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Texas Instruments SN74LVC16245ADL
- Part No.:
- SN74LVC16245ADL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVC16245ADL.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:861
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Product details
Overview
SN74LVC16245ADL from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between 1.65-V to 3.6-V buses. It supports mixed-mode signaling (5.5-V-tolerant inputs at 3.3-V VCC), delivers ≤4 ns propagation delay at 3.3 V, and features Ioff for live insertion and partial-power-down protection. It is used in printer peripheral interfaces requiring level translation and bus isolation.
For engineers reviewing the SN74LVC16245ADL datasheet, SN74LVC16245ADL pinout, SN74LVC16245ADL application, or SN74LVC16245ADL equivalent, key selection criteria include 48-pin SSOP (DL) package compatibility, 16-bit bidirectional flow control via DIR/OE pins, 5.5-V input tolerance, and guaranteed operation from –40°C to +125°C.
Technical Context
The SN74LVC16245ADL implements two independent 8-bit transceiver channels-each with dedicated direction (DIR) and output-enable (OE) controls-enabling flexible A↔B or B↔A data routing. Its CMOS design ensures balanced drive strength (±24 mA at 3.3 V) and low ground bounce (<0.8 V) and undershoot (>2 V).
It operates across 1.65–3.6 V VCC, accepts 0–5.5 V inputs regardless of VCC, and uses Ioff circuitry to block back-drive current when powered down. The device is not a clocked or registered transceiver; all data paths are combinatorial and asynchronous.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables direct integration into 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| Input Voltage Tolerance | 0 V to 5.5 V - Allows safe interfacing with legacy 5-V systems while powered from 3.3-V rails. |
| Max Propagation Delay | 4.0 ns at VCC = 3.3 V - Supports high-speed parallel bus timing up to ~200 MHz system clock edges. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50-Ω transmission lines or multiple LVC loads without external buffers. |
| Ioff Current | ±20 µA at VCC = 0 V - Prevents damaging back-current during hot-plug or partial-power-down sequences. |
| Operating Temperature | –40°C to +125°C - Qualified for industrial and extended-temperature embedded applications. |
| ESD Rating | 2000-V HBM, 1000-V CDM - Meets JEDEC JESD22-A114/A101 for robust handling in manufacturing environments. |
Pinout & Package
SN74LVC16245ADL is supplied in a 48-pin SSOP (DL) package measuring 15.88 mm × 7.49 mm, with 0.635-mm lead pitch and RoHS-compliant NiPdAu lead finish. It is rated MSL-1 (unlimited floor life) and compatible with standard reflow profiles (peak 260°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH logic selects A→B data flow; LOW enables B→A flow per channel. |
| 1OE, 2OE | Output enable input | Active-LOW disables both A and B ports on respective channel, placing outputs in high-impedance state. |
| A1–A8, B1–B8 | Bidirectional I/O port pins | Each pair (e.g., A1/B1) forms one data lane; pins tolerate 5.5-V signals regardless of VCC. |
| VCC (pins 7,18,31,42) | Power supply | Four distributed VCC pins reduce switching noise and improve power integrity across the 16-bit bus. |
| GND (pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for minimizing ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage interface support | 5.5-V-tolerant inputs allow seamless connection between 3.3-V microcontrollers and 5-V peripherals without external translators. |
| Live-insertion capability | Ioff circuitry limits off-state leakage to ±20 µA, enabling safe board replacement in powered-backplane systems. |
| Low-noise switching | Typical VOLP < 0.8 V and VOHV > 2 V at 3.3 V suppresses ground bounce and supply undershoot in dense PCB layouts. |
| Dual-channel independence | Separate DIR/OE controls per 8-bit section permit asymmetric bus configurations (e.g., one channel A→B, other B→A). |
| Wide temperature operation | Guaranteed functionality from –40°C to +125°C supports deployment in motor drives and telecom infrastructure equipment. |
Applications
| Electronic Points of Sale | Printers and Peripherals |
|---|---|
Use Scenario: Interfacing a 3.3-V ARM-based payment terminal controller with legacy 5-V receipt printer and cash drawer modules. IC Role / Device Role / Timing Role: Bidirectional level-translating bus transceiver managing command/data flow between host and peripherals over parallel interface. Use Value: Eliminates need for discrete level shifters; 5.5-V input tolerance ensures reliable command reception from 5-V printer status lines. |
Use Scenario: Isolating and translating data between a 3.3-V SoC and 5-V stepper motor driver and paper sensor subsystems in multifunction printers. IC Role / Device Role / Timing Role: Dual 8-bit transceiver providing independent A→B and B→A paths for control and feedback signals. Use Value: Enables simultaneous bidirectional communication with sub-4-ns delay, preserving real-time responsiveness in print head positioning loops. |
| Motor Drives | Wireless Infrastructure |
Use Scenario: Connecting a 3.3-V FPGA-based motion controller to 5-V analog-to-digital converters and isolated gate drivers in servo amplifier boards. IC Role / Device Role / Timing Role: Bus isolator and voltage translator ensuring clean signal handoff between logic and power stages. Use Value: Ioff protection prevents latch-up during power sequencing; 125°C rating supports operation near heat-generating power modules. |
Use Scenario: Bridging baseband processor (3.3-V) and RF front-end ASIC (5-V) in small-cell base stations requiring deterministic latency. IC Role / Device Role / Timing Role: Low-jitter, high-drive-strength transceiver supporting burst-mode data exchange on parallel control buses. Use Value: ±24 mA drive capability ensures fast edge rates into 50-Ω traces; 4 ns tpd meets tight setup/hold timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | TSSOP-48 (DGG) package; 12.50 mm × 6.10 mm body; tape-and-reel (2000 pcs) | Better suited for automated SMT assembly; slightly smaller footprint than DL | Select for volume production with pick-and-place; verify thermal derating vs. DL's larger pad area. |
| SN74ALVC16245DL | Higher speed (tpd ≤ 3.2 ns at 3.3 V); 2.3-V to 3.6-V VCC only; same DL package | Targeted at ultra-low-latency applications where 1.65-V operation is unnecessary | Choose when maximum speed is critical and system VCC ≥ 2.3 V; not drop-in due to narrower voltage range. |
Compared with SN74LVC16245ADL, SN74LVC16245ADGGR offers identical electrical performance in a more compact, machine-friendly package, while SN74ALVC16245DL trades wider voltage flexibility for faster propagation-making the DL variant optimal for cost-sensitive, thermally demanding industrial designs requiring full 1.65–3.6-V compliance.
Availability
SN74LVC16245ADL is available at Aetrix Electronics and suitable for electronic points of sale, printers and peripherals, and motor drives requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant packaging.
Supply support for SN74LVC16245ADL 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 decades of leadership in logic IC design and industrial-grade reliability.
The SN74LVC16245ADL belongs to TI's Widebus™ family of high-speed, low-voltage CMOS transceivers, engineered specifically for robust bidirectional data bridging in mixed-voltage embedded systems.
FAQ
What is the maximum operating temperature for SN74LVC16245ADL?
The SN74LVC16245ADL is fully specified from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD78 and supported by thermal metrics including RθJA = 70.6°C/W for the DL package, making SN74LVC16245ADL suitable for under-hood automotive modules and industrial motor control enclosures where ambient heat exceeds 85°C.
Does SN74LVC16245ADL support 5-V input signals when powered from 3.3-V VCC?
Yes, SN74LVC16245ADL accepts input voltages up to 5.5 V regardless of VCC level (1.65–3.6 V). This is explicitly confirmed in the "Recommended Operating Conditions" table (VI = 0–5.5 V) and enables SN74LVC16245ADL to serve as a robust level translator in mixed-voltage systems such as connecting 3.3-V FPGAs to 5-V sensors or displays.
Can SN74LVC16245ADL be used as a single 16-bit transceiver or only as dual 8-bit units?
SN74LVC16245ADL can operate flexibly as either two independent 8-bit transceivers (using 1DIR/1OE and 2DIR/2OE separately) or as one unified 16-bit transceiver (by tying both DIR and OE pins together). The functional block diagram and truth table in the datasheet confirm this dual-mode capability, and SN74LVC16245ADL pinout supports both configurations without hardware modification.
What is the purpose of the Ioff feature in SN74LVC16245ADL?
The Ioff feature in SN74LVC16245ADL disables output drivers and limits off-state leakage to ±20 µA when VCC = 0 V. This prevents damaging current backflow during hot-swap events or partial power-down, allowing SN74LVC16245ADL to safely isolate buses in live-insertion systems like modular telecom line cards or field-replaceable I/O boards.
Is SN74LVC16245ADL pin-compatible with older SN74LVC16245 variants?
Yes, SN74LVC16245ADL maintains identical pinout, electrical behavior, and timing specifications as earlier revisions of the SN74LVC16245A series (e.g., SN74LVC16245ADLR). The "A" suffix denotes improved characterization across –40°C to +125°C, but SN74LVC16245ADL retains full mechanical and functional compatibility with legacy footprints and firmware.
SN74LVC16245ADL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Logic Type:
- Transceiver, 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
SN74LVC16245ADL FAQ
1.How can I place an order for SN74LVC16245ADL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16245ADL 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 SN74LVC16245ADL reliable?
The price and inventory of SN74LVC16245ADL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16245ADL is usually 5 days.
3.What payment methods are accepted for SN74LVC16245ADL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16245ADL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC16245ADL?
SN74LVC16245ADL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16245ADL 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 SN74LVC16245ADL?
For technical support, including SN74LVC16245ADL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16245ADL requirements.
6.How does Aetrix verify that SN74LVC16245ADL is sourced from the original manufacturer or authorized distributors?
All SN74LVC16245ADL 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 SN74LVC16245ADL meets industry standards.
7.What is the process for return or replacement of SN74LVC16245ADL?
All SN74LVC16245ADL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16245ADL, 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 SN74LVC16245ADL part is unused and in its original packaging.
Return procedure for SN74LVC16245ADL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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