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NXP Semiconductors 74ALVT162244DL,112
- Part No.:
- 74ALVT162244DL,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVT162244DL,112.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,435
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Product details
Overview
74ALVT162244DL,112 from Philips Semiconductors is a 2.5V/3.3V 16-bit non-inverting 3-State buffer/driver with integrated 30Ω series output termination resistors, TTL-compatible I/O, ±12mA drive capability, and bus-hold inputs - used in high-speed memory address and clock distribution buses operating at 5V logic levels.
For engineers reviewing the 74ALVT162244DL,112 datasheet, 74ALVT162244DL,112 pinout, 74ALVT162244DL,112 application, or 74ALVT162244DL,112 equivalent, this device supports mixed-voltage system interfacing (2.5V/3.3V core with 5V I/O), eliminates external termination, enables live insertion, and provides latch-up protection exceeding 500mA per JEDEC Std 17.
Technical Context
The 74ALVT162244DL,112 implements four independent 4-bit non-inverting 3-State buffers, each with dedicated output-enable (OE) control. Its BiCMOS architecture delivers low propagation delay (2.2ns typical at 3.3V, CL = 50pF) while maintaining compatibility across 2.5V and 3.3V supply domains.
All outputs integrate matched 30Ω series resistance in both high and low states to suppress transmission-line reflections without external components. Bus-hold circuitry on all data inputs maintains valid logic states on unused pins, eliminating external pull-ups and reducing board-level component count.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3–2.7V or 3.0–3.6V - dual-rail operation enables use in 2.5V and 3.3V systems with 5V-tolerant I/O. |
| Output Drive | ±12mA - sufficient for driving terminated 50Ω transmission lines and fan-out to multiple CMOS/TTL loads. |
| Propagation Delay | 2.2ns (typ, 3.3V, CL = 50pF) - supports >400MHz data rates in point-to-point or stubbed bus topologies. |
| Input Clamping | VIK = –0.85V (min) - protects against negative transients during hot-swap or signal undershoot events. |
| Bus-Hold Current | ±75µA to ±130µA (3.3V) - actively holds floating inputs at valid logic levels without external biasing. |
| Termination Resistance | 30Ω series per output - matches common PCB trace impedances, reducing overshoot/ringing without discrete resistors. |
| ESD Protection | 2000V HBM, 200V MM - exceeds standard handling requirements for automated assembly and field service. |
Pinout & Package
74ALVT162244DL,112 is housed in a 48-pin plastic SSOP (Shrink Small Outline Package), body width 7.5 mm, per drawing SOT370-1. Pin pitch is 0.5 mm; package is RoHS-compliant and lead-free compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 48, 25, 24 | 1OE, 2OE, 3OE, 4OE | Active-low output enable controls for four 4-bit sections - allows independent gating of bus segments. |
| 47–43, 41–37, 36–32, 30–26 | 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Data inputs with bus-hold - retain last valid state when un-driven; eliminate need for pull-up/down resistors. |
| 2–6, 8–12, 13–17, 19–23 | 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-inverting 3-State outputs with integrated 30Ω series termination - reduce signal integrity issues on backplanes and memory buses. |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight ground connections - minimize ground bounce and improve noise immunity in high-speed switching. |
| 7, 18, 31, 42 | VCC | Four VCC pins - lower power delivery impedance and stabilize supply under dynamic load conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30Ω output termination | Eliminates up to 32 external series resistors on 16-bit bus, reducing BOM cost and PCB area. |
| Bus-hold inputs | Maintains defined logic state on unterminated or floating inputs - prevents metastability and system lockup. |
| 5V-tolerant I/O | Accepts 0–5.5V input signals and drives 5V buses directly from 2.5V/3.3V supplies - simplifies level-shifting design. |
| Live insertion/extraction support | Power-up 3-State and robust ESD/latch-up protection allow safe hot-plug operation in modular backplane systems. |
| Low quiescent current | ICCZ = 40µA (2.5V) / 70µA (3.3V) in 3-State - minimizes standby power in always-on subsystems. |
Applications
| Memory Address Buffering | High-Speed Clock Distribution |
|---|---|
|
Use Scenario: Driving address lines from a 3.3V microcontroller to multiple 5V SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting 3-State buffer with 30Ω termination ensures clean edge integrity and reduces reflections on parallel address traces. Use Value: Enables direct interface without level shifters or external termination, cutting bill-of-materials and layout complexity. |
Use Scenario: Distributing a 100MHz system clock from a PLL to four synchronous peripherals with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew, low-delay buffer section isolates source and provides controlled-impedance drive to each load. Use Value: Integrated 30Ω series resistance damps ringing and improves jitter margin over discrete resistor solutions. |
| Backplane Data Bus Interface | Hot-Swappable Module I/O |
|
Use Scenario: Interfacing a 2.5V FPGA I/O bank to a legacy 5V backplane bus carrying control/status data. IC Role / Device Role / Timing Role: Voltage-tolerant buffer with bus-hold maintains valid logic on unused slots and prevents floating-bus faults. Use Value: Eliminates need for external bus-keeper circuits and supports mixed-supply backplane architectures. |
Use Scenario: Enabling hot insertion of daughter cards into a carrier board with powered-backplane architecture. IC Role / Device Role / Timing Role: Power-up 3-State and live-insertion-rated I/O prevent bus contention and supply glitches during card mating. Use Value: Meets JEDEC Std 17 latch-up immunity (>500mA) and supports field-replaceable module designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH162244DGGR | TI part with identical 16-bit non-inverting 3-State function, 30Ω termination, and 2.3–3.6V operation - but uses TSSOP-48 (SOT362-1) and specifies 3.3V-only AC characteristics. | Same bus-hold and 5V I/O tolerance; slightly higher ICCZ (100µA vs. 70µA at 3.3V) and no 2.5V AC data published. | Select when TSSOP-48 footprint is preferred and only 3.3V operation required; verify timing margins at 2.5V if needed. |
| 74LVT162244MTDX | ON Semiconductor variant with same pinout and function, but lacks bus-hold inputs and specifies only 3.3V operation (no 2.5V range). | Requires external pull-up resistors on unused inputs; not suitable for floating-bus environments without additional components. | Choose for cost-sensitive 3.3V-only designs where bus-hold is unnecessary and external biasing is acceptable. |
Compared with SN74ALVTH162244DGGR and 74LVT162244MTDX, the 74ALVT162244DL,112 uniquely supports full 2.5V/3.3V dual-rail operation with verified bus-hold functionality and comprehensive 2.5V AC characterization - making it the only option qualified for mixed-voltage, floating-input, and hot-swap-critical applications.
Availability
74ALVT162244DL,112 is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, backplane interfaces, and hot-swappable module designs requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for 74ALVT162244DL,112 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
Philips Semiconductors (now NXP Semiconductors) is a global semiconductor innovator founded in the Netherlands, specializing in high-reliability logic, analog, and interface solutions for industrial, automotive, and communications infrastructure.
The 74ALVT162244DL,112 belongs to the ALVT (Advanced Low-Voltage Technology) family - engineered for high-speed, low-power, mixed-voltage bus interfacing in telecom backplanes, server memory controllers, and modular computing systems.
FAQ
What voltage rails does the 74ALVT162244DL,112 support?
The 74ALVT162244DL,112 operates from either 2.3–2.7V (2.5V nominal) or 3.0–3.6V (3.3V nominal) supply rails. Its I/O pins tolerate 0–5.5V input voltages and can drive 5V buses directly, enabling seamless interfacing between 2.5V/3.3V logic cores and legacy 5V subsystems without external level shifters.
Does the 74ALVT162244DL,112 require external termination resistors?
No. The 74ALVT162244DL,112 integrates 30Ω series resistors in both high and low output states, matching typical PCB trace impedances. This eliminates the need for external termination resistors on all 16 outputs - reducing component count, PCB area, and signal integrity tuning effort in memory and clock distribution applications.
How does bus-hold functionality work on the 74ALVT162244DL,112?
The 74ALVT162244DL,112 includes internal bus-hold circuitry on all data inputs (1A0–4A3). When an input floats, the bus-hold network applies ±75µA to ±130µA feedback current to maintain the last valid logic state - preventing undefined operation, noise susceptibility, and system reset events without external pull-up or pull-down resistors.
Is the 74ALVT162244DL,112 suitable for hot-swap applications?
Yes. The 74ALVT162244DL,112 supports live insertion/extraction via power-up 3-State behavior, robust ESD protection (2000V HBM), and latch-up immunity exceeding 500mA per JEDEC Std 17. These features make it appropriate for modular backplanes, pluggable I/O cards, and carrier boards where modules are inserted or removed while powered.
What is the maximum operating frequency supported by the 74ALVT162244DL,112?
The 74ALVT162244DL,112 achieves a typical propagation delay of 2.2ns at 3.3V (CL = 50pF), supporting data rates beyond 400MHz in point-to-point configurations. Its AC characteristics are fully specified from –40°C to +85°C, and the integrated 30Ω termination helps maintain signal fidelity at these speeds without external damping components.
74ALVT162244DL,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74ALVT162244DL,112 FAQ
1.How can I place an order for 74ALVT162244DL,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT162244DL,112 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 74ALVT162244DL,112 reliable?
The price and inventory of 74ALVT162244DL,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT162244DL,112 is usually 5 days.
3.What payment methods are accepted for 74ALVT162244DL,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT162244DL,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVT162244DL,112?
74ALVT162244DL,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT162244DL,112 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 74ALVT162244DL,112?
For technical support, including 74ALVT162244DL,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT162244DL,112 requirements.
6.How does Aetrix verify that 74ALVT162244DL,112 is sourced from the original manufacturer or authorized distributors?
All 74ALVT162244DL,112 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 74ALVT162244DL,112 meets industry standards.
7.What is the process for return or replacement of 74ALVT162244DL,112?
All 74ALVT162244DL,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT162244DL,112, 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 74ALVT162244DL,112 part is unused and in its original packaging.
Return procedure for 74ALVT162244DL,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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