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Nexperia USA Inc. 74ABTH162245ADGG,5
- Part No.:
- 74ABTH162245ADGG,5
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABTH162245ADGG,5.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,565
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Product details
Overview
74ABTH162245ADGG,5 from Nexperia is a 16-bit bidirectional bus transceiver with integrated 30 Ω series termination resistors, dual 8-bit direction control (1DIR/2DIR), independent output enables (1OE/2OE), and bus-hold inputs. It operates from 4.5 V to 5.5 V, delivers ±32 mA/±12 mA drive capability, and supports partial power-down via IOFF. It is used in high-speed backplane and board-level data buses requiring impedance-matched signal integrity.
For engineers reviewing the 74ABTH162245ADGG,5 datasheet, 74ABTH162245ADGG,5 pinout, 74ABTH162245ADGG,5 application, or 74ABTH162245ADGG,5 equivalent, this device is selected for TTL-compatible 16-bit bidirectional data routing with on-die termination and bus-hold stability-critical for hot-swap-capable industrial control backplanes and memory expansion interfaces.
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 bus partitioning. Its BiCMOS architecture delivers sub-5 ns propagation delays (tPLH/tPHL ≤ 3.5 ns) and robust 3-state switching (tPZH/tPLZ ≤ 5.0 ns) across -40 °C to +85 °C.
The integrated 30 Ω series termination resistors are placed at each output terminal to suppress reflections on PCB traces up to 100 MHz, eliminating external discrete resistors. Bus-hold circuitry maintains valid logic states on unused A/B inputs without external pull-ups, reducing BOM count and layout complexity.
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 - compatible with standard 5 V TTL systems |
| Output drive | +12 mA / −32 mA - sufficient to drive 50 Ω transmission lines and multiple TTL loads |
| Propagation delay | ≤ 3.5 ns (max, −40 °C to +85 °C) - enables >100 MHz data rates in point-to-point links |
| Termination | Integrated 30 Ω series resistors per output - eliminates need for 32 external SMD resistors |
| IOFF support | Active during partial power-down - blocks backflow current when VCC = 0 V |
| Bus-hold | Enabled on all data inputs - holds floating inputs at last valid logic state without external bias |
Pinout & Package
TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48 leads, body width 6.1 mm, lead pitch 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR (pins 1, 24) | Direction control input | Determines data flow direction per 8-bit channel: HIGH = B→A, LOW = A→B |
| 1OE, 2OE (pins 48, 25) | Output enable input | Active LOW: disables corresponding 8-bit outputs into high-impedance state |
| 1A0–1A7 (pins 47, 46, 44, 43, 41, 40, 38, 37) 2A0–2A7 (pins 36, 35, 33, 32, 30, 29, 27, 26) |
Data I/O port A/B | Bidirectional data terminals; internally connected to bus-hold and 30 Ω series resistor |
| 1B0–1B7 (pins 2, 3, 5, 6, 8, 9, 11, 12) 2B0–2B7 (pins 13, 14, 16, 17, 19, 20, 22, 23) |
Data I/O port B/A | Complementary I/O pair for each A-side port; same electrical characteristics and termination |
| VCC (pins 7, 18, 31, 42) | Power supply | Four 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 independent 8-bit control | Separate 1DIR/1OE and 2DIR/2OE allow asymmetric bus arbitration and selective channel isolation |
| Integrated 30 Ω series termination | Reduces signal overshoot/ringing on 50–75 Ω PCB traces without external components or layout tuning |
| Bus-hold inputs | Maintains valid logic levels on unconnected or unterminated A/B inputs - prevents metastability in sparse bus topologies |
| IOFF partial power-down | Enables safe insertion/removal in live backplanes by disabling outputs and blocking reverse current at VCC = 0 V |
| TTL-level compatibility | Accepts 0.8 V/2.0 V VIH/VIL thresholds and drives VOH ≥ 2.4 V @ −32 mA - interoperable with legacy 5 V logic families |
Applications
| Industrial Backplane Interface | Memory Expansion Subsystem |
|---|---|
|
Use Scenario: Bidirectional data transfer between CPU module and peripheral I/O carrier board in modular PLC chassis. IC Role / Device Role / Timing Role: 16-bit transceiver buffering address/data bus with on-die termination to maintain signal integrity over 15 cm backplane traces. Use Value: Eliminates 32 external termination resistors and ensures stable bus hold during hot-swap events without pull-up networks. |
Use Scenario: Interfacing FPGA-based controller to parallel SRAM or Flash memory bank with shared address/data bus. IC Role / Device Role / Timing Role: Direction-controlled bus isolator enabling time-multiplexed read/write cycles with sub-5 ns propagation latency. Use Value: Delivers ±32 mA drive to meet memory access timing margins while suppressing reflections on stub-loaded memory bus traces. |
| Test Equipment Data Acquisition | Legacy System Bus Bridge |
|
Use Scenario: High-speed digital pattern generator capturing parallel test vectors from DUT under 100 MHz clock domain. IC Role / Device Role / Timing Role: Transient-suppressed bus interface between FPGA capture engine and 16-bit DUT I/O header. Use Value: Integrated 30 Ω resistors reduce setup/hold violations caused by trace mismatch, improving vector capture fidelity. |
Use Scenario: Bridging ISA or PCI-X legacy bus to modern microcontroller subsystem in retro-computing hardware upgrade. IC Role / Device Role / Timing Role: Level-translating, direction-managed bus coupler supporting asynchronous handshaking protocols. Use Value: Bus-hold inputs prevent floating states during protocol idle periods; IOFF enables safe reset sequencing across mixed-power domains. |
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 |
|---|---|---|---|
| 74ABT162245ADGG,5 | No bus-hold circuitry; lower ICC (1.0 μA vs. 100 μA) in 3-state mode | Suitable where all inputs are actively driven; requires external pull-ups if inputs float | Select when minimizing quiescent current is critical and bus topology guarantees driven inputs |
| SN74LVC162245DGGR | 3.3 V only (1.65–3.6 V); no integrated termination; ±24 mA drive | Targets low-voltage mixed-signal systems; requires external 33 Ω resistors for similar termination | Select for 3.3 V domains with tighter power budgets; not drop-in compatible due to voltage and termination differences |
Compared with 74ABTH162245ADGG,5, the 74ABT162245ADGG,5 reduces static current but forfeits bus-hold protection, while SN74LVC162245DGGR shifts to 3.3 V operation and removes on-die termination-requiring redesign of termination strategy and level-shifting.
Availability
74ABTH162245ADGG,5 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory expansion subsystems, and test equipment data acquisition requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature.
Supply support for 74ABTH162245ADGG,5 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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
This device belongs to the ABTH high-speed BiCMOS logic family, designed specifically for noise-immune, high-drive 5 V bus interfacing in mission-critical industrial and instrumentation systems.
FAQ
Does 74ABTH162245ADGG,5 support hot-swap operation?
Yes. Its IOFF circuitry actively disables outputs and blocks reverse current when VCC is removed or ramping, enabling safe insertion and removal in live backplane systems. This behavior is verified per JESD78 Class II Level B latch-up immunity and specified across the full −40 °C to +85 °C operating range.
What is the function of the 30 Ω series termination resistors?
Each output integrates a 30 Ω series resistor to match typical PCB trace impedances (50–75 Ω) and dampen signal reflections. This reduces overshoot, undershoot, and ringing on point-to-point or short-stub bus segments, improving setup/hold timing margins without external components.
How does bus-hold functionality affect system design?
Bus-hold circuitry maintains the last valid logic state on any floating A/B input pin, eliminating the need for external pull-up or pull-down resistors. This simplifies BOM, reduces board space, and prevents undefined states during power-up, reset, or disconnected bus segments in modular systems.
Can 74ABTH162245ADGG,5 be used with 3.3 V logic interfaces?
No. It is strictly a 4.5 V to 5.5 V device with TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and output drive optimized for 5 V rails. Direct connection to 3.3 V logic risks violating absolute maximum input voltage (−1.2 V to +7.0 V) and may cause excessive current or timing violations without level-shifting.
74ABTH162245ADGG,5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABTH
- 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
74ABTH162245ADGG,5 FAQ
1.How can I place an order for 74ABTH162245ADGG,5 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABTH162245ADGG,5 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 74ABTH162245ADGG,5 reliable?
The price and inventory of 74ABTH162245ADGG,5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABTH162245ADGG,5 is usually 5 days.
3.What payment methods are accepted for 74ABTH162245ADGG,5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABTH162245ADGG,5 transactions.
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4.How is shipping managed for 74ABTH162245ADGG,5?
74ABTH162245ADGG,5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABTH162245ADGG,5 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 74ABTH162245ADGG,5?
For technical support, including 74ABTH162245ADGG,5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABTH162245ADGG,5 requirements.
6.How does Aetrix verify that 74ABTH162245ADGG,5 is sourced from the original manufacturer or authorized distributors?
All 74ABTH162245ADGG,5 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 74ABTH162245ADGG,5 meets industry standards.
7.What is the process for return or replacement of 74ABTH162245ADGG,5?
All 74ABTH162245ADGG,5 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABTH162245ADGG,5, 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 74ABTH162245ADGG,5 part is unused and in its original packaging.
Return procedure for 74ABTH162245ADGG,5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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