My Inquiry
My Account
NXP Semiconductors N74F541D,602
- Part No.:
- N74F541D,602
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
N74F541D,602.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,598
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
N74F541D,602 from Philips Semiconductors is an octal non-inverting 3-state buffer IC designed for bus interface and memory address register buffering in TTL-compatible digital systems. It features 8 bidirectional data channels, 3-state outputs capable of sinking 64mA and sourcing 15mA, and a typical propagation delay of 5.5ns at 5V. It operates across 0°C to +70°C with 5V ±10% supply.
For engineers reviewing the N74F541D,602 datasheet, N74F541D,602 pinout, N74F541D,602 application, or N74F541D,602 equivalent, key selection criteria include output drive strength (64mA sink), dual active-low enable inputs (OE0/OE1), SO20 package compatibility, and direct functional alignment with legacy 74F241-based bus architectures.
Technical Context
The N74F541D,602 implements eight independent non-inverting buffer channels, each controlled by two shared active-low 3-state enable inputs (OE0 and OE1). All outputs enter high-impedance state when either enable is high, enabling flexible bus arbitration.
It uses bipolar FET (F) logic technology with NPN base inputs limiting input loading to ±20µA in both logic states. Its pinout places inputs (I0–I7) and outputs (Y0–Y7) on opposite sides of the 20-pin SO package to simplify PCB routing for parallel bus layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal non-inverting buffer with 3-state outputs |
| Propagation Delay | 5.5ns typical (In to Yn, VCC = 5V, CL = 50pF) |
| Output Drive | Sinks 64mA / sources 15mA - supports heavy capacitive bus loads |
| Supply Current | 55mA typical total ICC (74F541, Tamb = 25°C) |
| Operating Range | 0°C to +70°C ambient, 4.5V–5.5V VCC - commercial-grade reliability |
| Input Loading | ±20µA max per input - minimal loading on upstream TTL/MOS drivers |
Pinout & Package
Package: Plastic small outline (SO20), 20-lead, 7.5 mm body width (SOT163-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | I0, I1 | Data inputs - routed to corresponding Y0/Y1 outputs when enabled |
| 2, 3, 4, 5, 6, 7 | I2–I7 | Data inputs - low-input-current (±20µA) compatible with TTL and MOS logic |
| 8, 9 | OE0, OE1 | Active-low 3-state enables - either high disables all outputs to high-Z |
| 10 | GND | Ground reference - common return for all signals and power |
| 11–18 | Y0–Y7 | Buffered outputs - each sinks 64mA or sources 15mA; high-Z when disabled |
| 20 | VCC | +5V supply - must be decoupled locally due to fast switching transients |
Key Features
| Feature | Design Value |
|---|---|
| High-impedance NPN base inputs | Reduces input loading to ±20µA - preserves fan-out of upstream drivers |
| Dual active-low output enables | OE0 and OE1 provide redundant or split-bus control without external logic |
| Asymmetric output drive capability | 64mA sink vs. 15mA source enables robust low-level bus termination |
| Opposite-side I/O pin arrangement | Minimizes trace crossovers in dense 8-bit bus layouts on double-layer PCBs |
Applications
| Microprocessor Address Bus Interface | Memory Module Data Buffering |
|---|---|
Use Scenario: Driving 16-bit address lines from a 8086/8088 CPU to multiple memory banks with load isolation. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control synchronizing address latching and bus release. Use Value: 5.5ns propagation delay ensures setup/hold timing compliance; 64mA sink current drives >10 TTL loads per line. | Use Scenario: Isolating SRAM data bus from microcontroller during DMA transfers or peripheral access. IC Role / Device Role / Timing Role: Bidirectional data path controller enabling read/write direction switching via OE0/OE1. Use Value: Dual enable inputs allow independent control of upper/lower byte lanes without additional gating logic. |
| Industrial PLC I/O Expansion | Legacy ISA Bus Signal Conditioning |
Use Scenario: Interfacing 8-bit parallel I/O modules to a central controller over noisy factory wiring. IC Role / Device Role / Timing Role: Level-shifting and noise-immune bus driver between isolated logic domains. Use Value: ±20µA input current prevents loading of optocoupler outputs; 0–70°C rating suits industrial enclosures. | Use Scenario: Replacing failed 74F241 buffers on vintage PC motherboards or expansion cards. IC Role / Device Role / Timing Role: Pin-compatible drop-in replacement for ISA bus address/data latching and driving. Use Value: Identical SO20 footprint (SOT163-1) and electrical specs ensure zero-layout change retrofit. |
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 |
|---|---|---|---|
| SN74F241N | PDIP-20 only; 5.0ns typical tPLH; identical I/O structure and DC specs | Requires through-hole PCB assembly; no surface-mount option | Select when legacy through-hole manufacturing or socketed prototyping is required |
| 74ACT241SCX | CMOS technology; 3.3V/5V tolerant; 10ns tPLH; lower ICC (4mA typ) | Higher noise immunity but incompatible with strict 5V TTL input thresholds | Select for mixed-voltage systems where VIH/VIL margins must exceed TTL levels |
Compared with SN74F241N and 74ACT241SCX, the N74F541D,602 offers optimal balance of proven 5V TTL compatibility, SO20 surface-mount readiness, and industrial temperature margin - making it the preferred choice for cost-sensitive, volume-replacement, and legacy-system sustainment designs.
Availability
N74F541D,602 is available at Aetrix Electronics and suitable for microprocessor address bus interface, memory module data buffering, and industrial PLC I/O expansion requiring stable component supply and long-term obsolescence management.
Supply support for N74F541D,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) was a leading European semiconductor manufacturer known for broad logic, analog, and RF product portfolios and industrial-grade reliability.
The 74F family was engineered for high-speed TTL-compatible digital systems requiring low propagation delay, robust drive capability, and commercial-temperature stability - targeting computing, instrumentation, and industrial control applications.
FAQ
What is the function of the N74F541D,602?
The N74F541D,602 is an octal non-inverting 3-state buffer IC. It transmits 8-bit data unidirectionally from inputs I0–I7 to outputs Y0–Y7 when both OE0 and OE1 are low. When either enable is high, all outputs go to high-impedance state. Its design supports bus sharing and memory address/data isolation in 5V TTL systems.
What package type does the N74F541D,602 use?
The N74F541D,602 uses a plastic small outline package (SO20) with 20 leads and 7.5 mm body width, designated SOT163-1. This surface-mount package enables automated assembly and compact board layout while maintaining pin compatibility with the through-hole DIP version (N74F541N).
Does the N74F541D,602 support 3.3V operation?
No, the N74F541D,602 is specified only for 4.5V–5.5V VCC operation per its recommended conditions. It is not 3.3V-tolerant: input thresholds (VIH = 2.0V min, VIL = 0.8V max) and output drive are optimized for 5V TTL systems. Using it with 3.3V supply risks undefined logic states and degraded performance.
How do OE0 and OE1 interact in the N74F541D,602?
In the N74F541D,602, both OE0 and OE1 are active-low enables. The outputs Y0–Y7 are enabled (driving) only when *both* OE0 and OE1 are low. If either OE0 or OE1 is high, all outputs enter high-impedance state. This dual-enable architecture allows fail-safe bus control or split-bus gating without external AND logic.
Is the N74F541D,602 pin-compatible with the N74F540D,602?
Yes, the N74F541D,602 and N74F540D,602 share identical pinouts and package (SOT163-1 SO20), differing only in internal logic: N74F541D,602 is non-inverting, while N74F540D,602 is inverting. Both have same enable inputs, I/O placement, supply/ground pins, and AC/DC specifications - enabling direct functional substitution where inversion is acceptable or compensated.
N74F541D,602 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74F
- 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:
- 15mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
N74F541D,602 FAQ
1.How can I place an order for N74F541D,602 through Aetrix?
Please submit a Request for Quotation (RFQ) for N74F541D,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 N74F541D,602 reliable?
The price and inventory of N74F541D,602 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for N74F541D,602 is usually 5 days.
3.What payment methods are accepted for N74F541D,602?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for N74F541D,602 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for N74F541D,602?
N74F541D,602 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your N74F541D,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 N74F541D,602?
For technical support, including N74F541D,602 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your N74F541D,602 requirements.
6.How does Aetrix verify that N74F541D,602 is sourced from the original manufacturer or authorized distributors?
All N74F541D,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 N74F541D,602 meets industry standards.
7.What is the process for return or replacement of N74F541D,602?
All N74F541D,602 units undergo pre-shipment inspection (PSI). If there is an issue with N74F541D,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 N74F541D,602 part is unused and in its original packaging.
Return procedure for N74F541D,602:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
N74F541D,602 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
