My Inquiry
My Account
Texas Instruments SN74AHC541DGVR
- Part No.:
- SN74AHC541DGVR
- Manufacturer:
- Texas Instruments
- Package:
- 20-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AHC541DGVR.pdf
- Description:
- IC BUF NON-INVERT 5.5V 20TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,988
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AHC541DGVR from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for bus line driving and memory address register buffering in 2V–5.5V systems. It features dual active-low output-enable inputs (OE1, OE2), 20-pin TVSOP package, ±25mA output drive per channel, and propagation delays as low as 3.5ns at 5V. It is used in PC motherboard I/O expansion and server backplane interface circuits.
For engineers reviewing the SN74AHC541DGVR datasheet, SN74AHC541DGVR pinout, SN74AHC541DGVR application, or SN74AHC541DGVR equivalent, key selection criteria include its dual 3-state control architecture, input overvoltage tolerance up to 5.5V, low-output-ring characteristics due to controlled edge rates, thermal resistance of 119.2°C/W (RθJA), and compatibility with industrial temperature range (–40°C to 125°C).
Technical Context
The SN74AHC541DGVR implements eight independent noninverting buffers, each with separate input (A1–A8) and output (Y1–Y8) pins arranged on opposite sides of the TVSOP-20 package to simplify PCB routing. Its dual active-low output-enable logic (OE1, OE2) allows grouped 3-state control of four-channel subsets.
It operates across 2V–5.5V VCC, supports down-translation (5.5V-tolerant inputs into lower VCC), and delivers 4mA/8mA sink/source drive at 3.3V/5V respectively. Input transition rate is limited to 100 ns/V at 3.3V and 20 ns/V at 5V to suppress ringing-critical for noise-sensitive bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - Enables interoperability across 3.3V and 5V logic domains; supports mixed-voltage system interfacing. |
| Output Drive | ±8 mA at 5 V - Sufficient to drive standard CMOS loads and moderate-capacitance buses without external termination. |
| tPLH/tPHL (5V) | 3.5 ns typical (CL = 15 pF) - Ensures fast signal propagation for high-speed address/data latching in memory subsystems. |
| Input Voltage Tolerance | Up to 5.5 V regardless of VCC - Allows safe interfacing with legacy 5V peripherals while powered from 3.3V rails. |
| 3-State Enable Logic | Active-low OE1/OE2 AND gate - Provides flexible partitioning: OE1 controls Y1–Y4, OE2 controls Y5–Y8 for selective bus isolation. |
| Thermal Resistance | RθJA = 119.2°C/W (TVSOP) - Requires careful thermal layout in high-density applications; derating needed above 70°C ambient. |
| ESD Rating | HBM ±2000 V - Meets industrial handling requirements without special ESD precautions during assembly. |
Pinout & Package
SN74AHC541DGVR uses a 20-pin Thin Very Small Outline Package (TVSOP) with 0.4 mm lead pitch, body size 5.00 mm × 4.40 mm, and total package size 5.00 mm × 6.4 mm. Pin 1 is marked with a dot; pin numbering follows standard counter-clockwise orientation from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | OE1, OE2 | Active-low output-enable inputs; both must be low to enable corresponding Y-group outputs (Y1–Y4 for OE1, Y5–Y8 for OE2). |
| 2–9 | A1–A8 | Buffer input terminals; accept 5.5V-tolerant logic signals independent of VCC level. |
| 10 | GND | Ground reference for all internal circuitry and output drivers; must be low-impedance connection. |
| 11–18 | Y1–Y8 | Noninverting 3-state outputs; high-impedance when respective OE is high; drive strength ±8 mA at 5V. |
| 20 | VCC | Power supply input (2–5.5 V); requires local 0.1 µF bypass capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 2V–5.5V operation enables single device deployment across 3.3V and 5V system partitions without level shifters. |
| Input Overvoltage Tolerance | Inputs withstand up to 5.5V even at VCC = 2V - eliminates need for external clamping diodes in mixed-voltage interfaces. |
| Controlled Edge Rates | Δt/Δv = 20 ns/V at 5V limits slew-induced ringing - reduces EMI and improves signal integrity on unterminated traces. |
| Dual Independent 3-State Control | Separate OE1/OE2 pins allow selective disabling of upper/lower half of outputs - essential for time-multiplexed bus arbitration. |
| Low Power Consumption | ICC = 4 µA typical at 5.5V - minimizes quiescent current in always-on I/O buffer applications like hot-swap controllers. |
Applications
| PC Motherboard I/O Expansion | Server Backplane Interface |
|---|---|
|
Use Scenario: Buffering PCI Express configuration address lines between southbridge and peripheral slots. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating shared address bus segments during hot-plug enumeration. Use Value: Dual OE control enables precise timing of segment activation/deactivation, preventing bus contention during PCIe link training. |
Use Scenario: Driving differential pair enable signals across 20+ cm backplane traces in 1U rack-mounted servers. IC Role / Device Role / Timing Role: Low-ring buffer translating FPGA GPIO outputs to backplane control lines with matched propagation delay. Use Value: 3.5ns max tPHL at 5V ensures setup/hold compliance for 100 MHz control clocks; slow edges suppress crosstalk-induced jitter. |
| Industrial PLC I/O Module | Network Switch Management Bus |
|
Use Scenario: Isolating microcontroller GPIOs from relay driver arrays in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Octal buffer providing galvanically isolated (via optocoupler stage) digital output staging before power switching. Use Value: ±25mA per output drives optocoupler LEDs directly; 125°C rating supports operation in uncooled enclosures. |
Use Scenario: Interfacing baseband processor UART signals to multi-port Ethernet switch management EEPROMs and PHY registers. IC Role / Device Role / Timing Role: Bidirectional bus buffer enabling shared I²C/SMBus access across multiple ASICs without protocol collision. Use Value: Input overvoltage tolerance allows direct connection to 5V EEPROMs while MCU runs at 3.3V; 3-state outputs prevent bus lockup during firmware updates. |
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 |
|---|---|---|---|
| SN74AHCT541PW | CMOS-to-TTL compatible; VIH = 2.0V min at VCC = 4.5V - requires higher input voltage for guaranteed high-level recognition. | Designed for legacy 5V TTL system integration; not suitable for 2V–3.3V-only designs. | Select when interfacing with older 5V TTL logic families where AHC's higher VIH threshold may cause marginal switching. |
| SN74LVC541APW | Narrower VCC range (1.65V–3.6V); higher drive (±24mA at 3.3V); faster tPLH (2.5ns typ at 3.3V). | Optimized for modern low-voltage mobile/embedded platforms; lacks 5.5V input tolerance. | Prefer for battery-powered or space-constrained designs requiring sub-3.6V operation and maximum speed, but verify input voltage compatibility. |
Compared with SN74AHCT541PW and SN74LVC541APW, the SN74AHC541DGVR uniquely balances wide voltage operation (2V–5.5V), 5.5V-tolerant inputs, and industrial temperature support - making it the only choice for mixed-voltage, extended-temperature infrastructure equipment where reliability trumps raw speed.
Availability
SN74AHC541DGVR is available at Aetrix Electronics and suitable for PC motherboard I/O expansion, server backplane interface, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74AHC541DGVR 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in logic, power management, and signal chain solutions for industrial, automotive, and communications markets.
The SN74AHC541DGVR belongs to TI's advanced high-speed CMOS (AHC) logic family, engineered for robust bus interface applications demanding wide supply range, noise immunity, and reliable 3-state control in harsh environments.
FAQ
What is the maximum operating temperature for SN74AHC541DGVR?
The SN74AHC541DGVR is rated for operation from –40°C to +125°C ambient temperature. This industrial-grade thermal specification is validated per TI's production test conditions and applies specifically to the DGV (TVSOP) package variant. Derating of output current and timing parameters is required above 70°C ambient per Section 5.3 of the datasheet.
Does SN74AHC541DGVR support 5V-tolerant inputs when powered from 3.3V?
Yes, SN74AHC541DGVR supports input voltages up to 5.5V regardless of VCC level - including when VCC = 3.3V. This overvoltage tolerance is inherent to its AHC process design and eliminates the need for external level-shifting components when interfacing with 5V peripherals.
How are the output-enable pins OE1 and OE2 functionally related in SN74AHC541DGVR?
In SN74AHC541DGVR, OE1 and OE2 are independent active-low enables: OE1 controls outputs Y1–Y4, and OE2 controls Y5–Y8. Both must be low to activate their respective group; if either is high, its four outputs enter high-impedance state. This dual-control architecture enables selective bus segmentation without external logic.
What is the recommended bypass capacitor for SN74AHC541DGVR?
Texas Instruments specifies a 0.1 µF ceramic capacitor placed as close as possible to the VCC (pin 20) and GND (pin 10) pins of SN74AHC541DGVR. This minimizes high-frequency supply noise and prevents output instability during simultaneous switching of multiple outputs.
Is SN74AHC541DGVR pin-compatible with other packages in the SN74AHC541 family?
No - SN74AHC541DGVR uses the 20-pin TVSOP (DGV) package with 0.4 mm pitch, which is physically and thermally distinct from SSOP (DB), SOIC (DW), or TSSOP (PW) variants. While electrical functionality and pin functions are identical across packages, PCB layout, thermal relief, and reflow profiles differ significantly and require package-specific design validation.
SN74AHC541DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- 20-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TVSOP
SN74AHC541DGVR FAQ
1.How can I place an order for SN74AHC541DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC541DGVR 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 SN74AHC541DGVR reliable?
The price and inventory of SN74AHC541DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC541DGVR is usually 5 days.
3.What payment methods are accepted for SN74AHC541DGVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AHC541DGVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AHC541DGVR?
SN74AHC541DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AHC541DGVR 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 SN74AHC541DGVR?
For technical support, including SN74AHC541DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC541DGVR requirements.
6.How does Aetrix verify that SN74AHC541DGVR is sourced from the original manufacturer or authorized distributors?
All SN74AHC541DGVR 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 SN74AHC541DGVR meets industry standards.
7.What is the process for return or replacement of SN74AHC541DGVR?
All SN74AHC541DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC541DGVR, 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 SN74AHC541DGVR part is unused and in its original packaging.
Return procedure for SN74AHC541DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AHC541DGVR 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…
