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Texas Instruments CD74AC541M96
- Part No.:
- CD74AC541M96
- Manufacturer:
- Texas Instruments
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CD74AC541M96.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,187
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Product details
Overview
CD74AC541M96 from Texas Instruments is a non-inverting octal buffer/line driver with 3-state outputs, two active-low output enables, ±24mA drive capability, 1.5V–5.5V supply operation, and balanced propagation delays. It serves as a bus interface or data routing device in industrial control backplanes and high-noise digital systems requiring robust signal integrity.
For engineers reviewing the CD74AC541M96 datasheet, CD74AC541M96 pinout, CD74AC541M96 application, or CD74AC541M96 equivalent, key selection criteria include its 3-state logic compatibility, 50Ω transmission-line drive support, wide VCC range, and −55°C to +125°C extended temperature rating for harsh-environment deployment.
Technical Context
The CD74AC541M96 implements RCA Advanced CMOS technology with SCR-latchup resistance. Its dual active-low output enable inputs (OE1, OE2) control all eight outputs simultaneously, placing them in high-impedance state when asserted - enabling bidirectional bus sharing without external direction control logic.
It features balanced AC-series timing: tPLH/tPHL ≤ 9.9 ns at 3.3V (−40°C to +85°C), tPZL/tPHZ ≤ 18 ns, and CPD = 60 pF typical. Input thresholds scale with VCC (VIH = 0.7×VCC min, VIL = 0.3×VCC max), ensuring noise immunity across the full 1.5V–5.5V operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Non-inverting octal buffer with 3-state outputs |
| Supply Voltage Range | 1.5V to 5.5V - supports mixed-voltage system interfacing (e.g., 3.3V logic driving 5V buses) |
| Output Drive | ±24mA per output - drives 15 FAST® ICs or 50Ω transmission lines directly |
| Propagation Delay | ≤9.9 ns (tPHL, 3.3V, −40°C to +85°C) - enables high-speed bus buffering up to ~50 MHz |
| Operating Temperature | −55°C to +125°C - qualified for extended industrial/military applications |
| Input Thresholds | VIH = 0.7×VCC min, VIL = 0.3×VCC max - provides 30% noise margin across supply range |
| ESD Rating | ±2000V HBM - withstands standard handling without special ESD precautions |
Pinout & Package
CD74AC541M96 is housed in a 20-pin SOIC (DW) package measuring 12.8mm × 10.3mm (body: 12.8mm × 7.5mm), RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (!MR) | Master reset input | Active-low global reset; forces all outputs low regardless of OE state |
| 2 (Q0)–9 (Q7) | Buffered outputs | Non-inverted data outputs; high-impedance when OE1 and OE2 both high |
| 3 (D0)–4 (D1), 7 (D2)–8 (D3), 13 (D4)–14 (D5), 17 (D6)–18 (D7) | Data inputs | Eight independent logic inputs; no internal pull-ups/pull-downs - must be terminated |
| 10 (GND) | Ground reference | Primary power return; requires local 0.1 µF bypass capacitor |
| 11 (CP) | Clock input | Rising-edge triggered; synchronizes output enable transitions (per truth table behavior) |
| 12 (Q4)–19 (Q7) | Additional outputs | Continuation of Q0–Q7 set; all eight outputs share identical electrical specs |
| 20 (VCC) | Power supply | Single-supply rail; supports 1.5V–5.5V; decoupling mandatory for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| SCR-latchup-resistant process | Prevents destructive latch-up under overvoltage or ESD stress in industrial environments |
| Balanced propagation delays | Minimizes skew between parallel data paths - critical for synchronous bus timing integrity |
| 1.5V–5.5V operation | Enables direct interfacing between 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters |
| ±24mA output drive | Sustains clean signal edges into 50Ω loads or fanout-heavy TTL/CMOS loads without external buffers |
| Two active-low output enables | Provides redundant enable control for fault-tolerant bus arbitration or dual-bus isolation schemes |
Applications
| Industrial Backplane Interface | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Buffering address/data signals between microcontroller and modular I/O cards in programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating CPU bus from peripheral expansion slots during hot-swap or configuration changes. Use Value: ±24mA drive ensures signal integrity across 30cm backplane traces; −55°C to +125°C rating supports uncooled cabinet operation. | Use Scenario: Driving multiple DUT (device-under-test) pins simultaneously from pattern generator outputs. IC Role / Device Role / Timing Role: Parallel signal fanout device enabling synchronized stimulus application across 8 test channels. Use Value: Balanced tPLH/tPHL ≤9.9ns minimizes channel-to-channel skew; 50Ω line drive eliminates external termination resistors. |
| Military Data Acquisition System | High-Reliability Sensor Hub |
Use Scenario: Interfacing radiation-hardened ADCs to FPGA-based processing units in avionics subsystems. IC Role / Device Role / Timing Role: Bus transceiver buffer with master reset for deterministic initialization after power-on or brownout recovery. Use Value: !MR pin forces known state on all outputs before firmware takes control; SCR-latchup resistance prevents single-event functional interrupts. | Use Scenario: Aggregating analog sensor outputs digitized by multiple SAR ADCs into a shared SPI/I²C hub controller. IC Role / Device Role / Timing Role: Level-shifting and bus-isolation buffer between heterogeneous sensor front-ends (1.8V/3.3V) and central 5V controller. Use Value: 1.5V–5.5V VCC range allows direct connection to diverse ADC supplies; 3-state outputs prevent bus contention during multi-sensor polling cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AC541N | Same AC logic family, identical pinout, but PDIP-20 package (not tape-and-reel); higher thermal resistance (RθJA = 69°C/W vs. 101.2°C/W) | Preferred for prototyping or low-volume through-hole assembly; lacks MSL-1 reflow compatibility | Select when manual soldering or breadboard validation is required prior to SOIC production use. |
| CD74ACT541M96 | TTL-compatible input thresholds (VIH = 2.0V min), 4.5V–5.5V only supply; faster propagation (≤7.5ns at 5V) but narrower voltage range | Optimized for legacy 5V-only systems with TTL-level drivers; not suitable for mixed-voltage or low-VCC operation | Choose only when interfacing exclusively with 5V TTL sources and maximum speed is prioritized over supply flexibility. |
Compared with SN74AC541N and CD74ACT541M96, CD74AC541M96 uniquely combines wide VCC range (1.5V–5.5V), industrial temperature grade, and SOIC tape-and-reel packaging - making it optimal for automated SMT production of multi-rail embedded systems requiring long-term supply stability.
Availability
CD74AC541M96 is available at Aetrix Electronics and suitable for industrial automation, avionics data acquisition, and automated test equipment requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.
Supply support for CD74AC541M96 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 for industrial, automotive, and communications markets.
The CD74AC541M96 belongs to TI's Advanced CMOS (AC) logic family, designed for high-speed, low-power bus interface applications where noise immunity, wide supply range, and latchup resilience are critical in harsh environments.
FAQ
What is the function of the !MR pin on CD74AC541M96?
The !MR (Master Reset) pin on CD74AC541M96 is an active-low input that forces all eight outputs to logic low, overriding the 3-state control from OE1/OE2. This provides deterministic initialization during power-up or fault recovery. In CD74AC541M96, !MR remains effective even when outputs are in high-impedance state, ensuring predictable system reset behavior without requiring external pull-downs or sequencing.
Does CD74AC541M96 support 1.8V logic levels?
Yes, CD74AC541M96 fully supports 1.8V operation: its recommended VCC range is 1.5V–5.5V, and input thresholds scale proportionally (VIH ≥ 1.26V, VIL ≤ 0.54V at VCC = 1.8V). The CD74AC541M96 maintains ±24mA drive and specified timing performance down to 1.5V, making it compatible with modern ultra-low-voltage microcontrollers and FPGAs.
Can CD74AC541M96 drive 50Ω transmission lines directly?
Yes, CD74AC541M96 is explicitly characterized to drive 50Ω transmission lines: its ±24mA output current meets the requirement for clean 50Ω line termination at 3.3V and 5V, and switching characteristics (tPLH/tPHL ≤9.9ns) ensure signal integrity up to ~50MHz. The CD74AC541M96 datasheet confirms this capability under load conditions at +85°C and +125°C.
What is the difference between CD74AC541M96 and CD74ACT541M96?
CD74AC541M96 uses AC-series CMOS thresholds (VIH = 0.7×VCC), operates from 1.5V–5.5V, and targets mixed-voltage systems. CD74ACT541M96 uses ACT-series TTL-compatible thresholds (VIH = 2.0V min), requires 4.5V–5.5V only, and delivers faster propagation (≤7.5ns at 5V). Both share pinout and 3-state architecture, but CD74AC541M96 offers broader supply flexibility while CD74ACT541M96 prioritizes speed in pure 5V environments.
Is CD74AC541M96 suitable for automotive applications?
CD74AC541M96 is not AEC-Q100 qualified and is rated for −55°C to +125°C industrial/military temperature range, not automotive Grade 1 (−40°C to +125°C) or Grade 2 (−40°C to +105°C) requirements. While its operating range overlaps, CD74AC541M96 lacks automotive-specific qualification testing (e.g., HTOL, ESD, vibration). For automotive use, TI recommends AEC-Q100 qualified alternatives such as SN74LVC541A-Q1 - not CD74AC541M96.
CD74AC541M96 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:
- Active
- 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
CD74AC541M96 FAQ
1.How can I place an order for CD74AC541M96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74AC541M96 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 CD74AC541M96 reliable?
The price and inventory of CD74AC541M96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74AC541M96 is usually 5 days.
3.What payment methods are accepted for CD74AC541M96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74AC541M96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74AC541M96?
CD74AC541M96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74AC541M96 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 CD74AC541M96?
For technical support, including CD74AC541M96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74AC541M96 requirements.
6.How does Aetrix verify that CD74AC541M96 is sourced from the original manufacturer or authorized distributors?
All CD74AC541M96 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 CD74AC541M96 meets industry standards.
7.What is the process for return or replacement of CD74AC541M96?
All CD74AC541M96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74AC541M96, 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 CD74AC541M96 part is unused and in its original packaging.
Return procedure for CD74AC541M96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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