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Texas Instruments SN74LVCH16541ADGGR
- Part No.:
- SN74LVCH16541ADGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVCH16541ADGGR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,704
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Product details
Overview
SN74LVCH16541ADGGR 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 two independent 8-bit sections (1A/1Y and 2A/2Y), dual output-enable controls per section (1OE1/1OE2, 2OE1/2OE2), bus-hold on all inputs, and Ioff partial-power-down support. Used in mixed-voltage board-level signal translation between 3.3-V and 5-V logic domains.
For engineers reviewing the SN74LVCH16541ADGGR datasheet, SN74LVCH16541ADGGR pinout, SN74LVCH16541ADGGR application, or SN74LVCH16541ADGGR equivalent, key selection criteria include 3.3-V-compatible 16-bit bidirectional buffering, 5.5-V-tolerant inputs, sub-5-ns propagation delay at 3.3 V, bus-hold functionality eliminating external resistors, and TSSOP-48 packaging for high-density PCB layouts.
Technical Context
This device implements dual 8-bit noninverting buffer sections with independent 3-state control logic: both OE inputs per section must be low to enable outputs; either high forces high-impedance state. The bus-hold circuit maintains valid logic levels on undriven inputs without external components.
Ioff protection disables outputs during power-down to prevent backflow current, while input voltage tolerance up to 5.5 V enables use as a level translator in mixed 3.3-V/5-V systems. All parameters are specified across –40°C to 85°C and 1.65–3.6-V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - supports modern low-voltage logic rails and mixed-supply system integration |
| Input Voltage Tolerance | Up to 5.5 V - enables direct interfacing with legacy 5-V TTL/CMOS without level-shifting circuitry |
| Max Propagation Delay | 4.2 ns at 3.3 V - ensures timing-critical data path integrity in high-speed digital interfaces |
| Bus-Hold Current | ±45 µA at 2.3 V - actively holds unconnected inputs at valid logic states, removing need for pullup/pulldown resistors |
| Ioff Leakage | ±10 µA at 5.5 V - blocks damaging current flow during partial power-down, protecting powered-down subsystems |
| Output Drive Strength | ±24 mA at 3 V - drives standard CMOS loads and moderate capacitive traces without external buffers |
| ESD Protection | 2000-V HBM, 1000-V CDM - meets industrial-grade robustness requirements for handling and board assembly |
Pinout & Package
TSSOP-48 (DGG) package: 48-pin thin shrink small-outline package, 12.6 mm × 6.2 mm body, 0.5-mm pitch, 1.2-mm max height, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE1, 1OE2, 2OE1, 2OE2 | Section Output Enable Inputs | Active-low enables for each 8-bit buffer group; both OE signals per section must be low to activate Y outputs |
| 1A1–1A8, 2A1–2A8 | Data Inputs | Noninverting input terminals for respective 8-bit sections; accept 0–5.5 V with bus-hold active |
| 1Y1–1Y8, 2Y1–2Y8 | 3-State Outputs | Buffered noninverting outputs; high-impedance when corresponding OE pair is not asserted |
| VCC (Pins 7, 18, 29, 40) | Power Supply | Four dedicated VCC pins distributed across package to reduce supply inductance and improve noise immunity |
| GND (Pins 4, 15, 26, 37, 48) | Ground Reference | Five GND pins provide low-impedance return paths and enhance signal integrity for high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC enable seamless interface between legacy 5-V peripherals and modern 3.3-V controllers |
| Bus-hold circuitry | Eliminates external pullup/pulldown resistors on all 16 data inputs, reducing BOM count and PCB area |
| Ioff partial-power-down support | Prevents current backflow when VCC = 0 V, allowing safe hot-insertion and multi-rail power sequencing |
| Low ground bounce (VOLP) | Typical <0.8 V at 3.3 V - minimizes noise coupling into shared ground planes during simultaneous switching |
| High noise immunity (VOHV) | Typical >2 V undershoot at 3.3 V - suppresses false triggering from transient noise on output lines |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing 5-V sensor modules and legacy I/O cards to a 3.3-V FPGA-based main controller in programmable logic controller chassis. IC Role / Device Role / Timing Role: 16-bit noninverting buffer with 3-state outputs provides direction-controlled signal isolation and voltage translation between mixed-supply subsystems. Use Value: Eliminates discrete level shifters and pull resistors, reduces layout complexity, and maintains <4.2-ns timing margin for deterministic I/O response. | Use Scenario: Aggregating door lock, window lift, and lighting control signals from multiple 5-V microcontrollers to a central 3.3-V body domain controller. IC Role / Device Role / Timing Role: Dual-section 3-state buffer isolates fault domains and enables time-multiplexed access to shared CAN/LIN transceiver data buses. Use Value: Bus-hold prevents floating inputs during sleep mode transitions; Ioff protects against backfeed during battery voltage sag or module hot-swap. |
| Server Baseboard Management Controller (BMC) | Medical Imaging Data Acquisition Board |
Use Scenario: Buffering SMBus, I²C, and GPIO status signals between 5-V power management ICs and a 3.3-V ARM-based BMC SoC. IC Role / Device Role / Timing Role: Level-translating 16-bit buffer with independent OE control allows selective enabling of diagnostic and telemetry channels. Use Value: 5.5-V input tolerance avoids external clamping diodes; 24-mA drive strength ensures reliable signaling over 10-cm PCB traces. | Use Scenario: Conditioning parallel ADC output lines (16-bit wide) from a 5-V analog front-end before routing to a 3.3-V FPGA processing engine. IC Role / Device Role / Timing Role: High-speed noninverting driver with low propagation skew ensures synchronized capture of time-critical imaging data. Use Value: 4.2-ns tpd at 3.3 V preserves setup/hold margins; distributed VCC/GND pins minimize simultaneous switching noise affecting analog sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Inverting 16-bit transceiver with direction control (DIR), no bus-hold, 3.6-V max VCC | Requires external direction logic; unsuitable where input state retention is required during idle periods | Select when bidirectional data flow is needed and bus-hold is unnecessary |
| 74ALVC164245DGGR | Noninverting 16-bit transceiver with DIR pin, 3.6-V max VCC, no bus-hold or Ioff | Lacks power-down protection and input state retention; requires external pull resistors on unused lines | Choose only for cost-sensitive designs where partial-power-down and bus-hold are not required |
Compared with SN74LVCH16541ADGGR, SN74LVC16245ADGGR offers bidirectional capability but sacrifices bus-hold and Ioff; 74ALVC164245DGGR provides similar drive strength but lacks critical mixed-voltage robustness and power-down safety features essential for modern embedded systems.
Availability
SN74LVCH16541ADGGR is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and medical imaging data acquisition boards requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for SN74LVCH16541ADGGR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The SN74LVCH16541A belongs to TI's Widebus™ family of high-speed, low-voltage logic devices engineered for mixed-voltage board-level interfacing, signal integrity preservation, and power-aware system design.
FAQ
What is the maximum input voltage rating for SN74LVCH16541ADGGR?
The SN74LVCH16541ADGGR supports input voltages up to 5.5 V regardless of VCC level, enabling direct connection to 5-V logic sources while operating from a 1.65–3.6-V supply. This specification is guaranteed across the full operating temperature range (–40°C to 85°C) and is validated per absolute maximum ratings in the official TI datasheet SCAS567H.
Does SN74LVCH16541ADGGR require external pullup or pulldown resistors on its inputs?
No, SN74LVCH16541ADGGR does not require external pullup or pulldown resistors because it integrates active bus-hold circuitry on all 16 data inputs. This feature maintains valid logic states on undriven or floating inputs, reducing BOM cost and PCB space. TI explicitly advises against using external resistors with bus-hold enabled.
Can SN74LVCH16541ADGGR be used in partial-power-down applications?
Yes, SN74LVCH16541ADGGR supports partial-power-down operation via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables all outputs and limits leakage current to ±10 µA, preventing damaging current backflow from live inputs into the unpowered device - a requirement for hot-swap and multi-rail power sequencing systems.
What is the propagation delay of SN74LVCH16541ADGGR at 3.3 V?
The maximum propagation delay (tpd) of SN74LVCH16541ADGGR is 4.2 ns at VCC = 3.3 V and TA = 25°C, as specified in the switching characteristics table of the TI datasheet SCAS567H. Typical values are lower, and performance remains characterized across the full –40°C to 85°C temperature range.
Which package type does SN74LVCH16541ADGGR use, and what are its key mechanical dimensions?
SN74LVCH16541ADGGR uses the TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm body size, 0.5-mm lead pitch, 1.2-mm maximum height, and JEDEC MO-153 compliance. It contains four VCC and five GND pins for optimal power distribution and noise suppression in high-density layouts.
SN74LVCH16541ADGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
SN74LVCH16541ADGGR FAQ
1.How can I place an order for SN74LVCH16541ADGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVCH16541ADGGR 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 SN74LVCH16541ADGGR reliable?
The price and inventory of SN74LVCH16541ADGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVCH16541ADGGR is usually 5 days.
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Once your SN74LVCH16541ADGGR order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for SN74LVCH16541ADGGR?
For technical support, including SN74LVCH16541ADGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVCH16541ADGGR requirements.
6.How does Aetrix verify that SN74LVCH16541ADGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVCH16541ADGGR 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 SN74LVCH16541ADGGR meets industry standards.
7.What is the process for return or replacement of SN74LVCH16541ADGGR?
All SN74LVCH16541ADGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVCH16541ADGGR, 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 SN74LVCH16541ADGGR part is unused and in its original packaging.
Return procedure for SN74LVCH16541ADGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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