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Nexperia USA Inc. 74LVT162244BDL,118
- Part No.:
- 74LVT162244BDL,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74LVT162244BDL,118.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:988
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Product details
Overview
74LVT162244BDL,118 from Nexperia is a 3.3 V 16-bit 3-state buffer/driver with integrated 30 Ω series output termination resistors, designed for high-speed bus interface applications in industrial and telecom backplanes. It features four independent output-enable inputs (1OE–4OE), ±12 mA drive strength, 2.7 V to 3.6 V supply range, and overvoltage-tolerant inputs up to 5.5 V.
For engineers reviewing the 74LVT162244BDL,118 datasheet, 74LVT162244BDL,118 pinout, 74LVT162244BDL,118 application, or 74LVT162244BDL,118 equivalent, this device supports TTL-level interfacing, live insertion/extraction, bus-hold input retention, and IOFF partial power-down-critical for hot-swap-capable 3.3 V system buses requiring impedance-matched signal integrity.
Technical Context
This BiCMOS buffer implements four independent 4-bit 3-state output groups, each controlled by a dedicated active-low enable (1OE–4OE). Each output includes a built-in 30 Ω series resistor to match transmission line impedance and eliminate external termination components.
It supports mixed-voltage operation: inputs tolerate 5.5 V while powered from 3.3 V, enabling safe interfacing with legacy 5 V logic. Bus-hold circuitry maintains defined logic states on unused inputs without external pull-ups, and IOFF protection prevents current flow when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.7 V to 3.6 V - ensures compatibility with 3.3 V ±10 % rail systems and robustness against supply droop. |
| Output drive | ±12 mA - sufficient to drive 50 Ω transmission lines and meet TTL fan-out requirements. |
| Propagation delay | 2.5 ns to 4.2 ns (VCC = 3.3 V) - enables >200 MHz bus operation with tight timing margins. |
| Input voltage tolerance | Up to 5.5 V - allows direct connection to 5 V logic without level shifters. |
| Bus-hold current | ±75 μA to ±135 μA - actively retains input state during floating conditions, eliminating external biasing. |
| IOFF leakage | ±100 μA at VCC = 0 V - prevents back-driving of powered buses during hot-plug events. |
| Operating temperature | −40 °C to +85 °C - qualified for industrial ambient environments without derating. |
Pinout & Package
TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48-pin, 6.1 mm body width, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE (pins 1, 48, 25, 24) | Active-low output enable | Each controls 4 outputs independently; HIGH forces associated Yn outputs into high-impedance state. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 (pins 47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26) | Data inputs | 16 total inputs grouped into four 4-bit channels; bus-hold enabled on all. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 (pins 2,3,5,6,8,9,11,12,13,14,16,17,19,20,22,23) | 3-state buffered outputs | Each includes 30 Ω series resistor; drives 50 Ω loads directly without external termination. |
| VCC (pins 7,18,31,42) | Power supply | Four distributed supply pins reduce IR drop and improve noise immunity across wide bus. |
| GND (pins 4,10,15,21,28,34,39,45) | Ground reference | Eight ground pins provide low-inductance return paths for all 16 outputs and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30 Ω output series resistance | Eliminates need for 16 discrete 30 Ω SMT resistors, reducing BOM count and PCB area. |
| Bus-hold on all inputs | Maintains valid logic levels on unconnected or unterminated inputs, preventing metastability. |
| IOFF partial power-down | Blocks current flow between I/O pins when VCC = 0 V, enabling safe hot insertion into live backplanes. |
| Overvoltage-tolerant inputs (5.5 V) | Permits direct interfacing with 5 V logic families without external level translators or clamping diodes. |
| Power-up 3-state | Outputs remain in high-impedance state until VCC stabilizes, preventing bus contention during power ramp. |
Applications
| Telecom Backplane Interface | Industrial PLC I/O Module |
|---|---|
Use Scenario: Driving parallel control/data buses between line cards in modular telecom chassis with 50 Ω trace impedance. IC Role / Device Role / Timing Role: 16-bit unidirectional bus driver with matched output impedance and fast propagation (≤4.2 ns) to maintain signal integrity across 15 cm traces. Use Value: Integrated 30 Ω termination eliminates 16 external resistors per device, reducing layout complexity and improving timing predictability. |
Use Scenario: Interfacing microcontroller GPIOs to isolated digital I/O banks in programmable logic controllers operating at 3.3 V. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer with 5.5 V tolerant inputs accepting signals from 24 V sensor interfaces via optocouplers. Use Value: Bus-hold functionality retains last valid state on unused inputs, avoiding spurious transitions during configuration changes. |
| Hot-Swappable Server Management Card | Test Equipment Digital Pattern Generator |
Use Scenario: Enabling live insertion of management modules into powered server midplanes with shared 3.3 V control buses. IC Role / Device Role / Timing Role: 3-state buffer with IOFF and power-up 3-state behavior to prevent bus contention and back-powering during hot-plug cycles. Use Value: IOFF leakage < ±100 μA at VCC = 0 V ensures no current flows into module's unpowered VCC rail from live backplane. |
Use Scenario: Driving multiple DUT inputs simultaneously from FPGA-based pattern generators in automated test systems. IC Role / Device Role / Timing Role: High-drive (±12 mA), low-skew buffer delivering synchronized 16-bit vectors with sub-5 ns propagation delay. Use Value: Tight delay matching (<0.7 ns max skew between outputs) ensures setup/hold compliance across multi-pin DUT interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | No integrated termination resistors; requires external 30 Ω series resistors per output. | Lacks bus-hold and IOFF; not suitable for hot-swap or floating-input scenarios. | Select if cost sensitivity outweighs board space and reliability benefits of integrated termination and bus-hold. |
| 74ALVT162244DGG | Higher speed (tPD ≤ 2.2 ns @ 3.3 V); same pinout and termination but higher ICC (0.25 mA vs 0.12 mA). | Better suited for >250 MHz timing-critical buses; increased power draw limits use in thermally constrained modules. | Select when propagation delay < 2.5 ns is mandatory and thermal headroom permits higher quiescent current. |
Compared with SN74LVC16244ADGGR, the 74LVT162244BDL,118 reduces component count and improves robustness via integrated termination and bus-hold; versus 74ALVT162244DGG, it trades 0.3 ns speed for lower static power and broader industrial temperature margin.
Availability
74LVT162244BDL,118 is available at Aetrix Electronics and suitable for telecom backplane interconnects, industrial PLC I/O expansion, and hot-swappable server management modules requiring stable component supply, long-term lifecycle support, and guaranteed TSSOP48 sourcing.
Supply support for 74LVT162244BDL,118 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 essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for industrial, automotive, and computing markets.
The 74LVT family delivers BiCMOS-enhanced 3.3 V logic with TTL compatibility, optimized for high-speed, low-power, and robust bus interface applications in mission-critical industrial systems.
FAQ
Does 74LVT162244BDL,118 support hot insertion into a live 3.3 V bus?
Yes. Its IOFF circuitry ensures output leakage remains below ±100 μA when VCC = 0 V, preventing back-powering or contention during hot insertion. Combined with power-up 3-state behavior and overvoltage-tolerant inputs, it meets industry requirements for live backplane connectivity in telecom and server systems.
Can the 30 Ω series resistors be bypassed for non-terminated loads?
No. The 30 Ω resistors are monolithically integrated into each output path and cannot be disabled or shorted. For non-terminated or low-capacitance loads, verify signal rise/fall times and overshoot using the specified 50 pF load condition from the datasheet; the resistor provides inherent damping that may benefit edge integrity.
What is the maximum clock/data rate supported by this buffer?
Based on tPLH/tPHL ≤ 4.2 ns (typical 2.8 ns) and tPZH/tPZL ≤ 5.5 ns, the device supports data rates up to 200 Mbps with adequate setup/hold margin on 50 Ω lines. For reliable 250+ Mbps operation, use the faster 74ALVT162244DGG variant with 2.2 ns typical propagation delay.
How does bus-hold functionality interact with externally pulled inputs?
Bus-hold current (±75 μA to ±135 μA) dominates weak external pull resistors (>10 kΩ). If stronger external pulls (<4.7 kΩ) are used, they override bus-hold action. For predictable behavior, either rely solely on bus-hold for unused inputs or disable it externally via PCB design-no register control is available.
74LVT162244BDL,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74LVT162244BDL,118 FAQ
1.How can I place an order for 74LVT162244BDL,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT162244BDL,118 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 74LVT162244BDL,118 reliable?
The price and inventory of 74LVT162244BDL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT162244BDL,118 is usually 5 days.
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Once your 74LVT162244BDL,118 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 74LVT162244BDL,118?
For technical support, including 74LVT162244BDL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT162244BDL,118 requirements.
6.How does Aetrix verify that 74LVT162244BDL,118 is sourced from the original manufacturer or authorized distributors?
All 74LVT162244BDL,118 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 74LVT162244BDL,118 meets industry standards.
7.What is the process for return or replacement of 74LVT162244BDL,118?
All 74LVT162244BDL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT162244BDL,118, 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 74LVT162244BDL,118 part is unused and in its original packaging.
Return procedure for 74LVT162244BDL,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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