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Texas Instruments SN74LVT162245AZQLR
- Part No.:
- SN74LVT162245AZQLR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVT162245AZQLR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,317
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Product details
Overview
SN74LVT162245AZQLR 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 3.3-V and 5-V buses. It features 56-ball VFBGA (ZQL) packaging, ±100 µA Ioff at VCC = 0 V, and supports hot insertion via power-up 3-state and Ioff circuitry. It operates across –55°C to 125°C and delivers 48 mA low-level output drive on B-port.
For engineers reviewing the SN74LVT162245AZQLR datasheet, SN74LVT162245AZQLR pinout, SN74LVT162245AZQLR application, or SN74LVT162245AZQLR equivalent, key selection considerations include mixed-mode voltage tolerance (5-V inputs/outputs with 3.3-V VCC), distributed VCC/GND layout optimization, flow-through architecture for PCB routing, and guaranteed high-impedance state during power ramping below 1.5 V.
Technical Context
This device implements dual independent 8-bit transceiver sections, each controlled by dedicated DIR (direction) and OE (output enable) signals. Logic states on DIR determine data flow direction: DIR = L enables B→A transmission; DIR = H enables A→B transmission. OE = H forces both ports into high-impedance isolation regardless of DIR state.
The A-port outputs integrate 22-Ω series resistors to suppress overshoot/undershoot without external components, while B-port outputs support higher drive strength (up to 64 mA sink). Input circuits remain active at all times-floating data lines must be terminated to avoid excess ICC and ICCZ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated battery operation down to 2.7 V with full functionality. |
| IOL (B-port) | 64 mA max - enables direct interface to 5-V TTL loads without level-shifting buffers. |
| tPLH/tPHL | 2.2 ns to 3.9 ns @ VCC = 3.3 V - ensures sub-4 ns propagation delay for high-speed bus bridging. |
| Ioff | ±100 µA @ VCC = 0 V - prevents backflow current during hot-insertion or partial power-down. |
| VI Max | 5.5 V - allows safe 5-V signal input even when VCC = 3.3 V, enabling mixed-voltage system interoperability. |
| Operating Temp | –55°C to 125°C - qualified for extended industrial and automotive under-hood applications. |
| Package | 56-ball VFBGA (ZQL) - 5.5 mm × 5.5 mm footprint with 0.5-mm pitch, optimized for space-constrained embedded systems. |
Pinout & Package
SN74LVT162245AZQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated ZQL, with 0.5-mm ball pitch and 5.5 mm × 5.5 mm body size. Pin assignments follow JEDEC MO-220 standard layout with corner balls omitted per manufacturer marking convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (active-HI) | Selects data flow direction per 8-bit section: DIR = H → A→B; DIR = L → B→A. |
| 1OE, 2OE | Output enable input (active-LOW) | Disables both A- and B-port outputs simultaneously into high-impedance state when HIGH. |
| A1–A8, B1–B8 (x2) | Bidirectional data I/O terminals | Each port supports TTL-compatible logic levels; A-port includes integrated 22-Ω series termination. |
| VCC (x8) | Power supply | Distributed VCC pins minimize switching noise and improve PSRR in high-frequency operation. |
| GND (x8) | Ground reference | Distributed ground pins reduce ground bounce (VOLP < 0.8 V typical) and enhance signal integrity. |
| NC (x8) | No internal connection | Unbonded pads; must be left unconnected on PCB - no routing or stitching required. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage interface | Accepts 5-V inputs and drives 5-V loads while powered from 3.3-V VCC, eliminating external level shifters. |
| Integrated 22-Ω A-port series resistors | Reduces signal overshoot/undershoot on A-side traces without requiring discrete termination components. |
| Hot-insertion support | Ioff and power-up 3-state ensure zero-current backflow and conflict-free insertion into live backplanes. |
| Flow-through pin architecture | Input and output pins aligned on opposite sides of package to simplify layer routing and reduce trace crossovers. |
| Distributed power/ground network | Eight VCC and eight GND balls minimize simultaneous switching noise and improve EMI performance. |
Applications
| Industrial Backplane Interface | Automotive ADAS Sensor Hub |
|---|---|
|
Use Scenario: Bridging legacy 5-V CAN/LIN controller modules to new 3.3-V microcontroller subsystems in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant bus transceiver enabling protocol-transparent data exchange between mismatched voltage domains. Use Value: Eliminates need for discrete level translators while maintaining <4 ns propagation delay and supporting –55°C cold-cranking operation. |
Use Scenario: Interfacing radar sensor raw data streams (5-V LVDS-compatible signaling) to 3.3-V SoC image processing pipelines in forward collision warning systems. IC Role / Device Role / Timing Role: Low-latency, high-drive-strength bus buffer isolating noisy sensor I/O from sensitive digital core logic. Use Value: Delivers 64 mA B-port sink capability and <0.8 V ground bounce to preserve signal fidelity at 100+ Mbps burst rates. |
| Avionics Data Concentrator | Test Equipment Signal Conditioning |
|
Use Scenario: Consolidating ARINC 429 receiver outputs (5-V logic) into a centralized 3.3-V FPGA-based data acquisition unit aboard commercial aircraft. IC Role / Device Role / Timing Role: Radiation-tolerant (latch-up >100 mA per JESD78 Class II) bus translator ensuring deterministic timing under EMI stress. Use Value: Maintains functional safety compliance via guaranteed high-Z state during power ramping and Ioff-enabled hot-swap capability. |
Use Scenario: Adapting legacy 5-V GPIB or parallel port instrumentation signals to modern 3.3-V USB-to-parallel bridge controllers in automated test systems. IC Role / Device Role / Timing Role: Reconfigurable direction-controlled transceiver allowing dynamic host/peripheral role switching without hardware modification. Use Value: Enables software-defined bus polarity via DIR pin control, reducing test fixture complexity and improving reusability across DUT families. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC162245ADLR | Lower drive strength (24 mA B-port sink), 48-pin SSOP package, rated only to 85°C. | Suitable for commercial-grade board-to-board interconnect where thermal margin and voltage tolerance are less critical. | Choose when cost sensitivity outweighs extended temperature and mixed-voltage requirements. |
| SN74AVC162245GRDR | 2.5-V/3.3-V dual-supply operation, 56-ball GRD package, supports 125°C but lacks Ioff hot-insertion guarantee. | Better for ultra-low-voltage systems needing AVT logic thresholds, but requires external hot-swap protection circuitry. | Prefer when interfacing with 2.5-V FPGAs or ASICs and full hot-swap compliance is not mandatory. |
Compared with SN74LVC162245ADLR and SN74AVC162245GRDR, SN74LVT162245AZQLR uniquely combines 5-V tolerant I/O, –55°C to 125°C operation, integrated hot-insertion support, and compact VFBGA packaging - making it the only option qualified for harsh-environment mixed-voltage bus bridging without design compromises.
Availability
SN74LVT162245AZQLR is available at Aetrix Electronics and suitable for industrial automation interfaces, avionics data concentrators, and automotive ADAS sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVT162245AZQLR 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 90 years of innovation in high-reliability electronic components.
The SN74LVT162245AZQLR belongs to TI's Widebus™ family of ABT logic devices, engineered specifically for robust, low-noise bidirectional bus interfacing in mixed-voltage industrial and transportation systems.
FAQ
What is the maximum operating temperature range for SN74LVT162245AZQLR?
The SN74LVT162245AZQLR is fully specified from –55°C to +125°C, meeting extended industrial and automotive under-hood requirements. This rating applies across all electrical parameters including propagation delay, output drive, and Ioff leakage, as validated per TI's SCBS714D datasheet revision November 2006.
Does SN74LVT162245AZQLR support hot-plug insertion into live 5-V backplanes?
Yes, SN74LVT162245AZQLR supports hot insertion via two complementary features: Ioff circuitry limits reverse current to ±100 µA when VCC = 0 V, and power-up 3-state ensures outputs remain high-impedance until VCC exceeds 1.5 V - preventing bus contention during live insertion.
Can SN74LVT162245AZQLR interface directly between 3.3-V and 5-V logic without external components?
Yes, SN74LVT162245AZQLR accepts 5-V inputs and drives 5-V loads while operating from a 3.3-V VCC, with VI max = 5.5 V and VO compatibility up to 5-V. Its A-port includes built-in 22-Ω series resistors, eliminating external termination for clean signal edges.
What is the propagation delay of SN74LVT162245AZQLR at 3.3-V supply?
At VCC = 3.3 V ±0.3 V and CL = 50 pF, SN74LVT162245AZQLR achieves tPLH/tPHL of 2.2 ns to 3.9 ns (B→A) and 2.8 ns to 4.6 ns (A→B), per the switching characteristics table in SCBS714D. These values are guaranteed across –55°C to 125°C.
Is SN74LVT162245AZQLR pin-compatible with other packages in the LVT162245A family?
No - SN74LVT162245AZQLR uses a 56-ball ZQL VFBGA package with unique pinout and ball map. It is not pin-compatible with the 48-pin DGG (TSSOP) or DL (SSOP) variants, nor with the 54-ball GRD/ZRD FBGA versions. Layout redesign is required when migrating between these packages.
SN74LVT162245AZQLR 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:
- 12mA, 12mA; 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)
SN74LVT162245AZQLR FAQ
1.How can I place an order for SN74LVT162245AZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162245AZQLR 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 SN74LVT162245AZQLR reliable?
The price and inventory of SN74LVT162245AZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162245AZQLR is usually 5 days.
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Once your SN74LVT162245AZQLR 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 SN74LVT162245AZQLR?
For technical support, including SN74LVT162245AZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162245AZQLR requirements.
6.How does Aetrix verify that SN74LVT162245AZQLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162245AZQLR 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 SN74LVT162245AZQLR meets industry standards.
7.What is the process for return or replacement of SN74LVT162245AZQLR?
All SN74LVT162245AZQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162245AZQLR, 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 SN74LVT162245AZQLR part is unused and in its original packaging.
Return procedure for SN74LVT162245AZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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