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Texas Instruments SN74LVT162245DL
- Part No.:
- SN74LVT162245DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162245DL.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,793
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Product details
Overview
SN74LVT162245DL 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 two 8-bit buses. It supports mixed-mode operation (5-V inputs/outputs with 3.3-V VCC), delivers ±12 mA A-port and ±64 mA B-port drive, and features integrated 22-Ω series output resistors to suppress overshoot/undershoot in high-speed PCB layouts.
For engineers reviewing the SN74LVT162245DL datasheet, SN74LVT162245DL pinout, SN74LVT162245DL application, or SN74LVT162245DL equivalent, key selection considerations include its hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND pins for noise reduction, flow-through pinout for optimized routing, and guaranteed operation down to 2.7 V for battery-powered systems.
Technical Context
The SN74LVT162245DL implements dual independent 8-bit transceiver channels controlled by separate DIR and OE signals per side, enabling flexible direction control (A→B or B→A) or full isolation. Its ABT logic family uses advanced bipolar-CMOS process to achieve TTL-compatible thresholds at 3.3-V supply while maintaining 5-V tolerant I/Os.
Directional data flow is determined by the logic state of DIR and OE: when OE is low, DIR selects active output port (DIR = L enables B→A; DIR = H enables A→B); when OE is high, both ports enter high-impedance. Input circuits remain always active, requiring defined logic levels on all A/B pins to prevent excess ICC and ICCZ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated Li-ion battery operation without external regulation |
| A-port Output Drive | ±12 mA - sufficient to directly drive 50-Ω transmission lines or multiple CMOS loads without external buffers |
| B-port Output Drive | ±64 mA - enables direct interface to legacy 5-V TTL/CMOS systems |
| Propagation Delay | 2.2 ns (min) to 4.6 ns (max) at VCC = 3.3 V - ensures sub-5-ns timing for 200+ MHz bus applications |
| Input Voltage Tolerance | –0.5 V to 5.5 V - allows safe connection to 5-V logic without level shifters |
| Hot-Insertion Support | Ioff ≤ ±100 µA at VCC = 0 V - prevents backdrive current during live insertion into powered backplanes |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - exceeds JEDEC JESD22-A114/A115/C101 for industrial reliability |
Pinout & Package
SN74LVT162245DL is housed in a 48-pin SSOP (Shrink Small-Outline Package) with 0.5-mm pitch, 12.6 mm × 6.2 mm body size, and 1.2 mm max height - optimized for space-constrained industrial control and telecom line cards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit channel) | Determines data flow direction: low = B→A, high = A→B; enables true bidirectional operation without external logic |
| 1OE, 2OE | Output-enable input (per 8-bit channel) | Active-low enable: drives corresponding port outputs or places them in high-Z; supports independent channel gating |
| 1A1–1A8, 2A1–2A8 | A-port data I/Os (dual-octal) | 3.3-V logic interface with 22-Ω series termination - eliminates need for external series resistors on A-side traces |
| 1B1–1B8, 2B1–2B8 | B-port data I/Os (dual-octal) | 5-V tolerant I/Os capable of sourcing/sinking up to 64 mA - interfaces directly to legacy 5-V systems |
| VCC, GND | Power and ground terminals | Distributed across package (8× VCC, 8× GND) - minimizes simultaneous switching noise and improves signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage operation | 3.3-V VCC with 5-V-tolerant I/Os enables seamless interconnection between 3.3-V microcontrollers and 5-V peripherals |
| Integrated 22-Ω series resistors | On all A-port outputs - reduces EMI and signal reflections without adding PCB area or BOM cost |
| Flow-through pinout architecture | Input and output pins aligned on opposite sides - simplifies layer stacking and reduces trace crossovers in dense layouts |
| Power-up 3-state and Ioff | Guarantees high-Z outputs during power ramp-up/down - prevents bus contention in hot-swap backplane applications |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - ensures robustness against transient-induced latch-up in noisy industrial environments |
Applications
| Industrial PLC Backplane Interface | Automotive ADAS Sensor Hub |
|---|---|
Use Scenario: Interfacing a 3.3-V ARM-based controller to legacy 5-V I/O modules in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional bus transceiver managing data exchange between CPU and field I/O cards with precise direction control and noise immunity. Use Value: Eliminates need for discrete level shifters and series termination resistors, reducing BOM count and layout complexity while maintaining <5 ns propagation delay. | Use Scenario: Aggregating camera and radar sensor data from multiple 5-V sources into a 3.3-V domain processor in autonomous driving ECUs. IC Role / Device Role / Timing Role: High-speed, hot-pluggable data bridge ensuring glitch-free handover during sensor module replacement or firmware updates. Use Value: Ioff and power-up 3-state prevent bus corruption during live sensor swaps; distributed VCC/GND pins suppress switching noise critical for analog sensor signal integrity. |
| Telecom Line Card Interfacing | Test Equipment Digital I/O Module |
Use Scenario: Connecting FPGA-based packet processors (3.3-V) to legacy 5-V PHY devices on modular telecom line cards. IC Role / Device Role / Timing Role: Dual-channel transceiver enabling independent control of upstream/downstream data paths with sub-5 ns timing margin. Use Value: Flow-through pinout allows straight-through PCB routing, minimizing stub length and impedance discontinuities for 100+ Mbps serial bus compliance. | Use Scenario: Providing configurable digital I/O expansion in automated test equipment where DUT interfaces vary between 3.3-V and 5-V logic families. IC Role / Device Role / Timing Role: Reconfigurable bus buffer supporting both voltage domains with per-channel enable/disable for test sequence flexibility. Use Value: ±64 mA B-port drive supports direct connection to TTL test fixtures; 2.7 V minimum VCC ensures compatibility with aging bench power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC162245DGGR | Lower drive strength (±24 mA B-port), no integrated series resistors, 1.65–3.6 V VCC | Suitable for lower-speed, low-power 3.3-V-only systems; lacks 5-V tolerance and hot-insertion support | Select when interfacing only 3.3-V devices and board space is constrained - smaller TSSOP-48 package but reduced noise immunity |
| SN74ALVC162245DL | Higher speed (tPD down to 1.9 ns), same 3.3-V/5-V mixed-mode operation, no integrated resistors | Better suited for >250 MHz clock domains; requires external 22-Ω resistors on A-port for clean edges | Choose for ultra-high-speed applications where propagation delay is critical and external termination is acceptable |
Compared with SN74LVC162245DGGR and SN74ALVC162245DL, the SN74LVT162245DL uniquely combines 5-V I/O tolerance, integrated A-port termination, and guaranteed hot-insertion capability - making it the optimal choice for industrial backplane and mixed-voltage test equipment designs requiring robustness and layout simplicity.
Availability
SN74LVT162245DL is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive ADAS sensor hubs, telecom line cards, test equipment I/O modules, and embedded computing interconnects requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for SN74LVT162245DL 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 industrial, automotive, and communications markets.
The SN74LVT162245DL belongs to TI's Widebus™ ABT family - engineered specifically for high-speed, mixed-voltage bus interfacing in mission-critical industrial and telecom infrastructure where reliability, noise immunity, and hot-swap capability are mandatory.
FAQ
What is the maximum operating temperature range for the SN74LVT162245DL?
The SN74LVT162245DL is specified for operation from –40°C to +85°C ambient temperature. This industrial-grade range ensures reliable performance in harsh environments such as factory automation controllers, outdoor telecom cabinets, and vehicle-mounted electronics where thermal cycling and extended temperature exposure occur.
Does the SN74LVT162245DL require external pull-up resistors on OE or DIR pins?
No external pull-ups are required on OE or DIR for normal operation. However, to guarantee high-impedance state when VCC is above 1.5 V during power-up, TI recommends tying OE to VCC via a pull-up resistor - minimum value determined by the driver's current-sinking capability. The SN74LVT162245DL's internal power-up 3-state circuitry handles initial boot safely without external components.
Can the SN74LVT162245DL interface directly with 5-V microcontrollers?
Yes - the SN74LVT162245DL's B-port I/Os are fully 5-V tolerant with VI ratings up to 5.5 V, and its A-port outputs can drive 5-V TTL inputs directly. When used with a 3.3-V VCC, the device supports mixed-mode signaling: 5-V inputs are safely accepted, and B-port outputs swing rail-to-rail to 5 V when loaded appropriately, enabling direct connection to legacy 5-V microcontrollers without level-shifting circuitry.
How does the SN74LVT162245DL handle simultaneous switching noise (SSN)?
The SN74LVT162245DL mitigates SSN through distributed VCC and GND pins (eight each), placed strategically across the 48-pin SSOP footprint to minimize inductance in power delivery paths. Combined with flow-through architecture and on-die 22-Ω series resistors on A-port outputs, this design reduces ground bounce (VOLP < 0.8 V typical at 3.3 V) and ensures signal integrity in high-density, high-speed bus applications.
Is the SN74LVT162245DL RoHS compliant and lead-free?
Yes - the SN74LVT162245DL is RoHS compliant with lead-free (NIPDAU) terminal finish and meets JEDEC MSL Level-1 (260°C peak reflow). Its SSOP-DL package is qualified for standard Pb-free soldering processes, and TI provides full material declaration and environmental compliance documentation through official product pages and packaging addenda.
SN74LVT162245DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- 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:
- 48-SSOP
SN74LVT162245DL FAQ
1.How can I place an order for SN74LVT162245DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162245DL 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 SN74LVT162245DL reliable?
The price and inventory of SN74LVT162245DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162245DL is usually 5 days.
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SN74LVT162245DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162245DL 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 SN74LVT162245DL?
For technical support, including SN74LVT162245DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162245DL requirements.
6.How does Aetrix verify that SN74LVT162245DL is sourced from the original manufacturer or authorized distributors?
All SN74LVT162245DL 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 SN74LVT162245DL meets industry standards.
7.What is the process for return or replacement of SN74LVT162245DL?
All SN74LVT162245DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162245DL, 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 SN74LVT162245DL part is unused and in its original packaging.
Return procedure for SN74LVT162245DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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