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NXP Semiconductors 74LVT162244BDGG:51
- Part No.:
- 74LVT162244BDGG:51
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVT162244BDGG:51.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,355
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Product details
Overview
74LVT162244BDGG:51 from Nexperia is a 3.3V 16-bit non-inverting 3-State buffer/driver with integrated 30Ω series output termination resistors, TTL-compatible I/O, bus-hold inputs, and ±12mA drive capability. It serves as a high-noise-immunity interface between 3.3V logic and 5V buses in memory address drivers, clock distribution, and backplane transceivers.
For engineers reviewing the 74LVT162244BDGG:51 datasheet, 74LVT162244BDGG:51 pinout, 74LVT162244BDGG:51 application, or 74LVT162244BDGG:51 equivalent, key selection criteria include its 30Ω on-die termination eliminating external resistors, bus-hold functionality reducing external pull-ups, and guaranteed operation across –40°C to +85°C with 2.7V–3.6V supply tolerance.
Technical Context
The 74LVT162244BDGG:51 implements four independent 4-bit non-inverting buffers, each controlled by a dedicated 3-State output enable (OE) input. Its BiCMOS architecture enables fast propagation delay (2.8 ns typical at 3.3V/50pF) while maintaining low ICCZ (70 µA) in disabled state.
All 16 outputs integrate matched 30Ω series resistors in both high and low states-verified per schematic SW00007-to suppress transmission-line reflections without requiring external termination. Bus-hold circuitry on all A-inputs actively maintains last-valid logic state when floating, eliminating need for external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7V to 3.6V - Ensures robust operation across industrial voltage tolerances and brown-out conditions. |
| Output Drive | ±12mA - Supports direct interfacing to 50Ω transmission lines and fan-out to multiple TTL loads. |
| Propagation Delay | 2.8 ns typical (tPLH/tPHL, CL = 50pF) - Enables reliable timing in high-speed address/data bus applications up to ~350 MHz. |
| Input Clamp Voltage | –1.2V (VIK, IIK = –18mA) - Protects inputs against negative transients during live insertion/extraction. |
| Bus-Hold Current | ±75 µA to ±135 µA - Actively retains logic state on unused inputs without external components. |
| Termination Resistance | 30Ω series per output - Matches common PCB trace impedances, eliminating discrete termination resistors and saving board space. |
| ESD Rating | 2000V HBM, 200V MM - Meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
74LVT162244BDGG:51 is housed in a 48-pin plastic TSSOP (Thin Shrink Small Outline Package), SOT362-1, body width 6.1 mm, lead pitch 0.5 mm, compliant with JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 48 24, 25 | 1OE, 2OE, 3OE, 4OE | Active-low 3-State enable inputs - Each controls one 4-bit buffer group; asserted low enables corresponding Y outputs. |
| 47–43, 41–37, 36–32, 30–26 | 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | Data inputs - All feature bus-hold circuitry; no external pull-up required when unused. |
| 2–6, 8–12, 13–17, 19–23 | 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-inverting buffered outputs - Each includes 30Ω series resistor in both logic states for intrinsic line termination. |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Ground reference - Eight dedicated ground pins minimize ground bounce in high-speed switching. |
| 7, 18, 31, 42 | VCC | 3.3V supply - Four VCC pins reduce power delivery impedance and improve noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30Ω output termination | Eliminates need for 16 external series resistors, reducing BOM count and PCB layout complexity in high-speed bus designs. |
| Bus-hold inputs | Maintains valid logic state on floating data inputs, removing requirement for 16 external pull-up resistors in partial-bus configurations. |
| Live insertion/extraction support | Clamp diodes and controlled power-up 3-State behavior allow hot-plug operation in modular backplane systems without damaging connected logic. |
| TTL-level I/O compatibility | Accepts 5V-tolerant inputs and drives 5V buses directly, enabling seamless interfacing between legacy 5V and modern 3.3V subsystems. |
| Latch-up immunity >500mA | Complies with JEDEC Std 17, ensuring robustness against transient current faults in noisy industrial environments. |
Applications
| Memory Address Drivers | Backplane Transceivers |
|---|---|
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 on-die 30Ω termination ensures clean edge integrity and eliminates stub reflections on parallel address traces. Use Value: Reduces signal overshoot/ringing by >60% compared to un-terminated buffers, verified via AC waveform analysis in datasheet Figure SW00008. | Use Scenario: Interfacing modular CPU and I/O cards across a 12-inch 50Ω backplane in industrial PLC chassis. IC Role / Device Role / Timing Role: 16-bit bidirectional bus driver with independent OE control per 4-bit segment enables selective card isolation and hot-swap capability. Use Value: Integrated bus-hold prevents floating inputs during card removal, avoiding spurious read/write cycles and system lockup. |
| High-Speed Clock Distribution | PCI/ISA Bus Interface |
Use Scenario: Distributing a 100MHz system clock from a 3.3V PLL to multiple 5V peripheral controllers. IC Role / Device Role / Timing Role: Low-skew, terminated buffer minimizes jitter accumulation and maintains <100ps inter-channel skew across all 16 outputs. Use Value: 2.8 ns typical tPLH/tPHL and matched 30Ω outputs ensure sub-nanosecond edge alignment critical for synchronous clock fanout. | Use Scenario: Adapting 3.3V host controller signals to legacy 5V PCI or ISA expansion slots. IC Role / Device Role / Timing Role: Level-shifting buffer with 5V-tolerant inputs and 3.3V-compatible outputs meets PCI v2.2 DC specifications for driving 5V buses. Use Value: Eliminates need for discrete level translators and external termination networks, simplifying compliance with PCI electrical requirements. |
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 |
|---|---|---|---|
| 74LVT16244BDGG | Identical electrical specs and pinout; same die as 74LVT162244B per datasheet note "same part as 74LVT16244B-1". | No functional difference; used interchangeably in all 74LVT162244BDGG:51 applications. | Select based on distributor stock availability; no design change required. |
| SN74LVC16244ADGGR | Lower drive (±24mA), no integrated termination, no bus-hold; requires external 33Ω resistors and pull-ups. | Suitable only where board space allows added passives and system tolerates higher layout sensitivity. | Choose only if LVC family voltage flexibility (1.65V–3.6V) is required; otherwise 74LVT162244BDGG:51 offers superior integration. |
Compared with 74LVT16244BDGG, the 74LVT162244BDGG:51 offers identical performance but reflects updated industry-standard part numbering; versus SN74LVC16244ADGGR, it delivers plug-and-play termination and bus-hold-reducing component count by ≥16 passives and improving signal integrity out-of-box.
Availability
74LVT162244BDGG:51 is available at Aetrix Electronics and suitable for memory subsystems, industrial backplanes, clock distribution networks, and legacy bus interface designs requiring stable component supply and long-term obsolescence management.
Supply support for 74LVT162244BDGG: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
Nexperia is a global leader in high-performance discrete, logic, and PowerMOS semiconductors, spun off from NXP's Standard Products division in 2017 and focused on automotive, industrial, computing, and consumer markets.
The 74LVT162244BDGG:51 belongs to Nexperia's LVT (Low-Voltage TTL) logic family-designed specifically for robust 3.3V-to-5V interfacing in noise-sensitive, high-reliability industrial and telecom infrastructure applications.
FAQ
What is the function of the bus-hold feature on 74LVT162244BDGG:51 inputs?
The bus-hold circuitry on all A-inputs of the 74LVT162244BDGG:51 actively maintains the last-valid logic state when inputs are left floating, drawing ±75 µA to ±135 µA to overdrive the input. This eliminates the need for external pull-up or pull-down resistors in partially populated bus configurations, reducing BOM cost and layout complexity without compromising signal integrity.
Does 74LVT162244BDGG:51 support live insertion and extraction in backplane systems?
Yes, the 74LVT162244BDGG:51 supports live insertion/extraction due to its input clamp diodes (VIK = –1.2V), power-up 3-State behavior, and latch-up immunity exceeding 500mA per JEDEC Std 17. These features prevent damage during hot-plug events and avoid system glitches when modules are added or removed under power in industrial chassis applications.
How does the 30Ω series termination in 74LVT162244BDGG:51 improve signal integrity?
The 30Ω series resistor integrated into each output of the 74LVT162244BDGG:51 matches typical PCB trace impedances, suppressing reflections at the source end of transmission lines. Verified in datasheet schematic SW00007 and AC waveforms SW00008, this reduces overshoot/ringing by >60% compared to unterminated buffers-enabling clean edges in memory address and clock distribution up to 100MHz.
Can 74LVT162244BDGG:51 interface directly with 5V logic systems?
Yes, the 74LVT162244BDGG:51 accepts 5V-tolerant inputs (VI up to 5.5V) and drives 5V buses directly with ±12mA output current, meeting TTL switching thresholds (VIH = 2.0V, VIL = 0.8V). Its 3.3V VCC operation and 5V I/O compatibility make it ideal for bridging 3.3V controllers to legacy 5V peripherals without level shifters.
What is the thermal and reliability qualification of 74LVT162244BDGG:51?
The 74LVT162244BDGG:51 is qualified for industrial temperature range (–40°C to +85°C), with maximum junction temperature limited to 150°C. It exceeds JEDEC Std 17 latch-up immunity (>500mA) and MIL-STD-883 HBM ESD rating (2000V), ensuring long-term reliability in harsh environments such as factory automation and telecom base stations.
74LVT162244BDGG:51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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-TSSOP
74LVT162244BDGG:51 FAQ
1.How can I place an order for 74LVT162244BDGG:51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT162244BDGG: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 74LVT162244BDGG:51 reliable?
The price and inventory of 74LVT162244BDGG:51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT162244BDGG:51 is usually 5 days.
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Once your 74LVT162244BDGG: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 74LVT162244BDGG:51?
For technical support, including 74LVT162244BDGG:51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT162244BDGG:51 requirements.
6.How does Aetrix verify that 74LVT162244BDGG:51 is sourced from the original manufacturer or authorized distributors?
All 74LVT162244BDGG: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 74LVT162244BDGG:51 meets industry standards.
7.What is the process for return or replacement of 74LVT162244BDGG:51?
All 74LVT162244BDGG:51 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT162244BDGG: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 74LVT162244BDGG:51 part is unused and in its original packaging.
Return procedure for 74LVT162244BDGG:51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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