivers and improve fan-out capability. |
Applications
| Memory Address Buffering | Microprocessor Bus Interface |
|---|---|
Use Scenario: Driving 20-bit address lines from a microcontroller to SRAM or EPROM chips in embedded control systems. IC Role / Device Role / Timing Role: Noninverting octal buffer providing level translation, fan-out expansion, and noise-suppressed output switching. Use Value: VOH clamping to 3.7 V reduces ground bounce across shared memory bus, preventing address corruption during burst writes. | Use Scenario: Isolating and strengthening data/address/control signals between an FPGA and legacy 5-V peripheral ICs. IC Role / Device Role / Timing Role: Bidirectional-capable 3-state driver enabling time-multiplexed bus sharing with precise OE-controlled directionality. Use Value: Dual OE inputs allow independent gating of two 4-bit subgroups, supporting segmented bus arbitration without additional logic. |
| Industrial PLC I/O Expansion | Test Equipment Signal Conditioning |
Use Scenario: Interfacing microcontroller GPIOs to opto-isolated input modules requiring 5-V TTL-compatible drive strength. IC Role / Device Role / Timing Role: Robust 3-state buffer ensuring clean signal transmission despite long traces and noisy 24-V field wiring. Use Value: 64-mA sink current and latch-up resistance withstand transient coupling from relay coils and motor drives. | Use Scenario: Conditioning digital stimulus signals in automated test equipment before routing to DUT pins. IC Role / Device Role / Timing Role: Low-skew, low-bounce buffer isolating pattern generator outputs from variable capacitive loads. Use Value: Controlled edge rates and 58°C/W thermal performance maintain timing accuracy and signal fidelity across temperature-cycled test cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74F541N | Faster tpd (1.5–6 ns) but higher ICC (up to 100 mA); no VOH clamping - outputs swing to full VCC. | Higher EMI risk in dense layouts; less suitable for noise-sensitive bus segments. | Choose SN74F541N only when maximum speed outweighs EMI and ground-bounce constraints. |
| 74ACT541SCX | ACT-family CMOS; VOH = VCC – 0.5 V typical, IOL = 24 mA, lower ICC (2 µA typ), wider VCC range (4.5–5.5 V). | Lower drive strength limits use with >10-TTL loads; better for low-power, low-noise, but not high-fanout buses. | Choose 74ACT541SCX for battery-powered or thermally constrained designs where 24-mA drive suffices. |
Compared with SN74F541N and 74ACT541SCX, CD74FCT541M96G4 uniquely balances 64-mA drive, EMI-suppressing VOH clamping, and BiCMOS efficiency - making it optimal for industrial 5-V bus interfaces demanding both robustness and signal integrity.
Availability
CD74FCT541M96G4 is available at Aetrix Electronics and suitable for memory address buffering, microprocessor bus interfacing, and industrial PLC I/O expansion requiring stable component supply and long-term manufacturability.
Supply support for CD74FCT541M96G4 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, embedded processing, and logic solutions for industrial, automotive, and communications markets.
CD74FCT541M96G4 belongs to the 74FCT family of fast CMOS-compatible logic devices, engineered for high-speed, low-noise 5-V system interfacing with enhanced latch-up immunity and controlled switching behavior.
FAQ
What is the recommended power supply decoupling for CD74FCT541M96G4?
Place a 0.1-µF ceramic capacitor between VCC (pin 20) and GND (pin 10) as close as possible to the device. For systems with multiple CD74FCT541M96G4 units or high switching activity, add a 4.7-µF bulk capacitor nearby. This minimizes VCC bounce caused by the 64-mA output transitions and ensures stable VOH clamping at 3.7 V.
How does the dual OE input structure of CD74FCT541M96G4 affect system design?
The CD74FCT541M96G4 uses an internal two-input AND gate for OE1 and OE2, meaning both must be low to enable outputs. This allows hierarchical bus control - e.g., OE1 tied to system-level chip select and OE2 to local peripheral enable - giving designers fine-grained 3-state arbitration without external logic. Pull-up resistors to VCC ensure safe high-Z state at power-up.
Can CD74FCT541M96G4 drive TTL loads directly?
Yes, CD74FCT541M96G4 is fully TTL-compatible: VIH = 2 V and VIL = 0.8 V meet standard TTL thresholds, and its 64-mA sink current exceeds the 16-mA requirement for driving 10 standard TTL inputs. Its VOH clamping to 3.7 V remains within TTL VOH min (2.4 V), ensuring reliable high-level recognition.
What is the significance of the 3.7-V VOH limit in CD74FCT541M96G4?
The 3.7-V VOH limit in CD74FCT541M96G4 results from a BiCMOS output stage that drops VCC by two diode junctions. This intentional limitation reduces ΔV on power rails during simultaneous switching, cutting electromagnetic interference and ground bounce - critical for signal integrity in high-density 5-V digital systems like industrial controllers and test equipment.
Is CD74FCT541M96G4 suitable for hot-swap applications?
CD74FCT541M96G4 provides input/output isolation from VCC and SCR latch-up-resistant design, enhancing tolerance to voltage transients during insertion. However, it lacks explicit hot-swap circuitry (e.g., slew-rate control or undervoltage lockout), so external protection (series resistors, TVS diodes) is recommended. Its BiCMOS architecture improves robustness over standard CMOS, but full hot-swap compliance requires system-level design beyond CD74FCT541M96G4 alone.
CD74FCT541M96G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74FCT
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 15mA, 64mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CD74FCT541M96G4 FAQ
1.How can I place an order for CD74FCT541M96G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74FCT541M96G4 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 CD74FCT541M96G4 reliable?
The price and inventory of CD74FCT541M96G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74FCT541M96G4 is usually 5 days.
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CD74FCT541M96G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74FCT541M96G4 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 CD74FCT541M96G4?
For technical support, including CD74FCT541M96G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74FCT541M96G4 requirements.
6.How does Aetrix verify that CD74FCT541M96G4 is sourced from the original manufacturer or authorized distributors?
All CD74FCT541M96G4 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 CD74FCT541M96G4 meets industry standards.
7.What is the process for return or replacement of CD74FCT541M96G4?
All CD74FCT541M96G4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74FCT541M96G4, 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 CD74FCT541M96G4 part is unused and in its original packaging.
Return procedure for CD74FCT541M96G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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