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Nexperia USA Inc. 74ALVCH162245DGG,1
- Part No.:
- 74ALVCH162245DGG,1
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVCH162245DGG,1.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,199
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Product details
Overview
74ALVCH162245DGG,1 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,1 datasheet, 74ALVCH162245DGG,1 pinout, 74ALVCH162245DGG,1 application, or 74ALVCH162245DGG,1 equivalent, key selection criteria include its 30 Ω on-die termination for signal integrity, bus hold functionality eliminating external pull-ups, IOFF-enabled 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 segmentation of 16-bit buses into two isolated 8-bit domains. Its bus hold circuit maintains valid logic states on floating inputs without external biasing, reducing system-level component count.
The integrated 30 Ω series termination resistors are placed directly at each I/O pin, minimizing stub length and improving impedance matching for high-speed signals up to 200 MHz. The IOFF feature actively disables outputs and blocks reverse current when VCC = 0 V, supporting live insertion and partial system power-down scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic families without level shifters. |
| Propagation Delay | 1.0–4.9 ns - Supports >200 MHz data rates in point-to-point or short-bus topologies. |
| Termination Resistance | 30 Ω series per I/O - Matches common PCB trace impedances (50–75 Ω) in source-series configuration for reduced reflections. |
| Bus Hold Current | ±75 μA to ±175 μA - Maintains stable HIGH/LOW state on un-driven inputs without external resistors. |
| IOFF Leakage | <10 μA at VCC = 0 V - Prevents damaging backflow current during hot-swap or partial power-down sequences. |
| Input Capacitance | 4.0 pF - Minimizes loading on driving sources and preserves signal edge rate. |
| Operating Temperature | −40 °C to +85 °C - Qualified for industrial-grade embedded systems and communications equipment. |
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 (Pins 1, 24) | Direction control input | Active-HIGH selects A→B (1DIR) or B→A (2DIR) data flow per 8-bit port; enables true bidirectional operation. |
| 1OE, 2OE (Pins 48, 25) | Output enable (active-LOW) | Independent 3-state control for each 8-bit port; allows dynamic bus arbitration and multi-drop sharing. |
| 1A0–1A7, 2A0–2A7 (Pins 47,46,44,43,41,40,38,37 / 36,35,33,32,30,29,27,26) | Data I/O port A | Primary bidirectional data path; connects to microcontroller or ASIC data bus; includes bus hold and 30 Ω termination. |
| 1B0–1B7, 2B0–2B7 (Pins 2,3,5,6,8,9,11,12 / 13,14,16,17,19,20,22,23) | Data I/O port B | Secondary bidirectional data path; used for memory, peripheral, or inter-ASIC communication; identical electrical specs to port A. |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed VCC pins minimize IR drop and supply noise; supports low-noise operation in high-speed switching. |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-inductance return paths, reducing ground bounce in multi-bit switching events. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 8-bit flow-through architecture | Enables independent control of two 8-bit segments-ideal for split-data-path applications like DDR address/command routing. |
| Integrated 30 Ω series termination | Eliminates need for 16 discrete 30 Ω resistors, saving board space and improving signal integrity on high-speed traces. |
| Bus hold on all 32 data I/Os | Prevents floating inputs from drifting to indeterminate states, removing requirement for 32 external pull-up/down resistors. |
| IOFF partial power-down support | Allows safe insertion/removal while other system rails remain active-critical for modular backplanes and hot-pluggable modules. |
| MULTIBYTE™ pinout | Standardized pin arrangement simplifies PCB layout reuse across ALVC/ALVCH family members and reduces design iteration time. |
Applications
| Memory Interface Bus | Industrial Backplane Interconnect |
|---|---|
|
Use Scenario: Bidirectional data transfer between FPGA and parallel NOR flash memory with shared address/data bus. IC Role / Device Role / Timing Role: Level-shifting, bus isolation, and signal integrity enhancement via on-die 30 Ω termination and bus hold. Use Value: Eliminates 32 external termination resistors and 32 pull-ups, reducing BOM cost by ~$0.18/unit and improving timing margin by 120 ps. |
Use Scenario: Hot-swappable module communication in programmable logic controller (PLC) backplane with mixed-voltage subsystems. IC Role / Device Role / Timing Role: Voltage-agile bus transceiver enabling 1.8 V/3.3 V domain bridging with IOFF-enabled safe insertion. Use Value: Enables zero-power-state isolation during card replacement, preventing bus contention and system reset events. |
| High-Density FPGA I/O Expansion | Automated Test Equipment (ATE) Signal Routing |
|
Use Scenario: Expanding FPGA GPIO count to drive multiple 8-bit peripherals (ADCs, DACs, sensors) using shared bus architecture. IC Role / Device Role / Timing Role: Dual-port transceiver providing independent enable/control for two peripheral groups under single FPGA control. Use Value: Reduces FPGA pin count usage by 50% versus discrete buffers; maintains <4.9 ns propagation delay across full voltage range. |
Use Scenario: Reconfigurable signal path routing between DUT interface and test instrumentation in ATE rack systems. IC Role / Device Role / Timing Role: Low-skew, 3-state-capable bus switch supporting fast pattern switching and channel isolation. Use Value: Achieves sub-5 ns enable/disable timing and <10 μA off-state leakage-critical for leakage-sensitive parametric testing. |
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 |
|---|---|---|---|
| SN74ALVCH162245DGGR | TSSOP48 package, same pinout and electrical specs; TI version with identical 30 Ω termination and bus hold. | No functional difference; validated for same industrial temperature range and voltage ranges. | Select for TI-design ecosystems or dual-sourcing requirements; no layout or firmware changes needed. |
| 74LVC162245ADGG,1 | LVC variant lacks integrated 30 Ω termination and bus hold; requires external resistors and pull-ups. | Suitable only where board space permits external components and system design tolerates floating inputs. | Choose only if cost sensitivity outweighs signal integrity and BOM simplification benefits of ALVCH version. |
Compared with SN74ALVCH162245DGGR, the 74ALVCH162245DGG,1 offers identical performance and drop-in compatibility; versus 74LVC162245ADGG,1, it delivers superior signal integrity and reduced component count via integrated termination and bus hold-justifying its use in high-reliability, space-constrained designs.
Availability
74ALVCH162245DGG,1 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-based test instrumentation, and memory subsystems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for 74ALVCH162245DGG,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for industrial, automotive, and consumer markets.
The 74ALVCH162245 belongs to Nexperia's advanced ALVCH logic family, engineered for low-voltage, high-speed bidirectional bus interfacing in space-constrained and thermally demanding environments.
FAQ
What is the purpose of the IOFF feature in the 74ALVCH162245DGG,1?
The IOFF (power-off protection) circuit disables all outputs and blocks reverse current flow when VCC is at 0 V, enabling safe hot insertion or removal in live backplane systems. Measured IOFF leakage is <10 μA across −40 °C to +85 °C, ensuring no bus contention or damage to powered-down sections.
Can the 74ALVCH162245DGG,1 be used with 1.8 V and 3.3 V logic simultaneously?
Yes-the device operates from 1.2 V to 3.6 V and features TTL-compatible input thresholds (VIH = 2.0 V min at VCC = 3.3 V; VIL = 0.8 V max), allowing direct connection between 1.8 V drivers and 3.3 V receivers without level shifters. Input/output voltage ratings extend to VCC + 0.5 V, supporting mixed-rail robustness.
How does the integrated 30 Ω termination resistor improve signal integrity?
Each I/O pin integrates a 30 Ω series resistor placed at the die bond pad, minimizing stub inductance and enabling precise source-series termination for 50–75 Ω PCB traces. This reduces overshoot, undershoot, and ringing-verified by <4.9 ns propagation delay and <2.5 ns rise/fall times at 3.3 V with 30 pF load.
Is bus hold functionality enabled by default, and does it affect power consumption?
Bus hold is always active on all 32 data I/Os with no enable/disable control; it draws ≤150 μA per pin at VI = 0.8 V (HIGH hold) or VI = 2.0 V (LOW hold). Total additional supply current ΔICC is ≤750 μA-negligible versus typical ICC of 40 μA-and eliminates need for 32 external pull resistors consuming ~1.2 mA collectively.
74ALVCH162245DGG,1 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,1 FAQ
1.How can I place an order for 74ALVCH162245DGG,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH162245DGG,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 74ALVCH162245DGG,1 reliable?
The price and inventory of 74ALVCH162245DGG,1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH162245DGG,1 is usually 5 days.
3.What payment methods are accepted for 74ALVCH162245DGG,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH162245DGG,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH162245DGG,1?
74ALVCH162245DGG,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH162245DGG,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 74ALVCH162245DGG,1?
For technical support, including 74ALVCH162245DGG,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH162245DGG,1 requirements.
6.How does Aetrix verify that 74ALVCH162245DGG,1 is sourced from the original manufacturer or authorized distributors?
All 74ALVCH162245DGG,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 74ALVCH162245DGG,1 meets industry standards.
7.What is the process for return or replacement of 74ALVCH162245DGG,1?
All 74ALVCH162245DGG,1 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH162245DGG,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 74ALVCH162245DGG,1 part is unused and in its original packaging.
Return procedure for 74ALVCH162245DGG,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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