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Nexperia USA Inc. 74ABT16245BDGG,518
- Part No.:
- 74ABT16245BDGG,518
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT16245BDGG,518.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,148
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Product details
Overview
74ABT16245BDGG,518 from Nexperia is a 16-bit bidirectional bus transceiver with dual 3-state control, designed for high-speed TTL-level data bus interfacing in industrial and computing systems. It operates from 4.5 V to 5.5 V, delivers ±64 mA output drive, supports partial power-down via IOFF, and functions across –40 °C to +85 °C. Its dual-direction-control (1DIR/2DIR) and dual-output-enable (1OE/2OE) architecture enables flexible 8-bit or 16-bit bus isolation in memory expansion and CPU peripheral interfaces.
For engineers reviewing the 74ABT16245BDGG,518 datasheet, 74ABT16245BDGG,518 pinout, 74ABT16245BDGG,518 application, or 74ABT16245BDGG,518 equivalent, this device is selected for robust 5 V bus bridging where fast propagation delay (<4 ns), high noise immunity, and live insertion capability are required - especially in backplane interconnects, FPGA I/O expansion, and legacy ISA/PCIe bridge subsystems.
Technical Context
The 74ABT16245BDGG,518 implements two independent 8-bit bidirectional transceiver blocks, each with dedicated direction (DIR) and output enable (OE) inputs. Its BiCMOS process enables TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and rail-to-rail output swing under load.
IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA and enabling safe hot-swap operation. Propagation delays are tightly controlled: tPLH/tPHL ≤ 3.5 ns and 3-state enable/disable times (tPZH/tPLZ) ≤ 5.4 ns at VCC = 5.0 V, ensuring deterministic timing in synchronous bus architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and CMOS logic rails without level-shifting. |
| Output Drive | +64 mA / –32 mA - supports driving heavy capacitive loads (e.g., >50 pF buses) and fan-out to multiple TTL inputs. |
| Propagation Delay | ≤ 3.5 ns (tPHL), ≤ 3.2 ns (tPLH) - enables reliable operation in 100+ MHz bus cycles with margin. |
| IOFF Leakage | ±100 μA at VCC = 0 V - prevents damaging back-current during partial power-down or hot-plug events. |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial-grade embedded control and communications equipment. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3 for board-level handling robustness. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees clean recognition of TTL logic levels across voltage and temperature. |
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 (Pins 1, 24) | Direction control input | Active-HIGH signal selecting data flow direction per 8-bit bank (A→B or B→A). |
| 1OE, 2OE (Pins 48, 25) | Output enable input (active LOW) | Asserting LOW enables corresponding 8-bit port; HIGH forces high-impedance OFF-state. |
| 1A0–1A7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data I/O port A (Bank 1) | First 8-bit bidirectional bus interface; electrically isolated from Bank 2 by internal gating. |
| 1B0–1B7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data I/O port B (Bank 1) | Complementary 8-bit bus for Bank 1; direction and enable controlled independently from Bank 2. |
| 2A0–2A7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data I/O port A (Bank 2) | Second independent 8-bit bus interface, supporting split-bus or full 16-bit operation. |
| 2B0–2B7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data I/O port B (Bank 2) | Paired with 2Ax for second transceiver block; shares no internal signal path with Bank 1. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce switching noise and improve PSRR in high-speed operation. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for signal integrity on 16-bit buses. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit banks | Enables simultaneous or staggered bus arbitration - e.g., CPU writes to memory while peripherals read status registers. |
| IOFF partial power-down | Prevents destructive back-current when VCC is removed while I/O lines remain active, essential for hot-swap backplanes. |
| Power-up 3-state | Outputs remain in high-impedance until VCC stabilizes, eliminating bus contention during system reset or power sequencing. |
| BiCMOS high-speed output stage | Delivers <4 ns propagation delay with TTL-compatible drive strength, reducing need for external buffers. |
| Live insertion/extraction support | Validated mechanical and electrical tolerance for plug-in modules - no special sequencing required during field maintenance. |
Applications
| Industrial PLC Backplane | Legacy ISA Bus Expansion |
|---|---|
Use Scenario: Isolating CPU address/data bus from modular I/O cards in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional bus transceiver managing 16-bit parallel data transfer between processor and field I/O modules. Use Value: Dual OE/DIR control allows per-slot bus arbitration; IOFF prevents fault propagation during card hot-swap. |
Use Scenario: Extending ISA bus signals to add-on cards in industrial PCs with legacy peripheral support. IC Role / Device Role / Timing Role: Level-translating and buffering 16-bit data/address lines between ISA slot and local FPGA-based controller. Use Value: Sub-4 ns propagation delay preserves ISA timing margins; TTL-compatible thresholds eliminate external level shifters. |
| FPGA I/O Expansion Bridge | Memory Interface Buffer |
Use Scenario: Interfacing a resource-constrained FPGA with external SRAM or flash memory requiring wider data buses. IC Role / Device Role / Timing Role: Translating and buffering bidirectional 16-bit memory data bus between FPGA I/O banks and parallel memory devices. Use Value: ±64 mA drive supports 10+ memory chip loads; dual-bank control enables interleaved access patterns. |
Use Scenario: Buffering shared data bus between microcontroller and multiple memory chips (SRAM, EPROM) in embedded systems. IC Role / Device Role / Timing Role: Enabling time-multiplexed access to multiple memory devices using 3-state isolation. Use Value: Eight GND and four VCC pins minimize ground bounce during simultaneous memory reads/writes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16245DGGR | Same logic function and pinout; TI version uses different BiCMOS process yielding slightly higher ICC (700 μA vs 250 μA max disabled). | Identical use in 5 V bus systems; TI variant shows marginally higher thermal dissipation in dense layouts. | Select for TI-design ecosystems or when sourcing consistency with other TI ABT-series components is prioritized. |
| 74LVT16245ADGG,118 | Lower VCC range (2.7–3.6 V); LVT logic family - incompatible with 5 V operation but offers lower power and 3.3 V compatibility. | Not suitable for 5 V legacy systems; used only in mixed-voltage designs where 3.3 V core logic interfaces to 5 V peripherals. | Choose only when migrating from 5 V to 3.3 V infrastructure; not a drop-in replacement due to voltage incompatibility. |
Compared with SN74ABT16245DGGR, the 74ABT16245BDGG,518 offers lower quiescent current and tighter IOFF leakage, improving power efficiency in always-on industrial modules; versus 74LVT16245ADGG,118, it provides full 5 V interoperability but requires separate level-shifting for 3.3 V domains.
Availability
74ABT16245BDGG,518 is available at Aetrix Electronics and suitable for industrial PLC backplanes, legacy ISA bus expansion, and FPGA I/O expansion bridges requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 74ABT16245BDGG,518 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 specializing in high-performance logic, analog, and discrete components, with manufacturing rooted in process innovation and automotive-grade reliability standards.
The 74ABT16245BDGG,518 belongs to Nexperia's ABT-series advanced bi-directional transceiver product line, engineered for high-speed, noise-immune 5 V bus interfacing in industrial control and computing infrastructure.
FAQ
Does the 74ABT16245BDGG,518 support hot-swap operation?
Yes - its integrated IOFF circuitry disables outputs and limits backflow current to ±100 μA when VCC = 0 V, enabling safe live insertion and extraction in powered-backplane systems without risk of latch-up or damage to upstream drivers.
What is the maximum capacitive load this transceiver can drive reliably?
Test data confirms stable operation with 50 pF load capacitance at 1 MHz, achieving tPLH/tPHL ≤ 3.5 ns and maintaining VOL ≤ 0.55 V at IOL = 64 mA - sufficient for driving up to 10 standard TTL inputs or 15 cm of FR-4 PCB trace.
Can both 8-bit banks operate in opposite directions simultaneously?
Yes - 1DIR and 2DIR are independent; setting 1DIR = HIGH and 2DIR = LOW configures Bank 1 for A→B flow while Bank 2 runs B→A, enabling concurrent bidirectional data exchange between three distinct bus domains.
Is the TSSOP48 package RoHS-compliant and lead-free?
Yes - the SOT362-1 package used for 74ABT16245BDGG,518 is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and Nexperia's environmental specifications per document "Nexperia Environmental Policy."
74ABT16245BDGG,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ABT16245BDGG,518 FAQ
1.How can I place an order for 74ABT16245BDGG,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16245BDGG,518 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 74ABT16245BDGG,518 reliable?
The price and inventory of 74ABT16245BDGG,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16245BDGG,518 is usually 5 days.
3.What payment methods are accepted for 74ABT16245BDGG,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT16245BDGG,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT16245BDGG,518?
74ABT16245BDGG,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT16245BDGG,518 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 74ABT16245BDGG,518?
For technical support, including 74ABT16245BDGG,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16245BDGG,518 requirements.
6.How does Aetrix verify that 74ABT16245BDGG,518 is sourced from the original manufacturer or authorized distributors?
All 74ABT16245BDGG,518 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 74ABT16245BDGG,518 meets industry standards.
7.What is the process for return or replacement of 74ABT16245BDGG,518?
All 74ABT16245BDGG,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16245BDGG,518, 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 74ABT16245BDGG,518 part is unused and in its original packaging.
Return procedure for 74ABT16245BDGG,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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