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Texas Instruments 74LVC16245ADGGRG4
- Part No.:
- 74LVC16245ADGGRG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVC16245ADGGRG4.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,570
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Product details
Overview
74LVC16245ADGGRG4 from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between 1.65–3.6 V buses. It supports mixed-mode signaling (5.5 V-tolerant inputs at 3.3 V VCC), delivers ≤4 ns propagation delay at 3.3 V, and features Ioff for live insertion and partial-power-down protection. It serves in system-level bus isolation and voltage translation in embedded peripherals.
For engineers reviewing the 74LVC16245ADGGRG4 datasheet, 74LVC16245ADGGRG4 pinout, 74LVC16245ADGGRG4 application, or 74LVC16245ADGGRG4 equivalent, key selection criteria include 48-pin TSSOP package compatibility, 16-bit bidirectional flow control via DIR/OE pins, 5.5 V input tolerance, Ioff-enabled hot-swap capability, and guaranteed tpd ≤5.0 ns across –40°C to 125°C.
Technical Context
The 74LVC16245ADGGRG4 implements two independent 8-bit transceiver channels-each with dedicated direction (DIR) and output-enable (OE) controls-enabling simultaneous or segregated A↔B bus communication. Its CMOS design ensures balanced drive strength (±24 mA at 3.3 V) and low dynamic power (Cpd = 38 pF per transceiver at 3.3 V).
It operates across 1.65–3.6 V VCC with full 5.5 V input tolerance on all I/Os, enabling seamless interfacing between 3.3 V logic and legacy 5 V systems. The Ioff circuit actively disables outputs when VCC = 0 V, preventing back-drive current and supporting live insertion in backplane or modular systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables operation across low-voltage portable and industrial supply rails. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to 5 V sources without level-shifting circuitry. |
| Max Propagation Delay | 5.0 ns at 3.3 V, –40°C to 125°C - Supports high-speed synchronous bus timing up to ~200 MHz. |
| Output Drive Strength | ±24 mA at 3.3 V - Sufficient to drive 50 Ω transmission lines or multiple CMOS loads. |
| Ioff Current | ±20 µA at 2.3–3.6 V - Ensures safe isolation during power sequencing or hot-plug events. |
| ESD Rating | 2000 V HBM, 1000 V CDM - Meets industrial-grade robustness requirements per JESD22. |
| Operating Temperature | –40°C to 125°C - Qualified for extended-temperature automotive and industrial environments. |
Pinout & Package
TSSOP-48 (DGG) package: 12.50 mm × 6.10 mm body, 0.5 mm pitch, lead-free NiPdAu finish, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH selects A→B data flow; LOW enables B→A flow per channel. |
| 1OE, 2OE | Output enable input | Active-LOW disables both A and B ports of respective channel into high-impedance state. |
| A1–A8, B1–B8 (x2) | Bidirectional I/O port | Each pair forms an 8-bit transceiver lane; pins are 5.5 V tolerant and support Ioff. |
| VCC (pins 7,18,31,42) | Power supply | Four distributed VCC pins reduce switching noise and improve PSRR across wide bus operation. |
| GND (pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths for 16 I/Os and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage interface | 5.5 V-tolerant inputs allow direct connection to 5 V microcontrollers while operating at 3.3 V VCC. |
| Ioff partial-power-down | Prevents damaging current backflow when VCC = 0 V, enabling safe hot-swap in modular backplanes. |
| Low ground bounce | VOLP < 0.8 V at 3.3 V ensures signal integrity during simultaneous switching of multiple outputs. |
| High noise immunity | VIH/VIL thresholds scale with VCC (e.g., VIH = 2.0 V min at 3.3 V), maintaining noise margin across voltage range. |
| Thermal reliability | RθJA = 67.1°C/W (DGG) supports sustained 16-bit operation at 125°C ambient without derating. |
Applications
| Electronic Points of Sale | Printers and Other Peripherals |
|---|---|
Use Scenario: Isolating host processor bus from thermal printer head controller and paper feed motor driver circuits. IC Role / Device Role / Timing Role: Bidirectional bus transceiver managing parallel data and handshaking signals between 3.3 V SoC and 5 V peripheral ICs. Use Value: Eliminates need for discrete level shifters; Ioff prevents back-drive during printer power cycling. |
Use Scenario: Interfacing USB-to-parallel bridge IC with legacy parallel port peripherals in multifunction printers. IC Role / Device Role / Timing Role: 16-bit transceiver buffering and translating bidirectional STROBE, ACK, BUSY, and DATA lines. Use Value: 4 ns tpd ensures timing compliance with IEEE 1284 EPP/ECP modes; 5.5 V tolerance accepts legacy 5 V logic levels. |
| Motor Drives | Wireless and Telecom Infrastructures |
Use Scenario: Connecting FPGA-based motion controller to isolated gate driver modules in servo amplifier boards. IC Role / Device Role / Timing Role: Dual-channel transceiver separating digital command bus (A-side) from feedback/status bus (B-side) with independent DIR/OE control. Use Value: Independent channel enables real-time status polling without halting command transmission; Ioff protects FPGA during driver module hot-swap. |
Use Scenario: Buffering configuration and status buses between baseband processor and RF front-end modules in small-cell radios. IC Role / Device Role / Timing Role: High-speed 16-bit transceiver isolating 3.3 V baseband domain from 5 V RF power management ICs. Use Value: 125°C rating supports operation in sealed outdoor enclosures; low Cpd minimizes jitter on clock-distribution traces routed nearby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGVR | Same electrical specs; TVSOP-48 (9.70 mm × 4.40 mm) - 27% smaller footprint than DGG. | Preferred where board space is constrained but thermal load remains moderate (RθJA = 80.2°C/W). | Select for compact designs with adequate airflow; verify trace routing fits narrower body width. |
| SN74LVC16245ADL | Same electrical specs; SSOP-48 (15.88 mm × 7.49 mm) - larger body, higher thermal mass, RθJA = 70.6°C/W. | Suitable for high-reliability industrial systems requiring mechanical robustness and enhanced thermal stability. | Choose for harsh environments where vibration resistance and thermal inertia outweigh size concerns. |
Compared with SN74LVC16245ADGVR and SN74LVC16245ADL, the 74LVC16245ADGGRG4 offers optimal balance of thermal performance (67.1°C/W), industry-standard TSSOP footprint, and tape-and-reel logistics (2000 pcs/reel), making it ideal for high-volume automated assembly.
Availability
74LVC16245ADGGRG4 is available at Aetrix Electronics and suitable for electronic points of sale, printers and other peripherals, and motor drives requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for 74LVC16245ADGGRG4 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 SN74LVC16245A product line delivers high-speed, low-voltage bus interface solutions for mixed-signal systems, emphasizing voltage translation, hot-swap safety, and noise-immune data integrity in resource-constrained embedded platforms.
FAQ
What is the maximum operating temperature range for the 74LVC16245ADGGRG4?
The 74LVC16245ADGGRG4 is rated for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD78 and supported by thermal metrics including RθJA = 67.1°C/W in the TSSOP-48 (DGG) package, making it suitable for under-hood automotive modules and sealed industrial enclosures where passive cooling dominates.
Does the 74LVC16245ADGGRG4 support 5 V logic inputs while powered at 3.3 V?
Yes, the 74LVC16245ADGGRG4 accepts input voltages up to 5.5 V regardless of VCC setting (1.65–3.6 V). This is explicitly specified in the "Recommended Operating Conditions" table (VI = 0–5.5 V) and enables direct interfacing with legacy 5 V microcontrollers or peripherals without external level shifters - a core feature of the LVC family's mixed-mode signal operation.
How does the Ioff feature function in the 74LVC16245ADGGRG4 during power-down?
The Ioff circuit in the 74LVC16245ADGGRG4 actively disables all I/O buffers when VCC = 0 V, limiting leakage current to ±20 µA (max) even if 5.5 V signals remain present on A/B ports. This prevents destructive back-current flow into the unpowered device, satisfying JEDEC JESD78 latch-up immunity requirements and enabling safe live insertion in modular backplane systems.
What is the typical propagation delay of the 74LVC16245ADGGRG4 at 3.3 V and 25°C?
The typical propagation delay (tpd) of the 74LVC16245ADGGRG4 is 3.0 ns at VCC = 3.3 V and TA = 25°C, with a guaranteed maximum of 4.0 ns over –40°C to 85°C and 5.0 ns over –40°C to 125°C. These values apply to both A→B and B→A signal paths and are measured under standard load conditions (CL = 50 pF, Δt/Δv ≤ 2.5 ns/V).
Can the 74LVC16245ADGGRG4 be used as two independent 8-bit transceivers?
Yes, the 74LVC16245ADGGRG4 is architecturally dual-channel: pins 1DIR/1OE control the first 8-bit path (A1–A8 ↔ B1–B8), while 2DIR/2OE independently manage the second 8-bit path (A9–A16 ↔ B9–B16). This allows concurrent bidirectional data transfers - for example, streaming sensor data on one channel while sending control commands on the other - without cross-talk or timing dependency.
74LVC16245ADGGRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74LVC16245ADGGRG4 FAQ
1.How can I place an order for 74LVC16245ADGGRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC16245ADGGRG4 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 74LVC16245ADGGRG4 reliable?
The price and inventory of 74LVC16245ADGGRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC16245ADGGRG4 is usually 5 days.
3.What payment methods are accepted for 74LVC16245ADGGRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC16245ADGGRG4 transactions.
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4.How is shipping managed for 74LVC16245ADGGRG4?
74LVC16245ADGGRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC16245ADGGRG4 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 74LVC16245ADGGRG4?
For technical support, including 74LVC16245ADGGRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC16245ADGGRG4 requirements.
6.How does Aetrix verify that 74LVC16245ADGGRG4 is sourced from the original manufacturer or authorized distributors?
All 74LVC16245ADGGRG4 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 74LVC16245ADGGRG4 meets industry standards.
7.What is the process for return or replacement of 74LVC16245ADGGRG4?
All 74LVC16245ADGGRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC16245ADGGRG4, 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 74LVC16245ADGGRG4 part is unused and in its original packaging.
Return procedure for 74LVC16245ADGGRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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