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NXP Semiconductors 74ALVT16245DGG,512
- Part No.:
- 74ALVT16245DGG,512
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVT16245DGG,512.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,515
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Product details
Overview
74ALVT16245DGG,512 from Philips Semiconductors is a 2.5V/3.3V 16-bit non-inverting bus transceiver with 3-state outputs, bidirectional data flow controlled by DIR and OE inputs, ±32mA/±64mA drive capability, and 5V-tolerant I/O for mixed-voltage system interfacing in memory expansion and backplane applications.
For engineers reviewing the 74ALVT16245DGG,512 datasheet, 74ALVT16245DGG,512 pinout, 74ALVT16245DGG,512 application, or 74ALVT16245DGG,512 equivalent, key selection criteria include 3.3V-compatible propagation delay (1.5ns typ), bus-hold inputs eliminating external pull-ups, live insertion support, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The 74ALVT16245DGG,512 implements dual 8-bit bidirectional data paths (A0–A7 ↔ B0–B7) with independent direction (DIR) and output enable (OE) controls per port group, enabling flexible data routing between 3.3V logic domains and legacy 5V buses without level shifters. Its BiCMOS process delivers TTL-compatible input thresholds and rail-to-rail output swing under 3.3V supply.
Bus-hold circuitry maintains stable logic states on unused A/B port pins at VI = 0.7V or 2.0V (2.3V VCC) with ±130µA overdrive current, while power-up 3-state behavior prevents bus contention during system reset. Absolute maximum ratings include 7.0V input voltage tolerance and 500mA latch-up immunity per JEDEC 17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3V–2.7V or 3.0V–3.6V - Supports dual-supply system integration with strict regulation requirements. |
| tPLH/tPHL | 1.5ns typical at 3.3V - Enables >300MHz data transfer rates in high-speed bus interfaces. |
| IOL/IOH | 64mA sink / –32mA source - Drives heavy capacitive loads (e.g., 270pF traces) without signal degradation. |
| VIH/VIL | 1.7V/0.7V min at 3.3V - Ensures robust noise margin against TTL and CMOS logic families. |
| ICCZ | 70µA max at 3.3V - Minimizes standby power in always-on bus buffer applications. |
| CI/O | 9pF - Reduces switching noise and improves signal integrity on multi-drop buses. |
| ESD Rating | 2000V HBM - Withstands handling and board assembly without additional protection circuitry. |
Pinout & Package
74ALVT16245DGG,512 uses a 48-pin plastic thin shrink small outline package (TSSOP Type II, SOT362-1), 6.1mm body width, 0.5mm lead pitch, and exposed pad not present - suitable for reflow soldering and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | nDIR | Active-High direction control for corresponding A↔B port pair - determines data flow direction per 8-bit segment. |
| 25, 48 | nOE | Active-Low 3-state enable - disables all outputs simultaneously to isolate bus segments. |
| 2–23, 26–47 | nA0–nA7, nB0–nB7 | Bidirectional I/O pins with bus-hold - retain last valid logic state when floating, eliminating external pull resistors. |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight dedicated ground connections - reduce ground bounce and improve noise immunity in high-speed switching. |
| 7, 18, 31, 42 | VCC | Four independent VCC pins - lower supply impedance and minimize IR drop across wide die layout. |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant I/O | Withstands 5.5V inputs while operating at 2.5V/3.3V VCC - enables direct connection to legacy 5V peripherals without level translators. |
| Bus-hold inputs | Eliminates need for 10kΩ external pull-up/pull-down resistors on unused A/B pins - reduces BOM count and PCB area. |
| Live insertion/extraction | Supports hot-plug operation in modular backplanes - prevents bus glitches during card replacement without system shutdown. |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes above 1.2V - avoids spurious signals during power sequencing. |
| Latch-up immunity | Exceeds 500mA per JEDEC Std 17 - ensures reliability in noisy industrial environments with transient coupling. |
Applications
| Memory Expansion Interface | Backplane Data Bus |
|---|---|
Use Scenario: Interfacing 3.3V microprocessor local bus to 5V SRAM/Flash modules in embedded controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing address/data strobe timing between mismatched voltage domains. Use Value: Eliminates discrete level shifters and reduces propagation delay skew vs. multi-chip solutions, enabling 100MHz+ burst transfers. | Use Scenario: Isolating CPU module from peripheral slots in modular test equipment with hot-swap capability. IC Role / Device Role / Timing Role: 3-state bus buffer providing directional control and bus contention prevention during card insertion/removal. Use Value: Live insertion support allows field upgrades without powering down main chassis, reducing system downtime. |
| Industrial PLC I/O Module | Telecom Line Card Interface |
Use Scenario: Buffering digital I/O signals between 3.3V FPGA controller and 5V relay/driver circuits in programmable logic controllers. IC Role / Device Role / Timing Role: High-drive transceiver driving 64mA loads directly into optocoupler inputs or LED indicators. Use Value: Integrated bus-hold prevents floating inputs during configuration changes, improving functional safety compliance. | Use Scenario: Interfacing 3.3V DSP core to 5V analog front-end (AFE) and codec ICs in base station line cards. IC Role / Device Role / Timing Role: Low-skew (≤267ps tPS max at 3.3V) transceiver maintaining signal integrity across 16-bit parallel control/data paths. Use Value: Tight skew control minimizes setup/hold violations in time-critical JTAG or serial control interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVC16245DGGR | Lower drive (±24mA), 1.65V–3.6V VCC range, no bus-hold, 48-pin TSSOP same footprint | Not suitable for 5V-tolerant I/O or high-current bus loading; requires external pull resistors | Select when cost sensitivity outweighs 5V tolerance and bus-hold needs. |
| 74LVT16245ADGG,118 | Same 2.7V–3.6V VCC, identical pinout, but lacks bus-hold and live insertion rating | Higher risk of floating-input faults in unpopulated slots; no hot-swap certification | Choose only if legacy design reuse mandates LVT family compatibility without bus-hold dependency. |
Compared with SN74ALVC16245DGGR and 74LVT16245ADGG,118, the 74ALVT16245DGG,512 uniquely combines 5V I/O tolerance, integrated bus-hold, and live insertion support - making it the only option for robust hot-pluggable 3.3V/5V bridging where signal integrity and fault resilience are critical.
Availability
74ALVT16245DGG,512 is available at Aetrix Electronics and suitable for memory expansion interfaces, backplane data buses, industrial PLC I/O modules, and telecom line card interfaces requiring stable component supply and long-term obsolescence management.
Supply support for 74ALVT16245DGG,512 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
Philips Semiconductors (now NXP Semiconductors) is a global leader in high-performance logic and interface ICs, founded in the Netherlands with R&D centers across Europe and Asia.
The ALVT family was engineered for 2.5V/3.3V mixed-signal systems needing 5V I/O compatibility, targeting telecom infrastructure, industrial automation, and computing backplanes where reliability under voltage mismatch is essential.
FAQ
What voltage levels does the 74ALVT16245DGG,512 support on its I/O pins?
The 74ALVT16245DGG,512 supports 5.5V maximum input voltage on all A/B port pins while operating from either 2.5V ±0.2V or 3.3V ±0.3V VCC supply. This 5V-tolerant I/O capability allows direct interfacing with legacy 5V logic without external level shifters, and is confirmed in the Absolute Maximum Ratings table (VI = –0.5V to +7.0V) and DC Electrical Characteristics sections for both voltage ranges.
Does the 74ALVT16245DGG,512 require external pull-up resistors on unused inputs?
No, the 74ALVT16245DGG,512 includes integrated bus-hold circuitry on all A/B port inputs, providing ±130µA overdrive current at 3V VCC to maintain stable logic states without external pull resistors. This feature is explicitly documented in the FEATURES list and DC Electrical Characteristics tables under IHOLD parameter, eliminating BOM cost and PCB space for passive components.
What is the maximum data rate supported by the 74ALVT16245DGG,512 in a real-world bus application?
The 74ALVT16245DGG,512 achieves 1.5ns typical propagation delay (tPLH/tPHL) at 3.3V VCC with 50pF load, supporting theoretical data rates exceeding 300MHz in point-to-point configurations. Real-world sustained throughput depends on trace capacitance and termination; the datasheet confirms stable operation up to 270pF load with <4.5ns max disable time (tPLZ), making it suitable for 100MHz DDR buses with margin.
Can the 74ALVT16245DGG,512 be used in hot-swap applications?
Yes, the 74ALVT16245DGG,512 is explicitly rated for live insertion/extraction per manufacturer specification. Its power-up 3-state behavior (outputs remain high-impedance until VCC >1.2V) and 500mA latch-up immunity prevent bus contention and damage during hot-plug events, making it qualified for modular backplane and telecom line card designs requiring field-replaceable units.
What package type and dimensions does the 74ALVT16245DGG,512 use?
The 74ALVT16245DGG,512 uses a 48-pin plastic thin shrink small outline package (TSSOP Type II, SOT362-1) with 6.1mm body width, 0.5mm lead pitch, and standard gull-wing lead form. This package is verified in the Ordering Information section and mechanical drawings SOT362-1, ensuring compatibility with automated SMT assembly and IPC-7351B land patterns.
74ALVT16245DGG,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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-TSSOP
74ALVT16245DGG,512 FAQ
1.How can I place an order for 74ALVT16245DGG,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT16245DGG,512 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 74ALVT16245DGG,512 reliable?
The price and inventory of 74ALVT16245DGG,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT16245DGG,512 is usually 5 days.
3.What payment methods are accepted for 74ALVT16245DGG,512?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT16245DGG,512 transactions.
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4.How is shipping managed for 74ALVT16245DGG,512?
74ALVT16245DGG,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT16245DGG,512 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 74ALVT16245DGG,512?
For technical support, including 74ALVT16245DGG,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT16245DGG,512 requirements.
6.How does Aetrix verify that 74ALVT16245DGG,512 is sourced from the original manufacturer or authorized distributors?
All 74ALVT16245DGG,512 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 74ALVT16245DGG,512 meets industry standards.
7.What is the process for return or replacement of 74ALVT16245DGG,512?
All 74ALVT16245DGG,512 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT16245DGG,512, 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 74ALVT16245DGG,512 part is unused and in its original packaging.
Return procedure for 74ALVT16245DGG,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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