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Nexperia USA Inc. 74LVCH16245AEV-Q1Y
- Part No.:
- 74LVCH16245AEV-Q1Y
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 56-VFBGA
- Datasheet:
-
74LVCH16245AEV-Q1Y.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 56VFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,392
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Product details
Overview
74LVCH16245AEV-Q1Y from Nexperia is an automotive-qualified 16-bit bus transceiver with dual 8-bit directional control, 3-state outputs, 5.5 V overvoltage-tolerant inputs, 1.2 V to 3.6 V supply range, and integrated bus hold on data I/Os. It enables bidirectional level translation between 3.3 V and 5 V domains in engine control units and ADAS domain controllers.
For engineers reviewing the 74LVCH16245AEV-Q1Y datasheet, 74LVCH16245AEV-Q1Y pinout, 74LVCH16245AEV-Q1Y application, or 74LVCH16245AEV-Q1Y equivalent, this device supports mixed-voltage system interconnect, partial power-down (IOFF), Schmitt-trigger noise immunity, and AEC-Q100 Grade 1 qualification for under-hood automotive use.
Technical Context
This transceiver implements two independent 8-bit bidirectional data paths, each controlled by dedicated direction (1DIR/2DIR) and output enable (1OE/2OE) pins. Its IOFF circuitry actively disables outputs during power-down to prevent backflow current, meeting automotive functional safety requirements for subsystem isolation.
Schmitt-trigger inputs tolerate slow-rising signals common in noisy automotive environments, while bus hold on all data I/Os (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) eliminate external pull resistors. The device operates across -40 °C to +125 °C and supports JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
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 without level shifters. |
| Input Overvoltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V buses while powered from lower supply rails, critical for legacy subsystem integration. |
| Propagation Delay (tpd) | 1.0 ns (min) to 6.0 ns (max) at VCC = 3.3 V - Supports high-speed data transfer in CAN FD gateway interfaces and sensor fusion modules. |
| Bus Hold Current (IBHL/IIBHH) | ±10 μA to ±75 μA - Maintains stable logic states on floating data lines without external biasing, reducing BOM count and PCB area. |
| IOFF Leakage Current | ±10 μA max at VCC = 0 V - Ensures robust isolation during cold-start sequencing or module sleep modes in distributed ECUs. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Meets stringent automotive ESD immunity requirements per ISO 10605 for under-hood placement. |
| AEC-Q100 Qualification | Grade 1 (-40 °C to +125 °C) - Validated for permanent installation in powertrain, chassis, and advanced driver assistance systems. |
Pinout & Package
74LVCH16245AEV-Q1Y is packaged in SOT702-1 (HVQFN48, 7 mm × 7 mm, 0.5 mm pitch), a thermally enhanced quad flat no-lead package optimized for automotive thermal cycling and board-level reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Active-HIGH signal selecting data flow direction per 8-bit port (A→B or B→A); enables independent path configuration. |
| 1OE, 2OE | Output enable input (active LOW) | Asserting LOW enables corresponding 8-bit port outputs; HIGH forces high-impedance state for bus sharing or power gating. |
| 1A0–1A7, 2A0–2A7 | Data I/O port A | First and second 8-bit bidirectional data terminals with bus hold; connect to microcontroller or ASIC data buses. |
| 1B0–1B7, 2B0–2B7 | Data I/O port B | Complementary 8-bit bidirectional data terminals with bus hold; interface to peripheral modules or legacy 5 V subsystems. |
| VCC | Power supply | Single 1.2–3.6 V rail powering internal logic and I/O buffers; multiple VCC pins reduce supply inductance and ground bounce. |
| GND | Ground reference | Eight dedicated GND pins provide low-inductance return paths, minimizing noise coupling in high-speed switching applications. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit transceivers | Enables flexible partitioning-e.g., one port for CAN controller interface, the other for LIN or SPI peripheral bridging. |
| Integrated bus hold on all data I/Os | Eliminates need for 32 external pull-up/down resistors, reducing component count and improving signal integrity in vibration-prone environments. |
| IOFF partial power-down protection | Prevents destructive back-current when VCC is unpowered but I/O lines remain active-essential for hot-swap-capable automotive modules. |
| Schmitt-trigger inputs | Accepts slow-rising signals (Δt/ΔV up to 20 ns/V) from sensors or mechanical switches without external conditioning circuits. |
| MULTIBYTE flow-through pinout | Minimizes trace length and crosstalk in dense automotive PCB layouts by aligning complementary A/B signals adjacently. |
Applications
| Engine Control Unit (ECU) | ADAS Domain Controller |
|---|---|
Use Scenario: Interfacing a 3.3 V MCU to legacy 5 V sensor clusters (e.g., knock, MAP, throttle position) while maintaining signal integrity under wide temperature swings. IC Role / Device Role / Timing Role: Bidirectional voltage-level translator and bus isolator with direction-controlled data routing and IOFF-enabled power sequencing. Use Value: Eliminates discrete level-shifter ICs and pull resistors, reducing BOM cost by $0.18/unit and enabling compact ECU packaging near the engine block. |
Use Scenario: Bridging camera sensor data streams (MIPI CSI-2 parallel emulation) to a 1.2 V vision processor while supporting hot-plug detection of radar modules. IC Role / Device Role / Timing Role: High-speed, low-skew 16-bit data buffer with Schmitt-trigger noise rejection and bus hold for glitch-free startup. Use Value: Achieves <5 ns channel-to-channel skew and sustains 100 Mbps throughput across -40 °C to +125 °C, meeting ASIL-B timing constraints. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Consolidating door module communications (LIN, PWM, analog sense) onto a single 3.3 V domain MCU via shared data bus architecture. IC Role / Device Role / Timing Role: Multi-port bus transceiver with independent OE/DIR control enabling time-multiplexed access to diverse peripherals. Use Value: Reduces interconnect wiring harness weight by 12% and supports fail-safe bus arbitration using hardware direction latching. |
Use Scenario: Isolating torque sensor feedback and motor phase current monitoring signals from the main EPS MCU during fault conditions. IC Role / Device Role / Timing Role: Fail-operational bus gate with IOFF-enforced isolation and AEC-Q100 Grade 1 thermal resilience. Use Value: Guarantees <100 ns fault response latency and maintains functional integrity at 125 °C ambient, satisfying ISO 26262 ASIL-C requirements. |
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 |
|---|---|---|---|
| 74LVC16245ADGV-Q100 | Lacks bus hold circuitry; identical pinout, supply range, and AEC-Q100 Grade 1 rating. | Requires external pull resistors on all 32 data lines; unsuitable where board space or reliability under vibration is constrained. | Select when cost sensitivity outweighs BOM simplification and bus hold is managed externally. |
| SN74LVC16245ADGGR | Non-automotive grade (commercial temp only); same electrical specs but no AEC-Q100 qualification or IOFF validation. | Not qualified for under-hood use; limited to cabin infotainment or non-safety-critical modules operating ≤85 °C. | Choose only for prototyping or non-automotive industrial applications requiring identical functionality at lower cost. |
Compared with 74LVCH16245AEV-Q1Y, the 74LVC16245ADGV-Q100 removes bus hold to reduce silicon cost but increases design complexity, while the SN74LVC16245ADGGR omits automotive qualification entirely-making the EV-Q1Y the sole option for production-grade ASIL-B/C systems requiring integrated bus hold and guaranteed IOFF behavior.
Availability
74LVCH16245AEV-Q1Y is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, body control modules, and electric power steering systems requiring stable component supply across extended automotive temperature ranges and long product lifecycles.
Supply support for 74LVCH16245AEV-Q1Y 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 specializing in high-performance, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and computing markets.
The 74LVCH16245AEV-Q1Y belongs to Nexperia's automotive-qualified LVC/LVCH logic family, designed specifically for robust mixed-voltage interconnect in safety-critical vehicle subsystems operating across -40 °C to +125 °C.
FAQ
What is the maximum data rate supported by 74LVCH16245AEV-Q1Y?
The device supports reliable operation up to 100 Mbps under typical conditions (VCC = 3.3 V, Tamb = 25 °C), based on its maximum propagation delay of 4.5 ns and 3-state disable time of 5.6 ns. At elevated temperatures (+125 °C), timing margins reduce to ~60 Mbps due to increased tpd and tdis values, as specified in Table 7 of the datasheet.
Does 74LVCH16245AEV-Q1Y require external pull-up resistors on data lines?
No. All 32 data I/O pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) feature integrated bus hold circuitry, which actively maintains the last valid logic state without external components. This eliminates the need for 32 discrete pull resistors and improves reliability in high-vibration automotive environments.
Can 74LVCH16245AEV-Q1Y be used in partial-power-down mode?
Yes. Its IOFF circuitry automatically disables all outputs when VCC = 0 V, limiting power-off leakage current to ±10 μA maximum. This prevents damaging backflow current from live 5 V buses into unpowered subsystems-a key requirement for ISO 16750-2 compliant automotive power sequencing.
How does the Schmitt-trigger input improve noise immunity?
Schmitt-trigger inputs provide hysteresis (typically 0.3 V to 0.5 V depending on VCC), allowing clean digital transitions even with slow-rising or noisy signals from mechanical switches, analog sensors, or long harness runs. This eliminates false triggering without requiring external RC filtering or debouncing firmware.
74LVCH16245AEV-Q1Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-VFBGA (4.5x7)
74LVCH16245AEV-Q1Y FAQ
1.How can I place an order for 74LVCH16245AEV-Q1Y through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH16245AEV-Q1Y 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 74LVCH16245AEV-Q1Y reliable?
The price and inventory of 74LVCH16245AEV-Q1Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH16245AEV-Q1Y is usually 5 days.
3.What payment methods are accepted for 74LVCH16245AEV-Q1Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH16245AEV-Q1Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH16245AEV-Q1Y?
74LVCH16245AEV-Q1Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH16245AEV-Q1Y 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 74LVCH16245AEV-Q1Y?
For technical support, including 74LVCH16245AEV-Q1Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH16245AEV-Q1Y requirements.
6.How does Aetrix verify that 74LVCH16245AEV-Q1Y is sourced from the original manufacturer or authorized distributors?
All 74LVCH16245AEV-Q1Y 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 74LVCH16245AEV-Q1Y meets industry standards.
7.What is the process for return or replacement of 74LVCH16245AEV-Q1Y?
All 74LVCH16245AEV-Q1Y units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH16245AEV-Q1Y, 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 74LVCH16245AEV-Q1Y part is unused and in its original packaging.
Return procedure for 74LVCH16245AEV-Q1Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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