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Texas Instruments CLVTH162245IDGGREP
- Part No.:
- CLVTH162245IDGGREP
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
CLVTH162245IDGGREP.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,614
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Product details
Overview
CLVTH162245IDGGREP from Texas Instruments is a 16-bit dual-octal noninverting 3-state transceiver operating at 2.7–3.6 V VCC, supporting mixed-mode 5-V/3.3-V interfacing with 12 mA A-port drive and integrated 22-Ω series resistors. It enables bidirectional data flow between A and B buses under DIR control and supports hot insertion via Ioff and power-up 3-state.
For engineers reviewing the CLVTH162245IDGGREP datasheet, CLVTH162245IDGGREP pinout, CLVTH162245IDGGREP application, or CLVTH162245IDGGREP equivalent, key selection criteria include bus-hold functionality, 2.7-V battery operation support, distributed VCC/GND for noise reduction, and TSSOP-48 packaging for high-density PCB layouts.
Technical Context
This device implements a flow-through architecture with separate direction (DIR) and output-enable (OE) controls per 8-bit section, enabling independent A↔B or B↔A data routing. Each A-port output integrates a 22-Ω series resistor to suppress overshoot/undershoot without external components.
Bus-hold circuitry actively maintains valid logic states on undriven inputs, eliminating need for external pullup/pulldown resistors. Ioff protection disables outputs during power-down to prevent backflow current, while power-up 3-state ensures high-impedance outputs during VCC ramping from 0 to 1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated battery operation down to 2.7 V with stable TTL-level interface capability |
| A-Port Drive | ±12 mA - sufficient to directly drive standard TTL loads without external buffers |
| B-Port Drive | ±64 mA low-level / ±32 mA high-level - higher sink/source capability for legacy 5-V bus termination |
| Propagation Delay | 1 ns to 4.6 ns (tPLH/tPHL) - enables reliable 100+ MHz data transfer in point-to-point or stub-bus topologies |
| Bus-Hold Current | ±75 µA at 3 V - maintains defined logic state on floating inputs without external biasing |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - exceeds JEDEC JESD22 requirements for board-level robustness |
| Thermal Resistance | θJA = 70°C/W (TSSOP) - enables sustained operation at full drive strength up to 85°C ambient |
Pinout & Package
TSSOP-48 package (DGG), 12.6 mm × 6.2 mm × 1.2 mm max height, with gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1, and Q1 pin-1 quadrant orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Determines data flow direction per 8-bit section: L = B→A, H = A→B |
| 1OE, 2OE | Output enable input | Active-low; drives all associated outputs into high-impedance when high |
| 1A1–1A8, 2A1–2A8 | A-side data I/O | 3.3-V logic interface with bus-hold and 22-Ω series resistance on outputs |
| 1B1–1B8, 2B1–2B8 | B-side data I/O | 5-V tolerant inputs/outputs; no internal series resistance; higher drive strength |
| VCC, GND | Power supply terminals | Distributed across package (12× VCC, 12× GND) to minimize simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-voltage interface | 5-V input tolerance on B port + 3.3-V VCC operation enables direct connection between legacy 5-V and modern 3.3-V subsystems |
| Integrated 22-Ω series resistors | Eliminates need for 16 discrete series resistors on A-port outputs, reducing BOM count and PCB area |
| Hot-insertion support | Ioff and power-up 3-state prevent backfeed and bus contention during live board insertion into powered backplanes |
| Bus-hold circuitry | Actively holds unused A/B port inputs at valid logic levels, removing requirement for 32 external pullup/pulldown resistors |
| Flow-through pinout | Input and output pins aligned on opposite sides of package to simplify layer routing and reduce trace crossovers |
Applications
| Industrial Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing a 3.3-V microcontroller unit to a legacy 5-V CAN/LIN transceiver cluster on a vehicle body control board. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing command/response traffic between voltage domains with precise timing isolation. Use Value: Eliminates discrete level shifters and pull resistors while maintaining signal integrity across temperature ranges from −40°C to 85°C. | Use Scenario: Connecting an FPGA-based ADAS sensor fusion processor to multiple 5-V analog front-end ICs in a compact ECU housing. IC Role / Device Role / Timing Role: High-speed data bridge with sub-5 ns propagation delay and controlled slew rate to preserve setup/hold margins. Use Value: Reduces interconnect jitter and ground bounce through distributed power pins and integrated series termination. |
| Telecom Line Card Buffering | Test Equipment Signal Routing |
Use Scenario: Isolating and translating control signals between a 3.3-V baseband processor and 5-V line interface units (LIUs) in carrier-grade DSLAM modules. IC Role / Device Role / Timing Role: 3-state configurable bus transceiver enabling dynamic reconfiguration of signal paths during firmware updates. Use Value: Bus-hold prevents floating control lines during reconfiguration, avoiding spurious resets or latch-ups in mission-critical hardware. | Use Scenario: Building modular signal routing matrices in automated test equipment where DUT interfaces vary between 3.3-V and 5-V logic families. IC Role / Device Role / Timing Role: Reconfigurable bidirectional data path with independent OE/DIR per octet for flexible channel mapping. Use Value: Single-component solution replaces multiple discrete translators, reducing layout complexity and improving channel-to-channel skew consistency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level-shifting transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | No bus-hold; lower drive (24 mA B-port); no integrated series resistors; 1.65–3.6 V VCC only | Requires external pull resistors; unsuitable for unregulated battery rails below 2.7 V | Select when cost sensitivity outweighs bus-hold need and system uses regulated 3.3-V supply only |
| SN74ALVCH162245GR | Higher speed (tPD < 2.8 ns); 1.65–3.6 V VCC; no 5-V tolerant B port; no integrated series resistors | Cannot interface to 5-V buses; lacks hot-insertion support (no Ioff) | Choose for high-speed 3.3-V-only systems where 5-V compatibility is unnecessary |
Compared with SN74LVC16245ADGGR and SN74ALVCH162245GR, CLVTH162245IDGGREP uniquely combines 5-V-tolerant B-port inputs, integrated 22-Ω A-port termination, bus-hold, and Ioff-enabled hot insertion-making it the only option for robust mixed-voltage backplane interfacing under unregulated supply conditions.
Availability
CLVTH162245IDGGREP is available at Aetrix Electronics and suitable for industrial backplane interfaces, automotive body control modules, telecom line card buffering, and test equipment signal routing requiring stable component supply across extended temperature and voltage ranges.
Supply support for CLVTH162245IDGGREP 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 company specializing in analog, embedded processing, and logic solutions, with leadership in industrial, automotive, and communications markets.
The LVTH family delivers advanced 3.3-V logic with 5-V tolerance and enhanced robustness features-including bus-hold, Ioff, and integrated termination-designed specifically for mixed-voltage system interconnect in harsh environments.
FAQ
What voltage levels can the CLVTH162245IDGGREP safely interface between?
The CLVTH162245IDGGREP supports true mixed-mode operation: its A ports operate at 3.3-V VCC and accept 5-V inputs, while B ports are fully 5-V tolerant on both inputs and outputs. This allows seamless bidirectional communication between 3.3-V and 5-V subsystems without external level-shifting components. The device remains functional down to 2.7 V VCC, making it suitable for unregulated battery-powered applications.
Does the CLVTH162245IDGGREP require external pullup or pulldown resistors on its data lines?
No, the CLVTH162245IDGGREP includes active bus-hold circuitry on all A- and B-port inputs, which maintains a valid logic state on undriven or floating lines. Using external pullup or pulldown resistors with bus-hold enabled is explicitly discouraged in the datasheet, as it may cause excessive current draw or logic contention. This feature eliminates up to 32 discrete resistors in typical 16-bit bus configurations.
How does the CLVTH162245IDGGREP support hot insertion in live backplane systems?
The CLVTH162245IDGGREP supports hot insertion through two complementary features: Ioff circuitry disables outputs when VCC = 0 V, preventing damaging current backflow from live buses into a powered-down device; and power-up 3-state forces all outputs into high-impedance during VCC ramp-up (0–1.5 V), avoiding bus conflicts. These features are fully characterized per JEDEC standards and require no external components to implement.
What is the purpose of the 22-Ω series resistors integrated into the A-port outputs of the CLVTH162245IDGGREP?
The 22-Ω series resistors on each A-port output dampen signal edge rates to reduce overshoot and undershoot caused by transmission-line effects on PCB traces. This eliminates the need for 16 discrete surface-mount resistors, simplifying layout, lowering BOM cost, and improving signal integrity-especially in high-speed, high-density routing scenarios where trace impedance mismatches are common. The value is optimized for typical FR-4 microstrip environments.
Can the CLVTH162245IDGGREP be used as two independent 8-bit transceivers?
Yes, the CLVTH162245IDGGREP is architecturally divided into two independent 8-bit sections (1A/1B and 2A/2B), each with dedicated DIR and OE controls. This allows concurrent operation-for example, one section transferring data A→B while the other handles B→A-or independent isolation. The flow-through pinout and distributed power pins ensure minimal crosstalk and noise coupling between sections during simultaneous switching.
CLVTH162245IDGGREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- 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:
- 12mA, 12mA; 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-TSSOP
CLVTH162245IDGGREP FAQ
1.How can I place an order for CLVTH162245IDGGREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVTH162245IDGGREP 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 CLVTH162245IDGGREP reliable?
The price and inventory of CLVTH162245IDGGREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVTH162245IDGGREP is usually 5 days.
3.What payment methods are accepted for CLVTH162245IDGGREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVTH162245IDGGREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVTH162245IDGGREP?
CLVTH162245IDGGREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVTH162245IDGGREP 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 CLVTH162245IDGGREP?
For technical support, including CLVTH162245IDGGREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVTH162245IDGGREP requirements.
6.How does Aetrix verify that CLVTH162245IDGGREP is sourced from the original manufacturer or authorized distributors?
All CLVTH162245IDGGREP 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 CLVTH162245IDGGREP meets industry standards.
7.What is the process for return or replacement of CLVTH162245IDGGREP?
All CLVTH162245IDGGREP units undergo pre-shipment inspection (PSI). If there is an issue with CLVTH162245IDGGREP, 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 CLVTH162245IDGGREP part is unused and in its original packaging.
Return procedure for CLVTH162245IDGGREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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