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Texas Instruments SN74LVC16245ADGGR
- Part No.:
- SN74LVC16245ADGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVC16245ADGGR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,755
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Product details
Overview
SN74LVC16245ADGGR 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 SN74LVC16245ADGGR datasheet, SN74LVC16245ADGGR pinout, SN74LVC16245ADGGR application, or SN74LVC16245ADGGR equivalent, key selection criteria include 48-pin TSSOP (DGG) package compatibility, 16-bit bidirectional bus isolation capability, 5.5-V input tolerance across full VCC range (1.65–3.6 V), and guaranteed tpd ≤ 5.0 ns at 3.3 V/125°C.
Technical Context
The SN74LVC16245ADGGR implements two independent 8-bit transceiver channels (A↔B), each controlled by dedicated DIR and OE pins. Direction control is level-sensitive: DIR = L enables B→A flow; DIR = H enables A→B flow. Output enable is active-low: OE = L activates drivers; OE = H forces all outputs into high-impedance state.
It uses CMOS logic with balanced drive strength (±24 mA at 3.3 V), supports down-translation (e.g., 5-V inputs to 3.3-V bus), and incorporates Ioff circuitry that disables outputs and blocks current backflow when VCC = 0 V - critical for hot-swap and multi-rail system interoperability.
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 | Up to 5.5 V - allows safe connection to 5-V legacy peripherals or microcontrollers in mixed-voltage systems. |
| Max Propagation Delay | 4.0 ns at VCC = 3.3 V, TA = 25°C - ensures sub-250-MHz data throughput in synchronous bus applications. |
| Output Drive Strength | ±24 mA per output at VCC = 3.3 V - sustains robust signal integrity across 15-cm PCB traces with 30-pF load. |
| Ioff Current | ±10 µA at VCC = 0 V, VI/VO = 5.5 V - prevents damaging back-current during hot-plug or power sequencing events. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial-grade handling requirements without special ESD precautions. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive modules and industrial motor drive control units. |
Pinout & Package
TSSOP-48 (DGG) package: 12.50 mm × 6.10 mm body, 0.5-mm pitch, lead-free NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Level-sensitive logic: DIR = H routes A→B; DIR = L routes B→A - enables independent bidirectional control per 8-bit channel. |
| 1OE, 2OE | Active-low output enable | OE = L enables transceiver; OE = H places all associated A/B I/Os in high-Z - provides per-channel bus isolation. |
| 1A1–1A8, 2A1–2A8 | Port A I/O terminals | 8-bit bidirectional data path tied to local controller or processor bus - accepts 5.5-V inputs regardless of VCC. |
| 1B1–1B8, 2B1–2B8 | Port B I/O terminals | 8-bit bidirectional data path connected to peripheral or memory bus - drives 3.3-V logic levels with ±24-mA sink/source. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity - requires local 0.1-µF ceramic bypass per pin. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths - essential for maintaining < 0.8-V ground bounce (VOLP) at 3.3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage translation | 5.5-V-tolerant inputs operate reliably with 1.65–3.6-V VCC - eliminates external level shifters in 3.3-V ↔ 5-V interconnects. |
| Ioff partial-power-down | Outputs disable and block current flow when VCC = 0 V - enables safe live insertion into powered-backplane systems. |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V, TA = 25°C - minimizes switching noise coupling into analog sections or adjacent digital signals. |
| High-speed timing | tpd ≤ 5.0 ns over full –40°C to +125°C range at 3.3 V - supports deterministic timing closure in real-time industrial controllers. |
| Robust ESD protection | 2000-V HBM and 1000-V CDM - exceeds JEDEC JESD22-A114/A115/C101 - reduces field failure risk in assembly and end-use environments. |
Applications
| Printer Peripheral Interface | Industrial Backplane Data Routing |
|---|---|
|
Use Scenario: Bidirectional data exchange between a 3.3-V SoC and legacy 5-V parallel printer port or scanner interface. IC Role / Device Role / Timing Role: Bus transceiver providing voltage-level translation and direction-controlled data flow between mismatched logic families. Use Value: Eliminates discrete level-shifter ICs while maintaining < 5-ns timing margin for 2-MBps parallel handshaking protocols. |
Use Scenario: Isolating and routing 16-bit address/data lines between CPU module and I/O expansion slots in modular PLC chassis. IC Role / Device Role / Timing Role: Dual-channel transceiver enabling independent read/write arbitration on shared backplane bus segments. Use Value: Per-channel OE control allows dynamic bus segmentation without FPGA reconfiguration or additional glue logic. |
| Motor Drive Control Interface | Wearable Health Sensor Hub |
|
Use Scenario: Interfacing a 3.3-V MCU to 5-V position encoder feedback lines and PWM-driven gate driver logic in servo inverters. IC Role / Device Role / Timing Role: Robust bidirectional buffer with Ioff protection during power-up sequencing of isolated DC-link and control domains. Use Value: Prevents latch-up and back-current damage when encoder signals are active before MCU VCC stabilizes. |
Use Scenario: Aggregating sensor data from multiple 5-V analog front-ends (ECG, SpO₂) into a 1.8-V ultra-low-power wearable SoC. IC Role / Device Role / Timing Role: Low-voltage transceiver enabling mixed-supply sensor fusion with minimal quiescent current (ICC < 20 µA). Use Value: Supports 1.65-V operation - extends battery life in coin-cell-powered devices while retaining 5-V input compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGVR | Identical electrical specs; TVSOP-48 (9.70 mm × 4.40 mm) - 23% smaller footprint than DGG. | Better suited for space-constrained portable designs where board area is premium. | Select DGVR if PCB real estate is constrained and thermal dissipation < 0.5 W; otherwise DGGR offers superior manufacturability at scale. |
| SN74ALVC16245DL | Higher speed (tpd ≤ 3.4 ns @ 3.3 V), but narrower VCC range (2.3–3.6 V); SSOP-48 package. | Targeted at high-throughput telecom line cards requiring tighter timing margins. | Choose ALVC variant only when sub-3.5-ns propagation is mandatory and 1.65-V operation is not required. |
Compared with SN74LVC16245ADGGR, the DGVR offers identical functionality in a smaller TVSOP package ideal for wearables, while the ALVC16245DL trades wider voltage support for higher speed - making SN74LVC16245ADGGR the optimal balance of flexibility, robustness, and manufacturability for industrial and peripheral applications.
Availability
SN74LVC16245ADGGR is available at Aetrix Electronics and suitable for industrial backplane data routing, printer peripheral interfacing, and motor drive control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74LVC16245ADGGR 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 SN74LVC16245ADGGR belongs to TI's Widebus™ family of advanced CMOS bus transceivers, engineered specifically for reliable, low-power, mixed-voltage data communication in industrial automation, computing peripherals, and automotive subsystems.
FAQ
What is the maximum operating temperature for the SN74LVC16245ADGGR?
The SN74LVC16245ADGGR is rated for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A108 and supports deployment in engine-control units, industrial motor drives, and outdoor telecom infrastructure where thermal stress is significant. The device maintains full DC and AC specifications across this range.
Does the SN74LVC16245ADGGR support 5-V input signals when powered at 1.8 V?
Yes, the SN74LVC16245ADGGR supports input voltages up to 5.5 V regardless of VCC level - including at 1.8 V. This is explicitly specified in the "Inputs Accept Voltages to 5.5 V" feature and confirmed in Section 7.3 (Recommended Operating Conditions), where VI is rated 0–5.5 V across the full 1.65–3.6-V VCC range. No external clamping is required.
How many VCC and GND pins does the SN74LVC16245ADGGR have in its TSSOP-48 package?
The SN74LVC16245ADGGR in the DGG (TSSOP-48) package has four VCC pins (pins 7, 18, 31, 42) and eight GND pins (pins 4, 10, 15, 21, 28, 34, 39, 45). This distributed power/ground architecture minimizes impedance, suppresses ground bounce (VOLP < 0.8 V), and improves signal integrity in high-speed bus applications.
Can the SN74LVC16245ADGGR be used as a single 16-bit transceiver or only as dual 8-bit units?
The SN74LVC16245ADGGR can be configured either as two independent 8-bit transceivers (using 1DIR/1OE and 2DIR/2OE separately) or as one unified 16-bit transceiver (by tying 1DIR = 2DIR and 1OE = 2OE). The functional block diagram and truth table in Section 9.4 confirm both modes are fully supported and electrically identical in timing and drive capability.
What is the purpose of the Ioff feature in the SN74LVC16245ADGGR?
The Ioff feature in the SN74LVC16245ADGGR disables output buffers and blocks current flow when VCC = 0 V - preventing damaging back-current from live system buses into a powered-down device. This enables safe live insertion, partial-power-down operation, and back-drive protection in multi-rail systems, as verified in Section 7.5 (Ioff = ±10 µA at VCC = 0 V, VI/VO = 5.5 V).
SN74LVC16245ADGGR 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:
- Active
- 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
SN74LVC16245ADGGR FAQ
1.How can I place an order for SN74LVC16245ADGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16245ADGGR 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 SN74LVC16245ADGGR reliable?
The price and inventory of SN74LVC16245ADGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16245ADGGR is usually 5 days.
3.What payment methods are accepted for SN74LVC16245ADGGR?
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4.How is shipping managed for SN74LVC16245ADGGR?
SN74LVC16245ADGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16245ADGGR 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 SN74LVC16245ADGGR?
For technical support, including SN74LVC16245ADGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16245ADGGR requirements.
6.How does Aetrix verify that SN74LVC16245ADGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16245ADGGR 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 SN74LVC16245ADGGR meets industry standards.
7.What is the process for return or replacement of SN74LVC16245ADGGR?
All SN74LVC16245ADGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16245ADGGR, 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 SN74LVC16245ADGGR part is unused and in its original packaging.
Return procedure for SN74LVC16245ADGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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