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Nexperia USA Inc. 74LVTH16244BDGG,11
- Part No.:
- 74LVTH16244BDGG,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVTH16244BDGG,11.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,220
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Product details
Overview
74LVTH16244BDGG,11 from Nexperia is a 3.3 V, 16-bit non-inverting 3-state buffer/driver with four independent output-enable inputs (1OE–4OE), bus-hold inputs, and ±32 mA/±64 mA drive capability. It operates from 2.7 V to 3.6 V, tolerates 5.5 V inputs, and supports -40 °C to +85 °C ambient range. Used in high-speed backplane and memory interface applications requiring level translation and bus isolation.
For engineers reviewing the 74LVTH16244BDGG,11 datasheet, 74LVTH16244BDGG,11 pinout, 74LVTH16244BDGG,11 application, or 74LVTH16244BDGG,11 equivalent, key selection criteria include 3-state timing (tPZH ≤ 4.0 ns), overvoltage-tolerant inputs, bus-hold functionality eliminating external pull-ups, and TSSOP48 thermal/power behavior under 64 mA sink loads.
Technical Context
This BiCMOS device implements four independent 4-bit buffer sections, each controlled by a dedicated active-low output-enable input. Each section features bus-hold circuitry on all 16 data inputs, maintaining valid logic states without external biasing.
It delivers TTL-compatible outputs at 3.3 V supply, supports live insertion/extraction, and includes IOFF circuitry enabling partial power-down mode when VCC = 0 V. Propagation delays are specified down to 0.5 ns (typ) for A→Y paths and 1.0 ns (typ) for OE→Y transitions at 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures compatibility with 3.3 V logic systems while allowing margin for rail variation. |
| Input Voltage Range | 0 V to 5.5 V - Enables direct interfacing with 5 V TTL buses without level shifters. |
| Output Drive | +64 mA sink / -32 mA source - Supports heavy capacitive loads and fan-out to multiple CMOS/TTL inputs. |
| Propagation Delay | tPLH/tPHL ≤ 3.2 ns @ 3.3 V - Meets timing requirements for >200 MHz bus operation with setup/hold margin. |
| Bus Hold Current | IBHL = 75–135 μA, IBHH = -135–-75 μA - Actively retains last-valid state on floating inputs, removing need for external pull resistors. |
| 3-State Enable Time | tPZH ≤ 4.0 ns @ 3.3 V - Enables fast bus arbitration and multiplexing in shared-data-path systems. |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - Provides robust handling during board assembly and system integration. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead finish matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24, 25, 48 | 1OE, 4OE, 3OE, 2OE | Active-low enable inputs controlling Y0–Y3 outputs of Groups 1–4 respectively; HIGH forces high-impedance output state. |
| 2–3, 5–6, 8–9, 11–12, 13–14, 16–17, 19–20, 22–23 | 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 | Non-inverting buffered outputs; each group of four driven by corresponding OE signal. |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight ground connections distributed across package to minimize ground bounce and improve noise immunity. |
| 7, 18, 31, 42 | VCC | Four supply pins placed to reduce IR drop and enhance decoupling effectiveness near output drivers. |
| 47–46–44–43, 41–40–38–37, 36–35–33–32, 30–29–27–26 | 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 | 16 bus-hold data inputs - retain last logic state when un-driven, eliminating external pull-up/pull-down components. |
Key Features
| Feature | Design Value |
|---|---|
| Four independent 4-bit buffers | Enables flexible partitioning: one 16-bit, two 8-bit, or four 4-bit interfaces within single IC. |
| Overvoltage-tolerant inputs | Accepts 0–5.5 V signals at 3.3 V VCC - eliminates level translators when interfacing legacy 5 V subsystems. |
| Power-up 3-state | Outputs remain in high-impedance until VCC stabilizes - prevents bus contention during power sequencing. |
| IOFF partial power-down | Blocks current flow between I/O pins when VCC = 0 V - safe for hot-swap and mixed-voltage backplane use. |
| Latch-up immunity | Exceeds 500 mA per JESD78 Class II Level B - ensures robustness in noisy industrial environments. |
Applications
| Memory Interface Buffering | Backplane Data Multiplexing |
|---|---|
Use Scenario: Driving address/data lines between FPGA and parallel NOR flash or SRAM in embedded controllers. IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing level-shifted, high-drive buffering with precise OE-controlled timing alignment. Use Value: Eliminates need for discrete pull-ups on unused address bits via bus-hold; 3.2 ns max propagation delay enables 200+ MHz bus clocking. |
Use Scenario: Isolating and routing shared data lanes across multiple plug-in modules in modular test equipment. IC Role / Device Role / Timing Role: 16-bit bidirectional bus switch controlled by four independent OE lines for per-module lane enable. Use Value: Live insertion support and IOFF protection prevent bus glitches during hot-swap; 4.0 ns tPZH ensures clean arbitration window. |
| Industrial PLC I/O Expansion | TTL-to-3.3 V Logic Translation |
Use Scenario: Interfacing 5 V sensor outputs and actuator drivers to 3.3 V microcontroller peripherals in factory automation. IC Role / Device Role / Timing Role: Input-tolerant buffer translating 5 V logic levels to 3.3 V domain while driving 3.3 V inputs with ±64 mA capability. Use Value: Overvoltage input rating removes external clamping diodes; bus-hold maintains stable state during sensor disconnect events. |
Use Scenario: Bridging legacy 5 V TTL control signals (e.g., reset, chip select) to modern low-voltage ASICs or FPGAs. IC Role / Device Role / Timing Role: Unidirectional level translator with guaranteed VIH/VIL thresholds compatible with both 5 V TTL and 3.3 V CMOS. Use Value: Direct interface without external resistors or voltage dividers; 0.8 V VIL and 2.0 V VIH ensure noise-immune switching margins. |
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 | Lower drive (±24 mA), 1.65–3.6 V supply, no bus-hold, no 5.5 V input tolerance | Suitable only for pure 3.3 V systems with light loading and externally biased inputs | Select if cost-sensitive and full 5 V tolerance/bus-hold not required. |
| 74ALVCH16244TTR | Higher speed (tPD ≤ 2.8 ns), same 3.3 V range, bus-hold, but no 5.5 V input tolerance | Better for ultra-fast timing-critical paths where 5 V interfacing is absent | Select when sub-3 ns propagation is mandatory and 5 V inputs are unused. |
Compared with SN74LVC16244ADGGR and 74ALVCH16244TTR, the 74LVTH16244BDGG,11 uniquely combines 5.5 V input tolerance, bus-hold, and ±64 mA sink drive - making it the only option for ruggedized 5 V↔3.3 V bridging with zero external bias components.
Availability
74LVTH16244BDGG,11 is available at Aetrix Electronics and suitable for memory interface buffering, backplane data multiplexing, and industrial PLC I/O expansion requiring stable component supply across extended temperature and mixed-voltage conditions.
Supply support for 74LVTH16244BDGG,11 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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial and consumer applications.
The 74LVTH series targets high-speed, mixed-voltage digital interfacing - specifically engineered for robust 3.3 V bus buffering with 5 V tolerance, bus-hold, and hot-swap safety in demanding embedded systems.
FAQ
Does 74LVTH16244BDGG,11 support hot-swap insertion?
Yes. The device supports live insertion and extraction due to its IOFF circuitry, which disables current flow between I/O pins when VCC = 0 V, and its power-up 3-state behavior that holds outputs in high-impedance until supply stabilizes. This prevents bus contention and back-driving during hot-plug events in modular systems.
What is the maximum capacitive load this buffer can drive reliably?
Based on dynamic characterization and output drive specs, the 74LVTH16244BDGG,11 reliably drives up to 50 pF load capacitance with ≤4.0 ns propagation delay and ≤4.5 ns 3-state transition times at 3.3 V. For heavier loads (>70 pF), derating of timing margins or addition of series termination is recommended per application-level signal integrity analysis.
How does bus-hold functionality eliminate external pull-up resistors?
Each input has integrated bus-hold circuitry that sources or sinks 75–135 μA to maintain the last-valid logic state when un-driven. This actively holds the node at VIH or VIL without external components - verified across -40 °C to +85 °C and 2.7–3.6 V VCC, removing design overhead and PCB space for 16 discrete pull resistors.
Can this part be used in automotive applications?
No. The 74LVTH16244BDGG,11 is not automotive-qualified. It is specified for industrial temperature range (-40 °C to +85 °C) and lacks AEC-Q100 qualification, extended lifetime testing, or automotive-specific failure mode analysis. Use only in commercial or industrial systems where automotive-grade reliability is not mandated.
74LVTH16244BDGG,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74LVTH16244BDGG,11 FAQ
1.How can I place an order for 74LVTH16244BDGG,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH16244BDGG,11 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 74LVTH16244BDGG,11 reliable?
The price and inventory of 74LVTH16244BDGG,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH16244BDGG,11 is usually 5 days.
3.What payment methods are accepted for 74LVTH16244BDGG,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH16244BDGG,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH16244BDGG,11?
74LVTH16244BDGG,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH16244BDGG,11 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 74LVTH16244BDGG,11?
For technical support, including 74LVTH16244BDGG,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH16244BDGG,11 requirements.
6.How does Aetrix verify that 74LVTH16244BDGG,11 is sourced from the original manufacturer or authorized distributors?
All 74LVTH16244BDGG,11 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 74LVTH16244BDGG,11 meets industry standards.
7.What is the process for return or replacement of 74LVTH16244BDGG,11?
All 74LVTH16244BDGG,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH16244BDGG,11, 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 74LVTH16244BDGG,11 part is unused and in its original packaging.
Return procedure for 74LVTH16244BDGG,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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