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Nexperia USA Inc. 74ABT162245ADGG:11
- Part No.:
- 74ABT162245ADGG:11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT162245ADGG:11.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,968
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Product details
Overview
74ABT162245ADGG:11 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 IOFF partial power-down protection. It operates from 4.5 V to 5.5 V, delivers ±32 mA/±12 mA drive strength, and supports industrial temperature range (−40 °C to +85 °C). It is used in high-speed parallel bus interfaces between microcontrollers and peripheral ASICs or FPGAs.
For engineers reviewing the 74ABT162245ADGG:11 datasheet, 74ABT162245ADGG:11 pinout, 74ABT162245ADGG:11 application, or 74ABT162245ADGG:11 equivalent, this page provides verified functional context, TSSOP48 package mapping, real-world timing behavior (tPLH ≤ 3.5 ns), termination-aware signal integrity guidance, and validated alternatives for bus interface redesign.
Technical Context
This device implements two independent 8-bit transceiver blocks sharing no internal logic coupling-each with dedicated DIR and OE inputs enabling asymmetric data flow control. Its BiCMOS architecture delivers TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and rail-to-rail output swing under load.
The integrated 30 Ω series resistors are placed on all 16 A- and B-side I/O pins, reducing transmission line reflections without external components. The IOFF circuit actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA and enabling hot-insertion in partially powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus width | 16-bit bidirectional (configurable as two independent 8-bit paths) |
| Supply voltage | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL and mixed-voltage backplanes |
| Output drive | +12 mA / −32 mA - sustains clean logic levels driving 50 pF loads at 5 V |
| Propagation delay | tPLH/tPHL ≤ 3.5 ns @ 5 V - supports >200 MHz bus toggle rates |
| Termination | 30 Ω series resistor per I/O - matches typical PCB trace impedance, eliminating discrete resistors |
| IOFF leakage | ±100 μA @ VCC = 0 V - prevents damaging backfeed during partial power-down sequences |
| Operating temp | −40 °C to +85 °C - qualified for industrial control and telecom infrastructure |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, exposed thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH selects data flow: A→B when HIGH, B→A when LOW |
| 1OE, 2OE | Output enable input | Active-LOW enables corresponding 8-bit port; HIGH forces 3-state (Z) |
| 1A0–1A7, 2A0–2A7 | Port A I/O | First and second 8-bit bidirectional bus segment; connected to controller side |
| 1B0–1B7, 2B0–2B7 | Port B I/O | First and second 8-bit bidirectional bus segment; connected to peripheral side |
| 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 | 1DIR/1OE and 2DIR/2OE allow asymmetric read/write timing on separate memory banks or peripherals |
| Integrated 30 Ω termination | Eliminates 32 external series resistors, reducing BOM count and PCB area while improving signal fidelity |
| IOFF partial power-down | Enables safe insertion into live backplanes by blocking reverse current when VCC is off |
| BiCMOS output stage | Combines bipolar speed and CMOS low static power: ICC < 0.7 mA in 3-state mode |
| TTL-level compatibility | Accepts standard 5 V TTL inputs (VIH ≥ 2.0 V) and drives TTL loads directly without level shifters |
Applications
| Memory Interfacing | FPGA-to-ASIC Data Bridge |
|---|---|
|
Use Scenario: Bidirectional data transfer between a microcontroller and dual-port SRAM with separate address/data buses. IC Role / Device Role / Timing Role: Transceives 16-bit data while isolating controller and memory domains; direction toggled per read/write cycle via DIR signals. Use Value: Integrated 30 Ω resistors suppress ringing on 10+ cm traces, maintaining setup/hold margins at 20 ns cycle times. |
Use Scenario: Synchronizing burst-mode data transfers between Xilinx Artix FPGA and custom ASIC over parallel interface. IC Role / Device Role / Timing Role: Buffers and terminates both A-side (FPGA) and B-side (ASIC) buses; OE signals gated by FPGA state machine. Use Value: Dual OE control allows per-bank isolation during partial reconfiguration, preventing bus contention during logic updates. |
| Industrial Backplane Interface | Legacy Peripheral Expansion |
|
Use Scenario: Connecting modular I/O cards to a central PLC CPU over 5 V parallel bus with daisy-chained slots. IC Role / Device Role / Timing Role: Provides hot-swap-safe bus isolation; IOFF activates automatically when card power fails. Use Value: ±100 μA IOFF leakage prevents backfeeding into failed modules, avoiding system-wide reset cascades. |
Use Scenario: Adding ISA-style parallel expansion to modern ARM-based HMI controllers using legacy printers or scanners. IC Role / Device Role / Timing Role: Level-translates and terminates 5 V parallel handshaking (STB, ACK, BUSY) and data lines. Use Value: TTL-compatible inputs accept legacy peripheral signaling without pull-up networks; 32 mA sink capability drives LED status indicators directly. |
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 |
|---|---|---|---|
| 74LVT162245DGG | Lower VCC range (2.7–3.6 V); no integrated termination; LVT logic family | Requires external 33 Ω resistors; suited for 3.3 V systems only | Select when migrating to 3.3 V operation and external termination is acceptable |
| SN74ALVTH162245GR | Texas Instruments part; 3.3 V supply; includes bus-hold on inputs; no integrated termination | Eliminates need for external pull-ups on unused inputs but adds 100 μA per input hold current | Prefer where input floating is a risk and board space permits discrete termination |
Compared with 74ABT162245ADGG:11, the LVT variant lacks termination and voltage compatibility, while the ALVTH part trades termination for bus-hold-neither replicates the exact combination of 5 V operation, integrated 30 Ω resistors, and IOFF found in the Nexperia device.
Availability
74ABT162245ADGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfacing, FPGA-ASIC bridging, memory subsystem design, and legacy peripheral expansion requiring stable component supply across multi-year production cycles.
Supply support for 74ABT162245ADGG:11 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.
The 74ABT series targets high-speed, robust 5 V digital interfacing-designed specifically for noise-sensitive parallel bus applications demanding fast propagation, strong drive, and reliable power-down behavior.
FAQ
What is the function of the IOFF circuit in the 74ABT162245ADGG:11?
The IOFF circuit disables all outputs when VCC drops to 0 V, limiting backflow current to ±100 μA. This prevents damage to powered sections of the system during hot-swap or partial power-down events, making it suitable for modular backplane architectures where cards may be inserted or removed while the main system remains active.
Can the 74ABT162245ADGG:11 be used with 3.3 V logic levels?
No-it is specified only for 4.5 V to 5.5 V operation and requires TTL-compatible input thresholds (VIH ≥ 2.0 V). Driving its inputs directly from 3.3 V logic risks marginal VIH margin and undefined switching behavior; a level translator or 3.3 V–tolerant variant like 74LVT162245DGG is required for true 3.3 V interfacing.
How does the integrated 30 Ω termination affect PCB layout?
The 30 Ω resistors are placed internally in series with each I/O pin, so external series resistors are unnecessary. Layout should maintain controlled 50 Ω trace impedance from transceiver to destination, with stub lengths minimized (< 5 mm) to avoid violating the 30 Ω–50 Ω mismatch tolerance that ensures < 10% reflection amplitude.
Is the 74ABT162245ADGG:11 pin-compatible with the 74ABTH162245ADGG variant?
Yes-both share identical TSSOP48 pinout and electrical specifications except for bus-hold circuitry on inputs. The ABTH version adds ~50–75 μA per input hold current and eliminates need for external pull-ups on unused inputs, but introduces slight input capacitance increase (CI ≈ 5 pF vs. 3 pF).
74ABT162245ADGG:11 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:
- Active
- 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:11 FAQ
1.How can I place an order for 74ABT162245ADGG:11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT162245ADGG:11 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:11 reliable?
The price and inventory of 74ABT162245ADGG:11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT162245ADGG:11 is usually 5 days.
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Once your 74ABT162245ADGG:11 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:11?
For technical support, including 74ABT162245ADGG:11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT162245ADGG:11 requirements.
6.How does Aetrix verify that 74ABT162245ADGG:11 is sourced from the original manufacturer or authorized distributors?
All 74ABT162245ADGG:11 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:11 meets industry standards.
7.What is the process for return or replacement of 74ABT162245ADGG:11?
All 74ABT162245ADGG:11 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT162245ADGG:11, 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:11 part is unused and in its original packaging.
Return procedure for 74ABT162245ADGG:11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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