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Texas Instruments SN74LVT16245BGQLR
- Part No.:
- SN74LVT16245BGQLR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVT16245BGQLR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVT16245BGQLR from Texas Instruments is a 3.3-V ABT 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between mixed-voltage buses (3.3-V VCC with 5-V tolerant I/O). It features 56-ball VFBGA (GQL) packaging, ±64 mA output drive, 3.3 ns typical propagation delay at 3.3 V, and supports hot insertion via Ioff and power-up 3-state logic. It is used in high-speed backplane interfaces and FPGA-to-ASIC interconnects.
For engineers reviewing the SN74LVT16245BGQLR datasheet, SN74LVT16245BGQLR pinout, SN74LVT16245BGQLR application, or SN74LVT16245BGQLR equivalent, key selection considerations include its 3.3-V ABT process enabling TTL-level compatibility, distributed VCC/GND pins for noise suppression, flow-through pinout for optimized PCB routing, and guaranteed operation down to 2.7 V for battery-backed systems.
Technical Context
The SN74LVT16245BGQLR implements two independent 8-bit transceiver sections (A↔B), each controlled by dedicated DIR (direction) and OE (output enable) inputs. Its Advanced BiCMOS Technology (ABT) delivers low static power dissipation while maintaining TTL-compatible input thresholds and 5-V-tolerant I/O under 3.3-V supply.
Each port supports simultaneous input sampling regardless of output state, and the device enters high-impedance during power-up/down when VCC is below 1.5 V. Ioff circuitry actively disables outputs when VCC = 0 V, preventing backflow current in hot-swap scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7 V to 3.6 V - Enables stable operation across unregulated Li-ion battery discharge profiles. |
| IOL / IOH Drive | 64 mA / –32 mA - Sufficient to directly drive 50-Ω transmission lines or multiple TTL loads without external buffers. |
| tPLH / tPHL | 3.3 ns typical at VCC = 3.3 V - Supports >150 MHz data rates in point-to-point or lightly loaded bus topologies. |
| VI Input Voltage | 0 V to 5.5 V - Allows direct interfacing with legacy 5-V logic without level shifters. |
| IOZPU / IOZPD | ±100 µA - Ensures reliable high-impedance state during power sequencing, eliminating bus contention risks. |
| θJA Thermal Impedance | 42 °C/W - Enables sustained operation at full drive strength in compact, thermally constrained layouts. |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - Meets industrial-grade robustness requirements for board-level handling and field deployment. |
Pinout & Package
SN74LVT16245BGQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package with 0.5-mm pitch, JEDEC MO-194 compliant, measuring 7.0 mm × 4.5 mm × 1.0 mm max height. Pin 1 is located at corner A1 (top-left, marked by chamfered corner per TI mechanical drawing MTSS003D).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (active-HIGH) | Determines data flow direction per 8-bit section: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE | Output enable input (active-LOW) | Disables both ports' outputs to high-impedance when HIGH; enables when LOW. |
| 1A1–1A8, 2A1–2A8 | A-port data I/O | Input/output terminals for first/second 8-bit bus segment; always active (no internal tri-state on input path). |
| 1B1–1B8, 2B1–2B8 | B-port data I/O | Input/output terminals for mirrored 8-bit bus segment; electrically identical to A-port. |
| VCC (12×) | Power supply | Distributed across package to minimize simultaneous switching noise and IR drop in high-speed operation. |
| GND (12×) | Ground reference | Strategically placed adjacent to VCC balls to form local decoupling loops and reduce ground bounce (VOLP < 0.8 V). |
| NC (8×) | No internal connection | Unbonded pads - must be left unconnected; not usable as thermal pads or test points. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant I/O with 3.3-V VCC eliminates need for external level translators in 3.3/5-V system boundaries. |
| Flow-through architecture | Input and output pins arranged on opposite sides of package - reduces trace crossovers and improves signal integrity in dense layouts. |
| Hot-insertion support | Ioff and power-up 3-state ensure zero current backflow and no bus conflict during live card insertion/removal. |
| Distributed VCC/GND pins | 12 VCC + 12 GND balls minimize high-frequency impedance and suppress ground bounce below 0.8 V (typical). |
| Latch-up immunity | >100 mA per JESD 78 Class II - guarantees robust operation in noisy industrial environments with ESD or surge events. |
Applications
| High-Speed Backplane Interface | FPGA-to-ASIC Data Bridge |
|---|---|
|
Use Scenario: Bidirectional data exchange between 3.3-V FPGA I/O banks and legacy 5-V ASIC peripherals across a 16-bit parallel bus on a multi-layer backplane. IC Role / Device Role / Timing Role: Level-shifting transceiver managing direction and output enable timing to prevent bus contention during read/write handshaking. Use Value: Eliminates discrete level shifters and reduces BOM count by 16 components while maintaining <3.5 ns propagation delay for synchronous 100+ MHz transfers. |
Use Scenario: Interfacing a Xilinx Artix-7 FPGA's bank-14 (3.3-V LVTTL) to a TI C66x DSP's EMIF (5-V tolerant) in a radar signal processing module. IC Role / Device Role / Timing Role: Dual-octal transceiver providing isolated direction control per byte lane and synchronized 3-state gating for burst-mode memory access. Use Value: Enables clean 16-bit wide data bursts with sub-4 ns skew across all lanes, verified via TI's SCBS715E timing model under 50-pF load conditions. |
| Industrial PLC I/O Expansion | Automotive ADAS Sensor Hub |
|
Use Scenario: Extending the data bus of a Cortex-M7-based controller to remote I/O modules over long traces (>15 cm) in a factory automation rack. IC Role / Device Role / Timing Role: Bus repeater with active drive strength to compensate for trace capacitance-induced rise/fall time degradation. Use Value: Delivers 64 mA sink current to maintain 1 V/ns edge rates across 20-cm FR-4 traces, reducing bit error rate in noisy 24-V DC plant environments. |
Use Scenario: Aggregating camera and radar sensor data streams into a central domain controller using a 3.3-V MIPI-CSI2 bridge chip requiring 5-V-compatible configuration registers. IC Role / Device Role / Timing Role: Configuration bus translator enabling safe read/write access to legacy 5-V sensor registers from 3.3-V host logic. Use Value: Provides guaranteed 0.8 V noise margin on inputs and 2.0 V VOH at –32 mA, meeting ISO 11898-2 EMC immunity requirements for automotive infotainment subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lower drive (24 mA), 1.65–3.6 V VCC range, TSSOP-48 package | Not suitable for 5-V-tolerant interfaces; requires external level shifting for mixed-voltage systems | Select only if operating exclusively at 1.8/2.5/3.3 V and cost/size constraints favor TSSOP over VFBGA |
| SN74ALVC16245DGGR | Higher speed (2.1 ns typ), same VCC range, but no 5-V tolerance - absolute max VI = 4.6 V | Cannot interface directly to 5-V buses; risk of damage if connected to legacy 5-V peripherals | Choose only for pure 3.3-V systems demanding minimal propagation delay and lower ICC (1.5 mA typical) |
Compared with SN74LVC16245ADGGR and SN74ALVC16245DGGR, the SN74LVT16245BGQLR uniquely combines 5-V I/O tolerance, 64-mA drive, and VFBGA footprint - making it the sole option for space-constrained, mixed-voltage, high-drive industrial backplanes.
Availability
SN74LVT16245BGQLR is available at Aetrix Electronics and suitable for high-speed backplane interfaces, FPGA-to-ASIC bridging, industrial PLC I/O expansion, and automotive ADAS sensor hubs requiring stable component supply across extended temperature and mixed-voltage operation.
Supply support for SN74LVT16245BGQLR 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 SN74LVT16245BGQLR belongs to TI's Widebus™ family of advanced bus interface devices, engineered specifically for high-speed, low-noise, mixed-voltage communication in industrial, telecom, and automotive control systems.
FAQ
What is the maximum operating temperature range for the SN74LVT16245BGQLR?
The SN74LVT16245BGQLR is rated for operation from –40°C to +85°C ambient temperature, as confirmed in TI's SCBS715E datasheet Section "Recommended Operating Conditions." This range applies to commercial and industrial applications; the part is not qualified for extended temperature (–55°C to +125°C) operation like the SN54LVT16245B variant. Thermal derating is required above 70°C when driving full 64 mA loads due to θJA = 42 °C/W.
Does the SN74LVT16245BGQLR support true 5-V input tolerance?
Yes, the SN74LVT16245BGQLR supports input voltages up to 5.5 V regardless of VCC level, as specified in the "Absolute Maximum Ratings" table (VI = –0.5 V to 7 V) and verified in electrical characteristics (VI = 5.5 V, II ≤ 20 µA). This allows direct connection to 5-V logic without external level shifters, a defining feature of TI's LVT-series ABT technology.
Can the SN74LVT16245BGQLR be used in hot-swap applications?
Yes, the SN74LVT16245BGQLR is explicitly designed for hot insertion, supported by two key features: Ioff circuitry that disables outputs when VCC = 0 V (preventing backflow current), and power-up 3-state logic that holds outputs in high-impedance during power ramp-up. Both are validated per JEDEC JESD78 latch-up testing and documented in the "Features" and "Description" sections of SCBS715E.
What is the ball pitch and package footprint of the SN74LVT16245BGQLR?
The SN74LVT16245BGQLR uses a 56-ball VFBGA package with 0.5-mm ball pitch, 7.0 mm × 4.5 mm body size, and maximum height of 1.0 mm. Mechanical dimensions are defined in TI's MTSS003D drawing, and land pattern recommendations follow IPC-7351 for 0.3-mm solder mask defined pads with 0.27-mm stencil apertures.
How does the flow-through pinout of the SN74LVT16245BGQLR improve PCB layout?
The SN74LVT16245BGQLR's flow-through architecture places A-port signals on one side and B-port signals on the opposite side, enabling straight-line trace routing without layer changes or vias between transceiver and connected ICs. This reduces crosstalk, maintains consistent characteristic impedance, and cuts layout time by ~30% compared to traditional "folded" pinouts - a benefit emphasized in TI's application guidance for high-speed bus design.
SN74LVT16245BGQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
SN74LVT16245BGQLR FAQ
1.How can I place an order for SN74LVT16245BGQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT16245BGQLR 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 SN74LVT16245BGQLR reliable?
The price and inventory of SN74LVT16245BGQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT16245BGQLR is usually 5 days.
3.What payment methods are accepted for SN74LVT16245BGQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVT16245BGQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVT16245BGQLR?
SN74LVT16245BGQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT16245BGQLR 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 SN74LVT16245BGQLR?
For technical support, including SN74LVT16245BGQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT16245BGQLR requirements.
6.How does Aetrix verify that SN74LVT16245BGQLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT16245BGQLR 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 SN74LVT16245BGQLR meets industry standards.
7.What is the process for return or replacement of SN74LVT16245BGQLR?
All SN74LVT16245BGQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT16245BGQLR, 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 SN74LVT16245BGQLR part is unused and in its original packaging.
Return procedure for SN74LVT16245BGQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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