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Nexperia USA Inc. 74ALVCH162245DGG,5
- Part No.:
- 74ALVCH162245DGG,5
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVCH162245DGG,5.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,466
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Product details
Overview
74ALVCH162245DGG,5 from Nexperia is a 16-bit CMOS bus transceiver with dual 8-bit direction control (1DIR/2DIR), dual active-low output enables (1OE/2OE), integrated 30 Ω termination resistors on all I/Os, bus hold on all data inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V and supports bidirectional data flow in high-speed digital buses such as memory interfaces and backplane interconnects.
For engineers reviewing the 74ALVCH162245DGG,5 datasheet, 74ALVCH162245DGG,5 pinout, 74ALVCH162245DGG,5 application, or 74ALVCH162245DGG,5 equivalent, key selection criteria include its 30 Ω on-die termination for impedance matching, bus hold functionality eliminating external pull-ups, IOFF-enabled safe hot-swap capability, and TSSOP48 package compatibility with dense PCB layouts.
Technical Context
This transceiver implements two independent 8-bit bidirectional data paths, each with dedicated direction (DIR) and output enable (OE) controls-enabling flexible partitioning into separate A↔B and C↔D channels. Its bus hold circuit maintains last-valid logic state at inputs during floating conditions, reducing system-level noise susceptibility.
The device integrates 30 Ω series termination resistors on every I/O pin, minimizing signal reflections without requiring external components. Its IOFF feature actively disables outputs and blocks reverse current when VCC is unpowered, supporting live insertion and partial system power-down scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Propagation Delay (tpd) | 1.0–4.9 ns - Supports >200 MHz data rates in point-to-point or stubbed bus topologies. |
| Integrated Termination | 30 Ω series resistor per I/O - Matches common PCB trace impedances (e.g., 50–60 Ω differential), reducing external component count by up to 32 resistors. |
| Bus Hold Current | ±75 μA to ±175 μA - Maintains stable input logic levels during signal glitches or open-circuit conditions without external biasing. |
| IOFF Protection | Active at VCC = 0 V - Prevents damaging backflow current from powered sections into unpowered IC sections during hot-plug or power sequencing. |
| Operating Temperature | −40 °C to +85 °C - Qualified for industrial-grade embedded systems including networking equipment and programmable logic controllers. |
| ESD Rating (HBM) | 2000 V - Meets JEDEC JS-001 Class 2, enabling robust handling in automated assembly and field-replaceable module environments. |
Pinout & Package
TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48 leads, body width 6.1 mm, 0.5 mm pitch, exposed 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; enables independent channel control. |
| 1OE, 2OE | Active-low output enable | Drives corresponding 8-bit outputs to high-impedance when HIGH; allows time-multiplexed bus sharing. |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | Primary bidirectional data terminals for first and second 8-bit banks; internally connected to bus hold and 30 Ω termination. |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | Secondary bidirectional data terminals; electrically isolated per bank but share same VCC/GND rails. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins minimize IR drop and supply noise across high-speed switching activity. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins reduce ground bounce and improve signal integrity in multi-bit switching events. |
Key Features
| Feature | Design Value |
|---|---|
| MULTIBYTE™ flow-through pinout | Minimizes PCB trace length and layer transitions between A/B ports-reducing skew and crosstalk in parallel bus routing. |
| Low-inductance VCC/GND pin distribution | Four VCC and eight GND pins suppress simultaneous switching noise (SSN), maintaining <100 mV supply rail deviation at 100 MHz toggle rate. |
| Direct TTL-level interface | Valid operation at VIH ≥ 2.0 V (VCC = 2.7–3.6 V) allows seamless connection to legacy 3.3 V TTL drivers without level-shifting circuitry. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B-ensures robustness against transient overvoltage and ESD-induced latch-up in noisy industrial environments. |
| Wide temperature range | Specified from −40 °C to +85 °C-supports deployment in uncontrolled ambient environments such as factory automation cabinets and outdoor telecom enclosures. |
Applications
| Memory Interface Buffering | Backplane Data Routing |
|---|---|
Use Scenario: Bidirectional data transfer between FPGA and DDR2 SDRAM with mismatched drive strengths and timing margins. IC Role / Device Role / Timing Role: Bus transceiver providing level translation, signal integrity enhancement via on-die 30 Ω termination, and bus hold to prevent floating address lines during refresh cycles. Use Value: Eliminates need for 32 discrete termination resistors and 16 pull-up resistors, reducing BOM cost by $0.18/unit and PCB area by 12 mm². |
Use Scenario: Hot-swappable line card interfacing with central switch fabric using parallel 16-bit control/data bus. IC Role / Device Role / Timing Role: Isolating powered and unpowered card sections using IOFF, while maintaining signal integrity during insertion/removal via integrated termination. Use Value: Enables zero-downtime maintenance without system reboot; IOFF prevents backfeed damage to main backplane controller during card replacement. |
| Industrial PLC I/O Expansion | Test Equipment Signal Conditioning |
Use Scenario: Extending microcontroller GPIO count to drive multiple isolated digital I/O modules over long PCB traces. IC Role / Device Role / Timing Role: Transceiver buffering signals between MCU and opto-isolated output banks, with bus hold preventing spurious toggles during firmware updates. Use Value: Bus hold eliminates need for external 10 kΩ pull-ups per line-reducing component count by 16 parts and improving reliability in vibration-prone cabinet installations. |
Use Scenario: Interfacing high-speed pattern generator outputs to DUT inputs with variable load capacitance and impedance mismatches. IC Role / Device Role / Timing Role: Impedance-matched driver/receiver with 30 Ω series termination and low propagation delay variation (<1.5 ns max skew across 16 bits). Use Value: Reduces signal overshoot/ringing by >60% compared to unterminated drivers, enabling clean eye diagrams at 150 Mbps without custom layout tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH162245GR | TI part with 2.5 V/3.3 V only supply range (2.3–3.6 V); no bus hold; higher ICC (1.5 mA typical vs. 0.2 μA) | Lacks bus hold and IOFF-requires external pull-ups and cannot support partial power-down | Select only if operating exclusively at 2.5 V/3.3 V and external termination/pull-ups are acceptable. |
| 74LVC162245APAG | IDT part with identical pinout and 1.65–3.6 V range; no integrated termination; bus hold optional (not enabled by default) | Requires 32 external 30 Ω resistors and 16 pull-ups to match 74ALVCH162245DGG,5 functionality | Choose only if lower unit cost justifies added BOM complexity and PCB area penalty. |
Compared with SN74ALVTH162245GR and 74LVC162245APAG, the 74ALVCH162245DGG,5 uniquely combines 30 Ω on-die termination, bus hold, and IOFF in a single TSSOP48 package-delivering lowest total system cost and highest integration for industrial and hot-swap applications.
Availability
74ALVCH162245DGG,5 is available at Aetrix Electronics and suitable for memory interface buffering, backplane data routing, and industrial PLC I/O expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 74ALVCH162245DGG,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.
The 74ALVCH series targets high-speed, low-power digital interfacing in space-constrained and thermally demanding environments-designed specifically for robust bidirectional bus communication with minimal external components.
FAQ
What is the purpose of the IOFF feature in the 74ALVCH162245DGG,5?
The IOFF feature disables all outputs and blocks reverse current flow when VCC is at 0 V or near-zero, protecting the device and connected circuitry during hot-swap events or partial power-down sequences. It meets JESD76 requirements and ensures no backfeed occurs from powered downstream logic into an unpowered transceiver section.
Can the 74ALVCH162245DGG,5 operate at 1.8 V supply voltage?
Yes-the device is fully specified from 1.2 V to 3.6 V, including 1.8 V operation. At VCC = 1.8 V, VIH is guaranteed ≥ 1.2 V and VIL ≤ 0.7 V, ensuring reliable interface with 1.8 V microcontrollers and FPGAs without level shifting.
How does the integrated 30 Ω termination resistor affect signal integrity?
The 30 Ω series termination reduces signal reflections on PCB traces with characteristic impedance near 50–60 Ω, suppressing ringing and overshoot. When used with controlled-impedance routing, it improves eye diagram opening by up to 40% at 150 Mbps compared to unterminated designs.
Is bus hold functionality enabled by default on all inputs?
Yes-bus hold is permanently enabled on all 16 data inputs (1A0–1A7, 2A0–2A7, 1B0–1B7, 2B0–2B7) without external configuration. It provides ±75 μA to ±175 μA holding current depending on VCC and input voltage, eliminating need for external pull-up/down resistors.
74ALVCH162245DGG,5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVCH
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVCH162245DGG,5 FAQ
1.How can I place an order for 74ALVCH162245DGG,5 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH162245DGG,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 74ALVCH162245DGG,5 reliable?
The price and inventory of 74ALVCH162245DGG,5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH162245DGG,5 is usually 5 days.
3.What payment methods are accepted for 74ALVCH162245DGG,5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH162245DGG,5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH162245DGG,5?
74ALVCH162245DGG,5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH162245DGG,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 74ALVCH162245DGG,5?
For technical support, including 74ALVCH162245DGG,5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH162245DGG,5 requirements.
6.How does Aetrix verify that 74ALVCH162245DGG,5 is sourced from the original manufacturer or authorized distributors?
All 74ALVCH162245DGG,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 74ALVCH162245DGG,5 meets industry standards.
7.What is the process for return or replacement of 74ALVCH162245DGG,5?
All 74ALVCH162245DGG,5 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH162245DGG,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 74ALVCH162245DGG,5 part is unused and in its original packaging.
Return procedure for 74ALVCH162245DGG,5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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