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Nexperia USA Inc. 74LVCH162245ADGG:1
- Part No.:
- 74LVCH162245ADGG:1
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVCH162245ADGG:1.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,907
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Product details
Overview
74LVCH162245ADGG:1 from Nexperia is a 16-bit dual-directional bus transceiver with integrated 30 Ω series termination resistors, 5 V-tolerant I/O, and bus-hold on all data inputs. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features independent 8-bit channel control via two direction (1DIR/2DIR) and two output-enable (1OE/2OE) pins. Used in high-speed parallel bus interfaces for industrial controllers and FPGA I/O expansion.
For engineers reviewing the 74LVCH162245ADGG:1 datasheet, 74LVCH162245ADGG:1 pinout, 74LVCH162245ADGG:1 application, or 74LVCH162245ADGG:1 equivalent, key selection criteria include its 30 Ω on-die termination for signal integrity, IOFF partial power-down capability, bus-hold functionality eliminating external pull-ups, and -40 °C to +125 °C temperature rating for rugged embedded deployment.
Technical Context
This device implements a dual 8-bit flow-through architecture with separate DIR/OE controls per byte lane, enabling flexible bidirectional data routing without internal latching. Its Schmitt-trigger inputs tolerate slow-rising signals, while the IOFF circuit actively disables outputs during power-down to prevent backflow current.
The 74LVCH162245A variant includes bus-hold circuitry on all 16 data I/Os (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7), sustaining logic states at VIH/VIL thresholds without external biasing. Termination resistors are placed in series with each output driver, reducing reflections on PCB traces up to 100 MHz operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains. |
| I/O Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V buses without level-shifting components. |
| Propagation Delay (tpd) | 1.0 ns to 8.5 ns - Supports high-speed parallel data transfer up to ~100 MHz with controlled timing margins. |
| Integrated Termination | 30 Ω series resistor per output - Reduces signal overshoot/ringing on FR-4 PCB traces, eliminating discrete termination parts. |
| Bus-Hold Current | ±10 μA to ±75 μA - Maintains stable logic state on unused or floating data lines, removing need for external pull-up/down resistors. |
| IOFF Leakage | ±10 μA max at VCC = 0 V - Prevents damaging back-current when one side of the bus is powered down while the other remains active. |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - Robust handling during board assembly and field service in industrial environments. |
Pinout & Package
TSSOP48 package (SOT362-1): 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm lead pitch, exposed thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Determines data flow direction per 8-bit bank: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE | Output enable (active LOW) | Asserting LOW enables corresponding 8-bit outputs; HIGH places them in high-impedance state. |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional data bus segment connected to controller-side interface. |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | First and second 8-bit bidirectional data bus segment connected to peripheral/memory side. |
| VCC (pins 7, 18, 31, 42) | Power supply | Four distributed supply pins minimize IR drop and improve noise immunity across wide bus. |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight ground pins reduce ground bounce and support clean switching of 16-bit parallel signals. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit control | Enables simultaneous or staggered data transfers across two isolated byte lanes using separate DIR/OE signals. |
| On-die 30 Ω series termination | Eliminates 16 discrete SMT resistors, saving PCB area and improving impedance matching on dense interconnects. |
| Bus-hold on all data I/Os | Prevents undefined logic states on unterminated or lightly loaded data lines, simplifying system bring-up and debug. |
| IOFF partial power-down | Allows hot-swap or power-gating of one bus side while maintaining isolation and preventing latch-up. |
| Schmitt-trigger inputs | Accepts slow-edge or noisy signals (e.g., from mechanical switches or long cables) without metastability or false triggering. |
Applications
| Industrial PLC Backplane Interface | FPGA-to-ASIC Parallel Bridge |
|---|---|
Use Scenario: Connecting a 3.3 V FPGA I/O bank to legacy 5 V industrial I/O modules over a 16-bit parallel backplane. IC Role / Device Role / Timing Role: Bidirectional voltage-translating transceiver with on-die termination, managing data flow direction and bus contention under real-time scan-cycle constraints. Use Value: Eliminates external level shifters and termination networks, reduces BOM count by ≥18 components, and ensures signal integrity at 50 MHz sustained throughput. | Use Scenario: Interfacing a Xilinx Artix-7 FPGA to a custom ASIC with mismatched I/O voltages and no internal termination. IC Role / Device Role / Timing Role: High-speed parallel bus buffer with independent byte-lane control, used to isolate and synchronize data between clock domains. Use Value: Provides deterministic 1.0 ns min propagation delay and <8.5 ns max skew across all 16 bits, meeting setup/hold timing closure requirements. |
| Automated Test Equipment (ATE) Fixture | Medical Imaging Data Acquisition Board |
Use Scenario: Signal conditioning and isolation between a 1.8 V test controller and 5 V DUT interface connectors in modular ATE hardware. IC Role / Device Role / Timing Role: Robust bidirectional translator with bus-hold, ensuring stable pin states during test sequence transitions and power sequencing events. Use Value: Prevents floating inputs during test mode changes, avoids spurious writes to DUT registers, and supports -40 °C to +125 °C ambient operation in rack-mounted enclosures. | Use Scenario: Buffering parallel pixel data streams from analog front-end ADCs to a 3.3 V image processing SoC in portable ultrasound equipment. IC Role / Device Role / Timing Role: Low-noise, low-power transceiver with distributed power/ground pins, minimizing crosstalk between adjacent data lines in high-resolution imaging paths. Use Value: Delivers <0.55 V VOL at 12 mA drive strength and 10 pF CI/O capacitance, preserving SNR in 14-bit pixel data transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC162245ADGGR | No bus-hold; IOFF supported; same 30 Ω termination and 5 V tolerance. | Requires external pull-up/down resistors on unused data lines; suitable where bus-hold is unnecessary. | Select when cost sensitivity outweighs need for bus-hold, or when legacy design uses LVC (not LVCH) variant. |
| 74ALVC162245PAG | Higher drive strength (24 mA), wider VCC range (1.65 V–3.6 V), no bus-hold or IOFF. | Lacks partial power-down and bus-hold; less suitable for hot-swap or floating-bus scenarios. | Choose for higher-speed or higher-current applications where robustness to unpowered states is not required. |
Compared with SN74LVC162245ADGGR and 74ALVC162245PAG, the 74LVCH162245ADGG:1 uniquely combines bus-hold, IOFF, and 30 Ω termination in a single TSSOP48 package-enabling simplified, reliable, and space-efficient 16-bit bus interfacing in thermally demanding or power-managed systems.
Availability
74LVCH162245ADGG:1 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-to-ASIC bridges, automated test equipment fixtures, and medical imaging data acquisition boards requiring stable component supply across extended temperature ranges.
Supply support for 74LVCH162245ADGG:1 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, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.
The 74LVCH162245A belongs to Nexperia's advanced LVC/LVCH logic family, designed specifically for high-speed, low-power, mixed-voltage parallel bus interfacing in space-constrained and thermally aggressive embedded systems.
FAQ
What is the function of the bus-hold circuit in the 74LVCH162245ADGG:1?
The bus-hold circuit actively maintains the last valid logic state on each data I/O pin (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) when the input is floating or weakly driven. It sources or sinks ±10 μA to ±75 μA depending on voltage and temperature, eliminating the need for external pull-up or pull-down resistors and preventing undefined states during system initialization or fault conditions.
Can the 74LVCH162245ADGG:1 operate with a 1.2 V supply and still interface with 5 V signals?
Yes. The device supports VCC from 1.2 V to 3.6 V and tolerates input/output voltages up to 5.5 V regardless of supply level. This allows direct connection to 5 V buses while powered from 1.2 V, 1.8 V, or 3.3 V rails-enabling seamless voltage translation without external level shifters or additional power domains.
How does the IOFF feature protect the device during partial power-down?
When VCC = 0 V, the IOFF circuit disables all outputs and presents high-impedance I/O states, limiting power-off leakage current to ±10 μA maximum. This prevents reverse current flow from live 5 V or 3.3 V buses into the unpowered device, avoiding latch-up, overheating, or damage to upstream drivers during hot-swap or power sequencing events.
What is the significance of the 30 Ω series termination resistors?
The integrated 30 Ω resistors are placed in series with each output driver to match typical PCB trace impedances (50–75 Ω) in source-series termination configurations. This dampens signal reflections, reduces overshoot/undershoot, and improves eye diagram integrity-especially critical for clean 50+ MHz parallel bus operation without adding 16 discrete SMT resistors.
74LVCH162245ADGG:1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74LVCH162245ADGG:1 FAQ
1.How can I place an order for 74LVCH162245ADGG:1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH162245ADGG:1 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 74LVCH162245ADGG:1 reliable?
The price and inventory of 74LVCH162245ADGG:1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH162245ADGG:1 is usually 5 days.
3.What payment methods are accepted for 74LVCH162245ADGG:1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH162245ADGG:1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH162245ADGG:1?
74LVCH162245ADGG:1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH162245ADGG:1 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 74LVCH162245ADGG:1?
For technical support, including 74LVCH162245ADGG:1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH162245ADGG:1 requirements.
6.How does Aetrix verify that 74LVCH162245ADGG:1 is sourced from the original manufacturer or authorized distributors?
All 74LVCH162245ADGG:1 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 74LVCH162245ADGG:1 meets industry standards.
7.What is the process for return or replacement of 74LVCH162245ADGG:1?
All 74LVCH162245ADGG:1 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH162245ADGG:1, 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 74LVCH162245ADGG:1 part is unused and in its original packaging.
Return procedure for 74LVCH162245ADGG:1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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