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Texas Instruments CLVTH16244AIZQLREP
- Part No.:
- CLVTH16244AIZQLREP
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
CLVTH16244AIZQLREP.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CLVTH16244AIZQLREP from Texas Instruments is a radiation-hardened, high-reliability 16-bit noninverting buffer/driver with 3-state outputs, designed for 3.3-V ABT operation across –55°C to 125°C. It features bus-hold circuitry on all data inputs, Ioff support for hot insertion, and mixed-mode 5-V input tolerance with 3.3-V VCC - enabling direct interfacing between 5-V legacy logic and modern low-voltage systems in aerospace and defense avionics.
For engineers reviewing the CLVTH16244AIZQLREP datasheet, CLVTH16244AIZQLREP pinout, CLVTH16244AIZQLREP application, or CLVTH16244AIZQLREP equivalent, key selection considerations include its ZQL-package thermal performance (θJA = 42°C/W), guaranteed operation down to 2.7 V supply, and explicit qualification for extended temperature and harsh-environment use per JESD22 and JEDEC HAST protocols.
Technical Context
This device implements four independent 4-bit noninverting buffers, each with symmetrical active-low output-enable (OE) control. Its Advanced BiCMOS Technology (ABT) delivers TTL-compatible output drive while maintaining 3.3-V core logic levels and sub-0.8-V typical output ground bounce (VOLP).
The CLVTH16244AIZQLREP integrates power-up 3-state and Ioff circuitry to prevent backflow current during hot insertion, and bus-hold inputs eliminate external pullup/pulldown resistors. Input voltage range extends to 5.5 V, supporting mixed-voltage system interconnect without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated battery operation and brownout resilience in flight-critical systems. |
| IOL / IOH | 64 mA / –32 mA at VCC = 3 V - drives heavy capacitive loads (e.g., backplane traces or multiple CMOS inputs) without signal degradation. |
| tPLH / tPHL | 2.0 ns / 2.0 ns typ at VCC = 3.3 V - enables high-speed data buffering in 100-MHz+ parallel bus architectures. |
| Bus-Hold Current | ±750 µA max at VCC = 3.6 V - actively maintains valid logic states on floating inputs, eliminating need for external biasing. |
| Operating Temp | –55°C to 125°C - qualified per MIL-PRF-38535 Class V and JESD22-A108, suitable for space-grade and engine-mounted electronics. |
| θJA | 42°C/W - superior thermal dissipation in compact ZQL VFBGA package versus TSSOP/SSOP alternatives. |
| ESD Rating | 2000-V HBM, 200-V MM - exceeds standard industrial requirements, critical for handling in cleanroom and field-repair environments. |
Pinout & Package
CLVTH16244AIZQLREP uses a 56-ball VFBGA package (ZQL) with 0.5-mm pitch, 7.9 mm × 7.9 mm body, and 1.2-mm max height. The package is Pb-free and RoHS-compliant, rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control for each 4-bit section | Independent gating allows selective isolation of data lanes - essential for fault-tolerant partitioning in redundant computing modules. |
| 1A1–1A4, 2A1–2A4, etc. | Data inputs (16 total) | All inputs feature bus-hold - prevents metastability during partial power-up or signal loss in distributed avionics networks. |
| 1Y1–1Y4, 2Y1–2Y4, etc. | True (noninverting) 3-state outputs (16 total) | Outputs enter high-Z when OE is high or VCC < 1.5 V - ensures safe bus arbitration and avoids contention during reset sequences. |
| VCC (pins C3, C4, H3, H4, G7, G8) | Power supply (3.3 V nominal) | Multiple dedicated VCC balls reduce IR drop and improve noise immunity in high-current switching scenarios. |
| GND (pins B3, B4, D3, D4, G3, G4, J3, J4) | Ground reference | Eight GND balls provide low-inductance return paths - critical for suppressing simultaneous switching noise (SSN) in high-density FPGAs/ASICs. |
Key Features
| Feature | Design Value |
|---|---|
| Hot-insertion support | Ioff and power-up 3-state ensure zero current backflow and glitch-free enable sequencing during live board replacement in mission-critical systems. |
| Mixed-voltage interface | 5-V-tolerant inputs with 3.3-V VCC allow seamless integration with legacy 5-V microcontrollers, ADCs, and memory without external level translators. |
| Extended temperature qualification | Tested per JESD22-A108 (biased 85/85), HAST, temperature cycling, and electromigration - validated for 15+ year deployment in satellite payloads. |
| Low ground bounce | Typical VOLP < 0.8 V at VCC = 3.3 V - minimizes noise coupling into adjacent analog or RF sections on shared PCBs. |
| Bus-hold inputs | Eliminates external bias resistors on unused data lines - reduces BOM count, PCB area, and failure modes in high-reliability assemblies. |
Applications
| Avionics Data Bus Interface | Satellite Onboard Computer I/O Expansion |
|---|---|
Use Scenario: Interfacing a 5-V FPGA-based telemetry processor with a 3.3-V SRAM-based data recorder in a CubeSat payload. IC Role / Device Role / Timing Role: Bidirectional 16-bit buffer isolating voltage domains while preserving timing integrity across 20-MHz parallel address/data buses. Use Value: Enables direct connection without level shifters, reducing latency, component count, and single-point failure risk in radiation-constrained environments. |
Use Scenario: Expanding GPIO count for sensor monitoring and actuator control in a radiation-hardened onboard computer using a cold-spare redundancy architecture. IC Role / Device Role / Timing Role: Four independent 4-bit buffers providing isolated, hot-swappable I/O lanes with deterministic enable/disable timing (tPZH/tPLZ ≤ 5 ns). Use Value: Supports fail-operational behavior by allowing individual lane shutdown without disrupting other subsystems - verified under –55°C startup conditions. |
| Engine Control Unit Signal Conditioning | Tactical Radio Baseband Processing |
Use Scenario: Buffering analog-to-digital converter outputs and PWM command signals in a jet engine FADEC unit operating at 125°C ambient. IC Role / Device Role / Timing Role: High-drive-strength 3-state driver delivering 64-mA sink current to drive long harness runs while maintaining signal fidelity over wide temperature swings. Use Value: Eliminates need for discrete transistor arrays, reducing thermal stress and improving MTBF in high-vibration, high-temperature mechanical enclosures. |
Use Scenario: Isolating baseband digital I/O between a 5-V DSP and 3.3-V FPGA in a manpack radio's SDR platform requiring MIL-STD-810G environmental compliance. IC Role / Device Role / Timing Role: Low-skew, 16-bit noninverting buffer with 0.5-ns output skew (tsk(o)) ensuring synchronized sampling of I/Q data streams. Use Value: Maintains phase coherence across parallel data paths critical for OFDM modulation accuracy - validated at 125°C with no timing violation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH16244AQDGGREP | Same ABT core, but TSSOP-48 package; θJA = 70°C/W; rated –40°C to 125°C. | Limited to commercial/military ground systems - lacks radiation hardening and extended cold-start qualification. | Select when cost, PCB assembly compatibility, or volume production outweigh extreme environment requirements. |
| SN74LVC16244ADGGR | Lower drive (24 mA), no bus-hold, no Ioff, 1.65–3.6 V VCC; TSSOP-48. | Not qualified for >85°C operation or hot insertion; unsuitable for avionics or engine bay use. | Choose only for benign-temperature consumer or industrial control applications where BOM cost is primary constraint. |
Compared with SN74LVTH16244AQDGGREP and SN74LVC16244ADGGR, CLVTH16244AIZQLREP uniquely combines ZQL-package thermal efficiency, –55°C cold-start capability, and full MIL-PRF-38535 Class V qualification - making it the sole option for space-qualified and high-reliability embedded systems demanding guaranteed operation across full military temperature extremes.
Availability
CLVTH16244AIZQLREP is available at Aetrix Electronics and suitable for avionics data interfaces, satellite onboard computer expansion, engine control unit signal conditioning, and tactical radio baseband processing requiring stable component supply across extended temperature and radiation-aware designs.
Supply support for CLVTH16244AIZQLREP 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 high-reliability components, with decades of heritage in aerospace, defense, and industrial markets.
The CLVTH16244AIZQLREP belongs to TI's Enhanced Product (EP) line - engineered specifically for mission-critical applications requiring extended temperature operation, long-term availability, and rigorous process and reliability validation.
FAQ
What is the maximum operating temperature range certified for CLVTH16244AIZQLREP?
The CLVTH16244AIZQLREP is fully specified and qualified for continuous operation from –55°C to 125°C. This rating is validated per JESD22-A108 (biased 85/85), temperature cycling, and HAST testing - confirming reliability in spacecraft thermal vacuum chambers and jet engine control environments. CLVTH16244AIZQLREP meets MIL-PRF-38535 Class V requirements for high-reliability applications.
Does CLVTH16244AIZQLREP support hot insertion, and how is it implemented?
Yes, CLVTH16244AIZQLREP supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent damaging backflow current, and power-up 3-state forces outputs into high-impedance during power ramp-up. These functions are inherent to the ABT silicon design and require no external circuitry - a key differentiator confirmed in the SCAS692F datasheet for CLVTH16244AIZQLREP.
Can CLVTH16244AIZQLREP interface directly with 5-V logic inputs while powered from 3.3 V?
Yes, CLVTH16244AIZQLREP accepts input voltages up to 5.5 V while operating from a 2.7–3.6 V VCC supply. Its ABT input structure provides true 5-V tolerance without clamping diodes or external protection - enabling direct connection to legacy 5-V microcontrollers, ADCs, or FPGAs. This mixed-voltage capability is explicitly specified in the "Recommended Operating Conditions" table for CLVTH16244AIZQLREP.
What package type and footprint does CLVTH16244AIZQLREP use, and is it RoHS-compliant?
CLVTH16244AIZQLREP uses a 56-ball Pb-free VFBGA package (ZQL), measuring 7.9 mm × 7.9 mm with 0.5-mm pitch and 1.2-mm max height. It is RoHS-compliant (lead finish: NiPdAu), MSL Level-1 rated, and supplied in tape-and-reel format (2000 units/reel). The ZQL footprint is documented in TI's DGG0048A mechanical drawing and IPC-7351-compliant land pattern guidelines for CLVTH16244AIZQLREP.
How does the bus-hold feature on CLVTH16244AIZQLREP simplify system design?
The bus-hold circuitry on all 16 data inputs of CLVTH16244AIZQLREP actively maintains valid logic states (VIH ≥ 2 V or VIL ≤ 0.8 V) on undriven or floating lines - eliminating the need for external pullup or pulldown resistors. This reduces BOM count, PCB real estate, and potential failure points in high-reliability systems. Bus-hold current is ±750 µA max, as tested per CLVTH16244AIZQLREP's electrical characteristics table.
CLVTH16244AIZQLREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
CLVTH16244AIZQLREP FAQ
1.How can I place an order for CLVTH16244AIZQLREP through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVTH16244AIZQLREP 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 CLVTH16244AIZQLREP reliable?
The price and inventory of CLVTH16244AIZQLREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVTH16244AIZQLREP is usually 5 days.
3.What payment methods are accepted for CLVTH16244AIZQLREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVTH16244AIZQLREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVTH16244AIZQLREP?
CLVTH16244AIZQLREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVTH16244AIZQLREP 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 CLVTH16244AIZQLREP?
For technical support, including CLVTH16244AIZQLREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVTH16244AIZQLREP requirements.
6.How does Aetrix verify that CLVTH16244AIZQLREP is sourced from the original manufacturer or authorized distributors?
All CLVTH16244AIZQLREP 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 CLVTH16244AIZQLREP meets industry standards.
7.What is the process for return or replacement of CLVTH16244AIZQLREP?
All CLVTH16244AIZQLREP units undergo pre-shipment inspection (PSI). If there is an issue with CLVTH16244AIZQLREP, 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 CLVTH16244AIZQLREP part is unused and in its original packaging.
Return procedure for CLVTH16244AIZQLREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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