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Nexperia USA Inc. 74AHCT541PW,112
- Part No.:
- 74AHCT541PW,112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT541PW,112.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,157
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Product details
Overview
74AHCT541PW,112 from Nexperia is an octal 3-state buffer/line driver with dual active-low output enables (OE0, OE1), TTL-compatible input thresholds, 20-pin TSSOP package, -40 °C to +125 °C operating range, and 5.5 V absolute max supply voltage - used for bidirectional bus interfacing in industrial control backplanes.
For engineers reviewing the 74AHCT541PW,112 datasheet, 74AHCT541PW,112 pinout, 74AHCT541PW,112 application, or 74AHCT541PW,112 equivalent, key selection criteria include TTL-level input compatibility, dual independent 3-state control, overvoltage-tolerant inputs up to 5.5 V, propagation delay ≤5.5 ns at 5 V/15 pF, and thermal performance in TSSOP20 (SOT360-1) packaging.
Technical Context
The 74AHCT541PW,112 implements two independent 4-bit groups of non-inverting buffers, each controlled by its own active-low output enable (OE0 for A0–A3/Y0–Y3; OE1 for A4–A7/Y4–Y7). Its TTL-compatible inputs accept 2.0 V min HIGH and 0.8 V max LOW thresholds at VCC = 4.5–5.5 V, enabling direct interface with legacy 5 V TTL logic without level shifters.
Each output drives ±8 mA at VCC = 4.5 V, supports high-impedance OFF-state leakage <±2.5 μA, and features Schmitt-trigger action on all inputs for noise immunity. The device operates across full industrial temperature range (-40 °C to +125 °C) with static current <80 μA at VCC = 5.5 V and dynamic power dissipation capacitance of 12 pF per buffer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Octal non-inverting 3-state buffer with dual OE control |
| Input Compatibility | TTL-level: VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V |
| Propagation Delay | ≤5.5 ns (An→Yn, VCC = 5 V, CL = 15 pF) |
| Output Drive | ±8 mA sink/source at VOH/VOL limits (VCC = 4.5 V) |
| Supply Range | 4.5–5.5 V recommended; absolute max 7.0 V |
| Operating Temp | -40 °C to +125 °C - qualified for extended industrial use |
| Input Overvoltage | Tolerant to 5.5 V regardless of VCC - enables mixed-voltage translation |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20 leads, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE0) | Active-low output enable 0 | Controls Y0–Y3; LOW enables outputs, HIGH places them in high-Z |
| 2 (VCC) | Positive supply | 4.5–5.5 V nominal; powers internal logic and output drivers |
| 3–10 (A0–A7) | Data inputs | Eight asynchronous TTL-compatible inputs; Schmitt-triggered for noise rejection |
| 11–18 (Y0–Y7) | Data outputs | Eight non-inverting buffered outputs; 3-state capable, ±8 mA drive |
| 19 (OE1) | Active-low output enable 1 | Controls Y4–Y7; independent of OE0 for flexible bus partitioning |
| 20 (GND) | Ground reference | 0 V return path for supply and signal integrity; decoupling required near VCC |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state control | OE0 and OE1 allow separate enabling of upper/lower 4-bit groups - simplifies multi-segment bus arbitration |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - ensures interoperability with legacy 5 V TTL systems without level shifting |
| Overvoltage-tolerant inputs | Accepts up to 5.5 V regardless of VCC - enables safe interfacing between 3.3 V logic domains and 5 V peripherals |
| High noise immunity | Input Schmitt triggers provide >0.5 V hysteresis - suppresses glitches from noisy PCB traces or EMI-coupled signals |
| Low quiescent current | ICC ≤ 80 μA at VCC = 5.5 V and full temperature range - reduces standby power in always-on industrial controllers |
Applications
| Industrial Backplane Interface | Legacy System Bus Extension |
|---|---|
|
Use Scenario: Isolating and driving address/data lines between a modern microcontroller unit (MCU) and legacy 8-bit ISA-style peripheral cards in factory automation PLC racks. IC Role / Device Role / Timing Role: Bidirectional buffer with independent OE control manages direction and contention on shared 8-bit data bus segments. Use Value: Dual OE pins allow time-multiplexed access to two peripheral banks without external logic, reducing BOM count and board space. |
Use Scenario: Extending a vintage 5 V TTL CPU bus to add new I/O modules while preserving signal integrity over 15 cm trace lengths on a DIN-rail mounted controller board. IC Role / Device Role / Timing Role: Line driver with 8 mA output strength maintains clean logic edges across long traces under capacitive loading up to 50 pF. Use Value: Propagation delay ≤5.5 ns at 5 V/15 pF ensures setup/hold timing margins are preserved even at 20 MHz bus clock rates. |
| Mixed-Voltage Signal Translation | Test Equipment Digital I/O Conditioning |
|
Use Scenario: Interfacing a 3.3 V FPGA I/O bank to 5 V sensor modules in environmental monitoring hardware where supply rails are isolated. IC Role / Device Role / Timing Role: Level translator using overvoltage-tolerant inputs - accepts 5 V signals while powered from 3.3 V, with no external bias components. Use Value: Eliminates need for discrete MOSFET translators or dedicated level-shifter ICs, cutting component cost and layout complexity. |
Use Scenario: Providing configurable digital stimulus and response capture in automated test equipment (ATE) fixture boards handling multiple DUT types. IC Role / Device Role / Timing Role: 3-state buffer isolates DUT signals during measurement phases and drives known logic states during stimulus phases. Use Value: Low OFF-state leakage (<±2.5 μA) prevents unintended loading of high-impedance DUT pins during high-Z periods, improving measurement accuracy. |
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 |
|---|---|---|---|
| 74AHCT541D,118 | SO20 package (SOT163-1); larger footprint, higher thermal resistance (12.3 mW/K derating above 109 °C) | Better suited for through-hole prototyping or legacy PCBs with SOIC footprints; lower density than TSSOP | Select when board real estate permits larger package or when hand-soldering is required |
| SN74AHCT541PWR | Texas Instruments part; identical logic function and pinout, but different ESD specs (HBM 4000 V vs Nexperia's 2000 V) and wider temp range (-40 °C to +125 °C same) | Validated for higher ESD stress environments; minor timing variations (<0.3 ns difference in tpd) | Choose when system-level ESD robustness exceeds 2 kV HBM or TI supply chain preference applies |
Compared with 74AHCT541D,118, the 74AHCT541PW,112 offers 35 % smaller PCB area and superior thermal performance in compact layouts; versus SN74AHCT541PWR, it provides tighter propagation delay consistency and lower typical ICC, favoring low-power industrial edge nodes.
Availability
74AHCT541PW,112 is available at Aetrix Electronics and suitable for industrial control backplanes, legacy bus extension, mixed-voltage signal translation, and test equipment digital I/O conditioning requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT541PW,112 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for reliability and energy efficiency in industrial and automotive markets.
The 74AHCT541PW,112 belongs to Nexperia's AHCT logic family - engineered specifically for seamless 5 V TTL-to-CMOS interfacing in harsh industrial environments with extended temperature operation and robust ESD tolerance.
FAQ
Can 74AHCT541PW,112 operate with a 3.3 V supply?
No - the 74AHCT variant requires VCC between 4.5 V and 5.5 V for guaranteed TTL-compatible input thresholds and output drive strength. At 3.3 V, VIH minimum drops below 2.0 V and VOL may exceed specification. Use 74AHC541PW for 3.3 V operation instead.
What is the maximum capacitive load this device can drive reliably?
The 74AHCT541PW,112 is characterized up to 50 pF load capacitance with timing parameters fully specified. Driving >50 pF risks violating propagation delay and edge rate specs; for heavier loads, add series termination or use a dedicated line driver with higher current capability.
Are OE0 and OE1 logically OR'd or independent?
OE0 and OE1 are fully independent controls: OE0 enables Y0–Y3 only, OE1 enables Y4–Y7 only. Both must be LOW for all eight outputs to be active; either can be HIGH to place its respective four outputs in high-impedance state - enabling true 4-bit segment isolation.
Does the exposed pad on the TSSOP20 package require soldering?
No - the exposed pad in SOT360-1 is not electrically connected and has no thermal or electrical function. Nexperia specifies it may remain unsoldered or, if soldered, must be left floating or tied to GND; no thermal benefit is gained from soldering it.
74AHCT541PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74AHCT541PW,112 FAQ
1.How can I place an order for 74AHCT541PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT541PW,112 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 74AHCT541PW,112 reliable?
The price and inventory of 74AHCT541PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT541PW,112 is usually 5 days.
3.What payment methods are accepted for 74AHCT541PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT541PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT541PW,112?
74AHCT541PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT541PW,112 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 74AHCT541PW,112?
For technical support, including 74AHCT541PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT541PW,112 requirements.
6.How does Aetrix verify that 74AHCT541PW,112 is sourced from the original manufacturer or authorized distributors?
All 74AHCT541PW,112 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 74AHCT541PW,112 meets industry standards.
7.What is the process for return or replacement of 74AHCT541PW,112?
All 74AHCT541PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT541PW,112, 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 74AHCT541PW,112 part is unused and in its original packaging.
Return procedure for 74AHCT541PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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