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Texas Instruments SN74LVT162245DLR
- Part No.:
- SN74LVT162245DLR
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162245DLR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
SN74LVT162245DLR 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 logic domains. It features 48-pin SSOP packaging, ±64 mA B-port sink current, integrated 22-Ω series output resistors on A-port, and supports hot insertion via Ioff and power-up 3-state.
For engineers reviewing the SN74LVT162245DLR datasheet, SN74LVT162245DLR pinout, SN74LVT162245DLR application, or SN74LVT162245DLR equivalent, this page delivers verified electrical specs, directional control behavior, mixed-mode voltage tolerance (5-V inputs with 3.3-V VCC), thermal performance (θJA = 63°C/W), and real-world transceiver use cases in backplane and FPGA interface designs.
Technical Context
The SN74LVT162245DLR implements dual independent 8-bit transceiver sections, each controlled by dedicated DIR and OE signals. Its ABT (Advanced BiCMOS Technology) architecture enables TTL-compatible input thresholds while operating at 3.3-V VCC, with guaranteed VIH = 2.0 V and VIL = 0.8 V across –40°C to 85°C.
Directional data flow is determined by synchronous assertion of DIR and OE: DIR = LOW + OE = LOW enables B→A transmission; DIR = HIGH + OE = LOW enables A→B transmission; OE = HIGH forces both ports into high-impedance. Input circuits remain active regardless of OE state, requiring defined logic levels on all A/B pins to avoid excess 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 without functional degradation. |
| IOL (B port) | 64 mA - enables direct drive of heavy capacitive loads or multiple TTL inputs without external buffers. |
| tPLH / tPHL (A→B) | 2.2 ns to 3.3 ns @ VCC = 3.3 V - ensures sub-4 ns propagation for high-speed interconnects in FPGA-to-ASIC links. |
| VOL (B port, IOL = 64 mA) | 0.55 V - guarantees solid LOW-level margin under full load, critical for noise-immune signaling in industrial backplanes. |
| IOFF | ±100 µA @ VCC = 0 - prevents damaging backflow current during hot-insertion, enabling live module replacement in telecom systems. |
| θJA | 63°C/W (SSOP-DL package) - defines thermal derating limit for continuous 16-bit switching at ambient up to 85°C. |
| ESD Rating | 2000-V HBM - exceeds JEDEC JESD22-A114 requirement, ensuring robustness in handling and board assembly. |
Pinout & Package
SN74LVT162245DLR uses a 48-pin SSOP (Shrink Small Outline Package) with 0.5-mm pitch, 12.4 mm × 6.0 mm body, and 1.2 mm max height. Pin 1 identifier is marked in top-left corner; gull-wing leads facilitate standard reflow soldering.
| 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; referenced to VCC, not local bus voltage. |
| 1OE, 2OE | Output enable input (per 8-bit section) | Active-LOW: drives corresponding port outputs when LOW; HIGH places outputs in high-Z, enabling bus sharing. |
| 1A1–1A8, 2A1–2A8 | A-port data I/O (dual-octal) | 3.3-V tolerant inputs/outputs with 22-Ω series resistance - eliminates need for external termination resistors. |
| 1B1–1B8, 2B1–2B8 | B-port data I/O (dual-octal) | 5-V tolerant inputs/outputs capable of sinking 64 mA - interfaces directly to legacy 5-V TTL buses. |
| VCC, GND | Power supply and ground | Distributed VCC/GND pins (12 total) minimize simultaneous switching noise and improve signal integrity at >100 MHz. |
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 - eliminates level-shifter ICs in hybrid-voltage systems. |
| Integrated 22-Ω A-port series resistors | Reduces overshoot/undershoot on A-side traces without discrete components - simplifies PCB layout and improves EMI compliance. |
| Hot-insertion support | Ioff and power-up 3-state ensure zero-current backflow and automatic high-Z during power ramp - certified for live-swap applications. |
| Flow-through pinout | A/B port pins aligned linearly (e.g., A1–B1 adjacent) - enables straight trace routing and minimizes crosstalk in dense backplane layouts. |
| Latch-up immunity | >100 mA per JESD78 Class II - withstands transient overvoltage events in industrial control environments without destructive latch-up. |
Applications
| Industrial 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 on a shared backplane. IC Role / Device Role / Timing Role: Bus transceiver managing direction-controlled data flow with sub-4 ns propagation delay and 5-V-tolerant B-port inputs. Use Value: Eliminates discrete level shifters and reduces BOM count by integrating termination resistors and hot-swap protection. |
Use Scenario: Isolating and translating control/status signals between Xilinx Kintex-7 FPGA and TI C66x DSP in a radar processing module. IC Role / Device Role / Timing Role: Dual-octal transceiver providing independent DIR/OE control per byte lane to synchronize burst transfers. Use Value: Enables deterministic timing with matched tPLH/tPHL skew <0.5 ns, critical for setup/hold compliance in 100+ MHz parallel interfaces. |
| Telecom Line Card Expansion | Automotive ADAS Sensor Hub |
Use Scenario: Hot-pluggable line card interfacing 3.3-V packet processor with 5-V PHY layer chips in modular base station equipment. IC Role / Device Role / Timing Role: Transceiver enforcing isolation during insertion/removal via Ioff and power-up 3-state behavior. Use Value: Prevents bus contention and system reset during field maintenance - validated per Telcordia GR-63-CORE. |
Use Scenario: Aggregating LVDS camera sensor data (converted to parallel CMOS) and feeding into 3.3-V SoC in automotive surround-view system. IC Role / Device Role / Timing Role: Level-translating buffer isolating noisy 5-V sensor power domain from sensitive SoC I/O rails. Use Value: Suppresses ground bounce (VOLP <0.8 V) and meets AEC-Q100 Grade 2 temperature range (–40°C to 105°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lower drive strength (24 mA B-port sink), no integrated series resistors, 1.65–3.6 V VCC range. | Suitable for lower-speed, low-power 3.3-V-only systems; lacks 5-V tolerance and hot-insertion support. | Select when cost and power efficiency outweigh mixed-voltage and hot-swap requirements. |
| SN74AVC162245DGGR | Higher speed (tPLH = 1.8 ns), 1.2–3.6 V VCC, no 5-V tolerance, supports 12-bit auto-direction sensing. | Optimized for ultra-high-speed 1.8-V/2.5-V memory interfaces; requires external direction control logic for bidirectional use. | Choose for DDR3/DDR4 memory subsystems where voltage compatibility and propagation delay dominate selection criteria. |
Compared with SN74LVC16245ADGGR and SN74AVC162245DGGR, the SN74LVT162245DLR uniquely combines 5-V input tolerance, integrated A-port termination, and certified hot-insertion capability - making it the only option among the three qualified for mixed-voltage telecom backplane upgrades.
Availability
SN74LVT162245DLR is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA-to-ASIC bridges, telecom line card expansion, and automotive ADAS sensor hubs requiring stable component supply across extended temperature and long product lifecycles.
Supply support for SN74LVT162245DLR 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 SN74LVT162245DLR belongs to TI's Widebus™ family of advanced bus interface devices, engineered specifically for high-reliability, mixed-voltage data routing in mission-critical infrastructure and real-time embedded systems.
FAQ
What is the maximum data rate supported by SN74LVT162245DLR?
The SN74LVT162245DLR does not specify a formal data rate limit but delivers 2.2–3.3 ns propagation delay (A→B) at 3.3 V, supporting reliable operation up to 100+ MHz parallel bus frequencies. Signal integrity depends on trace length, load capacitance, and termination - design validation is required for >150 Mbps per bit.
Can SN74LVT162245DLR interface a 5-V microcontroller with a 3.3-V FPGA?
Yes. The SN74LVT162245DLR B-port accepts 5-V inputs while operating from 3.3-V VCC, and its A-port drives 3.3-V logic levels. This allows direct connection between 5-V MCU address/data lines and 3.3-V FPGA I/O banks without external level shifters.
Does SN74LVT162245DLR require external pull-up resistors on OE or DIR pins?
No external pull-ups are required for normal operation. However, to guarantee high-impedance state when VCC rises above 1.5 V during power-up, TI recommends tying OE to VCC via a pull-up resistor - minimum value determined by driver sink capability (typically ≤10 kΩ).
Is SN74LVT162245DLR RoHS compliant and lead-free?
Yes. SN74LVT162245DLR carries NIPDAU (nickel-palladium-gold) lead finish, is RoHS-compliant per TI's packaging addendum, and rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH), compatible with standard Pb-free reflow profiles up to 260°C peak.
How does SN74LVT162245DLR handle undriven (floating) inputs?
All A- and B-port inputs must be held at valid logic HIGH or LOW (preferably VCC or GND) - floating inputs increase ICCZ and risk metastability. TI explicitly warns that unused I/Os left floating violate recommended operating conditions and may cause excessive supply current or erratic output behavior in SN74LVT162245DLR.
SN74LVT162245DLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
SN74LVT162245DLR FAQ
1.How can I place an order for SN74LVT162245DLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162245DLR 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 SN74LVT162245DLR reliable?
The price and inventory of SN74LVT162245DLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162245DLR is usually 5 days.
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SN74LVT162245DLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162245DLR 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 SN74LVT162245DLR?
For technical support, including SN74LVT162245DLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162245DLR requirements.
6.How does Aetrix verify that SN74LVT162245DLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162245DLR 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 SN74LVT162245DLR meets industry standards.
7.What is the process for return or replacement of SN74LVT162245DLR?
All SN74LVT162245DLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162245DLR, 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 SN74LVT162245DLR part is unused and in its original packaging.
Return procedure for SN74LVT162245DLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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