My Inquiry
My Account
Texas Instruments 74LVTH16245ADGVRG4
- Part No.:
- 74LVTH16245ADGVRG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVTH16245ADGVRG4.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVTH16245ADGVRG4 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 bus-hold circuitry, Ioff support for hot insertion, distributed VCC/GND pins, and operates down to 2.7 V. Used in mixed-voltage backplane interfaces and FPGA-to-ASIC interconnects.
For engineers reviewing the 74LVTH16245ADGVRG4 datasheet, 74LVTH16245ADGVRG4 pinout, 74LVTH16245ADGVRG4 application, or 74LVTH16245ADGVRG4 equivalent, key selection criteria include its 48-pin TVSOP (DGV) package, ±64 mA output drive at 3.3 V, 3.7 ns max propagation delay, bus-hold input retention, and Ioff-enabled hot-swap capability.
Technical Context
This device implements an advanced BiCMOS (ABT) process optimized for 3.3-V operation while maintaining TTL-compatible input thresholds and 5-V tolerant I/O. Its dual-octal architecture supports independent direction control per 8-bit port via DIR inputs and separate 3-state enable via OE signals.
The flow-through pinout minimizes PCB trace skew; distributed power/ground pins reduce simultaneous switching noise; and bus-hold circuitry eliminates external pull resistors on unused inputs. Power-up 3-state and Ioff protection ensure safe insertion into live backplanes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7 V to 3.6 V - supports unregulated battery rails and low-noise 3.3-V domains |
| IOL / IOH Drive | 64 mA / –32 mA at VCC = 3.3 V - sufficient to drive 50-pF loads with <3.7 ns propagation delay |
| tPLH / tPHL | ≤3.7 ns at VCC = 3.3 V, CL = 50 pF - enables high-speed synchronous bus handshaking |
| VIH / VIL Thresholds | 2.0 V / 0.8 V - compatible with TTL logic levels while operating from 3.3-V supply |
| Bus-Hold Current | ±750 µA max - actively retains logic state on floating A/B-port inputs without external resistors |
| Ioff Leakage | ±100 µA at VCC = 0 V - prevents backdrive current during hot insertion or partial power-down |
| ESD Rating | 2000-V HBM, 200-V MM - exceeds JEDEC JESD22-A114/A115 for robust board handling |
Pinout & Package
74LVTH16245ADGVRG4 uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), 3.6 mm × 12.5 mm body, 0.4 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant. Pin 1 located at top-left corner (Q1 quadrant), marked by beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (active-high) | Selects data flow direction per 8-bit port: DIR = L → B→A; DIR = H → A→B |
| 1OE, 2OE | Output-enable input (active-low) | Disables corresponding port outputs to high-impedance when high |
| 1A1–1A8, 2A1–2A8 | A-port data I/O (input/output) | First and second 8-bit bus interface; always input-active, driven only when enabled |
| 1B1–1B8, 2B1–2B8 | B-port data I/O (input/output) | Complementary 8-bit bus interface; bidirectional path controlled by DIR/OE |
| VCC (Pins 7, 18, 29, 40) | Supply voltage | Distributed power pins minimize IR drop and switching noise across 16-bit bus |
| GND (Pins 4, 11, 22, 33, 44) | Ground reference | Five ground pins provide low-inductance return paths for all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs/outputs with 3.3-V VCC - enables direct interfacing between legacy 5-V logic and modern 3.3-V FPGAs |
| Bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on idle data lines - reduces BOM count and layout area |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive and bus contention during live system expansion - critical for modular backplanes |
| Flow-through architecture | Input and output pins arranged opposite each other (e.g., 1A1 ↔ 1B1) - simplifies layer routing and minimizes trace length mismatch |
| Distributed VCC/GND | Four VCC and five GND pins interleaved across package - lowers simultaneous switching noise (SSN) and improves signal integrity |
Applications
| Industrial Backplane Interface | FPGA-to-ASIC Data Bridge |
|---|---|
|
Use Scenario: Bidirectional data exchange between 5-V PLC I/O modules and 3.3-V controller FPGA on a shared backplane. IC Role / Device Role / Timing Role: Level-shifting transceiver managing asynchronous read/write handshaking with independent DIR/OE control per octet. Use Value: Eliminates discrete level shifters and pull resistors; bus-hold maintains valid state during module hot-swap events. |
Use Scenario: High-speed parallel data path between Xilinx Artix-7 FPGA and custom ASIC in test equipment. IC Role / Device Role / Timing Role: 16-bit bidirectional buffer with sub-4 ns propagation enabling tight setup/hold timing margins. Use Value: Flow-through pinout allows straight-layer routing; distributed power pins suppress SSN-induced jitter on clock-sensitive paths. |
| Memory Expansion Subsystem | Legacy Peripheral Adapter |
|
Use Scenario: Extending 3.3-V microcontroller address/data bus to support external SRAM and flash using 5-V-compatible control lines. IC Role / Device Role / Timing Role: Dual-octal transceiver isolating MCU bus from memory subsystem during chip-select transitions. Use Value: Ioff protection prevents current leakage when memory is powered down; 2.7-V minimum VCC supports brown-out resilience. |
Use Scenario: Interfacing modern 3.3-V SoC with legacy 5-V UART, SPI, or GPIO peripherals in medical diagnostics hardware. IC Role / Device Role / Timing Role: Voltage-tolerant bus transceiver providing bidirectional protocol translation without external biasing. Use Value: TTL-compatible VIH/VIL thresholds ensure reliable logic detection; ±64 mA drive supports long traces to remote peripherals. |
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 (24 mA), no bus-hold, 1.65–3.6 V VCC range | Suitable for cost-sensitive 3.3-V-only systems without hot-swap or floating-input requirements | Choose when power efficiency and lower cost outweigh mixed-voltage tolerance and bus-hold needs |
| 74ALVCH16245DLR | Higher speed (2.3 ns typ), 1.65–3.6 V, no 5-V tolerance, no Ioff | Optimized for high-frequency 3.3-V buses where 5-V compatibility is unnecessary | Prefer for dense, high-clock-rate designs where propagation delay dominates over voltage flexibility |
Compared with SN74LVC16245ADGGR and 74ALVCH16245DLR, the 74LVTH16245ADGVRG4 uniquely combines 5-V I/O tolerance, bus-hold, Ioff, and 3.3-V ABT performance - making it the only choice for robust mixed-voltage hot-plug backplane interfaces.
Availability
74LVTH16245ADGVRG4 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA-to-ASIC bridging, memory expansion subsystems, and legacy peripheral adapters requiring stable component supply and long-term lifecycle assurance.
Supply support for 74LVTH16245ADGVRG4 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 expertise in high-reliability interface ICs and widebus architectures.
The 74LVTH16245ADGVRG4 belongs to TI's Widebus™ family of advanced BiCMOS transceivers, engineered specifically for mixed-voltage system interconnects in industrial automation, telecom infrastructure, and test equipment.
FAQ
What is the maximum operating temperature range for the 74LVTH16245ADGVRG4?
The 74LVTH16245ADGVRG4 is rated for operation from –40°C to +85°C ambient temperature, consistent with commercial-grade TI logic devices in the LVTH family. This range supports deployment in industrial control cabinets, network edge equipment, and embedded computing platforms without forced cooling.
Does the 74LVTH16245ADGVRG4 support hot insertion, and how is it implemented?
Yes, the 74LVTH16245ADGVRG4 supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent backdrive current, and power-up 3-state holds outputs in high-impedance until VCC stabilizes above 1.5 V. Both mechanisms are inherent to the ABT process and require no external components.
Can the 74LVTH16245ADGVRG4 interface directly with 5-V logic while powered from 3.3 V?
Yes - the 74LVTH16245ADGVRG4 accepts 5-V input signals and drives 5-V-tolerant outputs while operating from a 3.3-V VCC supply. Its VIH threshold is 2.0 V and VOH can reach 3.3 V, satisfying TTL logic levels and enabling seamless interoperability with legacy 5-V systems without level-shifting circuitry.
What is the purpose of the bus-hold feature on the 74LVTH16245ADGVRG4, and how does it affect design?
The bus-hold circuitry on the 74LVTH16245ADGVRG4 actively maintains the last-valid logic state on unused or undriven A/B-port inputs, eliminating the need for external pullup or pulldown resistors. This reduces component count, saves PCB space, and avoids weak-state contention during signal transitions or partial system resets.
Is the 74LVTH16245ADGVRG4 pin-compatible with other packages in the LVTH16245A family?
No - the 74LVTH16245ADGVRG4 uses the 48-pin TVSOP (DGV) package, which has different dimensions, pitch (0.4 mm), and thermal characteristics than the SSOP (DL) or TSSOP (DGG) variants. While functionally identical, mechanical interchangeability requires matching package drawings and land patterns per TI's DGV0048A mechanical data.
74LVTH16245ADGVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.173", 4.40mm 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-TVSOP
74LVTH16245ADGVRG4 FAQ
1.How can I place an order for 74LVTH16245ADGVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH16245ADGVRG4 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 74LVTH16245ADGVRG4 reliable?
The price and inventory of 74LVTH16245ADGVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH16245ADGVRG4 is usually 5 days.
3.What payment methods are accepted for 74LVTH16245ADGVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH16245ADGVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH16245ADGVRG4?
74LVTH16245ADGVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH16245ADGVRG4 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 74LVTH16245ADGVRG4?
For technical support, including 74LVTH16245ADGVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH16245ADGVRG4 requirements.
6.How does Aetrix verify that 74LVTH16245ADGVRG4 is sourced from the original manufacturer or authorized distributors?
All 74LVTH16245ADGVRG4 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 74LVTH16245ADGVRG4 meets industry standards.
7.What is the process for return or replacement of 74LVTH16245ADGVRG4?
All 74LVTH16245ADGVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH16245ADGVRG4, 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 74LVTH16245ADGVRG4 part is unused and in its original packaging.
Return procedure for 74LVTH16245ADGVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVTH16245ADGVRG4 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
