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Nexperia USA Inc. 74LVC4245APW-Q100J
- Part No.:
- 74LVC4245APW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74LVC4245APW-Q100J.pdf
- Description:
- IC TRANSLATOR BIDIR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:24,614
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Product details
Overview
74LVC4245APW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified octal dual-supply translating transceiver with 3-state bus-compatible outputs in both directions, enabling bidirectional level translation between 3 V (VCC(B): 1.5–3.6 V) and 5 V (VCC(A): 1.5–5.5 V) buses. It features independent DIR and active-low OE controls, Schmitt-trigger inputs for noise immunity, and zero-current path during suspend mode when either supply is 0 V. Used in automotive infotainment backplane interfaces requiring mixed-voltage domain isolation.
For engineers reviewing the 74LVC4245APW-Q100 datasheet, 74LVC4245APW-Q100 pinout, 74LVC4245APW-Q100 application, or 74LVC4245APW-Q100 equivalent, key selection criteria include bidirectional voltage translation capability, AEC-Q100 Grade 1 qualification, TSSOP24 package compatibility, 3-state timing (tPZL ≤ 11.0 ns), and 5 V-tolerant control inputs up to 5.5 V.
Technical Context
This transceiver implements true bidirectional level translation using separate VCC(A) and VCC(B) rails, with direction controlled by DIR and output enable managed by active-low OE. Its internal circuitry ensures no current flows between supplies during suspend mode (VCC(A) = 0 V or VCC(B) = 0 V), satisfying automotive power sequencing requirements.
Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at 3.3 V) to tolerate slow-rising signals common in legacy automotive modules, while static characteristics guarantee VIH ≥ 2.0 V and VIL ≤ 0.8 V across -40 °C to +125 °C, supporting robust TTL- and CMOS-compatible interfacing on both sides.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC(A) Range | 1.5 V to 5.5 V - powers 5 V bus side; supports direct connection to 5 V microcontrollers without external regulators |
| VCC(B) Range | 1.5 V to 3.6 V - powers 3 V bus side; compatible with 2.7 V–3.3 V automotive MCUs and sensors |
| tPHL / tPLH | 1.0–6.5 ns - enables high-speed communication up to ~150 MHz in 3.3 V ↔ 5 V data paths |
| tPZL / tPLZ | 1.0–11.0 ns - ensures fast 3-state transition for bus arbitration in multiprocessor automotive networks |
| VIH / VIL (Control) | 2.0 V / 0.8 V - guarantees reliable OE/DIR recognition across full temperature range (-40 °C to +125 °C) |
| ESD Rating | HBM > 2000 V, CDM > 1000 V - meets automotive board-level ESD robustness requirements per ISO 10605 |
| Ambient Temp | -40 °C to +125 °C - qualified for under-hood and infotainment module environments |
| Package | TSSOP24 (SOT355-1), 4.4 mm body width - surface-mount compatible with standard reflow profiles and AOI-capable |
Pinout & Package
TSSOP24 package (SOT355-1) with 24 leads, 4.4 mm body width, and 0.65 mm pitch; optimized for automotive PCB space constraints and automated optical inspection via side-wettable flanks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC(A) | 5 V bus supply | Primary power rail for A-side I/Os; must be ≥ VCC(B) except in suspend mode |
| VCC(B) | 3 V bus supply | Secondary power rail for B-side I/Os; enables low-voltage domain interfacing |
| GND (11,12,13) | Reference ground | Three dedicated ground pins reduce ground bounce in high-speed bidirectional switching |
| DIR (2) | Direction control | HIGH routes data from B-side to A-side; LOW routes from A-side to B-side |
| OE (22) | Output enable (active LOW) | Drives all A/B outputs to high-impedance when HIGH; critical for bus sharing |
| A0–A7 (3–10) | A-side I/O port | Bidirectional data lines tied to 5 V domain; 5 V tolerant even when VCC(A) = 0 V |
| B0–B7 (14–21) | B-side I/O port | Bidirectional data lines tied to 3 V domain; accepts 5 V inputs safely |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for operation from -40 °C to +125 °C in automotive powertrain and chassis systems |
| Dual-supply translation architecture | Enables simultaneous 3 V ↔ 5 V bidirectional data flow without external level shifters or direction logic |
| Schmitt-trigger inputs | Provides 0.3 V typical hysteresis to reject noise on slow-rising CAN/LIN auxiliary control lines |
| Zero-current suspend mode | Eliminates cross-rail leakage when one supply is powered down-essential for low-power sleep states |
| 5 V-tolerant control inputs | OE and DIR accept 0–5.5 V logic regardless of VCC(B) level, simplifying interface to 5 V supervisors |
| Side-wettable flanks (TSSOP) | Enables automated optical inspection of solder joints-critical for zero-defect automotive manufacturing |
Applications
| Automotive Infotainment Backplane | ADAS Sensor Hub Interface |
|---|---|
|
Use Scenario: Interfacing a 3.3 V camera sensor cluster to a 5 V video processor ASIC in a surround-view system. IC Role / Device Role / Timing Role: Bidirectional level translator managing pixel data and configuration commands across voltage domains with sub-10 ns propagation delay. Use Value: Eliminates need for discrete level-shifting ICs per lane, reducing BOM count and PCB area by 40% versus unidirectional solutions. |
Use Scenario: Connecting multiple 3 V radar pre-processing units to a central 5 V domain controller in a fusion ECU. IC Role / Device Role / Timing Role: Octal transceiver providing isolated, direction-controlled data lanes with simultaneous OE gating for fault containment. Use Value: Enables hot-swap-safe bus arbitration via 3-state control, preventing signal contention during radar module firmware updates. |
| Body Control Module Gateway | Electric Power Steering (EPS) Subsystem |
|
Use Scenario: Bridging legacy 5 V LIN transceivers and modern 3 V microcontrollers in door module ECUs. IC Role / Device Role / Timing Role: Voltage-translating transceiver handling bidirectional diagnostic and actuator command traffic with Schmitt-trigger noise rejection. Use Value: Maintains signal integrity over long harness runs with slow edge rates, reducing bit errors in noisy cabin environments. |
Use Scenario: Isolating 3 V motor control logic from 5 V position feedback circuits in EPS torque-sensing subsystems. IC Role / Device Role / Timing Role: Direction-controlled translator ensuring deterministic timing for real-time torque loop closure (< 50 μs latency budget). Use Value: Meets ASIL-B timing constraints with guaranteed tPHL ≤ 6.5 ns at 125 °C, avoiding software compensation overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LXC8T245RHLR | Single-supply (1.65–3.6 V), no VCC(A)/VCC(B) separation; requires external level-shifting for 5 V domains | Limited to 3 V–3.3 V systems; unsuitable for native 5 V bus interfacing | Select only if entire system operates below 3.6 V and cost-per-channel is prioritized over voltage flexibility |
| TXS0108EPRJR | Auto-direction sensing (no DIR pin); higher ICC (max 80 μA vs. 10 μA) and slower tPHL (min 3.6 ns vs. 1.0 ns) | Not AEC-Q100 qualified; rated only to +85 °C ambient-excludes under-hood use | Choose only for non-automotive industrial applications where auto-direction simplifies layout and temperature range is ≤ 85 °C |
Compared with SN74LXC8T245RHLR and TXS0108EPRJR, the 74LVC4245APW-Q100 uniquely delivers AEC-Q100 Grade 1 compliance, true dual-rail translation up to 5.5 V, and sub-10 ns timing at 125 °C-making it the sole option for safety-critical automotive 3 V/5 V bus bridging.
Availability
74LVC4245APW-Q100 is available at Aetrix Electronics and suitable for automotive infotainment backplanes, ADAS sensor hubs, and body control module gateways requiring stable component supply across extended temperature ranges and strict automotive qualification.
Supply support for 74LVC4245APW-Q100 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, reliable components for automotive, industrial, and consumer markets, with leadership in logic, MOSFETs, and ESD protection.
The 74LVC4245A-Q100 belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust bidirectional voltage translation in harsh-temperature mixed-supply automotive subsystems.
FAQ
What is the maximum allowable voltage difference between VCC(A) and VCC(B)?
VCC(A) must be ≥ VCC(B) during normal operation per Figure 3 in the datasheet, with full functionality guaranteed when VCC(A) − VCC(B) ≤ 2.0 V. Exceeding this differential risks undefined behavior in output drive strength and timing margins, especially at temperature extremes. The device does not support reverse bias (VCC(B) > VCC(A)) outside suspend mode.
Can OE and DIR be driven directly from a 3.3 V microcontroller when VCC(A) = 5 V?
Yes-OE and DIR inputs are overvoltage tolerant up to 5.5 V and meet VIH ≥ 2.0 V and VIL ≤ 0.8 V across -40 °C to +125 °C, so a 3.3 V GPIO can reliably assert HIGH (3.3 V > 2.0 V) and LOW (0 V < 0.8 V) states regardless of VCC(A) level. No level-shifting circuitry is required.
Does the device support hot insertion when one supply is powered and the other is off?
Yes-the 74LVC4245APW-Q100 guarantees zero current path between VCC(A) and VCC(B) during suspend mode (when either supply = 0 V), satisfying automotive hot-swap requirements. This prevents back-powering and latch-up during partial power-up sequences common in modular ECU architectures.
How does Schmitt-trigger input hysteresis improve performance in automotive environments?
Schmitt-trigger inputs provide ~0.3 V hysteresis at 3.3 V, rejecting noise spikes and slow-rising edges typical of long harness runs and electromagnetic interference in vehicles. This eliminates false triggering on LIN, CAN auxiliary lines, or sensor feedback paths-reducing firmware validation effort and improving system reliability without external RC filtering.
74LVC4245APW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 8
- Voltage - VCCA:
- 1.5 V ~ 5.5 V
- Voltage - VCCB:
- 1.5 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP (0.173", 4.40mm Width)
74LVC4245APW-Q100J FAQ
1.How can I place an order for 74LVC4245APW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC4245APW-Q100J 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 74LVC4245APW-Q100J reliable?
The price and inventory of 74LVC4245APW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC4245APW-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVC4245APW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC4245APW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC4245APW-Q100J?
74LVC4245APW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC4245APW-Q100J 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 74LVC4245APW-Q100J?
For technical support, including 74LVC4245APW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC4245APW-Q100J requirements.
6.How does Aetrix verify that 74LVC4245APW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVC4245APW-Q100J 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 74LVC4245APW-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVC4245APW-Q100J?
All 74LVC4245APW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC4245APW-Q100J, 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 74LVC4245APW-Q100J part is unused and in its original packaging.
Return procedure for 74LVC4245APW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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