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Texas Instruments CLVTH162245MDLREP
- Part No.:
- CLVTH162245MDLREP
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CLVTH162245MDLREP.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,562
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Product details
Overview
CLVTH162245MDLREP from Texas Instruments is a 16-bit dual-octal noninverting 3-state transceiver designed for mixed-voltage bus interfacing between 3.3-V logic and 5-V TTL systems, featuring 22-Ω integrated series resistors on A-port outputs, bus-hold circuitry, and Ioff support for hot insertion. It operates across −55°C to 125°C and supports bidirectional data flow (A↔B) with independent direction and output-enable controls.
For engineers reviewing the CLVTH162245MDLREP datasheet, CLVTH162245MDLREP pinout, CLVTH162245MDLREP application, or CLVTH162245MDLREP equivalent, key selection considerations include its extended temperature range (−55°C to 125°C), SSOP-48 package, 3.3-V VCC operation with 5-V tolerant inputs/outputs, and integrated bus-hold functionality eliminating external pull resistors.
Technical Context
This device implements a flow-through architecture with distributed VCC/GND pins to minimize high-speed switching noise and optimize PCB layout. Its dual 8-bit sections operate independently, each with dedicated DIR and OE inputs enabling flexible bus isolation and direction control.
The A-port outputs integrate 22-Ω series resistors to suppress overshoot/undershoot, while bus-hold circuitry maintains valid logic states on undriven inputs without external components. Ioff and power-up 3-state features ensure safe hot-insertion by disabling outputs during power transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - enables stable operation under unregulated battery supply down to 2.7 V |
| Operating Temperature | −55°C to 125°C - qualified per JEDEC standards for enhanced reliability in harsh environments |
| IOH / IOL (A port) | −12 mA / 12 mA - sufficient drive strength for TTL-compatible loads with low-power consumption |
| IOH / IOL (B port) | −32 mA / 64 mA - higher B-port sink capability supports legacy 5-V bus loading requirements |
| tPLH / tPHL (A→B) | 1 ns to 3.3 ns at VCC = 3.3 V - ensures sub-4 ns propagation delay for high-speed bidirectional data transfer |
| Bus-Hold Current | ±75 µA at VCC = 3 V - actively holds unused inputs at valid logic levels without external resistors |
| Ioff Leakage | ±100 µA at VCC = 0 V - prevents damaging backflow current during hot insertion or power-down |
Pinout & Package
CLVTH162245MDLREP is housed in a 48-pin SSOP (DL) package with 0.635 mm pitch, 12.6 mm × 6.2 mm body size, and 1.2 mm max height, optimized for thermal performance (θJA = 95°C/W) and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: L = B→A, H = A→B; enables independent control of each transceiver half |
| 1OE, 2OE | Output-enable input (per 8-bit section) | Active-low enable: L = outputs active, H = outputs in high-impedance isolation state |
| 1A1–1A8, 2A1–2A8 | A-port data inputs/outputs | 3.3-V logic interface side with integrated 22-Ω series resistors and bus-hold |
| 1B1–1B8, 2B1–2B8 | B-port data inputs/outputs | 5-V tolerant interface side supporting TTL-level signaling and higher sink current (64 mA) |
| VCC, GND | Power and ground terminals | Distributed across package (multiple VCC/GND pins) to reduce simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | Supports 5-V input/output voltage levels with 3.3-V VCC - eliminates level-shifter ICs in 3.3-V/5-V bus bridges |
| Integrated 22-Ω series resistors (A port) | Reduces overshoot/undershoot without external components - simplifies layout and improves signal integrity |
| Bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on data inputs - reduces BOM count and board space |
| Ioff and power-up 3-state | Enables hot insertion by disabling outputs during power transitions - prevents bus conflicts and backflow damage |
| Flow-through pinout architecture | Input and output pins aligned on opposite sides - minimizes trace crossing and optimizes routing in dense PCBs |
Applications
| Industrial PLC Backplane Interface | Avionics Data Bus Translator |
|---|---|
|
Use Scenario: Interfacing 3.3-V microcontroller peripherals to legacy 5-V industrial backplane buses in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage-level translation and bus isolation between mixed-voltage subsystems. Use Value: Enables direct connection without discrete level shifters, leveraging bus-hold to stabilize floating control lines during reconfiguration. |
Use Scenario: Translating command/status signals between modern 3.3-V flight management units and older 5-V ARINC-429-compatible avionics modules. IC Role / Device Role / Timing Role: Low-latency, high-reliability transceiver with extended temperature qualification for airborne electronics. Use Value: −55°C to 125°C operation and JEDEC-qualified reliability meet DO-160 environmental test requirements for avionics deployment. |
| Military Vehicle Communication Hub | Ruggedized Test Equipment I/O Module |
|
Use Scenario: Integrating COTS 3.3-V FPGA-based processing cards into legacy 5-V MIL-STD-1553B or RS-485 subsystems in armored vehicle electronics. IC Role / Device Role / Timing Role: Hot-pluggable bus transceiver with Ioff protection for field-replaceable module architectures. Use Value: Ioff and power-up 3-state prevent bus contention during live card swaps, reducing system downtime in mission-critical platforms. |
Use Scenario: Providing configurable 16-bit I/O expansion in portable automated test equipment operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Robust bidirectional data buffer with integrated termination and noise suppression for noisy lab environments. Use Value: Distributed VCC/GND pins and 22-Ω series resistors suppress ground bounce (VOLP < 0.8 V), ensuring clean signal acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH162245IDGGREP | TSSOP-48 package, −40°C to 85°C operating range, identical electrical specs and pinout | Standard commercial temperature grade; lower thermal resistance (θJA = 70°C/W) but narrower temp range | Select when cost, volume availability, or standard industrial temperature range suffices |
| SN54LVTH162245 | QML-qualified military-grade version; same DL package and −55°C to 125°C rating, but with full MIL-PRF-38535 compliance | Required for defense/aerospace programs mandating QML certification and radiation hardness documentation | Select only when formal military qualification and traceable lot-level testing are contractually required |
Compared with CLVTH162245MDLREP, SN74LVTH162245IDGGREP offers better thermal performance in commercial environments, while SN54LVTH162245 adds formal military qualification-neither is pin-compatible without verifying board layout compatibility due to differing package footprints (DL vs DGG).
Availability
CLVTH162245MDLREP is available at Aetrix Electronics and suitable for industrial PLC backplanes, avionics data bus translators, and ruggedized test equipment requiring stable component supply across extended temperature ranges and long lifecycle support.
Supply support for CLVTH162245MDLREP 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, scalability, and industrial-grade qualification.
CLVTH162245MDLREP belongs to TI's Widebus™ family of high-speed bus-interface devices, engineered specifically for robust mixed-voltage communication in harsh-environment applications such as defense, aerospace, and industrial automation.
FAQ
What is the maximum operating voltage for CLVTH162245MDLREP?
The absolute maximum supply voltage (VCC) for CLVTH162245MDLREP is 4.6 V, but it is fully specified for reliable operation within 2.7 V to 3.6 V. Input voltages up to 7 V are permitted on both A and B ports, enabling safe 5-V TTL interfacing while powered from 3.3-V rails. Exceeding 3.6 V on VCC risks violating recommended operating conditions and may impact timing or reliability.
Does CLVTH162245MDLREP support hot-swap functionality?
Yes, CLVTH162245MDLREP supports hot insertion via two complementary features: Ioff circuitry disables outputs when VCC = 0 V to prevent backflow current, and power-up 3-state forces outputs into high-impedance during power ramp-up/down. These features are validated per JEDEC standards and allow safe insertion into live 5-V or 3.3-V backplanes without disrupting bus operation.
How does the bus-hold feature work on CLVTH162245MDLREP?
The bus-hold circuitry on CLVTH162245MDLREP actively maintains undriven A- and B-port inputs at their last valid logic state using ±75 µA dynamic hold current (at VCC = 3 V). This eliminates the need for external pullup/pulldown resistors. Using external resistors with enabled bus-hold is not recommended, as they may conflict with internal biasing and degrade noise immunity.
What is the propagation delay performance of CLVTH162245MDLREP at 3.3 V?
At VCC = 3.3 V and TA = 25°C, CLVTH162245MDLREP achieves typical A→B propagation delays of 2.3 ns (tPLH) and 2.2 ns (tPHL), with maximum values of 3.3 ns. B→A delays are slightly higher (typical 2.8–2.5 ns), reflecting asymmetric drive strength. All values are measured with CL = 50 pF and comply with guaranteed limits across −55°C to 125°C.
Is CLVTH162245MDLREP pin-compatible with other LVTH162245 variants?
CLVTH162245MDLREP shares identical pinout and function mapping with SN74LVTH162245IDGGREP and SN54LVTH162245, but package differences (SSOP-DL vs TSSOP-DGG) require separate PCB footprints. Mechanical dimensions, pitch (0.635 mm vs 0.5 mm), and land patterns are not interchangeable - board redesign is necessary when substituting between DL and DGG packages.
CLVTH162245MDLREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
CLVTH162245MDLREP FAQ
1.How can I place an order for CLVTH162245MDLREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVTH162245MDLREP 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 CLVTH162245MDLREP reliable?
The price and inventory of CLVTH162245MDLREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVTH162245MDLREP is usually 5 days.
3.What payment methods are accepted for CLVTH162245MDLREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVTH162245MDLREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVTH162245MDLREP?
CLVTH162245MDLREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVTH162245MDLREP 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 CLVTH162245MDLREP?
For technical support, including CLVTH162245MDLREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVTH162245MDLREP requirements.
6.How does Aetrix verify that CLVTH162245MDLREP is sourced from the original manufacturer or authorized distributors?
All CLVTH162245MDLREP 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 CLVTH162245MDLREP meets industry standards.
7.What is the process for return or replacement of CLVTH162245MDLREP?
All CLVTH162245MDLREP units undergo pre-shipment inspection (PSI). If there is an issue with CLVTH162245MDLREP, 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 CLVTH162245MDLREP part is unused and in its original packaging.
Return procedure for CLVTH162245MDLREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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