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NXP Semiconductors 74ALVT162240DL,112
- Part No.:
- 74ALVT162240DL,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVT162240DL,112.pdf
- Description:
- IC BUFFER INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
74ALVT162240DL,112 from Philips Semiconductors 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 Output Enable inputs (1OE–4OE), bus-hold inputs eliminating external pull-ups, and ±12mA drive capability. It is used in high-speed memory address and clock bus driving where signal integrity and reduced external component count are critical.
For engineers reviewing the 74ALVT162240DL,112 datasheet, 74ALVT162240DL,112 pinout, 74ALVT162240DL,112 application, or 74ALVT162240DL,112 equivalent, this page delivers verified electrical parameters, package mapping to SSOP-48, functional pin roles, bus-hold behavior, propagation delay (2.2 ns typical at 3.3V), and real-world substitution guidance - all extracted from the official Philips 1998 Product Specification.
Technical Context
The 74ALVT162240DL,112 implements a BiCMOS architecture enabling dual-supply compatibility: VCC operates at either 2.5V ±0.2V or 3.3V ±0.3V while maintaining TTL-compatible input thresholds (VIL = 0.7–0.8V, VIH = 1.7–2.0V) and 5V-tolerant I/O. Its 30Ω on-die series resistance in both pull-up and pull-down paths suppresses transmission-line ringing without requiring external termination resistors.
Each of its four OE controls enables/disables a group of four inverting outputs independently, supporting segmented bus control. Bus-hold circuitry provides 75–130 µA hold current at 3.3V, stabilizing floating data inputs without external components. Power-up 3-State ensures outputs remain high-impedance during power ramp-up, preventing bus contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3–2.7V or 3.0–3.6V - supports dual-voltage system interfacing without level shifters |
| Propagation Delay (tPLH/tPHL) | 2.2 ns typical at 3.3V, CL = 50pF - enables >400 MHz bus operation in short traces |
| Output Drive | ±12 mA at 3.3V - sufficient to drive 50Ω transmission lines or multiple CMOS loads |
| Integrated Termination | 30Ω series resistance per output - eliminates need for 30Ω external resistors on PCB |
| Bus-Hold Current | 75–130 µA at VCC = 3.0V - actively holds unused inputs at last valid logic state |
| ESD Protection | >2000V HBM, >200V MM - exceeds MIL-STD-883 requirements for board-level robustness |
| Quiescent Supply Current (ICCZ) | 100 µA max with outputs disabled - minimizes standby power in powered-down bus segments |
Pinout & Package
74ALVT162240DL,112 is housed in a 48-pin Plastic SSOP (Shrink Small Outline Package), type III, body width 7.5 mm (SOT370-1), rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 48, 25, 24 | 1OE, 2OE, 3OE, 4OE | Active-low output enable controls for groups of 4 outputs each - enables partial bus gating |
| 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 with bus-hold - prevents floating states without external pull-ups |
| 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 outputs with integrated 30Ω series resistance - reduces signal reflections on stubbed buses |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight ground connections - lowers ground bounce and improves noise immunity |
| 7, 18, 31, 42 | VCC | Four dedicated power pins - reduces supply impedance and stabilizes switching transients |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit inverting 3-State buffering | Four independent OE inputs allow selective activation of 4-output segments - ideal for multi-drop address/data buses |
| Integrated 30Ω output series resistance | Eliminates need for 32 external 30Ω resistors - saves PCB area, BOM cost, and layout complexity |
| 5V-tolerant I/O with 2.5V/3.3V VCC | Interfaces directly between legacy 5V logic and modern low-voltage ASICs/FPGAs - no level translators required |
| Bus-hold inputs | Maintains stable logic levels on unconnected or unterminated inputs - prevents metastability and EMI |
| Power-up 3-State | Outputs remain high-impedance until VCC reaches operational threshold - avoids bus conflicts during power sequencing |
Applications
| Memory Address Bus Driver | High-Speed Clock Distribution |
|---|---|
|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or Flash memory in embedded systems. IC Role / Device Role / Timing Role: Inverting buffer with 30Ω series termination ensures clean edge transitions and minimal overshoot on parallel address traces. Use Value: Eliminates external termination resistors and prevents address bus glitches caused by unterminated stubs or capacitive loading. |
Use Scenario: Distributing a system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew inverting driver with controlled output impedance maintains signal integrity across fan-out branches. Use Value: Reduces jitter accumulation and reflection-induced duty-cycle distortion in clock trees operating up to 400 MHz. |
| Backplane Data Transceiver Interface | Industrial Control Bus Isolation Segment |
|
Use Scenario: Bidirectional data buffering between processor and backplane slots in modular PLC or test equipment chassis. IC Role / Device Role / Timing Role: 3-State outputs with bus-hold support hot-swap insertion/extraction without bus contention or floating inputs. Use Value: Enables live module replacement while maintaining stable bus voltage levels and avoiding system reset events. |
Use Scenario: Isolating noisy I/O sections (e.g., relay drivers, motor controllers) from sensitive analog or communication subsystems. IC Role / Device Role / Timing Role: Inverting buffer with 5V I/O tolerance interfaces 3.3V controller logic to industrial 5V fieldbus standards (e.g., RS-485 transceivers). Use Value: Provides voltage domain bridging and noise margin enhancement without discrete level-shifting components. |
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 16-bit inverting 3-State function, 30Ω termination, and 2.3–3.6V VCC, but uses TSSOP-48 (SOT362-1) instead of SSOP-48. | Same bus-hold and 5V-tolerant I/O, but slightly higher tPLH (2.9 ns typical) and lower IOH (–8 mA) at 2.5V. | Preferred when TSSOP footprint is already standardized; requires PCB layout revision due to different package dimensions. |
| 74LVT162240MTDX | ON Semiconductor variant with same pinout and logic function, but lacks integrated 30Ω termination - requires external 30Ω resistors per output. | Compatible timing and drive strength, but adds 32 passive components and increases layout complexity and signal path inductance. | Select only if strict cost optimization permits added BOM and layout overhead; not drop-in compatible for termination-critical designs. |
Compared with SN74ALVTH162240DGGR and 74LVT162240MTDX, the 74ALVT162240DL,112 offers superior signal integrity via monolithic 30Ω termination and optimal propagation delay (2.2 ns), making it the preferred choice for high-speed, space-constrained bus interface applications where PCB real estate and reflection control are critical.
Availability
74ALVT162240DL,112 is available at Aetrix Electronics and suitable for memory address bus drivers, high-speed clock distribution networks, backplane data transceivers, and industrial control bus isolation segments requiring stable component supply and long-term obsolescence management.
Supply support for 74ALVT162240DL,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 logic, analog, RF, and automotive ICs with emphasis on reliability and system-level integration.
The 74ALVT162240DL,112 belongs to Philips' Advanced Low-Voltage Technology (ALVT) logic family, engineered for mixed-voltage system interfacing in telecom infrastructure, industrial automation, and embedded computing platforms.
FAQ
What is the supply voltage range supported by the 74ALVT162240DL,112?
The 74ALVT162240DL,112 operates over two defined VCC ranges: 2.3–2.7V for 2.5V systems and 3.0–3.6V for 3.3V systems. It maintains full functionality-including 5V I/O tolerance, bus-hold, and 30Ω termination-across both ranges. Operation outside these limits violates recommended conditions and may impair timing or reliability.
Does the 74ALVT162240DL,112 require external termination resistors?
No. The 74ALVT162240DL,112 integrates 30Ω series resistance in both pull-up and pull-down output paths, explicitly eliminating the need for external termination resistors. This design reduces PCB component count, layout complexity, and signal path inductance-confirmed in Philips' 1998 Product Specification section "DESCRIPTION" and "FEATURES".
How does the bus-hold feature work on the 74ALVT162240DL,112?
The 74ALVT162240DL,112 includes internal bus-hold circuitry on all data inputs (1A0–4A3), providing 75–130 µA of active hold current at 3.3V. When an input floats, this circuit latches the last valid logic state, preventing undefined transitions and EMI. No external pull-up/down resistors are needed-verified in the "FEATURES" and "DC ELECTRICAL CHARACTERISTICS" tables.
What is the maximum propagation delay of the 74ALVT162240DL,112 at 3.3V?
At VCC = 3.3V ±0.3V and Tamb = –40°C to +85°C, the maximum propagation delay (tPLH/tPHL) of the 74ALVT162240DL,112 is 4.3 ns, measured with CL = 50 pF. The typical value is 2.2 ns, enabling reliable operation in sub-5 ns timing budgets for high-speed bus interfaces.
Is the 74ALVT162240DL,112 pin-compatible with standard 74-series 16-bit buffers?
The 74ALVT162240DL,112 uses a proprietary 48-pin SSOP pinout (SOT370-1) optimized for its four OE inputs and dual VCC/GND distribution. It is not pin-compatible with generic 74AC/74HC162240 packages (e.g., TSSOP-48 or SO-48 variants). Pin mapping must be verified against the "PIN DESCRIPTION" and "PIN CONFIGURATION" diagrams in the Philips datasheet.
74ALVT162240DL,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, 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
74ALVT162240DL,112 FAQ
1.How can I place an order for 74ALVT162240DL,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT162240DL,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 74ALVT162240DL,112 reliable?
The price and inventory of 74ALVT162240DL,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT162240DL,112 is usually 5 days.
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Once your 74ALVT162240DL,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 74ALVT162240DL,112?
For technical support, including 74ALVT162240DL,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT162240DL,112 requirements.
6.How does Aetrix verify that 74ALVT162240DL,112 is sourced from the original manufacturer or authorized distributors?
All 74ALVT162240DL,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 74ALVT162240DL,112 meets industry standards.
7.What is the process for return or replacement of 74ALVT162240DL,112?
All 74ALVT162240DL,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT162240DL,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 74ALVT162240DL,112 part is unused and in its original packaging.
Return procedure for 74ALVT162240DL,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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