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Texas Instruments CD74HC541M96G4
- Part No.:
- CD74HC541M96G4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74HC541M96G4.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,324
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Product details
Overview
CD74HC541M96G4 from Texas Instruments is a non-inverting octal buffer and line driver with three-state outputs, designed for bidirectional bus interfacing in 2 V to 6 V digital systems. It delivers 9 ns typical propagation delay at 5 V/15 pF, drives up to 15 LSTTL loads, and operates across –55℃ to 125℃ for industrial and aerospace applications.
For engineers reviewing the CD74HC541M96G4 datasheet, CD74HC541M96G4 pinout, CD74HC541M96G4 application, or CD74HC541M96G4 equivalent, this page provides verified functional modes, thermal metrics, bus-driving capability, and SOIC-20 package compatibility for high-reliability logic interface design.
Technical Context
The CD74HC541M96G4 implements dual independent output-enable controls (OE1 and OE2): either input HIGH forces all eight outputs into high-impedance state, while simultaneous LOW enables non-inverting data transfer. Its HC logic family ensures CMOS-level noise immunity (NIL/NIH = 30% of VCC) and rail-to-rail output swing.
Designed for bus-oriented architectures, it supports fanout of 15 LSTTL loads per output and exhibits balanced tPLH/tPHL and tTHL/tTLH transition times. Propagation delay remains stable across full temperature range (–55℃ to 125℃) and supply voltage (2 V to 6 V), with quiescent current ≤160 μA at 6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | High-speed CMOS (HC), compatible with 2–6 V supply |
| Function | Non-inverting octal buffer with three-state outputs |
| Propagation Delay | 9 ns typical at VCC = 5 V, CL = 15 pF - enables sub-100 MHz bus timing |
| Output Drive | 15 LSTTL loads - sufficient for legacy TTL bus termination without external drivers |
| Operating Temp | –55℃ to 125℃ - qualified for extended industrial and military environments |
| Input Leakage | ±1 μA max at 6 V - minimizes static power in high-impedance control paths |
| Three-State Leakage | ±10 μA max at 6 V - ensures clean bus isolation during disable |
Pinout & Package
CD74HC541M96G4 uses a 20-pin SOIC (DW) package measuring 12.80 mm × 7.50 mm, with standard 0.65 mm lead pitch and RoHS-compliant NiPdAu finish. MSL Level-1 rating supports uncompromised reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Inputs (A0–A7) | Non-inverting data inputs; must be tied HIGH/LOW if unused to prevent floating |
| 9, 10, 11, 12, 13, 14, 15, 16 | Outputs (Y0–Y7) | Three-state buffered outputs; high-impedance when OE1 or OE2 = HIGH |
| 17, 18 | Output Enables (OE1, OE2) | Active-LOW enables; either HIGH disables all outputs - dual-control redundancy |
| 19 | GND | Ground reference for logic and power return path |
| 20 | VCC | Positive supply rail (2–6 V); requires local 0.1 μF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Non-inverting data path | Preserves signal polarity across all eight channels - essential for address/data bus integrity |
| Dual output-enable inputs | Enables hierarchical bus control: OE1/OE2 can be driven by separate system-level signals |
| 15-LSTTL load drive | Eliminates need for additional bus buffers in mixed-logic systems with legacy TTL components |
| Wide 2–6 V operation | Supports direct interface with 3.3 V microcontrollers and 5 V peripherals without level shifters |
| –55℃ to 125℃ operation | Validated performance over full military-grade temperature range - no derating required |
Applications
| Industrial PLC Backplane Interface | Aerospace Avionics Data Bus |
|---|---|
Use Scenario: Interfacing FPGA I/O banks to legacy 5 V parallel control buses in programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting octal buffer providing level translation, bus isolation, and drive strength enhancement. Use Value: Eliminates external pull-ups and discrete transistors while maintaining <10 ns timing margin at 50 MHz bus clock. | Use Scenario: Isolating sensor acquisition modules from central flight computer via shared 8-bit parallel data bus. IC Role / Device Role / Timing Role: Three-state line driver enabling time-multiplexed access to shared memory-mapped registers. Use Value: Dual OE inputs allow synchronized bus arbitration between multiple subsystems under DO-254 compliance. |
| Automotive Engine Control Unit | Test Equipment Digital I/O Module |
Use Scenario: Buffering diagnostic scan tool communication lines to ECU microcontroller GPIOs in harsh under-hood environments. IC Role / Device Role / Timing Role: High-temperature-tolerant interface IC managing bidirectional J1939-compatible control signals. Use Value: Guaranteed operation at 125℃ ambient enables direct placement near power stages without heatsinking. | Use Scenario: Expanding digital I/O count on automated test equipment mainframe using modular daughter cards. IC Role / Device Role / Timing Role: Octal three-state driver supporting hot-plug detection and dynamic bus reconfiguration. Use Value: Low 10 pF input capacitance and 20 pF three-state output capacitance minimize signal distortion at 25 MHz toggle rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal three-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC541N | Same HC logic, identical pinout, but PDIP-20 package (25.4 mm × 6.35 mm) and wider body | Preferred where through-hole assembly or manual prototyping is required | Select SN74HC541N for breadboard evaluation or legacy PCBs with DIP footprints |
| CD74HCT541M96G4 | HCT variant: 4.5–5.5 V only, TTL-compatible inputs (VIH = 2 V min, VIL = 0.8 V max) | Required when interfacing directly with 5 V TTL logic families without level shifting | Choose CD74HCT541M96G4 only when strict LSTTL input thresholds are mandated by upstream drivers |
Compared with SN74HC541N and CD74HCT541M96G4, the CD74HC541M96G4 offers broader supply flexibility (2–6 V), superior noise immunity, and surface-mount SOIC packaging optimized for automated production - making it ideal for space-constrained, wide-voltage embedded systems.
Availability
CD74HC541M96G4 is available at Aetrix Electronics and suitable for industrial PLC backplanes, aerospace avionics buses, automotive engine control units, test equipment I/O expansion, and high-reliability embedded computing requiring stable component supply across extended temperature ranges.
Supply support for CD74HC541M96G4 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 logic, power management, and signal chain technologies.
The CD74HC541M96G4 belongs to TI's CD74HC logic family - engineered for robust, low-power, wide-temperature digital interfacing in mission-critical industrial, defense, and transportation systems.
FAQ
What is the maximum operating voltage for CD74HC541M96G4?
The CD74HC541M96G4 supports a supply voltage range of 2 V to 6 V, with absolute maximum rating of 7 V. Operation above 6 V violates recommended conditions and risks parametric degradation or permanent damage. At 6 V, it delivers full drive strength and meets all AC/DC specifications across –55℃ to 125℃.
Does CD74HC541M96G4 require external pull-up resistors on its inputs?
No, CD74HC541M96G4 does not require external pull-up resistors on its inputs. Its CMOS inputs have negligible leakage (±1 μA max), and unused inputs must be actively tied to VCC or GND per TI layout guidelines - floating inputs cause undefined states and increased power consumption. Internal pull-ups are not present.
How does the dual output-enable feature of CD74HC541M96G4 improve system reliability?
The dual OE inputs (OE1 and OE2) in CD74HC541M96G4 provide redundant bus control: either signal HIGH places all outputs in high-impedance state. This allows fault-tolerant arbitration schemes - for example, one OE driven by processor GPIO and the other by watchdog timer - ensuring bus release during lockup or reset events.
Can CD74HC541M96G4 drive a 50 pF load with guaranteed timing?
Yes, CD74HC541M96G4 guarantees timing performance with 50 pF loads: at VCC = 5 V, tPLH/tPHL is 23 ns max (–55℃ to 125℃), and tPLZ/tPHZ is 48 ns max. These values are explicitly specified in Section 5.5 of the TI datasheet SCHS189E, confirming full functionality under heavy capacitive loading typical of routed PCB traces.
Is CD74HC541M96G4 pin-compatible with CD74HCT541M96G4?
Yes, CD74HC541M96G4 is pin-compatible with CD74HCT541M96G4 - both use identical SOIC-20 (DW) packages and share identical pin functions, numbering, and mechanical footprint. However, they differ electrically: HC supports 2–6 V operation and CMOS input thresholds, while HCT is limited to 4.5–5.5 V with TTL-compatible inputs.
CD74HC541M96G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CD74HC541M96G4 FAQ
1.How can I place an order for CD74HC541M96G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74HC541M96G4 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 CD74HC541M96G4 reliable?
The price and inventory of CD74HC541M96G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74HC541M96G4 is usually 5 days.
3.What payment methods are accepted for CD74HC541M96G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74HC541M96G4 transactions.
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4.How is shipping managed for CD74HC541M96G4?
CD74HC541M96G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74HC541M96G4 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 CD74HC541M96G4?
For technical support, including CD74HC541M96G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74HC541M96G4 requirements.
6.How does Aetrix verify that CD74HC541M96G4 is sourced from the original manufacturer or authorized distributors?
All CD74HC541M96G4 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 CD74HC541M96G4 meets industry standards.
7.What is the process for return or replacement of CD74HC541M96G4?
All CD74HC541M96G4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74HC541M96G4, 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 CD74HC541M96G4 part is unused and in its original packaging.
Return procedure for CD74HC541M96G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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