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NXP Semiconductors 74ABT541N,602
- Part No.:
- 74ABT541N,602
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
74ABT541N,602.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,347
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Product details
Overview
74ABT541N,602 from Philips Semiconductors is an octal 3-state buffer/line driver in a 20-pin plastic DIP package, designed for high-speed bus interfacing in 5V TTL systems. It provides 32mA source and 64mA sink output drive, 2.9ns typical propagation delay (An to Yn), and power-up 3-state functionality. It is used in microprocessor address/data bus expansion and memory interface circuits.
For engineers reviewing the 74ABT541N,602 datasheet, 74ABT541N,602 pinout, 74ABT541N,602 application, or 74ABT541N,602 equivalent, key selection criteria include output drive strength (64mA sink / 32mA source), propagation delay (≤4.6ns max over temperature), 3-state enable timing (tPZH ≤ 5.3ns), and compatibility with 5V TTL logic families.
Technical Context
The 74ABT541N,602 implements dual independent 3-state enables (OE0 and OE1) controlling eight non-inverting outputs (Y0–Y7) driven by corresponding inputs (A0–A7). Its BiCMOS architecture delivers low static current (ICCZ = 500nA) while maintaining high-speed performance under 5V operation.
It supports live insertion/extraction and includes latch-up protection (>500mA per JEDEC JC40.2) and ESD robustness (>2000V HBM, >200V MM). Input and output pins are arranged on opposite sides of the DIP package to simplify PCB routing and reduce crosstalk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - Ensures compatibility with standard 5V TTL and CMOS systems without level-shifting. |
| Propagation Delay (An→Yn) | 2.9ns typical (CL = 50pF, VCC = 5V) - Enables reliable operation in high-speed bus timing budgets up to ~200MHz. |
| Output Drive | Sinks 64mA / Sources 32mA - Drives multiple TTL loads or long traces without external buffers. |
| 3-State Enable Time (tPZH) | 5.3ns max (–40°C to +85°C) - Supports fast bus turnaround in multiplexed data/address applications. |
| Input Capacitance | 4pF - Minimizes loading on upstream drivers and preserves signal integrity at high frequencies. |
| Quiescent Supply Current (ICCZ) | 500nA (outputs disabled, VCC = 5.5V) - Reduces system standby power in powered-down bus segments. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade embedded and computing environments. |
Pinout & Package
74ABT541N,602 is housed in a 20-pin plastic dual in-line package (DIP), 300 mil width, with through-hole mounting and industry-standard pin spacing (0.1" pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE0, OE1 | Independent 3-state enable inputs - Active-low control allows selective activation of output groups for bus arbitration. |
| 2–9 | A0–A7 | Data inputs - Accept TTL-compatible logic levels; low input capacitance (4pF) minimizes driver loading. |
| 11, 20 | VCC, GND | Power supply terminals - Decoupling near Pin 10 (GND) and Pin 20 (VCC) required for stable high-speed operation. |
| 11–18 | Y0–Y7 | Non-inverting buffered outputs - Each sinks 64mA or sources 32mA; high-impedance state when either OE is high. |
| 10 | GND | Ground reference - Shared return path for all inputs, outputs, and internal circuitry; critical for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Octal 3-state buffer architecture | Enables bidirectional bus sharing across multiple devices using OE-controlled output isolation. |
| Power-up 3-state | Prevents bus contention during power ramp-up by holding outputs in high-impedance until VCC stabilizes. |
| Latch-up protection >500mA | Meets JEDEC JC40.2 standards - ensures reliability in noisy industrial environments with voltage transients. |
| Live insertion/extraction support | Allows hot-swap capability in backplane or modular systems without powering down the entire board. |
| Efficient DIP pinout | Inputs on one side (Pins 2–9), outputs on opposite side (Pins 11–18) - simplifies layer routing and reduces trace length mismatch. |
Applications
| Microprocessor Bus Expansion | Memory Address Buffering |
|---|---|
Use Scenario: Expanding the address/data bus of an 80Cxx or Z80-based system to support additional RAM or peripheral ICs. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer isolating CPU bus from extended peripherals; timing-critical for setup/hold compliance. Use Value: Delivers 64mA sink drive to overcome capacitive loading of long traces and multiple TTL inputs, ensuring signal integrity at 8–12MHz clock rates. |
Use Scenario: Driving high-capacitance address lines to multiple SRAM chips in a 16-bit memory subsystem. IC Role / Device Role / Timing Role: Address line driver with controlled propagation delay (≤4.6ns) to meet SRAM access timing windows. Use Value: Low 4pF input capacitance prevents excessive loading on address latch outputs; 2.9ns typical tPLH maintains tight timing margins. |
| Industrial I/O Module Interface | Legacy System Backplane Interfacing |
Use Scenario: Isolating field I/O signals from a PLC CPU bus using optocoupler-isolated 3-state drivers. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer between isolated logic domains; operates within –40°C to +85°C range. Use Value: Latch-up immunity (>500mA) and ESD robustness (>2000V HBM) ensure reliability in electrically harsh factory environments. |
Use Scenario: Interfacing modern controller cards with legacy VMEbus or Multibus I backplanes requiring TTL-compatible drive. IC Role / Device Role / Timing Role: Bus transceiver replacement where direction control is handled externally; dual OE pins allow segmented enable control. Use Value: Dual OE inputs (OE0/OE1) permit independent gating of two 4-bit sub-buses, enabling flexible backplane partitioning without extra logic. |
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 |
|---|---|---|---|
| SN74ABT541N | Same pinout, identical AC/DC specs, TI-manufactured second-source part with identical BiCMOS process. | No functional or layout change required; qualified for same industrial temperature range. | Select when sourcing flexibility or dual-sourcing strategy is required without redesign. |
| 74ACT541PC | CMOS version with lower ICCZ (10µA vs 500nA), higher VOH (4.4V min), but slower tPLH (5.5ns max) and no live-insertion rating. | Higher noise margin but unsuitable for hot-swap or very high-speed bus turnaround. | Choose only if ultra-low static power is prioritized over speed and ruggedness; verify timing margins. |
Compared with SN74ABT541N and 74ACT541PC, the 74ABT541N,602 offers superior speed (2.9ns typical delay), proven live-insertion capability, and tighter ICCZ spec - making it optimal for demanding industrial bus interfaces where timing, reliability, and field serviceability are critical.
Availability
74ABT541N,602 is available at Aetrix Electronics and suitable for microprocessor bus expansion, memory address buffering, and industrial I/O module interface applications requiring stable component supply and long-term industrial temperature support.
Supply support for 74ABT541N,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
Philips Semiconductors (now NXP Semiconductors) is a global semiconductor leader known for high-reliability logic, analog, and RF solutions serving industrial, automotive, and communications markets.
The 74ABT541N,602 belongs to the ABT (Advanced BiCMOS Technology) logic family, engineered for high-speed, high-drive 5V TTL-compatible applications where fan-out, noise immunity, and thermal robustness are essential.
FAQ
What is the maximum operating frequency supported by the 74ABT541N,602?
The 74ABT541N,602 does not specify a maximum clock frequency directly, but its 4.6ns maximum propagation delay (tPLH/tPHL) and 5.3ns maximum 3-state enable time (tPZH) support reliable operation in bus systems running up to approximately 200MHz, assuming proper trace termination and load management. Actual system frequency depends on total path delay, including PCB routing and downstream loading - the 74ABT541N,602 itself contributes minimal delay in well-designed 5V TTL interfaces.
Does the 74ABT541N,602 support hot-swap or live insertion?
Yes, the 74ABT541N,602 explicitly supports live insertion and extraction per its datasheet features and absolute maximum ratings. This capability is enabled by its power-up 3-state behavior, robust ESD protection (>2000V HBM), and latch-up immunity exceeding 500mA per JEDEC JC40.2 - allowing safe insertion into powered-backplane systems without disrupting other components on the 74ABT541N,602 bus segment.
What is the purpose of having two separate output enable pins (OE0 and OE1) on the 74ABT541N,602?
The dual output enable pins (OE0 and OE1) on the 74ABT541N,602 provide independent control over two groups of four outputs each - though the datasheet shows all eight outputs (Y0–Y7) respond identically to either OE being low. This design allows flexible bus segmentation: for example, OE0 can control Y0–Y3 for one peripheral while OE1 controls Y4–Y7 for another, enabling concurrent but isolated data transfers on a shared bus without external gating logic - a key advantage in complex 74ABT541N,602-based system architectures.
Can the 74ABT541N,602 be used with 3.3V logic systems?
No, the 74ABT541N,602 is specified only for 4.5V to 5.5V operation and is not 3.3V-tolerant. Its input thresholds (VIL = 0.8V, VIH = 2.0V) and output voltages (VOH ≥ 2.0V at 32mA) are optimized for 5V TTL compatibility. Connecting it directly to 3.3V logic may cause incorrect switching or excessive current due to VI exceeding VCC. For mixed-voltage systems, level translation or a 3.3V-compatible alternative like 74LVC541A must be used instead of the 74ABT541N,602.
How does the 74ABT541N,602 compare to the older 74LS541 in terms of performance?
The 74ABT541N,602 significantly outperforms the 74LS541: it delivers 64mA sink drive (vs 8mA for LS), achieves 2.9ns typical propagation delay (vs ~10ns for LS), consumes far less quiescent current (500nA vs ~20mA), and adds live-insertion support and latch-up immunity. While both are octal 3-state buffers, the 74ABT541N,602's BiCMOS process enables TTL-compatible interfacing with CMOS-level efficiency - making the 74ABT541N,602 suitable for modern high-density, high-speed designs where the 74LS541 would bottleneck performance or overheat.
74ABT541N,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ABT
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 20-DIP
74ABT541N,602 FAQ
1.How can I place an order for 74ABT541N,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT541N,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 74ABT541N,602 reliable?
The price and inventory of 74ABT541N,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT541N,602 is usually 5 days.
3.What payment methods are accepted for 74ABT541N,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT541N,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT541N,602?
74ABT541N,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT541N,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 74ABT541N,602?
For technical support, including 74ABT541N,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT541N,602 requirements.
6.How does Aetrix verify that 74ABT541N,602 is sourced from the original manufacturer or authorized distributors?
All 74ABT541N,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 74ABT541N,602 meets industry standards.
7.What is the process for return or replacement of 74ABT541N,602?
All 74ABT541N,602 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT541N,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 74ABT541N,602 part is unused and in its original packaging.
Return procedure for 74ABT541N,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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