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NXP Semiconductors 74ALVT162240DGG,51
- Part No.:
- 74ALVT162240DGG,51
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVT162240DGG,51.pdf
- Description:
- IC BUFFER INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,124
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Product details
Overview
74ALVT162240DGG,51 from NXP Semiconductors (formerly Philips) is a 16-bit inverting 3-State buffer/driver with integrated 30Ω series output termination, designed for 2.5V/3.3V VCC operation and 5V I/O tolerance. It features four independent 3-State output enables (1OE–4OE), bus-hold inputs eliminating external pull-ups, and ±12mA drive capability - ideal for high-speed memory address and clock bus driving in mixed-voltage systems.
For engineers reviewing the 74ALVT162240DGG,51 datasheet, 74ALVT162240DGG,51 pinout, 74ALVT162240DGG,51 application, or 74ALVT162240DGG,51 equivalent, this page delivers verified electrical parameters, TSSOP-48 package mapping, bus-hold behavior, propagation delay (2.2 ns typical at 3.3V), and real-world interface compatibility with 5V buses without level shifters.
Technical Context
The 74ALVT162240DGG,51 implements a BiCMOS architecture enabling dual-supply operation (2.3–2.7V or 3.0–3.6V) while maintaining TTL-compatible input thresholds and 5V-tolerant I/O. Its output stage integrates matched 30Ω series resistors in both pull-up and pull-down paths to suppress transmission-line ringing without external components.
Four dedicated output enables (1OE–4OE) provide granular 4-bit group control over the 16 outputs, supporting partial bus isolation. Bus-hold circuitry on all data inputs maintains valid logic states on floating inputs with ±75 µA hold current at 3.0V, eliminating need for external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3–2.7V or 3.0–3.6V - supports dual-voltage system integration without regulator switching |
| Propagation Delay (tPLH/tPHL) | 2.2 ns typical at 3.3V - enables >400 MHz bus toggle rates in point-to-point configurations |
| Output Drive | ±12 mA - sufficient to drive 50Ω transmission lines directly with controlled edge rates |
| Input Voltage Range | 0–5.5 V - allows direct interfacing to 5V logic without level translation |
| Bus-Hold Current | ±75 µA at VCC = 3.0V - actively retains last-valid logic state on unconnected inputs |
| Termination Resistance | 30 Ω series per output - eliminates need for discrete 33Ω resistors in source-series termination |
| I/O ESD Protection | >2000 V HBM - meets MIL-STD-883 Class 3A requirements for board-level robustness |
Pinout & Package
74ALVT162240DGG,51 is housed in a 48-pin plastic Thin Shrink Small Outline Package (TSSOP), SOT362-1, 6.1 mm body width, lead pitch 0.5 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 48, 25, 24 | 1OE, 2OE, 3OE, 4OE | Active-low output enables - each controls four consecutive Y outputs (e.g., 1OE enables 1Y0–1Y3) |
| 47, 46, 44, 43, 41, 40, 38, 37, 36, 35, 33, 32, 30, 29, 27, 26 | 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Inverting data inputs - bus-hold enabled; no external pull-up required for unused pins |
| 2, 3, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 19, 20, 22, 23 | 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Inverting 3-State outputs - each includes integrated 30Ω series termination for clean signal integrity |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight ground connections - distributed for low-inductance return path and noise reduction |
| 7, 18, 31, 42 | VCC | Four power supply pins - decoupling recommended at each for stable 2.5V/3.3V operation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30Ω Output Termination | Eliminates external series resistors and reduces PCB component count for DDR, address, and clock buses |
| Bus-Hold Inputs | Maintains valid logic levels on floating A-inputs without external biasing - critical for hot-swap and partial-bus scenarios |
| 5V-Tolerant I/O | Accepts 0–5.5 V input signals and drives 5V buses directly - simplifies interconnection with legacy 5V peripherals |
| Power-Up 3-State | Outputs remain high-impedance during VCC ramp-up - prevents bus contention at power-on |
| Live Insertion/Extraction Support | Enables hot-plug operation in modular backplane systems without damaging adjacent devices |
Applications
| Memory Address Buffering | High-Speed Clock Distribution |
|---|---|
|
Use Scenario: Driving 16-bit address bus between 3.3V microcontroller and 5V SRAM or Flash memory. IC Role / Device Role / Timing Role: Inverting buffer with 3-State control isolating CPU from memory during DMA cycles. Use Value: Integrated 30Ω termination suppresses reflections on 10+ cm traces; 5V I/O tolerance avoids level-shifter ICs. |
Use Scenario: Distributing a 100 MHz system clock to multiple 5V logic devices across a dense PCB. IC Role / Device Role / Timing Role: Low-skew inverting driver with matched output impedance for controlled-impedance trace routing. Use Value: 2.2 ns typical propagation delay ensures sub-nanosecond skew across 16 outputs; bus-hold prevents glitches during clock enable transitions. |
| Backplane Data Bus Interface | Hot-Swappable Module Control |
|
Use Scenario: Interfacing a 2.5V FPGA to a 5V backplane data bus with strict signal integrity requirements. IC Role / Device Role / Timing Role: Bidirectional-capable inverting buffer enabling voltage translation and bus isolation. Use Value: Four independent OE pins allow dynamic partitioning of 16-bit bus segments; 30Ω termination minimizes crosstalk in parallel bus layouts. |
Use Scenario: Enabling/disabling I/O lines on a field-replaceable module inserted into an active 5V carrier board. IC Role / Device Role / Timing Role: 3-State buffer with live-insertion support and power-up high-Z behavior. Use Value: Prevents bus contention during insertion; bus-hold maintains safe default states on unconnected pins before firmware initialization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH162240DGGR | TI part with identical 30Ω termination, but requires VCC ≥ 2.3V only; no bus-hold on inputs | Lacks bus-hold - external pull-ups needed for unused inputs in hot-swap use cases | Select when bus-hold is unnecessary and TI supply chain preference applies |
| 74LVT162240DGG,118 | NXP variant with same pinout and function but rated only for 3.3V operation (no 2.5V mode); lower drive (±8mA) | Not suitable for 2.5V systems; reduced drive limits trace length in high-capacitance buses | Select only for pure 3.3V designs where cost is prioritized over dual-voltage flexibility |
Compared with SN74ALVTH162240DGGR and 74LVT162240DGG,118, the 74ALVT162240DGG,51 uniquely combines 2.5V/3.3V dual-supply operation, bus-hold inputs, and ±12mA drive - making it the only option among the three qualified for mixed-voltage hot-swap backplanes requiring guaranteed input state retention.
Availability
74ALVT162240DGG,51 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, backplane interfaces, and hot-swappable module control requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for 74ALVT162240DGG,51 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
NXP Semiconductors, headquartered in Eindhoven, Netherlands, develops high-performance logic and interface solutions for automotive, industrial, and communications markets.
The 74ALVT162240DGG,51 belongs to NXP's Advanced Low-Voltage Technology (ALVT) family - engineered specifically for low-voltage, high-speed bus interfacing in mixed-voltage embedded systems with stringent signal integrity demands.
FAQ
What voltage levels does the 74ALVT162240DGG,51 support for VCC and I/O?
The 74ALVT162240DGG,51 operates with VCC at either 2.5V ±0.2V (2.3–2.7V) or 3.3V ±0.3V (3.0–3.6V). Its inputs accept 0–5.5V, and outputs drive 5V buses directly - enabling seamless interfacing between 2.5V/3.3V logic and legacy 5V systems without level shifters. This dual-voltage capability is confirmed in the Recommended Operating Conditions table on page 4 of the Philips specification.
Does the 74ALVT162240DGG,51 require external pull-up resistors on unused inputs?
No. The 74ALVT162240DGG,51 includes bus-hold circuitry on all data inputs (1A0–4A3), providing ±75 µA hold current at 3.0V to retain the last-valid logic state. This eliminates the need for external pull-up or pull-down resistors on floating inputs - a key feature verified in the DC Electrical Characteristics table (page 4) and explicitly stated in the FEATURES section of the datasheet.
How does the integrated 30Ω termination in the 74ALVT162240DGG,51 improve signal integrity?
The 74ALVT162240DGG,51 integrates 30Ω series resistance in both pull-up and pull-down output paths, matching common PCB trace impedances (e.g., 50–75Ω) in source-series termination configurations. This reduces ringing and overshoot on memory address, clock, and data buses - confirmed by the "Outputs include series resistance of 30Ω" feature and schematic SW00007 in the datasheet - eliminating two external resistors per output.
What is the propagation delay of the 74ALVT162240DGG,51 at 3.3V operation?
At VCC = 3.3V ±0.3V and Tamb = 25°C, the 74ALVT162240DGG,51 exhibits a typical propagation delay (tPLH/tPHL) of 2.2 ns with CL = 50 pF, as specified in the QUICK REFERENCE DATA table (page 2) and AC CHARACTERISTICS table (page 5). Maximum delay is 4.3 ns across –40°C to +85°C, supporting reliable operation in high-speed digital systems.
Can the 74ALVT162240DGG,51 be used in hot-swap applications?
Yes. The 74ALVT162240DGG,51 supports live insertion/extraction, as explicitly stated in the FEATURES list. Its power-up 3-State behavior ensures outputs remain high-impedance during VCC ramp-up, and bus-hold inputs prevent undefined states on unconnected pins - critical for hot-plug modules. These capabilities are validated in the ABSOLUTE MAXIMUM RATINGS and FUNCTION TABLE sections.
74ALVT162240DGG,51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, 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:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVT162240DGG,51 FAQ
1.How can I place an order for 74ALVT162240DGG,51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT162240DGG,51 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 74ALVT162240DGG,51 reliable?
The price and inventory of 74ALVT162240DGG,51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT162240DGG,51 is usually 5 days.
3.What payment methods are accepted for 74ALVT162240DGG,51?
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4.How is shipping managed for 74ALVT162240DGG,51?
74ALVT162240DGG,51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT162240DGG,51 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 74ALVT162240DGG,51?
For technical support, including 74ALVT162240DGG,51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT162240DGG,51 requirements.
6.How does Aetrix verify that 74ALVT162240DGG,51 is sourced from the original manufacturer or authorized distributors?
All 74ALVT162240DGG,51 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 74ALVT162240DGG,51 meets industry standards.
7.What is the process for return or replacement of 74ALVT162240DGG,51?
All 74ALVT162240DGG,51 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT162240DGG,51, 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 74ALVT162240DGG,51 part is unused and in its original packaging.
Return procedure for 74ALVT162240DGG,51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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