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Texas Instruments 74LVT16245BDGGRE4
- Part No.:
- 74LVT16245BDGGRE4
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVT16245BDGGRE4.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,455
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Product details
Overview
74LVT16245BDGGRE4 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 systems. It features two independent 8-bit channels (A↔B), direction control per channel (1DIR/2DIR), output-enable (1OE/2OE), ±64 mA low-level drive, and hot-insertion support via Ioff and power-up 3-state.
For engineers reviewing the 74LVT16245BDGGRE4 datasheet, 74LVT16245BDGGRE4 pinout, 74LVT16245BDGGRE4 application, or 74LVT16245BDGGRE4 equivalent, key selection criteria include mixed-voltage interface capability (5-V tolerant inputs/outputs at 3.3-V VCC), TSSOP-48 package compatibility, propagation delay ≤3.7 ns (VCC = 3.3 V), and industrial temperature range (–40°C to +85°C).
Technical Context
The 74LVT16245BDGGRE4 implements Advanced BiCMOS Technology (ABT) for low static power and high-speed switching. Its dual-octal architecture supports independent direction and enable control per 8-bit port, enabling flexible A-to-B or B-to-A data flow without bus contention.
It integrates distributed VCC/GND pins to suppress high-speed switching noise, flow-through pinout for optimized PCB layout, and robust ESD protection (2000-V HBM, 200-V MM, 1000-V CDM). The device enters high-impedance state during power-up/down when VCC is below 1.5 V, and supports unregulated battery operation down to 2.7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Voltage | 2.7 V to 3.6 V - enables stable operation across wide battery or regulator tolerance ranges |
| IOL / IOH Drive Strength | 64 mA / –32 mA - sufficient to drive heavy capacitive loads or multiple TTL inputs without external buffers |
| tPLH / tPHL Propagation Delay | ≤3.7 ns at VCC = 3.3 V, CL = 50 pF - supports >100 MHz bus timing in high-speed digital systems |
| VI Input Voltage Range | –0.5 V to 5.5 V - allows direct interfacing with 5-V logic while powered from 3.3-V rail |
| IOZPU / IOZPD Power-Up/Down Leakage | ±100 µA - ensures reliable high-impedance state during hot-swap transitions |
| θJA Thermal Impedance | 70 °C/W (TSSOP-DGG) - supports continuous operation at full drive under typical board airflow |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - exceeds JEDEC standards for system-level robustness |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body, 0.5 mm pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (active-HIGH) | Selects data flow direction per 8-bit port: DIR = HIGH enables A→B; DIR = LOW enables B→A |
| 1OE, 2OE | Output-enable input (active-LOW) | Disables both A- and B-port outputs simultaneously into high-impedance state when HIGH |
| 1A1–1A8, 2A1–2A8 | A-port data I/O terminals | Connect to local bus; always active inputs, require defined logic level to avoid excess ICC |
| 1B1–1B8, 2B1–2B8 | B-port data I/O terminals | Connect to remote bus; driven only when corresponding DIR/OE conditions are met |
| VCC (Pins 7, 16, 25, 34, 43) | Power supply | Distributed VCC pins minimize IR drop and switching noise across 16-bit data path |
| GND (Pins 4, 13, 22, 31, 40) | Ground reference | Distributed GND pins provide low-inductance return paths for all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage interface | 5-V tolerant I/Os at 3.3-V VCC - eliminates level-shifter ICs in 3.3/5-V mixed-bus systems |
| Hot-insertion support | Ioff circuitry blocks reverse current when powered down - prevents backdrive damage during live card insertion |
| Flow-through pinout | A/B ports aligned linearly across package - reduces trace crossovers and improves signal integrity on dense PCBs |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V - maintains noise margin during simultaneous switching of multiple outputs |
| Latch-up immunity | Exceeds 100 mA per JESD 78 Class II - ensures reliability in noisy industrial environments |
Applications
| PCI Bus Interface | Memory Expansion Module |
|---|---|
Use Scenario: Bridging legacy 5-V PCI add-in cards to modern 3.3-V host controllers. IC Role / Device Role: Bidirectional level-translating transceiver managing address/data/control signals between buses. Use Value: Eliminates discrete level shifters while maintaining signal integrity and timing compliance per PCI spec. |
Use Scenario: Extending DRAM or Flash memory capacity on embedded controller boards with mixed-voltage memory subsystems. IC Role / Device Role: Isolating and translating control/address/data lines between 3.3-V SoC and 5-V memory modules. Use Value: Enables plug-and-play memory upgrades without redesigning power or signal routing layers. |
| Industrial PLC Backplane | Test Equipment Data Acquisition |
Use Scenario: Interfacing modular I/O cards (5-V sensors/actuators) to a 3.3-V central processing unit in programmable logic controllers. IC Role / Device Role: Robust, noise-immune bus transceiver handling real-time control data across isolated backplane segments. Use Value: Delivers latch-up immunity and ESD resilience required for factory-floor electromagnetic environments. |
Use Scenario: Capturing parallel digital waveforms from DUTs operating at 5-V logic levels using a 3.3-V FPGA-based acquisition system. IC Role / Device Role: High-fidelity, low-skew data capture buffer synchronizing multi-channel parallel inputs before digitization. Use Value: Achieves sub-4 ns propagation matching across all 16 bits, preserving timing relationships in high-speed test vectors. |
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, no 5-V tolerance - requires external clamping for 5-V inputs | Suitable only for pure 3.3-V or lower-voltage systems; not interoperable with 5-V buses | Choose when cost and power efficiency outweigh mixed-voltage needs and board space permits clamping diodes |
| 74ALVC16245PW,118 | NXP part; 1.65–3.6 V VCC, 5-V tolerant inputs only (not outputs), 24 mA drive | Accepts 5-V inputs safely but cannot drive 5-V loads - limited to 3.3-V receiver-only interfaces | Select when interfacing 5-V peripherals to 3.3-V receivers only, and TI supply chain continuity is secondary |
Compared with SN74LVC16245ADGGR and 74ALVC16245PW,118, the 74LVT16245BDGGRE4 uniquely supports full bidirectional 5-V ↔ 3.3-V signaling with higher drive strength and guaranteed hot-swap operation - making it the only option for legacy bus integration without redesign.
Availability
74LVT16245BDGGRE4 is available at Aetrix Electronics and suitable for industrial PLC backplanes, test equipment data acquisition, and PCI bus interface designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 74LVT16245BDGGRE4 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 over 90 years of innovation in high-reliability components.
The 74LVT16245BDGGRE4 belongs to TI's Widebus™ family of advanced bus interface devices, engineered specifically for mixed-voltage system interconnect in industrial, communications, and computing infrastructure.
FAQ
What is the maximum operating voltage for 74LVT16245BDGGRE4 I/O pins?
The 74LVT16245BDGGRE4 supports input and output voltages up to 5.5 V regardless of VCC level, enabling safe interfacing with 5-V logic families while powered from a 3.3-V supply. This 5-V tolerance is specified across the full operating temperature range and does not require external clamping diodes.
Does 74LVT16245BDGGRE4 support hot-plug operation?
Yes, the 74LVT16245BDGGRE4 supports hot-insertion via integrated Ioff and power-up 3-state circuitry. When VCC = 0 V, Ioff limits reverse current to ±100 µA, preventing damage from backdriving. During power-up/down, outputs remain in high-impedance state until VCC exceeds 1.5 V, avoiding bus conflicts.
What is the propagation delay specification for 74LVT16245BDGGRE4 at 3.3 V?
At VCC = 3.3 V and CL = 50 pF, the 74LVT16245BDGGRE4 guarantees tPLH/tPHL ≤ 3.7 ns (max), with typical values of 2.3 ns. This delay applies to both A→B and B→A data paths and is measured under standard load conditions defined in TI's SCBS715E datasheet.
Can 74LVT16245BDGGRE4 operate from a 2.7-V supply?
Yes, the 74LVT16245BDGGRE4 is fully specified for operation from 2.7 V to 3.6 V. At 2.7 V, it delivers ≥48 mA low-level drive and maintains functional timing (tPLH/tPHL ≤ 4.5 ns), supporting battery-powered or unregulated supply applications without performance degradation.
What package type and dimensions does 74LVT16245BDGGRE4 use?
The 74LVT16245BDGGRE4 uses a TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body size, 0.5 mm lead pitch, gull-wing terminations, and NiPdAu surface finish. It complies with JEDEC MO-153 and has MSL Level-1 rating for unlimited floor life at ≤30°C/60% RH.
74LVT16245BDGGRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 48-TSSOP
74LVT16245BDGGRE4 FAQ
1.How can I place an order for 74LVT16245BDGGRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16245BDGGRE4 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 74LVT16245BDGGRE4 reliable?
The price and inventory of 74LVT16245BDGGRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16245BDGGRE4 is usually 5 days.
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Once your 74LVT16245BDGGRE4 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 74LVT16245BDGGRE4?
For technical support, including 74LVT16245BDGGRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16245BDGGRE4 requirements.
6.How does Aetrix verify that 74LVT16245BDGGRE4 is sourced from the original manufacturer or authorized distributors?
All 74LVT16245BDGGRE4 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 74LVT16245BDGGRE4 meets industry standards.
7.What is the process for return or replacement of 74LVT16245BDGGRE4?
All 74LVT16245BDGGRE4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16245BDGGRE4, 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 74LVT16245BDGGRE4 part is unused and in its original packaging.
Return procedure for 74LVT16245BDGGRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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