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NXP Semiconductors 74ABT541D,602
- Part No.:
- 74ABT541D,602
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74ABT541D,602.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,102
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Product details
Overview
74ABT541D,602 from NXP Semiconductors (formerly Philips) is an octal 3-state buffer/line driver in a 20-pin SO package, designed for high-speed bus interfacing in 5V TTL-compatible systems. It provides 32mA source / 64mA sink output drive, 2.9ns typical propagation delay (An to Yn), and operates across –40°C to +85°C. It enables bidirectional bus isolation in microprocessor address/data buses.
For engineers reviewing the 74ABT541D,602 datasheet, 74ABT541D,602 pinout, 74ABT541D,602 application, or 74ABT541D,602 equivalent, key selection criteria include guaranteed 3-state output leakage (≤50µA), power-up 3-state behavior, latch-up immunity (>500mA), ESD robustness (2000V HBM), and compatibility with legacy ABT241-based designs.
Technical Context
The 74ABT541D,602 implements a BiCMOS octal buffer architecture with separate active-low output enable inputs (OE0, OE1) controlling two groups of four outputs each. Its logic function follows standard IEEE/IEC truth table: outputs go high-impedance when either OE is high.
It delivers rail-to-rail 5V operation with VIH = 2.0V min and VIL = 0.8V max, supports live insertion/extraction, and features input/output capacitance of 4pF and 7pF respectively - enabling clean signal integrity on dense PCB layouts with minimized crosstalk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5V–5.5V - ensures compatibility with 5V TTL and CMOS logic families without level-shifting. |
| Propagation delay | 2.9ns typical (An→Yn, CL=50pF) - enables sub-350MHz bus timing margins in high-speed control applications. |
| Output drive | Sinks 64mA / sources 32mA - drives multiple TTL loads or long traces without external buffers. |
| 3-State leakage | ≤50µA (IOZL/IOZH, VCC=5.5V) - prevents unintended current paths during bus arbitration or power sequencing. |
| Input capacitance | 4pF - minimizes capacitive loading on upstream drivers, preserving edge rate in fan-out-heavy configurations. |
| ESD rating | 2000V HBM, 200V MM - meets industrial handling requirements without additional protection circuitry. |
| Latch-up immunity | >500mA per JEDEC JC40.2 - withstands transient overcurrent events in noisy industrial environments. |
Pinout & Package
74ABT541D,602 is housed in a 20-pin plastic small outline package (SO20, SOT163-1), 7.5mm body width, with gull-wing leads and standard 0.050" pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE0, OE1 | Active-low output enables - independently disable Y0–Y3 (OE0) or Y4–Y7 (OE1) for partial bus control. |
| 2–9 | A0–A7 | Data inputs - accept TTL/CMOS logic levels; low input capacitance (4pF) reduces loading on preceding stage. |
| 11–18 | Y0–Y7 | 3-State outputs - sink 64mA or source 32mA; high-impedance state entered within 4.6ns (tPHZ/tPLZ max). |
| 10 | GND | Ground reference - dedicated ground pin improves noise immunity and stabilizes output switching. |
| 20 | VCC | +5V supply - decoupling required near pin 20 due to dynamic current spikes during output transitions. |
Key Features
| Feature | Design Value |
|---|---|
| Power-up 3-State | Outputs remain in high-impedance until VCC stabilizes - prevents bus contention during power ramp-up. |
| Live insertion/extraction support | Enables hot-swap capability in backplane or modular systems without system reset or shutdown. |
| Efficient pinout | Inputs (pins 2–9) and outputs (pins 11–18) on opposite sides - simplifies routing and reduces layer count in 2-layer PCBs. |
| Latch-up protection | Exceeds 500mA per JEDEC JC40.2 - eliminates need for external current-limiting resistors in fault-prone environments. |
| Low ICCZ in 3-State | 500nA typical supply current when outputs disabled - critical for low-power standby modes in embedded controllers. |
Applications
| Microprocessor Address Bus Driver | Industrial PLC I/O Expansion Module |
|---|---|
Use Scenario: Driving 8-bit address lines from a microcontroller to multiple peripheral decoders in a compact industrial controller. IC Role / Device Role / Timing Role: Octal unidirectional buffer with independent 3-state enables - isolates address bus segments during DMA cycles. Use Value: 2.9ns propagation delay ensures setup/hold compliance at 20MHz bus clock; 64mA sink capability handles capacitive loads up to 150pF. |
Use Scenario: Interfacing a programmable logic controller's internal data bus to external relay driver cards via ribbon cable. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer - translates MCU logic to robust 5V TTL signals driving opto-isolators. Use Value: 32mA sourcing supports direct LED-driver interface; ESD rating (2000V HBM) withstands factory handling and field maintenance. |
| Legacy System Bus Isolation | Test Equipment Signal Conditioning |
Use Scenario: Replacing obsolete 74LS241 in retro-computing restoration projects requiring drop-in 5V TTL compatibility. IC Role / Device Role / Timing Role: Pin-compatible octal buffer with enhanced drive and speed - maintains original timing while improving noise margin. Use Value: VIH = 2.0V min and VIL = 0.8V max match LS-TTL thresholds; 4pF input capacitance avoids signal degradation on vintage PCB traces. |
Use Scenario: Conditioning digital stimulus signals in automated test equipment before routing to DUT interface connectors. IC Role / Device Role / Timing Role: Controlled-impedance buffer with fast enable/disable - gates test vectors with precise timing windows. Use Value: tPZH/tPZL ≤ 4.8ns ensures sub-5ns enable-to-output transition; power-up 3-State prevents glitch injection during power-on self-test. |
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 non-inverting buffer with dual 4-bit enables; identical AC/DC specs but different pinout (enable pins on opposite side). | Requires PCB layout revision due to relocated OE pins; same thermal and drive performance. | Select when redesign allows pinout optimization and dual-enable grouping aligns with system control architecture. |
| 74LVT541PW,118 | Lower-voltage variant (2.7–3.6V supply); 3.3V logic compatible; 3.2ns propagation delay; 24mA/24mA drive. | Not 5V-tolerant; unsuitable for legacy 5V systems without level translation. | Choose only for new 3.3V designs where lower power and reduced EMI outweigh compatibility with existing 5V infrastructure. |
Compared with SN74ABT244N and 74LVT541PW,118, the 74ABT541D,602 uniquely supports full 5V operation with highest sink current (64mA), making it optimal for driving legacy TTL loads, long cables, or optocouplers without external amplification - while maintaining pinout compatibility with original ABT541 designs.
Availability
74ABT541D,602 is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and legacy system repair requiring stable component supply and long-term obsolescence mitigation.
Supply support for 74ABT541D,602 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 is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The 74ABT541D,602 belongs to NXP's legacy ABT logic family, engineered for high-speed, high-drive 5V TTL-compatible interfacing in mission-critical industrial and computing systems.
FAQ
What is the operating temperature range for the 74ABT541D,602?
The 74ABT541D,602 is rated for operation from –40°C to +85°C. This industrial temperature range ensures reliable performance in harsh environments such as factory automation controls, outdoor test equipment enclosures, and motor drive interfaces where ambient temperatures fluctuate significantly. All DC and AC specifications in the datasheet are guaranteed across this full range.
Does the 74ABT541D,602 support live insertion into a powered system?
Yes, the 74ABT541D,602 supports live insertion and extraction, as confirmed by its design features including power-up 3-state behavior, controlled output turn-on/off timing, and robust ESD/latch-up protection. This capability is validated per manufacturer specification and enables use in modular backplanes and field-serviceable rack systems without requiring system power-down.
How does the 74ABT541D,602 differ from the 74ABT241 in pin configuration?
The 74ABT541D,602 uses a split-enable architecture (OE0 for Y0–Y3, OE1 for Y4–Y7) with inputs on pins 2–9 and outputs on pins 11–18, whereas the 74ABT241 has a single OE and interleaved I/O. This difference means the 74ABT541D,602 is not pin-compatible with the 74ABT241 - board-level replacement requires layout modification despite functional similarity.
What is the maximum capacitive load the 74ABT541D,602 can drive while maintaining specified timing?
The 74ABT541D,602 is characterized with CL = 50pF for AC parameters including propagation delay (2.9ns typ) and enable/disable times. While it can drive higher capacitance, timing degrades predictably: at 100pF, tPLH/tPHL increases to ~4.2ns. For loads >75pF, derating curves in the datasheet must be applied, and series termination may be needed to maintain signal integrity.
Is the 74ABT541D,602 RoHS compliant?
Yes, the 74ABT541D,602 is RoHS compliant and lead-free, as confirmed by NXP's official product change notices and material declarations. The "602" suffix denotes the RoHS-compliant version in SO20 packaging, replacing earlier leaded variants. Full compliance documentation is available through NXP's quality portal under part number 74ABT541D,602.
74ABT541D,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-SOIC (0.295", 7.50mm 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:
- 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-SO
74ABT541D,602 FAQ
1.How can I place an order for 74ABT541D,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT541D,602 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 74ABT541D,602 reliable?
The price and inventory of 74ABT541D,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT541D,602 is usually 5 days.
3.What payment methods are accepted for 74ABT541D,602?
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4.How is shipping managed for 74ABT541D,602?
74ABT541D,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT541D,602 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 74ABT541D,602?
For technical support, including 74ABT541D,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT541D,602 requirements.
6.How does Aetrix verify that 74ABT541D,602 is sourced from the original manufacturer or authorized distributors?
All 74ABT541D,602 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 74ABT541D,602 meets industry standards.
7.What is the process for return or replacement of 74ABT541D,602?
All 74ABT541D,602 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT541D,602, 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 74ABT541D,602 part is unused and in its original packaging.
Return procedure for 74ABT541D,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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