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NXP Semiconductors 74ALVC16245DL,112
- Part No.:
- 74ALVC16245DL,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVC16245DL,112.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,081
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Product details
Overview
74ALVC16245DL,112 from Nexperia is a 16-bit dual 8-bit bus transceiver with independent direction and output-enable controls, 3-state outputs, Schmitt-trigger inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V, supports 5.5 V-tolerant inputs (74ALVC variant), and delivers ±24 mA drive at 3.0 V. It is used in bidirectional data bus interfacing between microcontrollers and peripheral memory or I/O subsystems.
For engineers reviewing the 74ALVC16245DL,112 datasheet, 74ALVC16245DL,112 pinout, 74ALVC16245DL,112 application, or 74ALVC16245DL,112 equivalent, key selection criteria include voltage range compatibility (1.2–3.6 V), 3-state timing (tpd ≤ 3.0 ns at 3.3 V), IOFF-enabled hot-swap capability, and TSSOP48 package footprint for high-density PCB layouts.
Technical Context
This device implements two independent 8-bit transceiver blocks-each with dedicated DIR and OE pins-enabling flexible bidirectional data flow control across separate bus segments. Its Schmitt-trigger inputs tolerate slow-rising signals, and the IOFF circuit actively disables outputs during power-down to prevent backflow current.
The 74ALVC16245DL,112 uses CMOS technology with low-noise multiple VCC/GND pins and supports direct TTL-level interfacing. Unlike the ALVCH variant, it lacks bus-hold but provides overvoltage-tolerant inputs up to 5.5 V, making it suitable for mixed-voltage domain bridging where legacy 5 V logic drives 3.3 V or lower systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - enables single-supply operation across 1.8 V, 2.5 V, and 3.3 V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - allows safe connection to 5 V buses without level shifters |
| Output Drive | ±24 mA at 3.0 V - sufficient to drive 50 Ω transmission lines at 85 °C |
| Propagation Delay | 1.9 ns typical at VCC = 3.3 V - supports high-speed bus transfer up to ~500 Mbps |
| IOFF Protection | Active during power-down - prevents damaging back-current when VCC = 0 V |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade embedded and computing applications |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - robust handling in automated assembly and field environments |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (active HIGH) | Determines data flow direction per 8-bit bank: HIGH = A→B, LOW = B→A |
| 1OE, 2OE | Output enable input (active LOW) | Disables corresponding 8-bit output bank into high-impedance state when HIGH |
| 1A0–1A7, 2A0–2A7 | Data port A (side A) | Bi-directional I/O pins for first/second 8-bit bus segment |
| 1B0–1B7, 2B0–2B7 | Data port B (side B) | Bi-directional I/O pins mirroring port A; connected to opposite bus domain |
| VCC (pins 7, 18, 31, 42) | Power supply | Multiple distributed VCC pins minimize supply inductance and reduce ground bounce |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins ensure low-impedance return paths and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.2–3.6 V) | Supports interoperability across 1.8 V FPGA I/O, 2.5 V ASIC cores, and 3.3 V peripherals without external regulators |
| IOFF partial power-down | Enables live insertion/removal in backplane or modular systems by blocking reverse current when unpowered |
| 5.5 V-tolerant inputs | Eliminates need for external clamping diodes or level translators when interfacing with 5 V legacy controllers |
| Schmitt-trigger inputs | Rejects noise on slow-rising clock or control signals (e.g., reset lines), improving system reliability |
| Low ground bounce design | Multiple VCC/GND pins and optimized bond wire layout reduce simultaneous switching noise in high-speed buses |
Applications
| Industrial PLC Backplane Interface | Embedded Memory Expansion Bus |
|---|---|
Use Scenario: Bidirectional data exchange between CPU module and I/O expansion cards in modular automation racks. IC Role / Device Role / Timing Role: 16-bit transceiver managing address/data multiplexing and direction control between ARM-based controller and isolated CAN/IO modules. Use Value: IOFF protection ensures safe hot-swap of I/O cards without disrupting powered CPU or other modules. |
Use Scenario: Extending SRAM or Flash memory bus width in space-constrained edge compute devices. IC Role / Device Role / Timing Role: Level-shifting and bus buffering between 3.3 V SoC and 2.5 V LPDDR2 memory subsystem. Use Value: 1.9 ns propagation delay at 3.3 V enables full-speed memory access without timing margin penalty. |
| Legacy System Voltage Translation | High-Density FPGA I/O Bridging |
Use Scenario: Interfacing modern 1.8 V microcontrollers with legacy 5 V sensor hubs or display drivers. IC Role / Device Role / Timing Role: Input-tolerant transceiver translating control and status signals while preserving signal integrity. Use Value: 5.5 V input tolerance eliminates external voltage clamps, reducing BOM count and board area. |
Use Scenario: Managing bidirectional configuration and debug data between FPGA JTAG interface and external test equipment. IC Role / Device Role / Timing Role: Isolating and driving 16-bit boundary-scan or programming signals under varying load conditions. Use Value: ±24 mA drive strength ensures clean signal edges into 50 Ω cables or long PCB traces at 85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC16245ADGG,118 | Lower drive (±24 mA only at VCC ≥ 2.7 V); no 5.5 V input tolerance | Suitable for 2.7–3.6 V-only systems; not recommended for 5 V-tolerant designs | Select when cost sensitivity outweighs 5 V interface requirement and VCC ≥ 2.7 V is guaranteed |
| SN74ALVCH16245GR | Includes bus-hold on all data I/O; same VCC range but no 5.5 V input rating | Better for floating-input scenarios (e.g., unpopulated daughterboards); requires tighter VCC control | Choose when unused pins must be held without external resistors, and 5 V tolerance is unnecessary |
Compared with 74LVC16245ADGG,118, the 74ALVC16245DL,112 adds critical 5.5 V input tolerance for legacy integration; versus SN74ALVCH16245GR, it trades bus-hold for higher input voltage resilience-making it preferable in mixed-voltage backplanes where floating pins are managed externally.
Availability
74ALVC16245DL,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded memory expansion buses, legacy system voltage translation, and high-density FPGA I/O bridging requiring stable component supply and long-term lifecycle support.
Supply support for 74ALVC16245DL,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
Nexperia is a global semiconductor expert delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, computing, and consumer applications.
The 74ALVC series targets low-voltage, high-speed digital interfacing with emphasis on power efficiency, noise immunity, and mixed-voltage domain compatibility in space-constrained embedded systems.
FAQ
Is 74ALVC16245DL,112 pin-compatible with 74ALVCH16245DL,112?
No. While both share identical TSSOP48 pinout and functional mapping, the 74ALVC16245DL,112 lacks bus-hold circuitry present in the ALVCH variant. This means unused inputs require external pull-up/down resistors, unlike the ALVCH version which holds them internally. The ALVC variant instead provides 5.5 V input tolerance not found in ALVCH.
What is the maximum data rate supported by 74ALVC16245DL,112?
Based on its 3.0 ns max propagation delay (VCC = 3.0–3.6 V) and 4.4 ns max disable time, the device supports reliable bidirectional data transfer up to approximately 200 MHz under typical 50 pF load conditions. Actual achievable rate depends on PCB layout, termination, and signal integrity margins.
Can 74ALVC16245DL,112 operate at 1.2 V with full timing specifications?
Yes. The datasheet specifies full functionality-including propagation delay, drive strength, and IOFF behavior-at 1.2 V, though timing parameters are relaxed versus higher voltages (e.g., tpd max = 3.7 ns at VCC = 2.3–2.7 V). Static characteristics like VIH/VIL scale proportionally, ensuring correct logic interpretation.
Does 74ALVC16245DL,112 require external decoupling capacitors?
Yes. Due to its 48-pin TSSOP package with four VCC and eight GND pins, the device requires localized 100 nF ceramic decoupling capacitors near each VCC pin pair, plus bulk capacitance (e.g., 4.7 μF) elsewhere on the supply rail. This mitigates switching noise and ensures stable operation at high speed.
74ALVC16245DL,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVC
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74ALVC16245DL,112 FAQ
1.How can I place an order for 74ALVC16245DL,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC16245DL,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 74ALVC16245DL,112 reliable?
The price and inventory of 74ALVC16245DL,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC16245DL,112 is usually 5 days.
3.What payment methods are accepted for 74ALVC16245DL,112?
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4.How is shipping managed for 74ALVC16245DL,112?
74ALVC16245DL,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC16245DL,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 74ALVC16245DL,112?
For technical support, including 74ALVC16245DL,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC16245DL,112 requirements.
6.How does Aetrix verify that 74ALVC16245DL,112 is sourced from the original manufacturer or authorized distributors?
All 74ALVC16245DL,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 74ALVC16245DL,112 meets industry standards.
7.What is the process for return or replacement of 74ALVC16245DL,112?
All 74ALVC16245DL,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC16245DL,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 74ALVC16245DL,112 part is unused and in its original packaging.
Return procedure for 74ALVC16245DL,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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