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NXP Semiconductors 74ALVT16245DL,118
- Part No.:
- 74ALVT16245DL,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVT16245DL,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,571
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Product details
Overview
74ALVT16245DL,118 from NXP Semiconductors (formerly Philips) is a 16-bit non-inverting 3-state transceiver operating at 2.5V or 3.3V supply with 5V-tolerant I/O pins. It features bidirectional data flow controlled by DIR and OE inputs, bus-hold inputs eliminating external pull-ups, and ±64mA/–32mA output drive capability. It is used in high-speed backplane and memory bus interface applications requiring level translation between 2.5V/3.3V logic and 5V systems.
For engineers reviewing the 74ALVT16245DL,118 datasheet, 74ALVT16245DL,118 pinout, 74ALVT16245DL,118 application, or 74ALVT16245DL,118 equivalent, key selection criteria include propagation delay (≤2.4ns at 3.3V), bus-hold functionality, 5V I/O compatibility, and SSOP-48 package thermal performance for dense PCB layouts.
Technical Context
The 74ALVT16245DL,118 implements dual 8-bit transceiver sections (1A↔1B and 2A↔2B), each with independent direction (nDIR) and output enable (nOE) controls. Its BiCMOS architecture enables TTL-compatible input thresholds and fast switching while maintaining low ICCZ (≤70µA at 3.3V) in 3-state mode.
It supports live insertion/extraction and power-up 3-state behavior, with latch-up protection >500mA per JEDEC Std 17 and ESD robustness >2000V HBM. Bus-hold current ranges from ±75µA to ±140µA depending on VCC and input voltage, ensuring stable logic states on floating data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3–2.7V or 3.0–3.6V - Dual-voltage operation enables interoperability across 2.5V and 3.3V system domains |
| Propagation Delay | 1.5ns typical (3.3V, CL=50pF) - Enables ≤667MHz data rates in point-to-point bus configurations |
| I/O Voltage Tolerance | 0–5.5V input, –0.5–7.0V output - Allows direct connection to legacy 5V buses without level-shifting components |
| Output Drive | +64mA sink / –32mA source - Supports driving 50Ω transmission lines and multiple CMOS loads simultaneously |
| Bus-Hold Current | ±75µA to ±140µA - Maintains valid logic levels on un-driven A/B port pins, eliminating need for external pull resistors |
| 3-State Off Current | ≤100µA (ICCZ) - Minimizes standby power in large-scale bus architectures with many disabled devices |
| ESD Protection | ≥2000V HBM, ≥400V MM - Ensures robustness during board handling and system integration |
Pinout & Package
74ALVT16245DL,118 is housed in a 48-pin plastic shrink small outline package (SSOP) with 7.5mm body width (SOT370-1), optimized for high-density PCB layouts and thermal dissipation in industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | nDIR | Direction control input - Low enables A→B data flow; High enables B→A flow per 8-bit section |
| 25, 48 | nOE | Active-low output enable - Drives all outputs to high-impedance when asserted, enabling bus sharing |
| 2–23, 26–47 (even/odd pairs) | nA0–nA7, nB0–nB7 | Bidirectional I/O ports - Each pair forms one 8-bit transceiver channel (1A/1B and 2A/2B) |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Ground reference - Eight dedicated ground pins reduce ground bounce in high-speed switching |
| 7, 18, 31, 42 | VCC | Positive supply - Four VCC pins improve power delivery integrity and reduce simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant I/O | Supports mixed-voltage systems without external level shifters - reduces BOM count and layout complexity |
| Bus-hold circuitry | Eliminates need for external pull-up/pull-down resistors on unused or unterminated data lines - saves PCB space and improves signal integrity |
| Live insertion/extraction | Enables hot-swap capability in modular backplane systems - avoids system downtime during field upgrades |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes - prevents bus contention during power sequencing |
| Latch-up immunity | Exceeds 500mA per JEDEC Std 17 - ensures reliability in noisy industrial environments with transient coupling |
Applications
| Memory Subsystem Interface | Backplane Data Bus |
|---|---|
Use Scenario: Interfacing 3.3V microprocessor address/data bus to 5V SRAM or Flash memory arrays. IC Role / Device Role / Timing Role: Bidirectional level-translating transceiver managing timing-critical read/write cycles with sub-2.5ns propagation delay. Use Value: Eliminates discrete level shifters and pull resistors while maintaining setup/hold timing margins under 50pF load conditions. | Use Scenario: Connecting modular line cards in telecom chassis where boards may be inserted/removed while powered. IC Role / Device Role / Timing Role: Hot-pluggable bus interface isolating card-local logic from shared backplane signals using 3-state control. Use Value: Prevents bus contention during insertion via power-up 3-state and live-insertion rated I/O structures. |
| Industrial PLC I/O Expansion | Test Equipment Signal Routing |
Use Scenario: Extending microcontroller GPIO to remote I/O modules over long traces subject to noise and floating nodes. IC Role / Device Role / Timing Role: Robust bus driver with bus-hold inputs maintaining defined logic states on unterminated stubs. Use Value: Reduces spurious interrupts and communication errors caused by floating inputs in electrically noisy factory environments. | Use Scenario: Multiplexing DUT signals between multiple test instruments in automated test systems. IC Role / Device Role / Timing Role: High-speed bidirectional switch enabling reconfigurable signal paths with minimal propagation skew. Use Value: Achieves <430ps pin-to-pin skew at 3.3V, preserving signal integrity for high-frequency digital pattern generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH16245VR | TI part with identical 2.5V/3.3V operation, 5V-tolerant I/O, and SSOP-48 packaging; tPLH/tPHL = 1.8ns typical at 3.3V | Same functional role but requires verification of bus-hold strength (±60µA min) and ICCZ (≤100µA) against system leakage budgets | Select when TI supply chain alignment or qualification history is required; verify thermal derating above 70°C |
| 74LVT16245ADGG,118 | NXP variant with same pinout and AC specs but lacks bus-hold circuitry - requires external pull resistors on unused inputs | Suitable only where all inputs are actively driven; unsuitable for floating-bus or hot-swap scenarios | Choose only for cost-sensitive designs with fully terminated buses and no live-insertion requirement |
Compared with 74ALVT16245DL,118, SN74ALVTH16245VR offers comparable timing and robustness but slightly lower bus-hold current, while 74LVT16245ADGG,118 removes bus-hold entirely - making the original 74ALVT16245DL,118 uniquely suited for systems with unterminated or dynamically configured data paths.
Availability
74ALVT16245DL,118 is available at Aetrix Electronics and suitable for memory subsystem interfaces, backplane data buses, industrial PLC I/O expansion, and test equipment signal routing requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for 74ALVT16245DL,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
NXP Semiconductors is a global semiconductor company delivering high-performance analog, logic, and interface solutions for automotive, industrial, and communications markets.
The 74ALVT16245DL,118 belongs to NXP's advanced ALVT logic family, engineered for high-speed, low-power bidirectional bus interfacing in mixed-voltage systems with stringent ESD and latch-up requirements.
FAQ
What voltage levels does the 74ALVT16245DL,118 support on its I/O pins?
The 74ALVT16245DL,118 supports 5V-tolerant I/O operation, accepting input voltages from –0.5V to +7.0V and driving outputs up to +7.0V in high state. Its VCC supply operates at either 2.5V (2.3–2.7V range) or 3.3V (3.0–3.6V range), enabling seamless interfacing between 2.5V/3.3V logic domains and legacy 5V buses without external level shifters. This tolerance is confirmed in the Absolute Maximum Ratings and DC Electrical Characteristics tables of the Philips 1998 datasheet.
Does the 74ALVT16245DL,118 include bus-hold functionality, and how does it affect system design?
Yes, the 74ALVT16245DL,118 integrates bus-hold circuitry on all A and B port inputs, providing ±75µA to ±140µA overdrive current depending on VCC and input voltage. This eliminates the need for external pull-up or pull-down resistors on unused or unterminated data lines, reducing component count, PCB area, and potential signal integrity issues caused by resistor parasitics. The feature is explicitly documented in the FEATURES and DC ELECTRICAL CHARACTERISTICS sections of the datasheet.
What is the maximum propagation delay for the 74ALVT16245DL,118 at 3.3V operation?
At 3.3V supply and 50pF load, the 74ALVT16245DL,118 has a maximum propagation delay (tPLH/tPHL) of 2.4ns, with typical values of 1.5ns. This specification is measured from input transition (nAx or nBx) to corresponding output transition (nBx or nAx) under recommended operating conditions (Tamb = –40°C to +85°C). The value is confirmed in the AC CHARACTERISTICS (3.3V 0.3V RANGE) table on page 5 of the Philips datasheet.
Can the 74ALVT16245DL,118 be used in hot-swap applications?
Yes, the 74ALVT16245DL,118 supports live insertion/extraction as stated in its FEATURES list. Its design includes power-up 3-state behavior, robust ESD protection (>2000V HBM), and latch-up immunity exceeding 500mA per JEDEC Std 17 - all critical for safe operation during board insertion into a powered backplane. These capabilities are validated in the Philips product specification and align with industrial hot-swap interface requirements.
What package type is used for the 74ALVT16245DL,118, and what are its mechanical characteristics?
The 74ALVT16245DL,118 uses a 48-pin plastic shrink small outline package (SSOP) with 7.5mm body width, designated SOT370-1. It features gull-wing leads, a standard pitch of 0.5mm, and is rated for operation from –40°C to +85°C. Package dimensions and land pattern recommendations are specified in the Philips SOT370-1 datasheet, and the ordering code "DL" explicitly denotes this SSOP variant.
74ALVT16245DL,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 32mA, 64mA
- 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
74ALVT16245DL,118 FAQ
1.How can I place an order for 74ALVT16245DL,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT16245DL,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 74ALVT16245DL,118 reliable?
The price and inventory of 74ALVT16245DL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT16245DL,118 is usually 5 days.
3.What payment methods are accepted for 74ALVT16245DL,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT16245DL,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVT16245DL,118?
74ALVT16245DL,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT16245DL,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 74ALVT16245DL,118?
For technical support, including 74ALVT16245DL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT16245DL,118 requirements.
6.How does Aetrix verify that 74ALVT16245DL,118 is sourced from the original manufacturer or authorized distributors?
All 74ALVT16245DL,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 74ALVT16245DL,118 meets industry standards.
7.What is the process for return or replacement of 74ALVT16245DL,118?
All 74ALVT16245DL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT16245DL,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 74ALVT16245DL,118 part is unused and in its original packaging.
Return procedure for 74ALVT16245DL,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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