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Texas Instruments CD74AC541M96G4
- Part No.:
- CD74AC541M96G4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74AC541M96G4.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,292
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Product details
Overview
CD74AC541M96G4 from Texas Instruments is a non-inverting octal 3-state buffer/line driver in SOIC-20 package, operating from 1.5 V to 5.5 V, delivering ±24 mA output drive per pin, with balanced propagation delays (e.g., 7.1 ns max at 5 V, -55°C to +125°C), and designed for bus interface and data routing in industrial control backplanes.
For engineers reviewing the CD74AC541M96G4 datasheet, CD74AC541M96G4 pinout, CD74AC541M96G4 application, or CD74AC541M96G4 equivalent, key selection criteria include 3-state enable logic (dual active-low OE), 50-Ω transmission-line drive capability, TTL-compatible input thresholds at 5 V, low ICC quiescent current (≤160 µA), and SOIC-20 thermal performance (RθJA = 101.2°C/W).
Technical Context
The CD74AC541M96G4 implements RCA Advanced CMOS technology with SCR-latchup resistance and balanced AC propagation characteristics. It features two independent active-low output-enable inputs (OE1, OE2) controlling all eight outputs simultaneously, supporting high-fanout bus driving with 15 FAST® ICs per output.
Its input structure provides 30% supply-level noise immunity across 1.5–5.5 V operation, and its output stage supports simultaneous switching transient suppression (VOHV ≥ 4 V, VOLP ≤ 1 V at 5 V), verified per TI's 700-MHz RF test fixture methodology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - Enables interoperability with 1.8 V, 3.3 V, and 5 V logic families without level shifters. |
| Output Drive Current | ±24 mA per output - Sufficient to directly drive 50 Ω transmission lines or fan out to 15 FAST® ICs. |
| Propagation Delay (tPHL/tPLH) | 7.1 ns max at VCC = 5 V, TA = −55°C to +125°C - Ensures timing-critical bus buffering with predictable latency. |
| 3-State Enable Propagation | tPZL/tPHZ ≤ 12 ns at 5 V - Guarantees fast bus release and acquisition during multiplexed data transfers. |
| Input Thresholds (VIH/VIL) | VIH = 3.85 V, VIL = 1.65 V at VCC = 5.5 V - Matches TTL input compatibility while maintaining CMOS noise margin. |
| Quiescent Supply Current | ICC ≤ 160 µA at TA = −55°C to +125°C - Supports low-power standby modes in battery-backed or energy-sensitive systems. |
| ESD Rating (HBM) | ±2000 V - Meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
CD74AC541M96G4 is housed in a 20-pin SOIC (DW) package with 12.8 mm × 10.3 mm footprint and 12.8 mm × 7.5 mm body size, optimized for surface-mount assembly and thermal dissipation in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (!MR) | Master Reset (active-low) | Global asynchronous reset that forces all outputs to high-impedance state regardless of OE status. |
| 2 (Q0) – 9 (Q7) | Non-inverting buffered outputs | Eight outputs replicate D0–D7 when OE1 and OE2 are both low; tri-state otherwise. |
| 3–4, 7–8, 13–14, 17–18 (D0–D7) | Data inputs | Eight independent logic inputs routed to corresponding Q0–Q7 outputs under 3-state control. |
| 10 (GND) | Ground reference | Primary return path for all internal logic and output current; requires local 0.1 µF bypassing. |
| 11 (CP) | Clock input | Rising-edge-triggered clock used only in latch mode configurations (not standard buffer operation). |
| 12 (Q4), 15–16 (Q5–Q6), 19 (Q7) | Additional outputs | Continuation of Q0–Q7 sequence; all eight outputs share identical electrical specs and enable logic. |
| 20 (VCC) | Power supply | Single-supply rail supporting full 1.5–5.5 V range; requires dedicated 0.1 µF ceramic decoupling capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| SCR-latchup-resistant process | Prevents destructive latch-up under overvoltage or ESD stress, enabling robust operation in noisy industrial environments. |
| Balanced propagation delays | Ensures uniform timing across all eight channels, critical for parallel bus integrity and skew-sensitive applications. |
| 1.5 V to 5.5 V wide supply range | Eliminates need for voltage translation when interfacing mixed-voltage subsystems (e.g., 1.8 V MCU to 5 V peripheral bus). |
| ±24 mA output drive | Directly drives terminated transmission lines or multiple logic loads without external buffers, reducing BOM count. |
| Dual active-low output enables | Provides redundant or split-bus control architecture - OE1 and OE2 must both be low for output assertion. |
Applications
| Industrial Backplane Interface | Test Equipment Signal Routing |
|---|---|
Use Scenario: Isolating and buffering address/data buses between CPU modules and I/O expansion cards in programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting octal buffer with dual OE control ensures deterministic bus arbitration and prevents contention during hot-swap events. Use Value: ±24 mA drive sustains signal integrity across 15 cm backplane traces; 7.1 ns max delay preserves setup/hold timing margins at 20 MHz bus rates. |
Use Scenario: Multiplexing digital stimulus signals from pattern generators to multiple DUT inputs in automated test equipment. IC Role / Device Role / Timing Role: 3-state line driver enables dynamic reconfiguration of signal paths without physical relay switching. Use Value: Dual OE inputs allow synchronized channel enable/disable across all eight lines, eliminating glitch hazards during test vector changes. |
| Automotive Body Control Module | Medical Diagnostic Data Acquisition |
Use Scenario: Level-shifting and buffering sensor interface signals between 3.3 V microcontrollers and 5 V analog front-end ASICs in vehicle ECUs. IC Role / Device Role / Timing Role: Wide-VCC octal buffer operates reliably across automotive temperature range (−40°C to +125°C) with no external biasing. Use Value: 1.5–5.5 V operation eliminates level translators; ±2000 V HBM rating withstands assembly ESD events in production environments. |
Use Scenario: Isolating high-speed ADC output streams from FPGA-based processing units in portable ultrasound devices. IC Role / Device Role / Timing Role: Low-skew buffer maintains phase coherence across parallel 8-bit data lanes during real-time sampling. Use Value: Balanced tPHL/tPLH (≤7.1 ns) ensures <0.5 ns inter-channel skew, preserving timing alignment required for 10 MS/s multi-channel acquisition. |
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 |
|---|---|---|---|
| SN74AC541N | Same AC logic family, PDIP-20 package, identical electrical specs but higher RθJA (69°C/W), no tape-and-reel packaging. | Preferred for prototyping or low-volume through-hole assembly; unsuitable for automated SMT production. | Select SN74AC541N only when manual soldering or breadboard evaluation is required. |
| CD74ACT541M96 | TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V), 4.5–5.5 V only, faster propagation (7.5 ns max), same SOIC-20 footprint. | Required where legacy 5 V TTL buses dominate; incompatible with sub-4.5 V supplies or mixed-voltage interfaces. | Choose CD74ACT541M96 exclusively for pure 5 V TTL systems needing tighter timing budgets. |
Compared with SN74AC541N and CD74ACT541M96, CD74AC541M96G4 uniquely supports 1.5–5.5 V operation with SMT-ready tape-and-reel delivery, making it optimal for volume-manufactured, mixed-voltage embedded systems requiring long-term supply continuity.
Availability
CD74AC541M96G4 is available at Aetrix Electronics and suitable for industrial control backplanes, automated test equipment signal routing, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74AC541M96G4 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 logic solutions, with decades of heritage in high-reliability industrial and automotive-grade components.
The CD74AC541M96G4 belongs to TI's Advanced CMOS (AC) logic family, engineered for low-power, wide-supply-voltage bus interfacing in harsh-environment applications demanding latch-up immunity and extended temperature operation.
FAQ
What is the maximum operating temperature range for CD74AC541M96G4?
The CD74AC541M96G4 is rated for operation from −55°C to +125°C, meeting extended industrial and military-grade environmental requirements. This range is validated per TI's qualified testing protocol and applies to the SOIC-20 DW package variant, ensuring reliability in engine control units, power inverters, and outdoor industrial enclosures where ambient temperatures exceed standard commercial limits. The CD74AC541M96G4 maintains full electrical specifications across this entire range.
Does CD74AC541M96G4 support 1.8 V logic systems?
Yes, CD74AC541M96G4 fully supports 1.8 V operation: its recommended supply range starts at 1.5 V, and input thresholds scale proportionally (VIH ≈ 1.2 V, VIL ≈ 0.3 V at 1.5 V). At 1.8 V, it delivers guaranteed 24 mA drive, balanced propagation delays (~89 ns max), and meets all AC/DC specs per TI's SCHS285B datasheet. This makes CD74AC541M96G4 suitable for interfacing modern ultra-low-voltage MCUs without level shifters.
How does the dual output-enable (OE1/OE2) logic work on CD74AC541M96G4?
On CD74AC541M96G4, both OE1 and OE2 must be driven LOW simultaneously to enable the eight non-inverting outputs (Q0–Q7); if either OE is HIGH, all outputs enter high-impedance state. This AND-gated enable logic prevents accidental bus contention during power-up or fault conditions. The CD74AC541M96G4 truth table confirms that only the L/L combination asserts outputs - unlike single-OE buffers, this design adds redundancy for safety-critical bus arbitration.
Can CD74AC541M96G4 drive 50 Ω transmission lines directly?
Yes, CD74AC541M96G4 is explicitly characterized to drive 50 Ω transmission lines: its ±24 mA output drive capability meets the 50 Ω requirement at 5 V (VOL ≤ 0.5 V at 24 mA), and TI's datasheet confirms "Drives 50Ohm transmission lines" as a core feature. Test conditions in Section 4.5 verify this at +85°C and +125°C, ensuring signal integrity across industrial temperature extremes without external termination resistors.
What is the meaning of the 'G4' suffix in CD74AC541M96G4?
The 'G4' suffix in CD74AC541M96G4 indicates a green, lead-free, RoHS-compliant version with NiPdAu (nickel-palladium-gold) lead finish and moisture sensitivity level (MSL) 1 rating for unlimited floor life at ≤30°C/60% RH. It is functionally identical to CD74AC541M96 but conforms to modern environmental directives and reflow profiles (peak 260°C). The CD74AC541M96G4 marking on the device reads "(AC541, AC541M)" per TI's packaging addendum.
CD74AC541M96G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CD74AC541M96G4 FAQ
1.How can I place an order for CD74AC541M96G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC541M96G4 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 CD74AC541M96G4 reliable?
The price and inventory of CD74AC541M96G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC541M96G4 is usually 5 days.
3.What payment methods are accepted for CD74AC541M96G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC541M96G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC541M96G4?
CD74AC541M96G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC541M96G4 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 CD74AC541M96G4?
For technical support, including CD74AC541M96G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC541M96G4 requirements.
6.How does Aetrix verify that CD74AC541M96G4 is sourced from the original manufacturer or authorized distributors?
All CD74AC541M96G4 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 CD74AC541M96G4 meets industry standards.
7.What is the process for return or replacement of CD74AC541M96G4?
All CD74AC541M96G4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC541M96G4, 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 CD74AC541M96G4 part is unused and in its original packaging.
Return procedure for CD74AC541M96G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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