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NXP Semiconductors 74LVCH162244ADL,11
- Part No.:
- 74LVCH162244ADL,11
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
74LVCH162244ADL,11.pdf
- Description:
- IC BUFF DVR TRI-ST 16BIT 48SSOP
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Inventory:9,434
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Product details
Overview
74LVCH162244ADL,11 from Nexperia is a 16-bit 3-state buffer/line driver with integrated 30 Ω series termination resistors, 5 V-tolerant I/O, bus hold on all data inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and is rated for -40 °C to +125 °C. Used in high-speed parallel bus interfaces requiring signal integrity and input state retention.
For engineers reviewing the 74LVCH162244ADL,11 datasheet, 74LVCH162244ADL,11 pinout, 74LVCH162244ADL,11 application, or 74LVCH162244ADL,11 equivalent, this device delivers deterministic 3-state control, Schmitt-trigger input noise immunity, low propagation delay (≤7.5 ns at 3.3 V), bus-hold functionality eliminating external pull-ups, and robust ESD protection (HBM >2000 V, CDM >1000 V).
Technical Context
This device implements four independent 4-bit buffer sections, each controlled by its own active-low output enable (1OE–4OE). Each section features Schmitt-trigger inputs for noise immunity and internal 30 Ω series resistors per output to dampen reflections on transmission lines.
The IOFF circuit ensures outputs enter high-impedance state during power-down, blocking backflow current, while bus hold maintains valid logic states on unused data inputs without external components - a key differentiator from the non-H variant (74LVC162244A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains. |
| I/O Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V signals without level shifters in mixed-voltage systems. |
| Propagation Delay (tpd) | ≤7.5 ns at VCC = 3.3 V - Supports >100 MHz bus operation with timing margin. |
| Output Termination | 30 Ω series resistor per output - Reduces overshoot/ringing on PCB traces up to 15 cm. |
| Bus Hold Current | ±60 μA to ±75 μA (VCC = 3.0 V) - Maintains stable logic state on floating inputs without external resistors. |
| IOFF Leakage | ≤±20 μA at VCC = 0 V - Prevents damaging back-current when powered down in hot-swap or partial-power scenarios. |
| ESD Rating (HBM) | >2000 V - Meets JEDEC JS-001 Class 2 for robust handling in manufacturing and field environments. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch. Pin 1 index marked; thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable | Each controls 4 outputs (e.g., 1OE enables Y0–Y3); HIGH forces high-impedance state. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Data inputs (16 total) | All feature bus hold; tolerate 0–5.5 V regardless of VCC. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Data outputs (16 total) | Each includes 30 Ω series termination; 5 V tolerant; 3-state capable. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four dedicated supply pins minimize IR drop and improve noise immunity across wide bus. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight ground pins reduce ground bounce and support clean switching of all 16 outputs simultaneously. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30 Ω series termination | Eliminates need for discrete 30 Ω resistors per line, saving 16 passives and PCB area. |
| Bus hold on all data inputs | Maintains last-valid logic state on unused inputs - removes requirement for 16 external pull-up/down resistors. |
| IOFF partial power-down | Prevents backflow current when VCC = 0 V, enabling safe insertion/removal in live backplanes or hot-swap modules. |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis - tolerates slow-rising/falling edges (e.g., from mechanical switches or long cables) without chatter. |
| 5 V-tolerant I/O | Accepts 0–5.5 V input signals and drives 5 V loads while powered from 1.2–3.6 V - simplifies voltage translation in mixed-supply systems. |
Applications
| Industrial PLC Backplane Interface | Automated Test Equipment (ATE) Signal Conditioning |
|---|---|
Use Scenario: Driving 16-bit parallel address/data bus between FPGA and legacy I/O modules in modular PLC chassis. IC Role / Device Role / Timing Role: Bidirectional buffer with 30 Ω termination and bus hold, ensuring signal integrity over 10 cm PCB traces and preventing floating inputs during module hot-swap. Use Value: Eliminates 32 discrete termination resistors and 16 pull-ups, reducing BOM count and layout complexity while meeting IEC 61000-4-2 ESD immunity requirements. |
Use Scenario: Level-shifting and driving 16-bit DUT control bus in ATE rack where DUTs operate at 5 V but controller runs at 3.3 V. IC Role / Device Role / Timing Role: Voltage-translating buffer with fast enable/disable (≤7.5 ns tpd, ≤6.0 ns ten) and IOFF protection during test sequence power cycling. Use Value: Enables seamless 3.3 V ↔ 5 V interfacing without external level shifters; IOFF prevents damage when DUT power rails are sequenced independently. |
| Medical Imaging Data Acquisition Board | Communications Baseband Processing Module |
Use Scenario: Buffering parallel ADC output bus (16-bit, 20 MSPS) from analog front-end to FPGA in portable ultrasound system. IC Role / Device Role / Timing Role: Low-noise, low-skew line driver with Schmitt-trigger inputs rejecting EMI from adjacent RF circuits and 30 Ω termination suppressing edge ringing. Use Value: Maintains <1 LSB timing jitter on sampled data; bus hold prevents invalid states during FPGA configuration gaps, avoiding acquisition corruption. |
Use Scenario: Interfacing baseband processor (1.8 V core) to multi-channel DAC/ADC array (3.3 V I/O) in wireless infrastructure transceiver. IC Role / Device Role / Timing Role: Synchronized 16-bit buffer with per-section OE control, allowing dynamic channel enable/disable without disturbing active data paths. Use Value: Enables per-channel power gating via OE pins; 30 Ω termination minimizes inter-symbol interference on 100 MHz DDR-style bus, preserving SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC162244ADGG | No bus hold; identical pinout, supply range, and termination; lower ICC (0.1 μA vs 0.2 μA typical). | Requires external pull-ups on unused inputs; unsuitable for unpopulated bus segments or hot-swap. | Select when cost sensitivity outweighs bus hold benefit and all inputs are actively driven. |
| SN74ALVC162244DGGR | Texas Instruments part; same 16-bit 3-state function, 30 Ω termination, 1.65–3.6 V supply; no bus hold; HBM ESD = 2000 V. | Lacks IOFF and bus hold; requires external clamping for 5 V tolerance; different thermal derating curve. | Use only if TI's qualification path or existing design reuse mandates TI sourcing; verify layout compatibility with TSSOP48 footprint. |
Compared with 74LVC162244ADGG, the 74LVCH162244ADL,11 adds bus hold and IOFF at minimal cost premium - critical for reliability in uncontrolled input environments. Against SN74ALVC162244DGGR, it offers superior mixed-voltage robustness and built-in power-down safety, reducing system-level protection components.
Availability
74LVCH162244ADL,11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automated test equipment, medical imaging data acquisition, and communications baseband processing requiring stable component supply across extended temperature ranges (-40 °C to +125 °C).
Supply support for 74LVCH162244ADL,11 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
Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.
The 74LVCH162244A belongs to Nexperia's advanced LVC/H logic family, designed specifically for high-speed, low-power, mixed-voltage parallel bus interfacing in space-constrained and thermally demanding environments.
FAQ
Does 74LVCH162244ADL,11 support hot-swap operation?
Yes - its IOFF circuitry disables outputs and limits power-off leakage to ≤±20 μA when VCC = 0 V, preventing backflow current into powered downstream circuitry during live insertion or removal in backplane or modular systems.
Can 74LVCH162244ADL,11 drive 50 Ω transmission lines directly?
No - its integrated 30 Ω series resistor is intended for damping on unterminated or lightly loaded PCB traces (e.g., FR-4 microstrip up to 15 cm). For true 50 Ω source termination, an external 20 Ω resistor in series is required to reach 50 Ω total.
How does bus hold behave when VCC is below 1.2 V?
Bus hold is disabled below VCC = 1.2 V per specification. At VCC = 0 V, bus hold current drops to zero; the input floats electrically. IOFF remains active, holding outputs in high-impedance state regardless of input voltage.
Is the 30 Ω termination resistor value process-trimmed or fixed?
The 30 Ω value is process-controlled and specified as typical across voltage/temperature - not trimmed. Nexperia guarantees it within ±20 % over -40 °C to +125 °C per datasheet Table 7, making it suitable for impedance-matching within standard PCB trace tolerances.
74LVCH162244ADL,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVCH
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74LVCH162244ADL,11 FAQ
1.How can I place an order for 74LVCH162244ADL,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH162244ADL,11 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 74LVCH162244ADL,11 reliable?
The price and inventory of 74LVCH162244ADL,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH162244ADL,11 is usually 5 days.
3.What payment methods are accepted for 74LVCH162244ADL,11?
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4.How is shipping managed for 74LVCH162244ADL,11?
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Once your 74LVCH162244ADL,11 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 74LVCH162244ADL,11?
For technical support, including 74LVCH162244ADL,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH162244ADL,11 requirements.
6.How does Aetrix verify that 74LVCH162244ADL,11 is sourced from the original manufacturer or authorized distributors?
All 74LVCH162244ADL,11 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 74LVCH162244ADL,11 meets industry standards.
7.What is the process for return or replacement of 74LVCH162244ADL,11?
All 74LVCH162244ADL,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH162244ADL,11, 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 74LVCH162244ADL,11 part is unused and in its original packaging.
Return procedure for 74LVCH162244ADL,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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