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Texas Instruments SN74LVC162244AZRDR
- Part No.:
- SN74LVC162244AZRDR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVC162244AZRDR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,345
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Product details
Overview
SN74LVC162244AZRDR from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for 1.65 V to 3.6 V operation. It features four independent 4-bit sections, each with active-low output-enable (OE) control, 5.5-V-tolerant inputs, and integrated 26-Ω series output resistors-enabling use in mixed-voltage bus interfacing, memory address driving, and clock distribution in industrial motor drives and network switches.
For engineers reviewing the SN74LVC162244AZRDR datasheet, SN74LVC162244AZRDR pinout, SN74LVC162244AZRDR application, or SN74LVC162244AZRDR equivalent, key selection criteria include Ioff-enabled live insertion support, 4.4 ns max propagation delay at 3.3 V, 12 mA sink capability per output, and compatibility with TSSOP-48 layout constraints and JEDEC Level-1 reflow profiles.
Technical Context
This device implements four independent 4-bit noninverting buffers, each with dedicated active-low OE input and true (noninverted) output logic. All inputs tolerate up to 5.5 V regardless of VCC, enabling seamless level translation from 5-V legacy logic into 3.3-V or lower systems without external components.
The outputs incorporate on-die 26-Ω series termination to suppress overshoot/undershoot, eliminating need for discrete resistors. Ioff circuitry ensures high-impedance isolation when VCC = 0 V, preventing back-drive current during partial power-down-critical for hot-swap and modular system designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - supports single-supply operation across LVC-family voltage tiers including 1.8 V, 2.5 V, and 3.3 V systems |
| Input Voltage Tolerance | Up to 5.5 V - enables direct interface with 5-V TTL/CMOS without level shifters in mixed-voltage buses |
| tpd (Max) | 4.4 ns at VCC = 3.3 V - ensures timing-critical applications like memory address buffering meet sub-5 ns latency budgets |
| IOL (Max) | 12 mA per output - drives standard 50-Ω transmission lines or multiple CMOS loads without external buffers |
| Ioff Current | ±10 µA at VI/VO = 5.5 V, VCC = 0 V - guarantees safe live insertion and prevents back-current damage during power sequencing |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial-grade robustness requirements for automated assembly and field deployment |
| Power Dissipation Cap. | 35 pF per buffer at 3.3 V - quantifies dynamic switching load for accurate power estimation in high-frequency bus drivers |
Pinout & Package
TSSOP-48 package (DGG), body size 12.50 × 6.10 mm, 0.5-mm pitch, 1.2-mm max height, JEDEC Level-1 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable inputs | Independently disable each 4-bit section; tied high via pullup to ensure Hi-Z at power-up |
| 1A1–4A4 | Buffer input terminals (16 total) | 5.5-V tolerant; accept 3.3-V or 5-V logic levels for mixed-mode signal routing |
| 1Y1–4Y4 | Noninverting 3-state output terminals (16 total) | Integrated 26-Ω series resistance reduces edge-induced ringing on PCB traces |
| VCC (Pins 7, 18, 31, 42) | Power supply connections | Four distributed VCC pins minimize IR drop and improve noise immunity across wide bus layouts |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground return paths | Eight GND pins provide low-inductance return for all 16 outputs and support clean signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range | 1.65 V to 3.6 V operation enables drop-in replacement across 1.8 V, 2.5 V, and 3.3 V system rails |
| Mixed-mode signal support | 5.5-V-tolerant inputs allow direct connection to legacy 5-V logic without external level translators |
| On-die output termination | 26-Ω series resistor per output eliminates need for discrete termination, saving board space and BOM cost |
| Ioff partial-power-down | Prevents damaging back-current flow when VCC = 0 V, supporting hot-plug and modular subsystem architectures |
| Low ground bounce | Typical VOLP < 0.8 V at VCC = 3.3 V ensures stable reference for downstream receivers under heavy switching |
Applications
| Motor Drive Control | Network Switch Backplane |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from high-current gate drivers and PWM signal distribution across multi-phase inverters. IC Role / Device Role / Timing Role: 16-bit noninverting buffer with per-section OE control routes timing-critical gate signals while preventing cross-talk between drive stages. Use Value: Integrated 26-Ω output resistors suppress edge overshoot on long PCB traces, reducing EMI and MOSFET stress without added components. |
Use Scenario: Driving parallel address/data buses between ASICs and packet buffer SRAM in Layer-2/Layer-3 switches. IC Role / Device Role / Timing Role: Four independent 4-bit buffers isolate CPU-side and memory-side buses, enabling selective bandwidth allocation per port group. Use Value: 4.4 ns max tpd at 3.3 V ensures setup/hold timing margins are maintained at 100+ MHz bus speeds. |
| Industrial Power Infrastructure | Test & Measurement Equipment |
Use Scenario: Interfacing FPGA I/O banks to isolated analog front-ends and digital power controllers in AC/DC converters and UPS systems. IC Role / Device Role / Timing Role: Level-translating buffer bridges 5-V sensor interfaces and 3.3-V FPGA logic while maintaining signal integrity across noisy power domains. Use Value: Ioff protection prevents latch-up during brown-out conditions when auxiliary rails power down before main logic supply. |
Use Scenario: Routing calibration signals, trigger lines, and DUT control commands between host controller and modular instrument modules. IC Role / Device Role / Timing Role: 16-bit 3-state driver enables flexible bus sharing among multiple test instruments using shared backplane resources. Use Value: 5.5-V input tolerance allows direct connection to legacy GPIB or TTL-compatible instruments without voltage translation ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Same pinout and function but lacks Ioff specification; no guaranteed 0-V isolation | Not suitable for hot-swap or partial-power-down systems requiring back-drive protection | Select SN74LVC162244AZRDR where Ioff compliance is required for safety-critical power sequencing |
| 74ALVC162244PW | Higher drive strength (24 mA), wider VCC range (1.65–3.6 V), same 48-pin TSSOP package | Better suited for driving heavier capacitive loads (>50 pF) or longer traces with higher slew rate demands | Choose 74ALVC162244PW only if additional output current headroom is needed beyond 12 mA per pin |
Compared with SN74LVC162244AZRDR, SN74LVC16244ADGGR omits Ioff protection-making it unsuitable for live-insertion systems-while 74ALVC162244PW offers higher drive but identical footprint and voltage compatibility for demanding signal integrity cases.
Availability
SN74LVC162244AZRDR is available at Aetrix Electronics and suitable for industrial motor drives, network switch backplanes, and test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for SN74LVC162244AZRDR 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 logic solutions, with decades of innovation in high-reliability interface and power management ICs.
The SN74LVC162244AZRDR belongs to TI's Widebus™ family of advanced logic devices, engineered specifically to enhance density and performance of 3-state memory address drivers, clock distribution networks, and bus-oriented transceivers in industrial and communications infrastructure.
FAQ
What is the maximum operating temperature for SN74LVC162244AZRDR?
The SN74LVC162244AZRDR is rated for operation from –40°C to +125°C ambient temperature, meeting industrial-grade thermal requirements. This range is validated across all recommended VCC conditions (1.65 V to 3.6 V) and supports deployment in enclosed motor drive enclosures and telecom base station hardware without derating.
Does SN74LVC162244AZRDR support 5-V input signals when powered at 3.3 V?
Yes, SN74LVC162244AZRDR accepts input voltages up to 5.5 V regardless of VCC level-including at 3.3 V-enabling direct interfacing with 5-V TTL or CMOS logic without external level shifters. This mixed-mode capability is explicitly specified in the Recommended Operating Conditions table of the datasheet.
How does the Ioff feature of SN74LVC162244AZRDR protect the system during power-down?
The Ioff circuitry in SN74LVC162244AZRDR disables all outputs and isolates inputs when VCC = 0 V, limiting leakage current to ±10 µA. This prevents damaging back-current flow from live 5-V buses into unpowered sections-a critical safeguard for hot-swap modules and systems with staggered power sequencing.
Can SN74LVC162244AZRDR be used as a single 16-bit buffer, or only as four 4-bit sections?
SN74LVC162244AZRDR supports both configurations: tying all four OE inputs together enables full 16-bit operation, while independent OE control allows dynamic partitioning into four 4-bit sections. The functional block diagram and truth table in the datasheet confirm this dual-mode flexibility for adaptive bus architecture design.
What is the purpose of the 26-Ω series resistance integrated into each output of SN74LVC162244AZRDR?
The 26-Ω on-die series resistor in each output of SN74LVC162244AZRDR dampens signal edge rates to reduce overshoot and undershoot on PCB traces, minimizing EMI and improving signal integrity-especially in high-speed, lightly loaded bus environments. This eliminates the need for external termination resistors and associated layout area.
SN74LVC162244AZRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
SN74LVC162244AZRDR FAQ
1.How can I place an order for SN74LVC162244AZRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC162244AZRDR 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 SN74LVC162244AZRDR reliable?
The price and inventory of SN74LVC162244AZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC162244AZRDR is usually 5 days.
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Once your SN74LVC162244AZRDR 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 SN74LVC162244AZRDR?
For technical support, including SN74LVC162244AZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC162244AZRDR requirements.
6.How does Aetrix verify that SN74LVC162244AZRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVC162244AZRDR 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 SN74LVC162244AZRDR meets industry standards.
7.What is the process for return or replacement of SN74LVC162244AZRDR?
All SN74LVC162244AZRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC162244AZRDR, 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 SN74LVC162244AZRDR part is unused and in its original packaging.
Return procedure for SN74LVC162244AZRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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