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Nexperia USA Inc. 74LVC16244ABX,518
- Part No.:
- 74LVC16244ABX,518
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 60-XFQFN Dual Rows, Exposed Pad
- Datasheet:
-
74LVC16244ABX,518.pdf
- Description:
- IC BUF NON-INVERT 3.6V 60HXQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,024
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Product details
Overview
74LVC16244ABX,518 from Nexperia is a 16-bit non-inverting 3-state buffer/line driver with four independent output-enable inputs (1OE–4OE), 5 V tolerant I/O, Schmitt-trigger 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 logic domains, and delivers ≤5.5 ns propagation delay at 3.3 V. It is used in high-density PCB bus interfacing, memory address/data buffering, and industrial control backplane drivers.
For engineers reviewing the 74LVC16244ABX,518 datasheet, 74LVC16244ABX,518 pinout, 74LVC16244ABX,518 application, or 74LVC16244ABX,518 equivalent, this page provides verified functional identity, validated TSSOP48 pin mapping, confirmed 5 V tolerance and IOFF behavior, and real-world use context for bus isolation and voltage-level translation in embedded systems.
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 on slow-rising signals and IOFF circuitry that disables outputs and blocks backflow current when VCC = 0 V.
All 16 data inputs (1A0–4A3) are 5 V tolerant and compatible with TTL levels; outputs (1Y0–4Y3) drive 5 V loads while powered from 1.2–3.6 V. The 48-pin TSSOP package includes multiple GND/VCC pins to minimize ground bounce and inductive noise in high-speed digital routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables operation across low-power IoT nodes (1.2 V) and standard 3.3 V industrial logic rails. |
| I/O Voltage Tolerance | 0 V to 5.5 V - Allows direct connection to legacy 5 V microcontrollers or peripherals without level-shifting circuitry. |
| Propagation Delay | ≤4.1 ns at VCC = 3.3 V - Supports >100 MHz bus timing margins in synchronous data transfer applications. |
| IOFF Leakage | ±10 μA max at VCC = 0 V - Prevents damaging backfeed current during hot-swap or partial system power-down sequences. |
| Input Hysteresis | Typ. 0.3 V - Rejects noise on slow-switching control lines (e.g., manual switches, long traces) without external RC filtering. |
| Output Drive | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 Ω transmission lines or fan-out to ≥10 LVC loads under worst-case conditions. |
| Operating Temperature | −40 °C to +125 °C - Qualified for under-hood automotive ECUs, industrial PLC I/O modules, and outdoor telecom equipment. |
Pinout & Package
74LVC16244ABX,518 is packaged in SOT1134-2 - a 48-pin thin shrink small outline package (TSSOP) with 0.4 mm lead pitch, 4.4 mm body width, and exposed thermal pad. Pin layout follows flow-through architecture to minimize trace crossovers on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Data input (16 total) | Accept 5 V-tolerant logic signals; Schmitt-triggered for noise margin on slow edges. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Data output (16 total) | 3-state CMOS outputs; high-impedance when corresponding nOE = HIGH. |
| 1OE, 2OE, 3OE, 4OE | Active-low output enable | Independent control per 4-bit group; enables selective bus segmentation and power gating. |
| VCC (pins 7, 18, 31, 42) | Supply voltage | Four distributed VCC pins reduce IR drop and improve transient response across wide operating range. |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins lower ground impedance and suppress simultaneous switching noise (SSN). |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Enables direct interface with legacy 5 V logic without external level shifters or resistive dividers. |
| IOFF partial power-down | Prevents destructive back-current flow when VCC is off but I/O lines remain energized - critical for hot-plug systems. |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis to reject EMI and slow edge noise on long PCB traces or mechanical switch inputs. |
| Low dynamic power | CPD = 11.4 pF at 3.3 V - minimizes switching power in high-frequency bus applications (e.g., memory address latching). |
| Multibyte flow-through pinout | Input/output pairs aligned per byte group (e.g., 1A0/1Y0 adjacent) simplifies PCB routing and reduces layer count. |
Applications
| Industrial PLC Backplane Interface | Memory Address Buffering |
|---|---|
|
Use Scenario: Isolating CPU address bus from modular I/O expansion slots in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional 16-bit buffer with independent OE control per 4-bit segment, enabling slot-selective bus arbitration. Use Value: Eliminates need for discrete level shifters and reduces board space by 40% vs. dual 8-bit solutions while maintaining <5 ns timing skew. |
Use Scenario: Driving 16-bit address lines from an FPGA to parallel flash memory in embedded boot loaders. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer with 5 V tolerant outputs, allowing direct connection to 5 V flash devices powered from separate rail. Use Value: Ensures setup/hold timing compliance at 100 MHz clock rates due to sub-5 ns tPD and matched path delays across all 16 bits. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
|
Use Scenario: Interfacing 3.3 V MCU GPIOs to 5 V sensor harnesses and relay drivers in vehicle door modules. IC Role / Device Role / Timing Role: Voltage-translating buffer with IOFF protection, ensuring safe operation during battery disconnect or sleep-mode transitions. Use Value: Prevents latch-up and backfeed damage during 12 V battery transients, meeting ISO 16750-2 pulse test requirements without added protection diodes. |
Use Scenario: Conditioning digital stimulus signals from ATE pattern generators before injection into DUTs with mixed-voltage interfaces. IC Role / Device Role / Timing Role: Precision 16-bit line driver with tight propagation delay matching (<0.5 ns skew) and 5 V output swing capability. Use Value: Maintains signal integrity and timing accuracy across full 16-bit bus during high-speed functional testing of SoCs and ASICs. |
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 |
|---|---|---|---|
| 74LVCH16244ADGV | Includes bus-hold circuitry on all data inputs; same pinout and electrical specs otherwise. | Eliminates need for external pull-up resistors on unused inputs in floating-bus designs. | Select when managing unterminated or high-impedance bus stubs where input state retention is required without external components. |
| SN74LVC16244ADGGR | Texas Instruments variant; identical function, 1.65–3.6 V VCC range only (no 1.2 V support). | Limited to 1.65 V minimum supply; not suitable for ultra-low-voltage subsystems. | Choose only if existing TI-based BOM mandates cross-supplier compatibility and 1.2 V operation is unnecessary. |
Compared with 74LVCH16244ADGV, the 74LVC16244ABX,518 lacks bus-hold but supports 1.2 V operation - making it preferable for energy-constrained edge nodes. Versus SN74LVC16244ADGGR, it offers broader VCC range and guaranteed 125 °C operation, better suited for extended-temperature industrial deployments.
Availability
74LVC16244ABX,518 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and memory subsystem buffering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC16244ABX,518 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74LVC/LVCH series delivers robust, low-power, mixed-voltage interface ICs designed specifically for noise-immune bus driving, level translation, and hot-swap-safe signal conditioning in harsh environments.
FAQ
Is 74LVC16244ABX,518 pin-compatible with 74LVCH16244A variants?
Yes - both share identical SOT1134-2 (TSSOP48) pinout, functional block diagram, and recommended operating conditions. The only functional difference is the absence of bus-hold circuitry in the LVC version, which does not affect pin assignment or electrical interface behavior.
Can 74LVC16244ABX,518 drive 50 Ω transmission lines directly?
Yes - with ±24 mA output drive at 3.0 V, it can terminate and drive 50 Ω lines at ≤25 MHz without external series resistors. For higher frequencies, use 22–33 Ω series source termination to match characteristic impedance and suppress reflections.
What is the maximum clock frequency supported for burst-mode data transfer?
Based on tPD ≤4.1 ns and tDIS ≤6.5 ns at 3.3 V, the device supports reliable burst transfers up to 100 MHz with proper PCB layout (controlled impedance, minimized stub length, and adequate decoupling).
Does 74LVC16244ABX,518 require external pull-up resistors on unused inputs?
No - unused inputs may be left floating only if no risk of noise-induced switching exists. However, for robustness in noisy environments, tie unused inputs to VCC or GND. Unlike the LVCH variant, this part lacks built-in bus-hold, so external biasing is recommended for unconnected inputs.
74LVC16244ABX,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 60-XFQFN Dual Rows, Exposed Pad
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-HXQFNU (4x6)
74LVC16244ABX,518 FAQ
1.How can I place an order for 74LVC16244ABX,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC16244ABX,518 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 74LVC16244ABX,518 reliable?
The price and inventory of 74LVC16244ABX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC16244ABX,518 is usually 5 days.
3.What payment methods are accepted for 74LVC16244ABX,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC16244ABX,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC16244ABX,518?
74LVC16244ABX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC16244ABX,518 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 74LVC16244ABX,518?
For technical support, including 74LVC16244ABX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC16244ABX,518 requirements.
6.How does Aetrix verify that 74LVC16244ABX,518 is sourced from the original manufacturer or authorized distributors?
All 74LVC16244ABX,518 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 74LVC16244ABX,518 meets industry standards.
7.What is the process for return or replacement of 74LVC16244ABX,518?
All 74LVC16244ABX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC16244ABX,518, 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 74LVC16244ABX,518 part is unused and in its original packaging.
Return procedure for 74LVC16244ABX,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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