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Texas Instruments 74LVTH162245ZQLR
- Part No.:
- 74LVTH162245ZQLR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
74LVTH162245ZQLR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,101
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Product details
Overview
74LVTH162245ZQLR from Texas Instruments is a 3.3-V ABT 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for mixed-mode signal operation (5-V I/O with 3.3-V VCC), supporting hot insertion via Ioff and power-up 3-state, and featuring integrated bus-hold on all data inputs. It operates across –55°C to 125°C and delivers <0.8 V typical output ground bounce at VCC = 3.3 V.
For engineers reviewing the 74LVTH162245ZQLR datasheet, 74LVTH162245ZQLR pinout, 74LVTH162245ZQLR application, or 74LVTH162245ZQLR equivalent, this device serves as a voltage-level translating bidirectional interface between 3.3-V logic domains and legacy 5-V buses in high-speed backplane, memory expansion, and industrial control systems - requiring precise timing, low noise, and robust hot-swap capability.
Technical Context
The 74LVTH162245ZQLR implements two independent 8-bit transceiver sections (A↔B), each controlled by dedicated DIR and OE inputs. Its ABT (Advanced BiCMOS Technology) architecture integrates 22-Ω series resistors on A-port outputs to suppress overshoot/undershoot without external termination.
It supports unregulated battery operation down to 2.7 V, features distributed VCC/GND pins to minimize switching noise, and uses flow-through pinout to simplify PCB layout. Bus-hold circuitry eliminates need for external pullup/pulldown resistors on unused inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - enables stable operation under unregulated battery supply or noisy rail conditions |
| I/O Voltage Tolerance | Up to 5.5 V on all inputs/outputs - allows direct interfacing with 5-V TTL systems without level shifters |
| A-Port Output Drive | ±12 mA - sufficient to drive standard TTL loads while maintaining signal integrity |
| B-Port Output Drive | ±24 mA (min) at VCC = 3 V - supports heavier capacitive loads on B-bus side |
| Propagation Delay | tPLH/tPHL ≤ 3.9 ns (VCC = 3.3 V, CL = 50 pF) - meets timing requirements for 100+ MHz bus operation |
| Bus-Hold Current | ±75 µA (min) - actively maintains valid logic state on floating inputs, preventing metastability |
| Power-Up 3-State | Active below 1.5 V VCC - prevents bus contention during power ramp-up/down sequences |
Pinout & Package
74LVTH162245ZQLR is housed in a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package (ZQL), measuring 7.0 mm × 4.5 mm × 0.9 mm, with 0.5-mm ball pitch and Pb-free finish. The package complies with JEDEC MO-164AC and supports reflow per Level-3 MSL rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: LOW = B→A, HIGH = A→B |
| 1OE, 2OE | Output enable input (per 8-bit section) | LOW enables outputs; HIGH forces both A/B ports into high-impedance isolation |
| 1A1–1A8, 2A1–2A8 | A-side data I/Os | Noninverting inputs/outputs for first and second 8-bit channels; include bus-hold |
| 1B1–1B8, 2B1–2B8 | B-side data I/Os | Noninverting inputs/outputs for corresponding B-bus channels; tolerate 5-V signals |
| VCC, GND | Power and ground terminals | Distributed across package (12 VCC, 12 GND balls) - reduces simultaneous switching noise |
| NC | No internal connection | Ball positions A1–A5, K2–K5 are unconnected - must be left unpopulated on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22-Ω series resistors on A-port outputs | Eliminates need for external termination, reducing BOM count and PCB area while controlling edge rates |
| Mixed-mode I/O compatibility | 5-V tolerant inputs/outputs with 3.3-V VCC - enables seamless interoperation between legacy and modern logic families |
| Hot-insertion support via Ioff and power-up 3-state | Prevents damaging current backflow and bus conflicts during live board insertion or removal |
| Active bus-hold on all data inputs | Maintains defined logic state on undriven or floating lines - removes dependency on external biasing components |
| Latch-up immunity >500 mA | Meets JESD17 requirement - ensures robustness against transient-induced latch-up in harsh environments |
Applications
| Industrial Backplane Interface | Memory Expansion Module |
|---|---|
Use Scenario: Interfacing a 3.3-V FPGA-based controller to a legacy 5-V parallel address/data bus in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage-translating transceiver managing data flow between processor and peripheral cards with precise direction and enable control. Use Value: Enables drop-in replacement of older 5-V transceivers without redesigning power or signal conditioning - preserves system timing margins via sub-4 ns propagation delay. |
Use Scenario: Adding external SRAM or Flash memory to a 3.3-V microcontroller system where memory ICs require 5-V I/O tolerance. IC Role / Device Role / Timing Role: Isolating and translating control/address/data signals between MCU and memory, with bus-hold preventing glitches during reset or sleep transitions. Use Value: Eliminates need for discrete level shifters and pull-up networks - reduces component count and improves reliability in space-constrained embedded modules. |
| Automotive Diagnostic Interface | Test Equipment Data Bridge |
Use Scenario: Connecting a 3.3-V diagnostic ECU to legacy 5-V CAN or LIN subsystems during vehicle service and calibration. IC Role / Device Role / Timing Role: Hot-pluggable bus isolator ensuring safe communication handshaking during live vehicle diagnostics. Use Value: Prevents bus contention and ground bounce during probe insertion - critical for meeting ISO 11898-2 EMC requirements in automotive test environments. |
Use Scenario: Bridging high-speed digital test patterns between 3.3-V pattern generators and 5-V DUTs in automated test equipment (ATE). IC Role / Device Role / Timing Role: Low-skew, bidirectional signal repeater with deterministic enable/disable timing for synchronized stimulus/response capture. Use Value: Delivers <0.5 ns skew between channels and <0.8 V ground bounce - ensures signal fidelity at 100+ MHz test frequencies without added jitter. |
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 |
|---|---|---|---|
| SN74LVTH162245DLR | SSOP-48 package (15.4 mm × 7.5 mm); higher θJA (63°C/W); same electrical specs and pinout | Suitable for prototyping or lower-density boards where thermal performance is less critical and manual assembly is preferred | Select when board real estate permits larger footprint and hand-soldering is required; not suitable for high-density or thermally constrained designs |
| SN74LVTH162245DGGR | TSSOP-48 package (12.5 mm × 6.1 mm); θJA = 70°C/W; identical logic function and AC/DC parameters | Preferred for compact consumer electronics where ZQL's 7.0 mm × 4.5 mm size is unnecessary but fine-pitch SMT is acceptable | Choose for cost-sensitive volume production where ZQL's ultra-compact BGA is overqualified and TSSOP offers better test accessibility |
Compared with SN74LVTH162245DLR and SN74LVTH162245DGGR, the 74LVTH162245ZQLR provides the smallest footprint (31.5 mm² vs. 116 mm² and 76 mm²), lowest thermal resistance (42°C/W), and highest I/O density - making it optimal for space- and thermal-critical industrial and automotive modules requiring long-term reliability under –55°C to 125°C operation.
Availability
74LVTH162245ZQLR is available at Aetrix Electronics and suitable for industrial backplane interfaces, automotive diagnostic gateways, memory expansion modules, and test equipment data bridges requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74LVTH162245ZQLR 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 logic solutions, with decades of experience delivering high-reliability interface ICs for industrial, automotive, and aerospace applications.
The LVTH162245 family belongs to TI's Widebus™ portfolio of advanced bus-interface devices, engineered specifically for low-voltage, high-speed bidirectional data transfer in mixed-voltage systems requiring robust hot-swap, noise immunity, and long-term stability.
FAQ
What is the operating temperature range for the 74LVTH162245ZQLR?
The 74LVTH162245ZQLR is rated for operation from –55°C to +125°C, qualifying it for use in extended-temperature industrial, automotive, and defense applications. This range is confirmed in the TI SCBS260Q datasheet under Recommended Operating Conditions and applies specifically to the ZQL (VFBGA) package variant.
Does the 74LVTH162245ZQLR support hot insertion?
Yes, the 74LVTH162245ZQLR supports hot insertion through two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent backflow current, and power-up 3-state holds outputs in high-impedance until VCC exceeds 1.5 V - both explicitly documented in the TI datasheet Section "DESCRIPTION/ORDERING INFORMATION (CONTINUED)".
What is the purpose of the bus-hold feature on the 74LVTH162245ZQLR?
The bus-hold feature on the 74LVTH162245ZQLR actively maintains a valid logic state (HIGH or LOW) on unused or undriven A- and B-port inputs, eliminating the need for external pullup or pulldown resistors. Per the datasheet, it draws ±75 µA minimum dynamic current and is implemented on all data I/Os - reducing BOM cost and improving noise immunity.
Can the 74LVTH162245ZQLR interface directly with 5-V logic systems?
Yes, the 74LVTH162245ZQLR accepts and drives 5-V signals on all A- and B-port I/Os while operating from a 3.3-V VCC. Its absolute maximum input voltage is 7 V, and recommended VI is 5.5 V - enabling direct connection to TTL and CMOS 5-V buses without external level-shifting circuitry, as verified in the "Recommended Operating Conditions" table.
What package type and dimensions does the 74LVTH162245ZQLR use?
The 74LVTH162245ZQLR uses a 56-ball VFBGA package (ZQL) with 0.5-mm pitch, measuring 7.0 mm × 4.5 mm × 0.9 mm. Pin assignments follow JEDEC MO-164AC, and mechanical drawings confirm ball layout including NC positions (A1–A5, K2–K5). This information is sourced from TI's official package outline DGG0048A and ZQL-specific terminal assignment tables.
74LVTH162245ZQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- 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)
74LVTH162245ZQLR FAQ
1.How can I place an order for 74LVTH162245ZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH162245ZQLR 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 74LVTH162245ZQLR reliable?
The price and inventory of 74LVTH162245ZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH162245ZQLR is usually 5 days.
3.What payment methods are accepted for 74LVTH162245ZQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH162245ZQLR transactions.
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4.How is shipping managed for 74LVTH162245ZQLR?
74LVTH162245ZQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH162245ZQLR 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 74LVTH162245ZQLR?
For technical support, including 74LVTH162245ZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH162245ZQLR requirements.
6.How does Aetrix verify that 74LVTH162245ZQLR is sourced from the original manufacturer or authorized distributors?
All 74LVTH162245ZQLR 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 74LVTH162245ZQLR meets industry standards.
7.What is the process for return or replacement of 74LVTH162245ZQLR?
All 74LVTH162245ZQLR units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH162245ZQLR, 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 74LVTH162245ZQLR part is unused and in its original packaging.
Return procedure for 74LVTH162245ZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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