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Texas Instruments SN74LVC16245AGRDR
- Part No.:
- SN74LVC16245AGRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVC16245AGRDR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,234
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Product details
Overview
SN74LVC16245AGRDR 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-V to 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 - used in printer peripheral interfaces and industrial backplane data routing.
For engineers reviewing the SN74LVC16245AGRDR datasheet, SN74LVC16245AGRDR pinout, SN74LVC16245AGRDR application, or SN74LVC16245AGRDR equivalent, key selection criteria include 3.3-V/5-V level translation capability, dual 8-bit or unified 16-bit bus control, guaranteed 125°C operation, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The SN74LVC16245AGRDR implements two independent 8-bit transceiver channels, each with dedicated direction (DIR) and output-enable (OE) controls. Its CMOS design enables bidirectional data flow - A→B when DIR = HIGH, B→A when DIR = LOW - while OE asserts high-impedance isolation on both ports.
It integrates Ioff circuitry that disables outputs and blocks current backflow when VCC = 0 V, supports 5.5-V input tolerance across all logic levels, and maintains specified DC and switching performance over –40°C to 125°C with VCC from 1.65 V to 3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables operation across low-voltage microcontroller I/O domains and legacy 3.3-V system rails. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct interfacing with 5-V logic without external level shifters in mixed-supply systems. |
| Max Propagation Delay | 4.0 ns at VCC = 3.3 V - Supports high-speed data handshaking in real-time peripheral bridges and memory-mapped I/O. |
| Ioff Current | ±10 µA at VCC = 0 V - Prevents damaging back-drive current during hot-swap or partial power-down sequences. |
| Operating Temperature | –40°C to 125°C - Qualified for industrial motor drives and telecom infrastructure where ambient thermal stress exceeds consumer-grade limits. |
| Output Drive Strength | ±24 mA per pin at VCC = 3.0 V - Sustains robust signal integrity into 50-Ω transmission lines or capacitive loads up to 30 pF. |
| ESD Rating | 2000-V HBM, 1000-V CDM - Meets JEDEC JESD22-A114 and JESD22-C101 for reliable handling in automated assembly environments. |
Pinout & Package
TSSOP-48 (DGG) package: 12.50 mm × 6.10 mm body, 0.5-mm pitch, lead-free NiPdAu finish, MSL Level-1 (260°C peak reflow).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Selects data flow direction per 8-bit channel: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE | Output enable input | Active-LOW control; HIGH forces 3-state (high-Z) output on associated port. |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals | First and second 8-bit data bus interface; tolerate 5.5-V inputs regardless of VCC. |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals | Second 8-bit data bus interface; electrically identical to Port A with same voltage tolerance. |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity across wide bus traces. |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths for high-speed switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage interface | 5.5-V-tolerant inputs enable seamless connection between 3.3-V SoCs and legacy 5-V peripherals without external translators. |
| Ioff partial-power-down | Blocks current flow through powered-off device, allowing safe insertion into live backplanes or hot-swappable modules. |
| Low propagation delay | 4.0 ns max at 3.3 V ensures timing-critical applications like printer engine controllers meet tight setup/hold windows. |
| High noise immunity | VIH/VIL thresholds scale with VCC (e.g., VIH = 0.65×VCC min), maintaining robust logic discrimination across voltage corners. |
| Thermal reliability | RθJA = 67.1°C/W (DGG) supports continuous operation at 125°C ambient in enclosed industrial enclosures. |
Applications
| Electronic Points of Sale | Printers and Peripherals |
|---|---|
Use Scenario: Bidirectional communication between ARM-based POS controller and legacy 5-V receipt printer interface. IC Role / Device Role / Timing Role: Bus transceiver enabling 3.3-V MCU to drive and read 5-V parallel printer signals with precise direction control. Use Value: Eliminates discrete level-shifter components while maintaining <4 ns timing margin for 2-MHz parallel handshaking. |
Use Scenario: Data buffering between FPGA video processor and stepper motor driver IC in multifunction inkjet printer. IC Role / Device Role / Timing Role: Isolates high-noise motor control bus from sensitive imaging data path using dual-OE control. Use Value: Prevents ground bounce coupling via eight dedicated GND pins and Ioff-enabled power sequencing. |
| Motor Drives | Wireless Infrastructure |
Use Scenario: Interfacing 3.3-V microcontroller to 5-V analog front-end and Hall-effect sensor array in BLDC motor control board. IC Role / Device Role / Timing Role: Dual-channel transceiver managing separate command (A→B) and status feedback (B→A) paths. Use Value: Direction-selectable operation avoids bus contention during real-time fault reporting and PWM update cycles. |
Use Scenario: Baseband-to-RF module data exchange in small-cell LTE radio unit with mixed 1.8-V/3.3-V supply domains. IC Role / Device Role / Timing Role: High-speed 16-bit data bridge supporting burst-mode transfers between ASIC and RFIC. Use Value: 125°C rating and 24-mA drive ensure stable operation in thermally constrained outdoor enclosure environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Same silicon, identical electrical specs, TSSOP-48 package with identical pinout and marking "LVC16245A". | No functional difference; differs only in TI's internal part numbering suffix and packaging configuration (tape-and-reel vs. bulk). | Select SN74LVC16245ADGGR for standard production tape-and-reel delivery; SN74LVC16245AGRDR is functionally identical but may reflect specific distribution channel labeling. |
| SN74ALVC16245DGGR | Higher speed (tpd ≤ 3.2 ns at 3.3 V), lower ICC (20 µA typical), but reduced 5-V tolerance (max 3.6-V inputs) and no Ioff support. | Suitable for pure 3.3-V systems requiring tighter timing margins, but unsuitable for mixed-voltage or hot-swap use cases. | Choose SN74ALVC16245DGGR only when operating exclusively at 3.3 V with no need for 5-V tolerance or Ioff protection. |
Compared with SN74LVC16245ADGGR, SN74LVC16245AGRDR offers identical functionality and performance; compared with SN74ALVC16245DGGR, it trades minor speed reduction for critical 5.5-V input tolerance and Ioff-enabled system-level robustness in mixed-supply designs.
Availability
SN74LVC16245AGRDR is available at Aetrix Electronics and suitable for electronic points of sale, printer peripherals, and motor drive subsystems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SN74LVC16245AGRDR 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 50 years of innovation in logic and interface solutions.
The SN74LVC16245AGRDR belongs to TI's Widebus™ family of advanced CMOS bus transceivers, engineered specifically for high-speed, low-voltage bidirectional data transfer in industrial, computing, and communications equipment.
FAQ
What is the maximum operating temperature for SN74LVC16245AGRDR?
The SN74LVC16245AGRDR is fully specified 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 SN74LVC16245AGRDR suitable for under-hood automotive modules and sealed industrial enclosures.
Does SN74LVC16245AGRDR support 5-V logic interfacing?
Yes, SN74LVC16245AGRDR accepts input voltages up to 5.5 V on all A- and B-port pins, regardless of VCC setting (1.65 V to 3.6 V). This allows direct connection to 5-V TTL or CMOS devices without external level shifters - a core feature confirmed in Section 9.3 and Table 7.3 of the SCES062Q datasheet.
What is the purpose of the Ioff feature in SN74LVC16245AGRDR?
The Ioff feature in SN74LVC16245AGRDR disables output buffers and blocks current flow when VCC = 0 V, preventing back-driving of powered-down sections. This enables safe live insertion into backplanes and supports partial-power-down modes in complex systems - explicitly documented in Feature #5 and Section 9.3 of the SN74LVC16245AGRDR datasheet.
How many ground pins does SN74LVC16245AGRDR have in its TSSOP-48 package?
SN74LVC16245AGRDR has eight dedicated GND pins (Pins 4, 10, 15, 21, 28, 34, 39, and 45) in the TSSOP-48 (DGG) package. This multi-ground layout minimizes ground bounce and improves signal integrity for high-speed 16-bit bus operation, as shown in the Pin Configuration diagram on page 3 of SCES062Q.
Can SN74LVC16245AGRDR be used as a single 16-bit transceiver or only as two 8-bit units?
SN74LVC16245AGRDR can operate flexibly as either two independent 8-bit transceivers (using 1DIR/1OE and 2DIR/2OE separately) or as one unified 16-bit transceiver (by tying both DIR and OE inputs together). This dual-mode capability is stated in the Description section (page 1) and Functional Modes table (Table 3, page 11) of the official datasheet.
SN74LVC16245AGRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 54-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
SN74LVC16245AGRDR FAQ
1.How can I place an order for SN74LVC16245AGRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16245AGRDR 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 SN74LVC16245AGRDR reliable?
The price and inventory of SN74LVC16245AGRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16245AGRDR is usually 5 days.
3.What payment methods are accepted for SN74LVC16245AGRDR?
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4.How is shipping managed for SN74LVC16245AGRDR?
SN74LVC16245AGRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16245AGRDR 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 SN74LVC16245AGRDR?
For technical support, including SN74LVC16245AGRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16245AGRDR requirements.
6.How does Aetrix verify that SN74LVC16245AGRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16245AGRDR 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 SN74LVC16245AGRDR meets industry standards.
7.What is the process for return or replacement of SN74LVC16245AGRDR?
All SN74LVC16245AGRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16245AGRDR, 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 SN74LVC16245AGRDR part is unused and in its original packaging.
Return procedure for SN74LVC16245AGRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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