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Texas Instruments SN74LVC863APWT
- Part No.:
- SN74LVC863APWT
- Manufacturer:
- Texas Instruments
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVC863APWT.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,912
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Product details
Overview
SN74LVC863APWT from Texas Instruments is a 9-bit bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between A and B buses in 1.65-V to 3.6-V systems. It supports mixed-mode operation (5-V inputs with 3.3-V VCC), features Ioff partial-power-down protection, and delivers 6.1 ns max propagation delay at 3.3 V - used in voltage-level translation and bus isolation in industrial control backplanes.
For engineers reviewing the SN74LVC863APWT datasheet, SN74LVC863APWT pinout, SN74LVC863APWT application, or SN74LVC863APWT equivalent, key selection criteria include its dual-directional 9-bit channel count, TVSOP-24 package footprint, 3.6-V absolute maximum input tolerance, Ioff-enabled power-down safety, and guaranteed 3-state output behavior during power sequencing.
Technical Context
This device implements independent OEAB and OEBA control pairs per direction, enabling simultaneous A→B and B→A data flow or full isolation via high-impedance outputs. Its logic diagram confirms noninverting signal path with separate enable terminals per bus side.
It uses LVC CMOS technology with rail-to-rail input voltage acceptance (0–5.5 V), specified for operation across –40°C to +85°C, and includes robust ESD protection (2000-V HBM, 200-V MM, 1000-V CDM) and latch-up immunity (>250 mA per JESD 17).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables direct integration into modern low-voltage logic domains without level-shifting circuitry. |
| Input Voltage Tolerance | Up to 5.5 V - allows safe interfacing with legacy 5-V peripherals while powered from 3.3-V rails. |
| Max Propagation Delay | 6.1 ns at VCC = 3.3 V - supports >100 MHz bus timing margins in high-speed digital backplane designs. |
| Ioff Current | ±10 µA at VI/VO = 5.5 V - prevents damaging backflow current during partial power-down, critical for hot-swap systems. |
| Output Drive Strength | ±24 mA at VCC = 3 V - sufficient to drive standard 50-Ω transmission lines or fan-out to ≥10 LVC loads. |
| ESD Rating | 2000-V HBM - exceeds JEDEC JESD22-A114 requirement, reducing need for external protection in board-level ESD zones. |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient environments including factory automation and motor control enclosures. |
Pinout & Package
SN74LVC863APWT is housed in a 24-pin TVSOP (DGV) package, 4.4 mm × 6.6 mm body size, 1.2 mm max height, 0.4 mm pitch, with pin 1 index area marked on top-side marking "LC863A".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 11, 13, 14, 2, 23 | OEAB1, OEAB2, OEBA1, OEBA2, A1–A9, B1–B9 | Directional output-enable controls and bidirectional data terminals - OEABx enables A→B flow; OEBAx enables B→A flow. |
| 12 | GND | Ground reference for all internal logic and I/O structures; must be low-impedance connection to minimize ground bounce. |
| 24 | VCC | Primary supply rail (1.65–3.6 V); decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin. |
| A1–A9 (pins 3–10, 15) | A-Bus I/O | 9-bit port connected to local subsystem; accepts 0–5.5 V inputs regardless of VCC level. |
| B1–B9 (pins 16–22, 15) | B-Bus I/O | 9-bit port connected to remote subsystem; outputs driven to VCC or GND with 3-state capability. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC enables seamless bridging between legacy 5-V logic and modern low-voltage buses. |
| Ioff partial-power-down support | Prevents current backflow when VCC = 0 V, allowing safe insertion/removal in live-backplane applications. |
| High-impedance state during power sequencing | Outputs remain Hi-Z at power-up/down - eliminates bus contention and glitch propagation in multi-rail systems. |
| Low ground bounce (VOLP < 0.8 V) | Reduces noise coupling into adjacent signals and improves signal integrity in dense PCB layouts. |
| Latch-up immunity > 250 mA | Ensures robust operation under transient overvoltage or ESD events without destructive latch-up failure. |
Applications
| Industrial Backplane Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating CAN/LIN microcontroller I/O from 5-V sensor clusters in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage translator and bus isolator between 3.3-V MCU and 5-V analog front-end ASICs. Use Value: Eliminates discrete level-shifters and reduces BOM count by consolidating 9-channel translation with integrated Ioff safety. |
Use Scenario: Interfacing infotainment SoC GPIO banks with legacy 5-V lighting driver ICs in head unit assemblies. IC Role / Device Role / Timing Role: Synchronous bus transceiver managing LED dimming command traffic between 3.3-V processor and 5-V PWM drivers. Use Value: Enables clean hot-plug capability during module replacement due to guaranteed Hi-Z state during VCC ramp. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
|
Use Scenario: Routing high-resolution ADC data streams from 5-V analog acquisition modules to 3.3-V FPGA processing units. IC Role / Device Role / Timing Role: Low-skew, 9-bit parallel data bridge with sub-7 ns tpd ensuring deterministic sampling alignment. Use Value: Maintains signal fidelity across voltage domains without introducing jitter or metastability in time-critical sampling paths. |
Use Scenario: Configuring multi-channel relay matrices in automated test equipment using 3.3-V controller and 5-V actuator drivers. IC Role / Device Role / Timing Role: Direction-controlled bus switch enabling bidirectional status reporting and command issuance over shared wiring harnesses. Use Value: Reduces connector pin count by 50% versus unidirectional solutions while preserving full diagnostic visibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 9-bit bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC863APWR | TSSOP-24 (PW) package, 16.4 mm reel width, 6.95 mm A0 cavity length - larger footprint than DGV. | Same electrical specs but less space-constrained layout; suitable where thermal margin > mechanical density is prioritized. | Select SN74LVC863APWR if PCB assembly uses standard TSSOP tooling and 0.65-mm pitch is acceptable. |
| SN74LVC863ADGVR | Identical TVSOP-24 (DGV) package, same 0.4-mm pitch and 4.4 mm × 6.6 mm dimensions - pin-compatible drop-in. | No functional difference; differs only in reel packaging (2000 pcs vs. 250 pcs) and part marking ("LC863A" vs. "LC863A" with variant suffix). | SN74LVC863ADGVR is a volume-optimized alternative with identical fit, form, and function - ideal for high-throughput production. |
Compared with SN74LVC863APWR and SN74LVC863ADGVR, SN74LVC863APWT offers identical electrical performance and TVSOP-24 mechanical compatibility but is supplied in a 250-piece tape-and-reel configuration optimized for prototyping, NPI validation, and low-volume qualification runs.
Availability
SN74LVC863APWT is available at Aetrix Electronics and suitable for industrial backplane interfaces, automotive body control modules, medical diagnostic data routing, and test instrumentation requiring stable component supply with rapid lead times.
Supply support for SN74LVC863APWT 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 connectivity technologies, with over 50 years of innovation in high-reliability logic and interface solutions.
The SN74LVC863A product line was developed to address voltage-domain bridging in mixed-supply systems, targeting industrial automation, automotive electronics, and medical equipment where interoperability between legacy and next-generation logic families is essential.
FAQ
What is the maximum input voltage rating for SN74LVC863APWT?
The SN74LVC863APWT supports input voltages up to 5.5 V across all pins, independent of VCC level - enabling safe interfacing with 5-V logic while operating from 1.65–3.6-V supplies. This specification is verified per Absolute Maximum Ratings table in the official TI datasheet SCAS310J.
Does SN74LVC863APWT support partial power-down operation?
Yes, SN74LVC863APWT includes Ioff circuitry that disables outputs and limits leakage to ±10 µA when VCC = 0 V or VI/VO = 5.5 V, preventing damaging current backflow during hot-swap or partial system shutdown - confirmed in Electrical Characteristics section of TI datasheet SCAS310J.
What is the propagation delay of SN74LVC863APWT at 3.3 V?
SN74LVC863APWT has a maximum propagation delay (tpd) of 6.1 ns at VCC = 3.3 V and TA = 25°C, measured from enable or data input to valid output transition - specified in Switching Characteristics table of TI datasheet SCAS310J.
Is SN74LVC863APWT pin-compatible with other packages in the SN74LVC863A family?
Yes, SN74LVC863APWT shares identical pinout and signal assignment with all SN74LVC863A variants (e.g., SN74LVC863ADGVR, SN74LVC863APWR), as confirmed by TI's standardized logic diagram and top-view pin maps across DW, PW, DGV, DB, and NS packages in datasheet SCAS310J.
What package type and dimensions does SN74LVC863APWT use?
SN74LVC863APWT uses the TVSOP-24 (DGV) package: 4.4 mm × 6.6 mm body, 1.2 mm max height, 0.4 mm lead pitch, with pin 1 index area - documented in TI's DGV0024A package outline drawing and verified in PACKAGE OPTION ADDENDUM dated 11-Nov-2025.
SN74LVC863APWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 9
- 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:
- 24-TSSOP
SN74LVC863APWT FAQ
1.How can I place an order for SN74LVC863APWT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC863APWT 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 SN74LVC863APWT reliable?
The price and inventory of SN74LVC863APWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC863APWT is usually 5 days.
3.What payment methods are accepted for SN74LVC863APWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC863APWT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC863APWT?
SN74LVC863APWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC863APWT 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 SN74LVC863APWT?
For technical support, including SN74LVC863APWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC863APWT requirements.
6.How does Aetrix verify that SN74LVC863APWT is sourced from the original manufacturer or authorized distributors?
All SN74LVC863APWT 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 SN74LVC863APWT meets industry standards.
7.What is the process for return or replacement of SN74LVC863APWT?
All SN74LVC863APWT units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC863APWT, 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 SN74LVC863APWT part is unused and in its original packaging.
Return procedure for SN74LVC863APWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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