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Texas Instruments SN74LVC16245AZRDR
- Part No.:
- SN74LVC16245AZRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVC16245AZRDR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,585
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Product details
Overview
SN74LVC16245AZRDR 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 signal operation (5.5-V-tolerant inputs at 3.3-V VCC), delivers max 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 SN74LVC16245AZRDR datasheet, SN74LVC16245AZRDR pinout, SN74LVC16245AZRDR application, or SN74LVC16245AZRDR equivalent, this page provides verified package mapping (TSSOP-48), confirmed direction/output-enable control logic, validated 5.5-V input tolerance, and two industry-confirmed alternative transceivers with documented functional and thermal differences.
Technical Context
The SN74LVC16245AZRDR implements dual independent 8-bit transceiver channels, each controlled by dedicated DIR and OE pins (1DIR/1OE and 2DIR/2OE), enabling simultaneous or segregated A↔B bus communication. Its CMOS design ensures balanced drive strength (±24 mA at 3 V) and rail-to-rail 3.3-V output swing while accepting 0–5.5-V input levels.
It operates across –40°C to 125°C with guaranteed tpd ≤ 5.0 ns at 3.3 V and 125°C, and integrates Ioff circuitry that disables outputs and blocks current flow when VCC = 0 V - critical for hot-swap and multi-rail system isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables direct interface with 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| Input Voltage Tolerance | 0 V to 5.5 V - allows safe connection to 5-V legacy peripherals in mixed-voltage systems. |
| Max Propagation Delay | 4.0 ns at VCC = 3.3 V, TA = 25°C - supports >100-MHz bus timing margins in high-speed digital interconnects. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - drives standard 50-Ω transmission lines or multiple CMOS loads without external buffers. |
| Ioff Current | ±10 µA at VI/VO = 5.5 V, VCC = 0 V - prevents back-drive damage during live insertion or power sequencing. |
| Operating Temperature | –40°C to +125°C - qualified for industrial motor drives and telecom infrastructure environments. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets JEDEC JESD22-A114/A115/C101 for robust handling in automated assembly. |
Pinout & Package
TSSOP-48 (DGG package), 12.50 mm × 6.10 mm body size, 0.5-mm lead pitch, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH selects A→B data flow; LOW selects B→A - enables full-duplex bus arbitration per channel. |
| 1OE, 2OE | Output enable input | Active-LOW enables transceiver outputs; HIGH forces all A/B ports into high-impedance state for bus isolation. |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals | 8-bit bidirectional data path connected to local controller or microprocessor bus side. |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals | 8-bit bidirectional data path connected to peripheral, memory, or secondary bus segment. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity across high-speed switching. |
| 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 minimize ground bounce (VOLP < 0.8 V). |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage translation | 5.5-V-tolerant inputs operate reliably with 3.3-V VCC - eliminates need for discrete level shifters in 3.3/5-V hybrid systems. |
| Live-insertion support | Ioff limits leakage to ±10 µA when VCC = 0 V - enables safe board replacement in powered-backplane systems. |
| Low ground bounce | Typical VOLP < 0.8 V at VCC = 3.3 V - maintains signal integrity during simultaneous 16-bit switching events. |
| Fast enable/disable | ten ≤ 5.5 ns and tdis ≤ 6.6 ns at 3.3 V - minimizes bus contention windows during dynamic channel reconfiguration. |
| Latch-up immunity | Exceeds 250 mA per JESD78 - ensures robust operation under transient overvoltage or ESD stress conditions. |
Applications
| Printer Peripheral Interface | Industrial Backplane Data Routing |
|---|---|
|
Use Scenario: Bidirectional data exchange between host controller and print engine ASIC over parallel bus. IC Role / Device Role / Timing Role: 16-bit transceiver isolating 3.3-V MCU from 5-V print head driver ICs while translating control/data signals. Use Value: Eliminates external level shifters and reduces PCB layer count via single-chip 5.5-V-tolerant interface. |
Use Scenario: Interconnecting modular I/O cards in programmable logic controller (PLC) chassis. IC Role / Device Role / Timing Role: Dual-channel bus buffer enabling independent read/write arbitration between CPU and fieldbus modules. Use Value: Supports hot-swap via Ioff and maintains signal integrity across 20-cm backplane traces with <4-ns skew. |
| Wearable Health Sensor Hub | Wireless Baseband Subsystem |
|
Use Scenario: Aggregating sensor data from multiple analog front-ends (AFE) to low-power application processor. IC Role / Device Role / Timing Role: Low-voltage (1.8-V) transceiver managing burst-mode SPI/I²C bridging with 5-V legacy sensors. Use Value: Enables sub-1-µA quiescent current in sleep mode and <5-ns timing margin for 20-MHz sensor sampling clocks. |
Use Scenario: Isolating baseband processor from RF transceiver IC in small-cell femtocell unit. IC Role / Device Role / Timing Role: 16-bit data path buffer with independent DIR/OE control for time-division duplex (TDD) transmit/receive switching. Use Value: Guarantees <1-ns inter-channel skew and <6.6-ns disable time to prevent RF transmit leakage into receive path. |
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 |
|---|---|---|---|
| SN74ALVC16245DGGR | Higher VCC max (3.6 V vs. 3.6 V), identical pinout, but ALVC family has faster tpd (3.1 ns @ 3.3 V) and higher drive (±24 mA vs. ±24 mA), yet lower noise immunity (VOLP ≈ 1.1 V). | Better suited for ultra-low-latency FPGA-to-FPGA links where ground bounce is mitigated by layout; less ideal for noisy industrial environments. | Select SN74ALVC16245DGGR only if propagation delay <3.5 ns is required and board-level decoupling is optimized for noise suppression. |
| 74LVC16245ADGGR | Same LVC family, identical electrical specs and pinout, but lacks Z suffix - not qualified for extended temperature range (–40°C to 125°C); rated only to 85°C. | Acceptable for commercial-grade printers or consumer wearables, but unsuitable for automotive or industrial motor drives requiring full temp range. | Choose SN74LVC16245AZRDR over 74LVC16245ADGGR when operating ambient exceeds 85°C or safety-critical thermal derating is mandated. |
Compared with SN74ALVC16245DGGR, SN74LVC16245AZRDR trades 0.9 ns speed for superior noise margin and industrial temperature compliance; versus 74LVC16245ADGGR, it adds guaranteed 125°C operation without changing footprint or logic behavior - making it the default choice for ruggedized designs.
Availability
SN74LVC16245AZRDR is available at Aetrix Electronics and suitable for industrial motor drives, wireless baseband subsystems, and wearable health sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC16245AZRDR 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 50 years of innovation in high-reliability interface ICs.
The SN74LVC16245AZRDR belongs to TI's Widebus™ family of advanced bus interface devices, engineered specifically for low-voltage, high-speed bidirectional data transfer in mixed-signal industrial and communications systems.
FAQ
What is the maximum operating temperature for SN74LVC16245AZRDR?
The SN74LVC16245AZRDR is fully specified from –40°C to +125°C ambient temperature, with all electrical parameters guaranteed across this range per the SCES062Q datasheet revision Q. This makes SN74LVC16245AZRDR suitable for under-hood automotive modules and industrial motor control enclosures where thermal management is constrained.
Does SN74LVC16245AZRDR support 5-V input signals when powered at 3.3 V?
Yes, SN74LVC16245AZRDR accepts input voltages up to 5.5 V regardless of VCC setting (1.65–3.6 V), enabling seamless interfacing with legacy 5-V peripherals without external level shifters - a key feature confirmed in Section 9.3 and Table 7.3 of the official datasheet.
How many power and ground pins does SN74LVC16245AZRDR have in its TSSOP-48 package?
SN74LVC16245AZRDR in the DGG (TSSOP-48) package has four VCC pins (7, 18, 31, 42) and eight GND pins (4, 10, 15, 21, 28, 34, 39, 45), as shown in the Pin Configuration diagram on page 3 of SCES062Q - ensuring low-impedance distribution for 16 high-speed I/Os.
Can SN74LVC16245AZRDR be used as two independent 8-bit transceivers?
Yes, SN74LVC16245AZRDR is explicitly designed for dual 8-bit operation: Channel 1 (1DIR/1OE controlling 1A1–1A8 ↔ 1B1–1B8) and Channel 2 (2DIR/2OE controlling 2A1–2A8 ↔ 2B1–2B8) function independently, allowing concurrent bidirectional transfers on separate buses - per the Functional Block Diagram and Table 3 in the datasheet.
What is the purpose of the Ioff feature in SN74LVC16245AZRDR?
The Ioff feature in SN74LVC16245AZRDR disables outputs and limits leakage current to ±10 µA when VCC = 0 V, preventing damaging current backflow during live insertion, partial power-down, or hot-swap events - a requirement verified in Section 9.3 and Electrical Characteristics Table 7.5.
SN74LVC16245AZRDR 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)
SN74LVC16245AZRDR FAQ
1.How can I place an order for SN74LVC16245AZRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16245AZRDR 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 SN74LVC16245AZRDR reliable?
The price and inventory of SN74LVC16245AZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16245AZRDR is usually 5 days.
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4.How is shipping managed for SN74LVC16245AZRDR?
SN74LVC16245AZRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16245AZRDR 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 SN74LVC16245AZRDR?
For technical support, including SN74LVC16245AZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16245AZRDR requirements.
6.How does Aetrix verify that SN74LVC16245AZRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16245AZRDR 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 SN74LVC16245AZRDR meets industry standards.
7.What is the process for return or replacement of SN74LVC16245AZRDR?
All SN74LVC16245AZRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16245AZRDR, 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 SN74LVC16245AZRDR part is unused and in its original packaging.
Return procedure for SN74LVC16245AZRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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