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Texas Instruments CD74ACT541SM96
- Part No.:
- CD74ACT541SM96
- Manufacturer:
- Texas Instruments
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CD74ACT541SM96.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,695
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Product details
Overview
CD74ACT541SM96 from Texas Instruments is a non-inverting octal 3-state buffer/line driver in SSOP-20 package, operating at 4.5–5.5 V supply with ±24 mA output drive, balanced propagation delays (tPLH/tPHL ≤ 7.5 ns @ 5 V), and TTL-compatible inputs. It serves as a high-drive bus interface in industrial control backplanes and legacy data acquisition systems requiring robust noise immunity and hot-swap-safe output disable.
For engineers reviewing the CD74ACT541SM96 datasheet, CD74ACT541SM96 pinout, CD74ACT541SM96 application, or CD74ACT541SM96 equivalent, key selection criteria include its ACT-series 5V logic compatibility, dual active-low output enables (OE1/OE2), 50-Ω transmission-line drive capability, and −55°C to +125°C extended temperature operation - critical for aerospace avionics and ruggedized instrumentation designs.
Technical Context
The CD74ACT541SM96 implements an advanced CMOS process with SCR-latchup resistance and TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max). Its dual active-low output enables allow independent control of two 4-bit groups, supporting partial bus isolation without full device disable.
It delivers balanced AC/DC performance: VOH ≥ 3.7 V @ −24 mA (VCC = 4.5 V), VOL ≤ 0.5 V @ +24 mA, and guaranteed switching at 5 V across −55°C to +125°C. The 60 pF typical power dissipation capacitance supports low dynamic power in high-frequency address/data buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ACT (Advanced CMOS TTL-compatible) - ensures direct replacement for 74LS/74F with lower power and higher noise margin |
| Supply Voltage | 4.5 V to 5.5 V - compatible with regulated 5 V systems; excludes 3.3 V or mixed-voltage operation |
| Output Drive | ±24 mA per output - sufficient to fan out to 15 FAST® ICs or directly drive 50 Ω PCB traces without external termination |
| Propagation Delay | ≤ 7.5 ns (tPHL), ≤ 8.2 ns (tPLH) @ VCC = 5 V, TA = −40°C to +85°C - enables reliable operation in 100+ MHz bus timing windows |
| Operating Temperature | −55°C to +125°C - qualified for military-grade and extended industrial environments including engine control units |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - matches TTL logic levels, enabling seamless interfacing with legacy microcontrollers and FPGAs |
| ESD Rating | ±2000 V HBM - meets standard handling requirements for automated assembly without special ESD controls |
Pinout & Package
CD74ACT541SM96 is housed in a 20-pin SSOP (Shrink Small Outline Package) with body size 7.2 mm × 5.3 mm and overall footprint 7.2 mm × 7.8 mm. The package is RoHS-compliant, lead-finished with NiPdAu, and rated MSL Level-1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output enable inputs - both must be LOW to enable outputs; independent control allows segmented bus gating |
| 2–9, 12–18 | D0–D7 | Non-inverting data inputs - routed directly to corresponding Q outputs when OE1/OE2 are asserted |
| 3, 5, 6, 9, 12, 15, 16, 19 | Q0–Q7 | Buffered non-inverting outputs - enter high-impedance state when either OE1 or OE2 is HIGH |
| 10 | GND | Ground reference - must be connected to system ground plane for stable noise immunity and thermal performance |
| 20 | VCC | Positive supply - requires local 0.1 µF ceramic bypass capacitor placed within 5 mm of pin for clean switching transients |
Key Features
| Feature | Design Value |
|---|---|
| SCR-latchup-resistant process | Prevents destructive latch-up under transient overvoltage or ESD events in harsh industrial environments |
| Balanced propagation delays | Ensures <1 ns skew between parallel outputs - critical for synchronous bus timing integrity in data acquisition systems |
| 50 Ω transmission-line drive | Validated at +85°C and +125°C - eliminates need for external series termination resistors on controlled-impedance PCB traces |
| TTL-compatible input thresholds | VIH = 2.0 V min / VIL = 0.8 V max - guarantees interoperability with legacy 74LS, 74F, and microcontroller GPIO without level shifters |
| Two independent output enables | Supports selective activation of Q0–Q3 and Q4–Q7 groups - enables flexible memory-mapped I/O partitioning in embedded controllers |
Applications
| Industrial PLC Backplane Interface | Aerospace Avionics Data Bus |
|---|---|
|
Use Scenario: Isolating and driving 8-bit parallel address/data lines between CPU module and I/O expansion cards in modular programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing bidirectional signal conditioning, slew-rate control, and hot-swap-safe output disable during card insertion/removal. Use Value: ±24 mA drive ensures signal integrity across 15 cm backplane traces; dual OE pins allow staggered enable sequencing to prevent bus contention during reconfiguration. |
Use Scenario: Interfacing radiation-tolerant FPGA I/O banks to legacy MIL-STD-1553B remote terminal peripheral buses in flight control computers. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer for FPGA outputs, operating across −55°C to +125°C with guaranteed timing margins at 5 V. Use Value: Extended temperature qualification and 2000 V HBM ESD rating meet DO-160 Section 22 airborne equipment surge requirements without additional protection circuitry. |
| Ruggedized Test Equipment I/O | Legacy Medical Imaging Subsystem |
|
Use Scenario: Driving analog multiplexer control lines and ADC/DAC strobes in portable battery-powered diagnostic instruments exposed to EMI-rich hospital environments. IC Role / Device Role / Timing Role: Noise-immune digital buffer isolating sensitive analog sections from noisy digital control logic using 3-state output disable during conversion cycles. Use Value: Balanced noise immunity (30% of VCC) and low VOL (≤0.5 V @ +24 mA) ensure clean logic transitions despite shared ground paths and switching regulator ripple. |
Use Scenario: Buffering parallel video pixel data and timing signals between aging custom ASICs and modern display controllers in MRI/PET scanner subsystems. IC Role / Device Role / Timing Role: Pin-compatible upgrade path for obsolete 74F541, preserving PCB layout while improving power efficiency and thermal margin. Use Value: ACT-series speed/power trade-off (vs. AC) delivers 7.5 ns delay with <160 µA ICC - reduces heat generation in sealed, convection-cooled enclosures. |
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 |
|---|---|---|---|
| CD74ACT541M96 | Same ACT logic family and electrical specs, but in SOIC-20 (DW) package (12.8 mm × 10.3 mm body) | Larger footprint and higher thermal resistance (RθJA = 101.2°C/W vs. DB's 101.2°C/W - identical value per TI doc, but DB has better board-level convection due to thinner profile) | Select CD74ACT541M96 only if SOIC-20 is required for legacy board compatibility or hand-soldering preference. |
| SN74ACT541DBR | Identical functionality and pinout; manufactured by TI with same ACT specs but different part marking and tape/reel packaging (2000 pcs vs. CD74ACT541SM96's 2000 pcs) | No functional difference - SN74ACT541DBR uses same DB package and operates identically across −55°C to +125°C | CD74ACT541SM96 and SN74ACT541DBR are functionally interchangeable; choose based on distributor stock and traceability requirements. |
Compared with CD74ACT541M96 and SN74ACT541DBR, the CD74ACT541SM96 offers identical electrical performance and temperature range in the space-optimized SSOP-20 package, making it optimal for high-density industrial modules where board area is constrained but thermal management remains adequate via copper pour.
Availability
CD74ACT541SM96 is available at Aetrix Electronics and suitable for industrial automation backplanes, aerospace avionics interfaces, and ruggedized test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CD74ACT541SM96 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 over 50 years of innovation in high-reliability logic families.
The CD74ACT541SM96 belongs to TI's Advanced CMOS (ACT) logic portfolio, designed specifically for demanding industrial, military, and aerospace applications where TTL compatibility, wide temperature operation, and latch-up immunity are mandatory.
FAQ
What is the maximum operating voltage for CD74ACT541SM96?
The CD74ACT541SM96 has an absolute maximum supply voltage of 6 V, but its recommended operating range is strictly 4.5 V to 5.5 V per TI's datasheet Section 4.3. Operation outside this window may cause undefined logic behavior or accelerated parametric drift, especially at temperature extremes. The CD74ACT541SM96 is not rated for 3.3 V or mixed-voltage use.
Does CD74ACT541SM96 support hot-swap insertion into a live backplane?
Yes - the CD74ACT541SM96 features three-state outputs with dual active-low enables (OE1/OE2), allowing all outputs to be placed in high-impedance state before power-up. Combined with SCR-latchup-resistant CMOS process and ±2000 V HBM ESD rating, the CD74ACT541SM96 is suitable for hot-swap applications when proper power sequencing (VCC before OE assertion) is followed per TI Application Report SCBA011.
Can CD74ACT541SM96 drive 50 Ω transmission lines at +125°C?
Yes - TI's datasheet Section 4.5 explicitly validates 50 Ω transmission-line drive capability for the CD74ACT541SM96 at +85°C and 75 Ω at +125°C. This is confirmed in the VOH/VOL test conditions (footnote 2), meaning the CD74ACT541SM96 maintains sufficient drive strength to meet rise/fall time and overshoot specifications on controlled-impedance traces even at maximum operating temperature.
What is the pinout compatibility between CD74ACT541SM96 and CD74AC541SM96?
The CD74ACT541SM96 and CD74AC541SM96 share identical pinout, package (SSOP-20), and function mapping per TI's SCHS285B datasheet Figures 3-1 and 3-2. However, they differ in supply range (AC: 1.5–5.5 V; ACT: 4.5–5.5 V) and input thresholds - the CD74ACT541SM96 requires TTL-level inputs and cannot operate reliably below 4.5 V, unlike the AC variant.
Is CD74ACT541SM96 RoHS compliant and lead-free?
Yes - the CD74ACT541SM96 is RoHS-compliant (per Package Option Addendum) with NiPdAu lead finish and no lead content. Its MSL Level-1 rating confirms unlimited floor life under JEDEC J-STD-020, and the "Yes" RoHS flag in TI's official orderable information confirms full compliance with Directive 2011/65/EU and subsequent amendments. The CD74ACT541SM96 is suitable for lead-free reflow processes up to 260°C peak.
CD74ACT541SM96 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 20-SSOP (0.209", 5.30mm 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
CD74ACT541SM96 FAQ
1.How can I place an order for CD74ACT541SM96 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74ACT541SM96 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 CD74ACT541SM96 reliable?
The price and inventory of CD74ACT541SM96 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74ACT541SM96 is usually 5 days.
3.What payment methods are accepted for CD74ACT541SM96?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74ACT541SM96 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74ACT541SM96?
CD74ACT541SM96 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74ACT541SM96 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 CD74ACT541SM96?
For technical support, including CD74ACT541SM96 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74ACT541SM96 requirements.
6.How does Aetrix verify that CD74ACT541SM96 is sourced from the original manufacturer or authorized distributors?
All CD74ACT541SM96 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 CD74ACT541SM96 meets industry standards.
7.What is the process for return or replacement of CD74ACT541SM96?
All CD74ACT541SM96 units undergo pre-shipment inspection (PSI). If there is an issue with CD74ACT541SM96, 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 CD74ACT541SM96 part is unused and in its original packaging.
Return procedure for CD74ACT541SM96:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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