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NXP Semiconductors 74ABT541PW,118
- Part No.:
- 74ABT541PW,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74ABT541PW,118.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,941
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Product details
Overview
74ABT541PW,118 from NXP Semiconductors (formerly Philips) is an octal 3-state buffer/line driver in TSSOP-20 package, operating from 4.5 V to 5.5 V, with 2.9 ns typical propagation delay (An→Yn), ±32 mA high-level and 64 mA low-level output drive, and designed for bus interface and fan-out extension in 5 V TTL-compatible systems.
For engineers reviewing the 74ABT541PW,118 datasheet, 74ABT541PW,118 pinout, 74ABT541PW,118 application, or 74ABT541PW,118 equivalent, key selection criteria include 3-state enable timing (tPZH/tPHZ ≤ 6.4 ns), input/output isolation (CIN = 4 pF, COUT = 7 pF), power-up 3-state behavior, and compatibility with legacy ABT-family bus architectures.
Technical Context
The 74ABT541PW,118 implements dual independent 3-state enables (OE0 and OE1) controlling eight non-inverting outputs (Y0–Y7) driven by corresponding inputs (A0–A7). Its BiCMOS process delivers high-speed switching while maintaining TTL-compatible logic thresholds (VIL = 0.8 V, VIH = 2.0 V) and robust DC drive capability.
It supports live insertion/extraction and meets JEDEC JC40.2 latch-up immunity (>500 mA) and MIL-STD-883 ESD protection (>2000 V HBM). The device operates across –40°C to +85°C and features power-off leakage current <100 µA at VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation in standard 5 V digital systems with ±10% rail tolerance. |
| Propagation Delay | 2.9 ns typ (An→Yn, CL = 50 pF) - Enables high-speed data transfer on parallel buses up to ~345 MHz effective toggle rate. |
| Output Drive | Sinks 64 mA / sources 32 mA - Drives multiple TTL loads or long PCB traces without external buffering. |
| Input Capacitance | 4 pF - Minimizes capacitive loading on upstream drivers, preserving signal edge integrity. |
| 3-State Leakage | ±50 µA max (IOZH/IOZL) - Maintains high-impedance integrity during bus sharing, reducing contention current. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded control and communications equipment. |
| Power-Up State | Outputs in 3-state - Prevents bus contention during power sequencing in multi-device systems. |
Pinout & Package
74ABT541PW,118 is housed in a 20-pin plastic thin shrink small outline package (TSSOP), 4.4 mm body width, lead pitch 0.65 mm, compliant with SOT360-1 mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE0, OE1 | Independent active-low 3-state enables - Allows selective activation of output groups for time-multiplexed bus access. |
| 2–9 | A0–A7 | Data inputs - Accept TTL/CMOS-compatible logic levels; placed on one side for simplified routing. |
| 11–18 | Y0–Y7 | Non-inverting buffered outputs - Provide high-current drive with controlled rise/fall times and 3-state isolation. |
| 10 | GND | Ground reference - Shared return path for all I/O and supply currents; requires low-inductance connection. |
| 20 | VCC | Positive supply - Powers internal BiCMOS circuitry; decoupling capacitor placement critical near this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Octal 3-state buffer architecture | Enables bidirectional or shared-bus topologies with precise output gating via two separate enables. |
| BiCMOS process technology | Combines CMOS low static power (ICCZ = 500 nA) with bipolar speed and drive strength. |
| Live insertion/extraction support | Permits hot-swap replacement in backplane or modular systems without system shutdown. |
| Latch-up immunity >500 mA | Guarantees robustness against transient current faults per JEDEC JC40.2, enhancing field reliability. |
| ESD protection >2000 V HBM | Reduces handling sensitivity and improves yield in automated assembly and test environments. |
Applications
| Industrial Control Backplanes | Legacy System Bus Expansion |
|---|---|
|
Use Scenario: Interfacing microcontroller address/data buses to extended peripheral slots in programmable logic controllers. IC Role / Device Role / Timing Role: Octal buffer isolating and driving 8-bit data lanes between CPU and expansion modules with precise 3-state timing control. Use Value: Eliminates need for discrete pull-ups or level shifters while sustaining 2.9 ns propagation delay under full load. |
Use Scenario: Adding memory-mapped I/O capability to aging 80x86-based instrumentation platforms. IC Role / Device Role / Timing Role: Line driver extending fan-out from legacy bus controllers to multiple daughterboards with TTL-compatible voltage thresholds. Use Value: Delivers 64 mA sink current per output to overcome trace capacitance and maintain signal integrity over 15 cm runs. |
| Test Equipment Signal Routing | Communications Protocol Adapters |
|
Use Scenario: Configurable signal path switching in automated test equipment (ATE) fixture interfaces. IC Role / Device Role / Timing Role: 3-state buffer enabling dynamic reconfiguration of DUT signal paths without hardware changes. Use Value: Power-up 3-state behavior prevents glitches during power-on reset sequences in multi-rail ATE systems. |
Use Scenario: Level translation and buffering between UART peripherals and RS-232/RS-485 transceivers in protocol converter modules. IC Role / Device Role / Timing Role: Isolating logic-level signals before analog interface stages while providing noise margin via 0.8 V/2.0 V thresholds. Use Value: Input clamp voltage (–1.2 V) and ESD hardening protect downstream analog components from coupling transients. |
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 |
|---|---|---|---|
| SN74ABT244N | Octal buffer with single 3-state enable (not dual OE); identical AC/DC specs and pinout except enable configuration. | Requires external logic to replicate dual-OE functionality; suitable only when grouped enable suffices. | Select when board layout uses centralized enable control and space constraints favor DIP-20 package. |
| 74LVT244PW | Lower VCC range (2.7–3.6 V); 3.3 V logic family; 3.1 ns propagation delay; 24 mA output drive. | Not 5 V tolerant; incompatible with mixed-voltage 5 V bus systems without level translation. | Choose only for new 3.3 V designs where power efficiency and lower EMI outweigh legacy compatibility needs. |
Compared with SN74ABT244N and 74LVT244PW, the 74ABT541PW,118 uniquely supports independent control of two output subsets via OE0/OE1-critical for time-sliced bus arbitration-while maintaining full 5 V operation, 64 mA drive, and industrial temperature range without voltage translation.
Availability
74ABT541PW,118 is available at Aetrix Electronics and suitable for industrial control backplanes, legacy system bus expansion, and test equipment signal routing requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 74ABT541PW,118 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
NXP Semiconductors, headquartered in Eindhoven, Netherlands, develops high-performance logic, interface, and automotive ICs with emphasis on reliability, longevity, and industrial qualification.
The 74ABT541PW,118 belongs to NXP's legacy ABT-series BiCMOS logic family, engineered specifically for high-speed, high-drive 5 V bus interfacing in industrial and telecom infrastructure where fan-out extension and noise-immune signal integrity are critical.
FAQ
What is the function of pins 1 and 19 on the 74ABT541PW,118?
Pins 1 and 19 are OE0 and OE1 - independent active-low 3-state output enable inputs. When either is low, its corresponding group of four outputs (e.g., OE0 controls Y0–Y3) enters high-impedance state. Both must be low to activate all eight outputs. This dual-enable architecture enables flexible bus segmentation in the 74ABT541PW,118.
Does the 74ABT541PW,118 support live insertion?
Yes, the 74ABT541PW,118 supports live insertion and extraction per manufacturer specification. Its BiCMOS design, combined with built-in latch-up protection (>500 mA) and ESD hardening (>2000 V HBM), allows safe hot-plug operation in backplane or modular systems without disrupting adjacent devices or causing system reset.
What is the maximum output current rating for the 74ABT541PW,118?
The 74ABT541PW,118 is rated for 64 mA sink current per output (IOL) and –32 mA source current (IOH) under recommended operating conditions (VCC = 4.5 V to 5.5 V, Tamb = –40°C to +85°C). These values are specified at VO = 0.55 V (low) and VO = 2.0 V (high), ensuring reliable drive into standard TTL loads.
Is the 74ABT541PW,118 pin-compatible with the 74ABT241?
No, the 74ABT541PW,118 is not pin-compatible with the 74ABT241. While both are octal buffers, the 74ABT241 uses a single 3-state enable and different pin assignment (e.g., enable on pin 1 only). The 74ABT541PW,118 has dual enables (pins 1 and 19) and distinct pinout per SOT360-1 layout - verified in Philips' 1998 datasheet Figure 1.
What is the power-up behavior of the 74ABT541PW,118 outputs?
The 74ABT541PW,118 features power-up 3-state: outputs remain in high-impedance until VCC reaches valid operating range and enable inputs stabilize. This prevents bus contention during power sequencing. The behavior is inherent to the BiCMOS design and confirmed in the "Power-up 3-State" feature list and functional description of the 74ABT541PW,118.
74ABT541PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74ABT541PW,118 FAQ
1.How can I place an order for 74ABT541PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT541PW,118 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 74ABT541PW,118 reliable?
The price and inventory of 74ABT541PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT541PW,118 is usually 5 days.
3.What payment methods are accepted for 74ABT541PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT541PW,118 transactions.
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4.How is shipping managed for 74ABT541PW,118?
74ABT541PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT541PW,118 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 74ABT541PW,118?
For technical support, including 74ABT541PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT541PW,118 requirements.
6.How does Aetrix verify that 74ABT541PW,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT541PW,118 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 74ABT541PW,118 meets industry standards.
7.What is the process for return or replacement of 74ABT541PW,118?
All 74ABT541PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT541PW,118, 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 74ABT541PW,118 part is unused and in its original packaging.
Return procedure for 74ABT541PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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