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Nexperia USA Inc. 74ABT162245ADL,112
- Part No.:
- 74ABT162245ADL,112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ABT162245ADL,112.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,063
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Product details
Overview
74ABT162245ADL,112 from Nexperia is a 16-bit bidirectional bus transceiver with integrated 30 Ω series termination resistors, 3-state outputs, dual direction control (1DIR/2DIR), and dual output enables (1OE/2OE). It operates from 4.5 V to 5.5 V, delivers ±32 mA/±12 mA drive strength, and supports partial power-down via IOFF circuitry. It is used in high-speed TTL-compatible backplane and board-level data buses requiring impedance-matched signal integrity.
For engineers reviewing the 74ABT162245ADL,112 datasheet, 74ABT162245ADL,112 pinout, 74ABT162245ADL,112 application, or 74ABT162245ADL,112 equivalent, this device is selected for 16-bit bidirectional data routing in industrial control backplanes, memory expansion interfaces, and legacy PCI-style interconnects where on-die termination eliminates external resistor networks and reduces PCB layout complexity.
Technical Context
This transceiver implements two independent 8-bit bidirectional channels, each with dedicated DIR and OE controls-enabling flexible half-duplex or full-duplex operation without external logic. Its BiCMOS architecture combines bipolar speed (typical tPLH/tPHL = 2.0/3.0 ns) with CMOS low static power (ICC ≤ 0.7 mA).
The IOFF circuit ensures safe bus isolation during power sequencing by disabling outputs and limiting backflow current when VCC = 0 V, while the 30 Ω series resistors match typical PCB trace impedances (50–75 Ω) to suppress reflections at up to 100 MHz data rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus Width | 16-bit bidirectional (configurable as two independent 8-bit channels) |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL and LVTTL systems |
| Output Drive | +12 mA / −32 mA - sufficient to drive 50 Ω transmission lines and multiple TTL loads |
| Propagation Delay | 1.0–3.5 ns (tPLH/tPHL) - enables >200 Mbps data throughput in point-to-point links |
| Termination | Integrated 30 Ω series resistors per output - eliminates need for 16 discrete SMD resistors and saves ~24 mm² PCB area |
| IOFF Support | Active at VCC = 0 V - prevents damaging back-current during hot-swap or partial power-down sequences |
| Operating Temp | −40 °C to +85 °C - qualified for industrial temperature range without derating |
Pinout & Package
TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48-pin, body width 6.1 mm, 0.5 mm pitch, lead finish matte tin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH logic selects data flow direction per 8-bit channel (A→B or B→A) |
| 1OE, 2OE | Output enable input | Active-LOW enables/disables corresponding 8-bit output group into high-impedance state |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional bus ports connected to local subsystem (e.g., CPU or FPGA side) |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | First and second 8-bit bidirectional bus ports connected to remote subsystem (e.g., peripheral or memory side) |
| VCC (pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins minimize switching noise and improve PSRR across high-frequency operation |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths and reduce ground bounce in fast-switching applications |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel 8-bit configuration | Enables independent control of two data lanes-reducing glue logic and simplifying timing-critical bus arbitration |
| On-die 30 Ω series termination | Matches common PCB trace impedances without external components, lowering BOM count and improving signal fidelity at 100+ MHz |
| IOFF partial power-down | Prevents destructive back-current when VCC is off but bus remains active-critical for hot-pluggable modules and modular systems |
| BiCMOS process | Delivers TTL-compatible voltage thresholds and drive strength with CMOS-level static power consumption (≤0.7 mA ICC) |
| Latch-up immunity | Exceeds 500 mA per JESD78 Class II Level B-ensures robustness in noisy industrial environments |
Applications
| Industrial Backplane Interface | Memory Expansion Subsystem |
|---|---|
|
Use Scenario: Bidirectional data transfer between main controller and distributed I/O modules over 16-bit parallel backplane. IC Role / Device Role / Timing Role: Bus transceiver providing level-shifted, terminated, and direction-controlled data path between isolated voltage domains. Use Value: Integrated 30 Ω resistors eliminate stub reflections on 15 cm backplane traces, maintaining signal integrity at 50 MHz clock rates without added layout constraints. |
Use Scenario: Extending address/data bus from microcontroller to external SRAM or Flash memory array. IC Role / Device Role / Timing Role: Direction-controlled buffer isolating memory bus from processor during DMA cycles and enabling shared bus arbitration. Use Value: Dual OE/DIR control allows precise timing of read/write strobes and eliminates bus contention during memory access handshaking. |
| Legacy PCI-Compatible Bridge | Test Equipment Data Acquisition Bus |
|
Use Scenario: Interfacing modern FPGA-based control logic to legacy 5 V PCI peripheral cards. IC Role / Device Role / Timing Role: Voltage-tolerant, TTL-compatible transceiver translating between 3.3 V FPGA I/O and 5 V PCI bus signals. Use Value: IOFF protection prevents damage during card insertion/removal while maintaining bus hold stability on un-driven lines. |
Use Scenario: High-speed parallel data capture from ADC arrays into FPGA-based acquisition logic. IC Role / Device Role / Timing Role: Low-skew, terminated bus interface synchronizing multi-channel sample data with system clock domain. Use Value: Sub-4 ns propagation delay and matched channel timing ensure <1 ns inter-lane skew across all 16 bits-critical for coherent sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74ABTH162245ADGG | Includes bus-hold inputs (50–75 μA hold current); same pinout, same termination, same timing | Eliminates need for external pull-ups on unused inputs in floating-bus scenarios | Select when system has unterminated or intermittently connected data lines requiring passive input stabilization |
| SN74LVC16245ADGGR | 3.3 V only (1.65–3.6 V), no internal termination, lower drive (±24 mA), no IOFF | Requires external 30 Ω series resistors and level-shifting for 5 V systems | Select only for pure 3.3 V designs where cost and power efficiency outweigh termination convenience and IOFF safety |
Compared with 74ABT162245ADL,112, the 74ABTH162245ADGG adds bus-hold functionality without trade-offs in speed or termination, while SN74LVC16245ADGGR sacrifices 5 V compatibility, built-in termination, and IOFF protection to achieve lower voltage operation and reduced static power.
Availability
74ABT162245ADL,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion subsystems, and test equipment data acquisition buses requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 74ABT162245ADL,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, analog, and MOSFET solutions optimized for industrial, automotive, and computing applications.
The 74ABT series targets high-speed, 5 V TTL-compatible digital interfacing with emphasis on signal integrity, power sequencing robustness, and system-level reliability in demanding embedded environments.
FAQ
What is the function of the IOFF circuit in the 74ABT162245ADL,112?
The IOFF circuit disables all outputs and limits leakage current to ±100 μA when VCC = 0 V, preventing damaging backflow current from live bus lines into a powered-down device. This feature is essential for hot-swap capability and safe partial power-down in modular systems, and it is verified per JESD78 Class II Level B latch-up testing.
Can the 74ABT162245ADL,112 be used as two independent 8-bit transceivers?
Yes-pins 1DIR/1OE control the first 8-bit channel (1A0–1A7 ↔ 1B0–1B7), and 2DIR/2OE control the second (2A0–2A7 ↔ 2B0–2B7). Each channel operates independently with separate timing, enabling simultaneous bidirectional transfers or asymmetric data flow configurations without external gating logic.
Does the 74ABT162245ADL,112 require external termination resistors?
No-the device integrates 30 Ω series termination resistors on every output, matching typical PCB trace impedances for clean edge transitions and minimal overshoot. This eliminates the need for 16 discrete 0402/0603 resistors, reducing BOM count, assembly steps, and potential impedance mismatch due to parasitic inductance.
How does the 74ABT162245ADL,112 differ from the 74ABTH162245A variant?
The 74ABTH162245A includes bus-hold circuitry (50–75 μA hold current) on all data inputs to maintain valid logic states when inputs float, whereas the 74ABT162245A (including ADL,112) lacks this feature. Both share identical pinout, timing, termination, IOFF, and voltage specifications-only bus-hold functionality distinguishes them.
74ABT162245ADL,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- 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, 12mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74ABT162245ADL,112 FAQ
1.How can I place an order for 74ABT162245ADL,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT162245ADL,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 74ABT162245ADL,112 reliable?
The price and inventory of 74ABT162245ADL,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT162245ADL,112 is usually 5 days.
3.What payment methods are accepted for 74ABT162245ADL,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT162245ADL,112 transactions.
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4.How is shipping managed for 74ABT162245ADL,112?
74ABT162245ADL,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT162245ADL,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 74ABT162245ADL,112?
For technical support, including 74ABT162245ADL,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT162245ADL,112 requirements.
6.How does Aetrix verify that 74ABT162245ADL,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT162245ADL,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 74ABT162245ADL,112 meets industry standards.
7.What is the process for return or replacement of 74ABT162245ADL,112?
All 74ABT162245ADL,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT162245ADL,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 74ABT162245ADL,112 part is unused and in its original packaging.
Return procedure for 74ABT162245ADL,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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