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Nexperia USA Inc. 74ABT162245ADGG,51
- Part No.:
- 74ABT162245ADGG,51
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT162245ADGG,51.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
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Product details
Overview
74ABT162245ADGG,51 from Nexperia is a 16-bit bidirectional bus transceiver with integrated 30 Ω series termination resistors, 3-state outputs, and dual independent direction/output-enable control (1DIR/1OE and 2DIR/2OE). It operates from 4.5 V to 5.5 V, delivers ±32 mA LOW-level / +12 mA HIGH-level drive, and supports partial power-down via IOFF circuitry. It is used in high-speed parallel bus interfaces between microcontrollers and peripheral ICs in industrial control backplanes.
For engineers reviewing the 74ABT162245ADGG,51 datasheet, 74ABT162245ADGG,51 pinout, 74ABT162245ADGG,51 application, or 74ABT162245ADGG,51 equivalent, key selection criteria include bidirectional 16-bit data flow control, on-die 30 Ω termination for signal integrity, IOFF-enabled safe power sequencing, and TSSOP48 package compatibility with dense PCB layouts.
Technical Context
This transceiver implements two independent 8-bit bidirectional data paths (A↔B), each controlled by dedicated DIR and OE inputs-enabling flexible half-duplex or full-duplex bus partitioning. Its BiCMOS output stage combines bipolar speed with CMOS input characteristics, delivering sub-5 ns propagation delays (tPLH/tPHL) and fast 3-state enable/disable times (tPZH/tPLZ).
The integrated 30 Ω series termination resistors are placed at each output terminal, reducing reflections on transmission lines without requiring external components. The IOFF circuit actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA and enabling hot-swap and partial power-down system architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus width | 16-bit bidirectional (configurable as two 8-bit channels) |
| Supply voltage | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL and LVTTL logic domains |
| Output drive | −32 mA (LOW), +12 mA (HIGH) - drives heavy capacitive loads and multiple TTL inputs |
| Propagation delay | 1.0–3.5 ns (tPLH/tPHL) - enables >200 MHz bus operation with tight timing margins |
| Termination | Integrated 30 Ω series resistor per output - eliminates discrete termination components and layout area |
| IOFF leakage | ±100 μA at VCC = 0 V - prevents damaging back-current during power sequencing |
| Operating temp | −40 °C to +85 °C - qualified for industrial ambient environments |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch - optimized for automated SMT assembly and thermal dissipation in space-constrained boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Determines data flow direction per 8-bit channel (A→B or B→A); active-HIGH logic |
| 1OE, 2OE | Output enable input | Asserted LOW enables outputs; HIGH forces 3-state (high-impedance) mode per channel |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional data terminals connected to controller-side bus |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | First and second 8-bit bidirectional data terminals connected to peripheral-side bus |
| VCC (pins 7,18,31,42) | Power supply | Multiple distributed VCC pins minimize switching noise and IR drop across die |
| GND (pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths for high-speed switching currents |
Key Features
| Feature | Design Value |
|---|---|
| Dual 8-bit channel control | Independent 1DIR/1OE and 2DIR/2OE allow asymmetric bus arbitration and selective channel isolation |
| On-die 30 Ω termination | Eliminates need for 32 external 30 Ω resistors, saving 128 mm² PCB area and reducing BOM count |
| IOFF partial power-down | Enables safe insertion/removal of live cards in modular systems without disrupting powered sections |
| BiCMOS output stage | Combines <5 ns propagation delay with ±32 mA sink capability-exceeds standard TTL drive |
| ESD robustness | HBM >2000 V and CDM >1000 V-reduces field failure risk in handling and assembly |
Applications
| Industrial Backplane Interface | Microcontroller Peripheral Expansion |
|---|---|
Use Scenario: Interfacing an ARM Cortex-M7 MCU to multiple 8-bit parallel peripherals (ADCs, DACs, GPIO expanders) over a shared 16-bit bus. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver with direction-controlled data routing and 30 Ω source termination to suppress ringing on 10 cm traces. Use Value: Enables deterministic 100+ MHz bus operation without external termination, reducing signal integrity debugging time by >40%. | Use Scenario: Isolating legacy 5 V parallel memory (SRAM, EPROM) from a modern 3.3 V FPGA-based controller using level translation. IC Role / Device Role / Timing Role: Voltage-tolerant 5 V transceiver providing bidirectional data flow with IOFF protection during FPGA configuration reset. Use Value: Prevents backfeed current into unpowered FPGA I/O banks, eliminating latch-up risk during power sequencing. |
| Modular PLC I/O Carrier | Test Equipment Bus Arbitration |
Use Scenario: Hot-pluggable I/O module carrier board connecting field sensors/actuators to a central PLC CPU via a 16-bit parallel backplane. IC Role / Device Role / Timing Role: Dual-channel transceiver enabling independent enable/disable of sensor and actuator data lanes during module insertion. Use Value: IOFF functionality guarantees zero current injection during hot-swap, meeting IEC 61000-4-2 Class 3 ESD immunity requirements. | Use Scenario: Shared test bus among multiple DUT interface cards in automated test equipment, where only one card drives the bus at a time. IC Role / Device Role / Timing Role: 3-state bus isolator with fast tPZH/tPLZ (<5 ns) ensuring clean bus release before next card asserts drive. Use Value: Sub-5 ns disable timing prevents bus contention glitches, increasing test repeatability and reducing false-fail rate by >99.9%. |
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 |
|---|---|---|---|
| SN74ABT162245DGGR | TI version in same TSSOP48 package; identical 30 Ω termination and IOFF, but slightly higher ICC (0.7 mA vs 0.3 mA typical) | Valid for drop-in replacement where TI sourcing is preferred; same timing and drive specs | Select when TI supply chain alignment or existing TI design reuse is required |
| 74LVTH162245ADGG,118 | Nexperia's 3.3 V variant (2.7–3.6 V supply); lower drive (−24/+12 mA), no integrated termination | Requires external 33 Ω resistors; suited for mixed-voltage 3.3 V systems without 5 V rails | Choose only for 3.3 V-only designs needing lower power and no 5 V compatibility |
Compared with SN74ABT162245DGGR, the 74ABT162245ADGG,51 offers lower static current and identical timing; versus 74LVTH162245ADGG,118, it provides native 5 V operation and eliminates 32 external terminations-critical for signal integrity in high-speed 5 V backplanes.
Availability
74ABT162245ADGG,51 is available at Aetrix Electronics and suitable for industrial backplane interfaces, microcontroller peripheral expansion, modular PLC carriers, and automated test equipment requiring stable component supply and long-term lifecycle support.
Supply support for 74ABT162245ADGG,51 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 headquartered in Nijmegen, Netherlands, specializing in high-performance logic, analog, and discrete components for industrial, automotive, and computing applications.
The 74ABT series targets high-speed, robust 5 V digital interfacing-designed specifically for noise-sensitive parallel bus systems requiring precise timing, strong drive, and reliable power sequencing in harsh environments.
FAQ
What is the function of the IOFF circuit in the 74ABT162245ADGG,51?
The IOFF circuit disables all outputs when VCC drops to 0 V, limiting backflow current to ±100 μA. This prevents damage to powered downstream devices during hot-swap or partial power-down events, and is verified per JESD78 Class II Level B latch-up testing.
Can the 74ABT162245ADGG,51 be used in a 3.3 V system?
No-it is specified only for 4.5 V to 5.5 V operation. Applying 3.3 V violates recommended operating conditions and results in undefined logic thresholds, degraded drive strength, and potential functional failure. Use the 74LVTH162245ADGG,118 for 3.3 V systems.
How does the integrated 30 Ω termination improve signal integrity?
Each output includes a 30 Ω series resistor matching typical PCB trace impedance (50–75 Ω), reducing signal reflections and overshoot on runs up to 15 cm. Measured tPLH/tPHL remains stable across load capacitances up to 50 pF without external tuning.
Are the 1DIR/2DIR and 1OE/2OE inputs 5 V tolerant when driven by 3.3 V logic?
Yes-input thresholds are TTL-compatible: VIH = 2.0 V min, VIL = 0.8 V max. A 3.3 V logic HIGH (≥2.4 V) fully satisfies VIH across temperature, and the BiCMOS input structure ensures reliable switching without level shifters.
74ABT162245ADGG,51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- 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, 12mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ABT162245ADGG,51 FAQ
1.How can I place an order for 74ABT162245ADGG,51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT162245ADGG,51 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 74ABT162245ADGG,51 reliable?
The price and inventory of 74ABT162245ADGG,51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT162245ADGG,51 is usually 5 days.
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Once your 74ABT162245ADGG,51 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 74ABT162245ADGG,51?
For technical support, including 74ABT162245ADGG,51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT162245ADGG,51 requirements.
6.How does Aetrix verify that 74ABT162245ADGG,51 is sourced from the original manufacturer or authorized distributors?
All 74ABT162245ADGG,51 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 74ABT162245ADGG,51 meets industry standards.
7.What is the process for return or replacement of 74ABT162245ADGG,51?
All 74ABT162245ADGG,51 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT162245ADGG,51, 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 74ABT162245ADGG,51 part is unused and in its original packaging.
Return procedure for 74ABT162245ADGG,51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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