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Nexperia USA Inc. 74LVCH162245ADL:11
- Part No.:
- 74LVCH162245ADL:11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74LVCH162245ADL:11.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,017
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Product details
Overview
74LVCH162245ADL:11 from Nexperia is a 16-bit dual 8-bit bus transceiver with integrated 30 Ω series termination resistors, 3-state outputs, dual direction control (1DIR/2DIR), and dual output enables (1OE/2OE). It operates from 1.2 V to 3.6 V, supports 5 V-tolerant I/O, and features bus hold on all data inputs - eliminating external pull-ups. It is used in high-speed parallel bus interfaces between mixed-voltage domains (e.g., 3.3 V SoC to 5 V peripheral).
For engineers reviewing the 74LVCH162245ADL:11 datasheet, 74LVCH162245ADL:11 pinout, 74LVCH162245ADL:11 application, or 74LVCH162245ADL:11 equivalent, key selection criteria include bidirectional voltage translation capability, IOFF partial power-down support, Schmitt-trigger input noise immunity, and TSSOP48 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 8-bit transceiver channels, each with dedicated DIR and OE controls, enabling flexible half-duplex or full-duplex data flow management. Its IOFF circuitry actively disables outputs during power-down to prevent backflow current, satisfying JEDEC JESD78 requirements for partial power-down operation.
Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at VCC = 3.3 V), tolerating slow-rising signals common in legacy bus systems. Bus hold functionality maintains valid logic states on unused data inputs without external biasing - a feature exclusive to the LVCH variant and confirmed for pins 1A0–1A7, 1B0–1B7, 2A0–2A7, and 2B0–2B7.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - enables direct interface with modern low-voltage logic while maintaining backward compatibility with 3.3 V systems. |
| I/O Voltage Tolerance | Up to 5.5 V - allows safe connection to 5 V buses without level-shifting components. |
| Propagation Delay | 1.0 ns to 8.5 ns (VCC = 1.2 V to 3.6 V) - supports >100 MHz bus clocking in typical configurations. |
| Integrated Termination | 30 Ω series resistors per I/O - reduces signal reflections on stub-loaded parallel buses without discrete resistors. |
| Bus Hold Current | ±10 μA to ±75 μA (VCC-dependent) - actively sustains input state with <100 μA quiescent draw, replacing 10 kΩ pull-up/downs. |
| IOFF Leakage | ±10 μA max at VCC = 0 V - ensures <100 μA backfeed current when powered off, protecting upstream drivers. |
| ESD Rating | HBM >2000 V, CDM >1000 V - meets industrial-grade robustness requirements per JS-001/JS-002. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, exposed pad not present. Pin 1 index marked by notch or dot; pin 1 located at top-left corner when marking side faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH logic selects data flow direction per 8-bit channel (A→B or B→A); no internal pull-up. |
| 1OE, 2OE | Output enable input | Active-LOW control - drives corresponding 8-bit port into high-impedance state when HIGH. |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional data terminals; bus hold enabled on all. |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | Complementary 8-bit bidirectional data terminals; functionally identical to port A. |
| 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 all 16 bits simultaneously. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit channels | Enables simultaneous or staggered control of two memory/peripheral buses without inter-channel crosstalk. |
| Integrated 30 Ω series termination | Eliminates need for 32 discrete SMD resistors on dense PCBs, reducing BOM count and layout area. |
| Bus hold on all data inputs | Maintains last-valid logic state on floating inputs - removes requirement for 16 external pull-up/down resistors. |
| IOFF partial power-down protection | Prevents damaging back-current when VCC = 0 V but I/O lines remain driven - critical for hot-swap and power-gated systems. |
| Schmitt-trigger inputs | Provides 300 mV typical hysteresis - rejects noise on long traces or unterminated stubs without external filtering. |
Applications
| DDR Memory Interface | Industrial PLC Backplane |
|---|---|
Use Scenario: Bidirectional data transfer between 3.3 V FPGA controller and legacy 5 V SRAM modules on a shared address/data bus. IC Role / Device Role: Voltage-translating bus transceiver with direction arbitration and termination matching. Use Value: Eliminates discrete level shifters and termination networks while supporting 100+ MHz burst transfers via 30 Ω on-die resistors. | Use Scenario: Isolating and buffering parallel I/O signals between CPU module and modular I/O expansion cards in a DIN-rail mounted PLC. IC Role / Device Role: Hot-swap-safe bus buffer with IOFF-enabled power sequencing and bus hold for unconnected slots. Use Value: Prevents bus contention during card insertion/removal and holds signal states on unplugged modules without external biasing. |
| Automotive Infotainment Gateway | Test Equipment Data Acquisition |
Use Scenario: Interfacing a 1.8 V application processor to a 3.3 V CAN/FlexRay transceiver cluster via parallel control/status bus. IC Role / Device Role: Mixed-voltage domain translator with ESD-hardened I/O and Schmitt-trigger noise rejection. Use Value: Withstands automotive board-level ESD events (>2 kV HBM) and rejects noisy engine-bay coupling on long ribbon cables. | Use Scenario: High-fidelity digital pattern capture from DUT using parallel 16-bit acquisition channel with minimal added capacitance. IC Role / Device Role: Low-capacitance (10 pF typ.) bidirectional buffer with precise timing control and 3-state isolation. Use Value: Input/output capacitance ≤10 pF preserves signal edge integrity up to 200 Mbps, enabling accurate timing margin analysis. |
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 |
|---|---|---|---|
| 74LVC162245ADGG | No bus hold; lower drive strength (±12 mA vs ±24 mA at VCC = 3.3 V); same pinout and voltage specs. | Requires external pull-ups on unused inputs; unsuitable where floating inputs must be held without added components. | Select when cost sensitivity outweighs bus hold requirement and external biasing is acceptable. |
| SN74LVC162245ADGGR | Texas Instruments part; identical function but different thermal resistance (θJA = 65 °C/W vs Nexperia's 72 °C/W); JEDEC-compliant but non-drop-in due to minor timing skew. | Valid for TI-based designs; may require timing revalidation in high-speed synchronous buses. | Select only when TI qualification or existing TI design reuse mandates this variant. |
Compared with 74LVC162245ADGG, the 74LVCH162245ADL:11 adds bus hold and higher drive strength at identical cost and footprint - making it preferable for unmanaged I/O environments. Versus SN74LVC162245ADGGR, it offers better thermal performance and guaranteed Nexperia reliability data for industrial temperature range (-40 °C to +125 °C).
Availability
74LVCH162245ADL:11 is available at Aetrix Electronics and suitable for DDR memory interfaces, industrial PLC backplanes, automotive infotainment gateways, and test equipment data acquisition requiring stable component supply across extended temperature ranges.
Supply support for 74LVCH162245ADL: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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.
The 74LVCH162245ADL:11 belongs to Nexperia's LVC/LVCH advanced logic family, designed specifically for high-speed, low-power, mixed-voltage parallel bus interfacing in space-constrained and thermally demanding embedded systems.
FAQ
What is the maximum operating frequency supported by the 74LVCH162245ADL:11?
The device does not specify a hard maximum clock frequency, but its propagation delay (tpd) ranges from 1.0 ns to 8.5 ns depending on VCC and temperature. At VCC = 3.3 V and Tamb = 25 °C, tpd ≤ 5.7 ns (typical), supporting reliable operation in parallel buses with ≥100 MHz toggle rates under controlled load conditions (CL ≤ 30 pF).
Does the 74LVCH162245ADL:11 support hot-swap or live-insertion?
Yes - the IOFF circuit ensures outputs enter high-impedance state when VCC = 0 V, preventing back-current from live I/O lines into the unpowered device. This satisfies JEDEC JESD78 Class II requirements and enables safe insertion into powered backplanes, provided slew rate and voltage ramp limits per pin are observed.
How does bus hold functionality behave when an input exceeds VCC?
Bus hold is automatically disabled when VI > VCC, allowing 5.5 V-tolerant operation without conflict. The internal bus hold circuit draws zero current above VCC, preserving 5 V compatibility while retaining active hold behavior for VI ≤ VCC - confirmed in datasheet Section 9, Note [2].
Can 1DIR and 2DIR be tied together for unified 16-bit operation?
Yes - connecting 1DIR and 2DIR enables synchronized direction control across both 8-bit ports, converting the device into a single 16-bit transceiver. This configuration is explicitly supported in the functional description and requires matching 1OE/2OE states to avoid partial enable conflicts.
74LVCH162245ADL:11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74LVCH162245ADL:11 FAQ
1.How can I place an order for 74LVCH162245ADL:11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH162245ADL: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 74LVCH162245ADL:11 reliable?
The price and inventory of 74LVCH162245ADL:11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH162245ADL:11 is usually 5 days.
3.What payment methods are accepted for 74LVCH162245ADL:11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH162245ADL:11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH162245ADL:11?
74LVCH162245ADL:11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH162245ADL: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 74LVCH162245ADL:11?
For technical support, including 74LVCH162245ADL:11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH162245ADL:11 requirements.
6.How does Aetrix verify that 74LVCH162245ADL:11 is sourced from the original manufacturer or authorized distributors?
All 74LVCH162245ADL: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 74LVCH162245ADL:11 meets industry standards.
7.What is the process for return or replacement of 74LVCH162245ADL:11?
All 74LVCH162245ADL:11 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH162245ADL: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 74LVCH162245ADL:11 part is unused and in its original packaging.
Return procedure for 74LVCH162245ADL:11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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