My Inquiry
My Account
Texas Instruments SN74LVCH16541ADGG
- Part No.:
- SN74LVCH16541ADGG
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVCH16541ADGG.pdf
- Description:
- IC BUFF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVCH16541ADGG from Texas Instruments is a noninverting 16-bit buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation. It features dual 8-bit sections (1A/1Y and 2A/2Y), independent output-enable controls (1OE1/1OE2 and 2OE1/2OE2), bus-hold on all data inputs, and mixed-mode signal compatibility (5-V-tolerant inputs with 3.3-V VCC). It is used in backplane interface buffering and hot-swap-capable bus expansion systems.
For engineers reviewing the SN74LVCH16541ADGG datasheet, SN74LVCH16541ADGG pinout, SN74LVCH16541ADGG application, or SN74LVCH16541ADGG equivalent, key selection criteria include 3-state timing (ten = 5.6 ns max at 3.3 V), bus-hold current (±75 µA at 3 V), output drive strength (±24 mA at 3 V), and thermal performance (θJA = 89°C/W in DGG package).
Technical Context
The SN74LVCH16541ADGG implements two independent 8-bit noninverting buffer sections, each controlled by two low-active output-enable inputs (e.g., 1OE1 and 1OE2). Both enables must be low for that section's Y outputs to drive; either high forces high-impedance state. Bus-hold circuitry actively maintains valid logic levels on floating A inputs without external resistors.
It supports live insertion via power-off output disable and operates across –40°C to 85°C. Input voltage tolerance extends to 5.5 V regardless of VCC, enabling translation between 3.3-V logic domains and legacy 5-V peripherals. Output clamping and ground-bounce suppression (VOLP < 0.8 V) enhance signal integrity in dense PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables interoperability with modern low-voltage logic while retaining backward compatibility with 3.3-V systems. |
| IOH/IOL | ±24 mA at VCC = 3 V - Sufficient drive strength to fan out to multiple CMOS loads or drive moderate capacitive buses. |
| ten / tdis | 5.6 ns / 6.8 ns max at 3.3 V - Fast 3-state enable/disable timing critical for dynamic bus arbitration and time-multiplexed data paths. |
| Bus-Hold Current | ±75 µA at VCC = 3 V - Actively holds unused inputs at valid logic levels, eliminating need for external pullup/pulldown resistors and reducing BOM count. |
| Input Voltage Tolerance | 0 V to 5.5 V - Allows direct connection to 5-V TTL or LVTTL sources without level-shifting circuitry in mixed-voltage systems. |
| θJA | 89°C/W (DGG package) - Thermal resistance validated for standard JEDEC 2-layer board layout, supporting reliable operation at full I/O loading. |
| ESD Rating | >2000 V HBM, >200 V MM - Robust handling during assembly and field service, reducing risk of latent damage in manufacturing environments. |
Pinout & Package
SN74LVCH16541ADGG is housed in a 48-pin Thin-Shrink Small-Outline (DGG) package, 12.5 mm × 6.1 mm × 1.75 mm body size, 0.5-mm lead pitch, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE1, 1OE2, 2OE1, 2OE2 | Low-active output-enable control | Each pair governs one 8-bit section; both enables must be low for corresponding Y outputs to drive - enables granular bus partitioning. |
| 1A1–1A8, 2A1–2A8 | Data inputs | 16 total inputs with integrated bus-hold; tolerate 5.5-V inputs at any VCC from 1.65 V to 3.6 V. |
| 1Y1–1Y8, 2Y1–2Y8 | Noninverting buffered outputs | 16 total 3-state outputs; sink/source ±24 mA at 3 V; support hot-swap via power-off high-Z state. |
| VCC (Pins 7, 18, 28, 39) | Supply voltage | Four dedicated VCC pins reduce supply impedance and improve noise immunity across wide I/O array. |
| GND (Pins 4, 10, 15, 21, 25, 32, 42, 45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for maintaining signal integrity at high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC eliminates external level shifters when interfacing with legacy 5-V peripherals. |
| Integrated bus-hold | Active input hold circuitry removes requirement for 10-kΩ external pullup/pulldown resistors on unused data lines. |
| Live-insertion support | Outputs automatically enter high-impedance state during power-off, preventing bus contention during hot-plug operations. |
| Low ground bounce | VOLP < 0.8 V at 3.3 V ensures minimal noise coupling into shared ground planes under heavy switching loads. |
| Wide temperature range | Specified from –40°C to +85°C meets industrial-grade reliability requirements for embedded control and communications equipment. |
Applications
| Backplane Interface Buffering | Hot-Swap I/O Expansion |
|---|---|
|
Use Scenario: Isolating and driving signals between CPU module and peripheral slots in modular industrial PLC chassis. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer with independent OE controls manages bidirectional data lanes on parallel backplane bus. Use Value: Bus-hold prevents floating inputs during slot insertion/removal; 3-state timing (tdis = 6.8 ns) enables fast bus arbitration without glitches. |
Use Scenario: Enabling safe insertion/removal of mezzanine cards in telecom line-card shelves operating at 3.3-V logic. IC Role / Device Role / Timing Role: Level-translating buffer provides 5-V-compatible inputs and 3.3-V outputs while supporting live insertion. Use Value: Power-off high-Z output behavior prevents backfeeding or contention; 2000-V HBM ESD rating withstands handling stress. |
| Memory Address/Data Latching | Legacy Peripheral Interface |
|
Use Scenario: Driving address/data bus segments in FPGA-based embedded controllers with limited I/O drive capability. IC Role / Device Role / Timing Role: Dual-section 3-state buffer isolates FPGA I/O from load capacitance of long traces or multiple devices. Use Value: ±24 mA drive at 3 V supports up to 10 pF per output; low tpd (4.2 ns) preserves setup/hold margins in high-speed memory access. |
Use Scenario: Interfacing modern 3.3-V microcontrollers to legacy 5-V parallel EEPROMs or LCD controllers. IC Role / Device Role / Timing Role: Voltage-tolerant input buffer translates 5-V logic levels to 3.3-V domain without external components. Use Value: 0–5.5 V input range eliminates discrete resistor-divider networks; bus-hold maintains valid state during EEPROM read cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (±24 mA only at VCC ≥ 3 V); no bus-hold; 48-pin DGG package same footprint. | Lacks bus-hold - requires external pullups on unused inputs; not suitable for floating-input scenarios. | Select when cost sensitivity outweighs need for bus-hold and mixed-voltage tolerance is not required. |
| 74ALVCH162244DLR | Higher speed (tpd = 3.2 ns typ at 3.3 V); same bus-hold and 5-V-tolerant inputs; 48-pin DL package (300-mil width, different footprint). | DL package has larger body (12.8 mm × 7.6 mm) and 0.65-mm pitch - requires PCB layout change. | Select when sub-4 ns propagation delay is mandatory and board redesign for DL package is acceptable. |
Compared with SN74LVCH16541ADGG, SN74LVC16244ADGGR omits bus-hold and mixed-voltage support but shares pinout; 74ALVCH162244DLR delivers faster timing but mandates package redesign - SN74LVCH16541ADGG uniquely balances robustness, integration, and drop-in compatibility in DGG format.
Availability
SN74LVCH16541ADGG is available at Aetrix Electronics and suitable for industrial automation backplanes, telecom hot-swap modules, and FPGA-based embedded controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVCH16541ADGG 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 leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability interface ICs.
The SN74LVCH16541ADGG belongs to TI's Widebus™ family of advanced CMOS buffers, engineered specifically for robust signal integrity, mixed-voltage interoperability, and industrial-grade reliability in high-density digital systems.
FAQ
What is the maximum input voltage the SN74LVCH16541ADGG can tolerate?
The SN74LVCH16541ADGG supports an input voltage range of 0 V to 5.5 V, independent of VCC. This allows direct connection to 5-V logic sources even when powered from 1.65 V to 3.6 V, making it ideal for voltage translation in mixed-signal systems without external level shifters.
Does the SN74LVCH16541ADGG require external pullup resistors on unused inputs?
No. The SN74LVCH16541ADGG integrates active bus-hold circuitry on all 16 data inputs, which maintains valid logic states on floating or unused pins. This eliminates the need for external pullup or pulldown resistors, reducing BOM count and PCB area.
Can the SN74LVCH16541ADGG be used in hot-swap applications?
Yes. The SN74LVCH16541ADGG disables its outputs automatically during power-off, placing them in high-impedance state. This prevents bus contention and backfeeding, enabling safe live insertion and removal in modular systems such as telecom line cards or industrial backplanes.
What is the thermal performance of the SN74LVCH16541ADGG in its DGG package?
The SN74LVCH16541ADGG in the 48-pin DGG package has a junction-to-ambient thermal resistance (θJA) of 89°C/W under standard JEDEC 2-layer board conditions. This value supports continuous operation at full I/O loading within the –40°C to +85°C ambient range.
How many output-enable signals does the SN74LVCH16541ADGG have, and how do they operate?
The SN74LVCH16541ADGG has four low-active output-enable inputs: 1OE1 and 1OE2 for the first 8-bit section, and 2OE1 and 2OE2 for the second. Both enables in a section must be low for that section's outputs to drive; if either is high, the corresponding Y outputs go high-impedance - enabling flexible bus segmentation.
SN74LVCH16541ADGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVCH16541ADGG FAQ
1.How can I place an order for SN74LVCH16541ADGG through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVCH16541ADGG 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 SN74LVCH16541ADGG reliable?
The price and inventory of SN74LVCH16541ADGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCH16541ADGG is usually 5 days.
3.What payment methods are accepted for SN74LVCH16541ADGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVCH16541ADGG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVCH16541ADGG?
SN74LVCH16541ADGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVCH16541ADGG 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 SN74LVCH16541ADGG?
For technical support, including SN74LVCH16541ADGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCH16541ADGG requirements.
6.How does Aetrix verify that SN74LVCH16541ADGG is sourced from the original manufacturer or authorized distributors?
All SN74LVCH16541ADGG 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 SN74LVCH16541ADGG meets industry standards.
7.What is the process for return or replacement of SN74LVCH16541ADGG?
All SN74LVCH16541ADGG units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCH16541ADGG, 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 SN74LVCH16541ADGG part is unused and in its original packaging.
Return procedure for SN74LVCH16541ADGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVCH16541ADGG 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…
