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Texas Instruments CLVTH16245AQDGGREP
- Part No.:
- CLVTH16245AQDGGREP
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
CLVTH16245AQDGGREP.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:706
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Product details
Overview
CLVTH16245AQDGGREP from Texas Instruments is a 3.3-V ABT 16-bit noninverting bus transceiver with 3-state outputs, designed for mixed-voltage interfacing between 3.3-V logic and 5-V systems. It features dual-octal configuration (two independent 8-bit sections), bus-hold circuitry eliminating external pullup/pulldown resistors, and Ioff support for hot insertion. Used in high-speed backplane and memory interface applications requiring level translation and bus isolation.
For engineers reviewing the CLVTH16245AQDGGREP datasheet, CLVTH16245AQDGGREP pinout, CLVTH16245AQDGGREP application, or CLVTH16245AQDGGREP equivalent, key selection criteria include its 48-pin TSSOP package, –40°C to 125°C extended temperature range, 3.3-V VCC operation with 5-V tolerant inputs, and guaranteed 24 mA output drive at 3.3 V.
Technical Context
The CLVTH16245AQDGGREP implements two independent 8-bit bidirectional data paths controlled by separate DIR and OE signals per section. Its ABT BiCMOS architecture enables low static power dissipation while maintaining TTL-compatible thresholds and 5-V input tolerance at 3.3-V supply. Distributed VCC/GND pins and flow-through pinout minimize switching noise and optimize PCB layout.
It supports unregulated battery operation down to 2.7 V, includes active bus-hold on all A/B port inputs, and guarantees hot-insertion capability via Ioff and power-up 3-state logic. Output ground bounce (VOLP) is specified at <0.8 V under 3.3-V/25°C conditions, and latch-up performance exceeds 500 mA per JESD 17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7 V to 3.6 V - supports wide-input unregulated battery rails without external regulation |
| Input Voltage Tolerance | –0.5 V to 7 V - enables direct connection to 5-V logic without level-shifting components |
| Output Drive (IOL) | 24 mA min at VOL = 0.5 V - sufficient for driving 50-Ω transmission lines or multiple TTL loads |
| Propagation Delay | Typ 3.3 ns (tPLH/tPHL @ VCC = 3.3 V, CL = 50 pF) - suitable for ≤100-MHz bus timing budgets |
| Bus-Hold Current | ±75 µA min - actively maintains valid logic state on floating inputs, removing need for external biasing |
| Ioff Leakage | ±100 µA max (VI/VO = 0 to 4.5 V) - prevents damaging backflow during hot-plug sequencing |
| Operating Temperature | –40°C to +125°C - qualified for industrial and extended-temperature embedded control environments |
Pinout & Package
CLVTH16245AQDGGREP uses a 48-pin TSSOP (Thin Shrink Small Outline Package) with 0.5-mm pitch, 12.4–12.6 mm length, 6.0–6.2 mm width, and maximum 1.2 mm height. Pin 1 identifier is marked in top-left corner of package body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | High = A→B data flow; Low = B→A data flow; enables bidirectional bus arbitration |
| 1OE, 2OE | Output enable input (active-low, per section) | Low = outputs enabled; High = outputs in high-impedance state; isolates buses when deasserted |
| 1A1–1A8, 2A1–2A8 | Data inputs/outputs (A-side ports) | Connect to local processor/memory bus; tolerate 5-V inputs while operating at 3.3-V VCC |
| 1B1–1B8, 2B1–2B8 | Data inputs/outputs (B-side ports) | Interface to peripheral or legacy 5-V subsystem; bus-hold maintains state if left floating |
| VCC (pins 7, 18, 29, 40) | Power supply | Distributed VCC pins reduce simultaneous switching noise and improve PDN stability |
| GND (pins 4, 11, 22, 33, 44) | Ground reference | Multiple GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 3.3-V VCC with 5-V tolerant inputs enables seamless interconnection between 3.3-V microcontrollers and 5-V peripherals |
| Bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on all A/B port inputs, reducing BOM count and board space |
| Hot-insertion support | Ioff and power-up 3-state prevent current backflow and bus contention during live card insertion into powered backplanes |
| Flow-through pinout | A/B port pins aligned across package width simplify layer routing and minimize trace skew in parallel bus layouts |
| Distributed power/ground | Four VCC and five GND pins reduce impedance in power delivery network, lowering ground bounce and improving signal integrity |
Applications
| Industrial Backplane Interface | Memory Expansion Subsystem |
|---|---|
|
Use Scenario: Interfacing a 3.3-V FPGA-based controller to legacy 5-V ISA-style peripheral cards in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional level-translating bus transceiver managing data flow direction and isolation between voltage domains. Use Value: Eliminates discrete level shifters and pull resistors while supporting hot-swap maintenance without system shutdown. |
Use Scenario: Expanding external SRAM capacity on a 3.3-V ARM Cortex-M7 MCU where memory chips operate at 5-V. IC Role / Device Role / Timing Role: 16-bit data path buffer with direction control synchronized to address strobes and chip-select timing. Use Value: Meets tight 3.3-ns propagation delay requirement for 100-MHz asynchronous SRAM access cycles. |
| Automated Test Equipment (ATE) Fixture | Ruggedized Data Acquisition Module |
|
Use Scenario: Signal conditioning and isolation between 3.3-V test controller and 5-V DUT (device under test) interface boards. IC Role / Device Role / Timing Role: Isolating test bus segments using OE control during fault injection or calibration sequences. Use Value: Bus-hold maintains known logic states on disconnected channels, preventing undefined behavior during reconfiguration. |
Use Scenario: Connecting a 3.3-V microcontroller to 5-V analog front-end ICs and sensor signal chains in oilfield telemetry systems. IC Role / Device Role / Timing Role: Robust bidirectional data conduit rated for –40°C to +125°C ambient operation with ESD protection. Use Value: Withstands 2000-V HBM ESD events and operates reliably across full industrial temperature range without derating. |
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 |
|---|---|---|---|
| SN74LVTH16245AQDLREP | Same silicon die, SSOP-48 package (DL); 1000-unit reel vs. 2000-unit reel for DGG | Requires different PCB footprint and stencil design; higher thermal resistance (θJA = 63°C/W vs. 70°C/W) | Select DL if existing board uses SSOP or requires lower assembly cost with compatible tooling |
| SN74LVC16245APAG | Lower drive strength (24 mA vs. 64 mA), no bus-hold, 1.65–3.6 V VCC range, TSSOP-48 | Lacks 5-V input tolerance and hot-insertion support; unsuitable for mixed-voltage backplanes | Choose only for cost-sensitive 3.3-V-only systems where bus-hold and Ioff are not required |
Compared with SN74LVTH16245AQDLREP and SN74LVC16245APAG, CLVTH16245AQDGGREP uniquely combines 5-V input tolerance, bus-hold, Ioff, and extended temperature rating in a space-efficient TSSOP package-making it the only option qualified for hot-pluggable industrial backplane designs.
Availability
CLVTH16245AQDGGREP is available at Aetrix Electronics and suitable for industrial automation, ruggedized data acquisition, and high-reliability backplane interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CLVTH16245AQDGGREP 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 decades of experience in high-reliability interface ICs.
The CLVTH16245AQDGGREP belongs to TI's Widebus™ family of advanced bus interface devices, engineered specifically for robust mixed-voltage communication in industrial, aerospace, and defense systems.
FAQ
What is the maximum operating voltage for CLVTH16245AQDGGREP inputs?
The CLVTH16245AQDGGREP supports input voltages up to 7 V, enabling direct interfacing with 5-V logic families while operating from a 3.3-V supply. This 5-V tolerance is guaranteed across the full –40°C to +125°C temperature range and does not require external clamping diodes or level-shifting circuitry.
Does CLVTH16245AQDGGREP support hot insertion in powered backplanes?
Yes, CLVTH16245AQDGGREP is explicitly qualified for hot-insertion applications. Its Ioff circuitry disables outputs when VCC = 0 V, preventing damaging current backflow, and its power-up 3-state feature ensures outputs remain in high-impedance until VCC stabilizes above 1.5 V.
How does bus-hold functionality work on CLVTH16245AQDGGREP?
CLVTH16245AQDGGREP integrates active bus-hold circuitry on all A and B port inputs, providing ±75 µA minimum overdrive current to maintain the last-valid logic state when inputs float. This eliminates external pullup/pulldown resistors and prevents metastability in unterminated stubs or disconnected modules.
What is the thermal performance of CLVTH16245AQDGGREP in its TSSOP package?
The CLVTH16245AQDGGREP in TSSOP-48 (DGG) has a junction-to-ambient thermal resistance (θJA) of 70°C/W under standard JEDEC test conditions. Its four VCC and five GND pins help distribute heat and reduce localized heating during sustained 24-mA output loading.
Can CLVTH16245AQDGGREP operate below 3.3 V?
Yes, CLVTH16245AQDGGREP is fully specified from 2.7 V to 3.6 V VCC. At 2.7 V, it maintains 24-mA output drive capability and meets all AC/DC specifications, supporting unregulated battery-powered systems where supply voltage may sag during peak load.
CLVTH16245AQDGGREP 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:
- 24mA, 24mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
CLVTH16245AQDGGREP FAQ
1.How can I place an order for CLVTH16245AQDGGREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVTH16245AQDGGREP 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 CLVTH16245AQDGGREP reliable?
The price and inventory of CLVTH16245AQDGGREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVTH16245AQDGGREP is usually 5 days.
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4.How is shipping managed for CLVTH16245AQDGGREP?
CLVTH16245AQDGGREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVTH16245AQDGGREP 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 CLVTH16245AQDGGREP?
For technical support, including CLVTH16245AQDGGREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVTH16245AQDGGREP requirements.
6.How does Aetrix verify that CLVTH16245AQDGGREP is sourced from the original manufacturer or authorized distributors?
All CLVTH16245AQDGGREP 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 CLVTH16245AQDGGREP meets industry standards.
7.What is the process for return or replacement of CLVTH16245AQDGGREP?
All CLVTH16245AQDGGREP units undergo pre-shipment inspection (PSI). If there is an issue with CLVTH16245AQDGGREP, 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 CLVTH16245AQDGGREP part is unused and in its original packaging.
Return procedure for CLVTH16245AQDGGREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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