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Nexperia USA Inc. 74LVCH8T245PW-Q10J
- Part No.:
- 74LVCH8T245PW-Q10J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVCH8T245PW-Q10J.pdf
- Description:
- IC TRANSLATION TXRX 5.5V 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,071
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Product details
Overview
74LVCH8T245PW-Q10J from Nexperia is an automotive-qualified 8-bit dual-supply translating transceiver with 3-state outputs, enabling bidirectional level translation between 1.2 V and 5.5 V domains. It features independent VCC(A) and VCC(B) supplies, DIR-controlled data direction, OE-enabled bus isolation, and IOFF circuitry for partial power-down protection. Used in automotive infotainment and ADAS domain controllers to interface 1.8 V sensor hubs with 3.3 V microcontroller buses.
For engineers reviewing the 74LVCH8T245PW-Q10J datasheet, 74LVCH8T245PW-Q10J pinout, 74LVCH8T245PW-Q10J application, or 74LVCH8T245PW-Q10J equivalent, key selection criteria include dual-voltage translation range (1.2–5.5 V), AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), bus-hold inputs, suspend-mode behavior, and TSSOP24 package compatibility with AOI-capable assembly.
Technical Context
This transceiver implements true bidirectional voltage translation using separate input-referenced logic thresholds: An, DIR, and OE are referenced to VCC(A); Bn pins are referenced to VCC(B). Direction control is synchronous-DIR HIGH enables A→B transmission, DIR LOW enables B→A. The IOFF circuit actively disables outputs during power-down, blocking backflow current when either supply is at GND.
Active bus-hold circuitry maintains valid logic states on floating A/B port inputs without external pull resistors. Translation performance varies by supply pair: max data rates reach 420 Mbps (3.3 V ↔ 5.0 V), 210 Mbps (to 3.3 V), and 75 Mbps (to 1.8 V), with propagation delays as low as 0.3 ns (OE→An at 5.0 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCC(A): 1.2 V–5.5 V; VCC(B): 1.2 V–5.5 V - supports mixed-voltage interconnects across 1.2/1.5/1.8/2.5/3.3/5.0 V nodes |
| Temperature Range | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Max Data Rate | 420 Mbps (3.3 V → 5.0 V) - enables high-speed serial peripheral bridging without protocol conversion |
| IOFF Leakage | ±2 μA at -40 °C to +125 °C - prevents damaging back-current during asymmetric power sequencing |
| Bus-Hold Current | ±19 μA at VCCI = 1.2 V - eliminates need for external biasing on unused data lines |
| Propagation Delay | 0.3 ns (OE→An, VCC = 5.0 V) - supports sub-nanosecond timing-critical enable/disable in real-time systems |
| ESD Rating | HBM: >4000 V; CDM: >1000 V - meets stringent automotive ESD immunity requirements |
Pinout & Package
TSSOP24 (SOT355-1) package: plastic thin shrink small outline, 24-pin, 4.4 mm body width, side-wettable flanks for automated optical inspection (AOI) of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 23, 24 | VCC(B) | Supply reference for B-port I/O - all Bn pins operate at this voltage level |
| 2 | DIR | Direction control input referenced to VCC(A) - HIGH = A→B, LOW = B→A |
| 3–10 | A1–A8 | Data I/O port referenced to VCC(A) - bidirectional signals tied to host-side logic |
| 11–13 | GND | Common ground return - all three pins must be connected to 0 V |
| 14–21 | B1–B8 | Data I/O port referenced to VCC(B) - bidirectional signals tied to peripheral-side logic |
| 22 | OE | Output enable (active LOW) referenced to VCC(A) - asserts high-impedance state on both ports |
| 1 | VCC(A) | Supply reference for A-port I/O, DIR, and OE - defines logic thresholds for control inputs |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Supply Translation | Independent VCC(A)/VCC(B) rails allow simultaneous interfacing of 1.2 V FPGA I/O and 5.0 V MCU peripherals |
| IOFF Partial Power-Down | Automatic output disable when either VCC is at GND - prevents backfeed during hot-swap or sleep mode |
| Bus-Hold Inputs | Active internal weak pull-up/pull-down on all A/B port pins - eliminates external bias resistors and PCB space |
| Suspend Mode | Both A and B ports enter high-impedance OFF-state if VCC(A) = GND or VCC(B) = GND - ensures safe bus isolation |
| AEC-Q100 Qualification | Grade 1 qualification (-40 °C to +125 °C) with full automotive reliability testing - suitable for safety-critical ECUs |
Applications
| Automotive Infotainment Head Unit | ADAS Camera Interface Bridge |
|---|---|
Use Scenario: Interfacing a 1.8 V MIPI CSI-2 image sensor hub with a 3.3 V application processor in a vehicle head unit. IC Role / Device Role / Timing Role: Bidirectional level translator managing clock, data, and control lines between mismatched voltage domains. Use Value: Eliminates discrete resistor networks and reduces BOM count while maintaining signal integrity at 210 Mbps. | Use Scenario: Connecting a 2.5 V radar preprocessing ASIC to a 5.0 V CAN-FD gateway controller in a front-end ADAS module. IC Role / Device Role / Timing Role: Voltage-translating transceiver enabling reliable data exchange across isolated power domains with suspend-mode safety. Use Value: IOFF protection prevents latch-up during radar subsystem power cycling, meeting ISO 16750-2 electrical stress requirements. |
| Body Control Module (BCM) Gateway | Electric Power Steering (EPS) ECU |
Use Scenario: Bridging a 1.2 V ultra-low-power microcontroller (sleep mode) to a 3.3 V LIN transceiver in a BCM gateway node. IC Role / Device Role / Timing Role: Level-shifting transceiver with bus-hold inputs preserving bus state during MCU deep-sleep transitions. Use Value: Reduces system wake-up latency by avoiding external pull-ups and enabling immediate bus readiness post-wake. | Use Scenario: Isolating 1.5 V torque-sensor ADC interface from a 5.0 V motor driver MCU in an EPS control unit. IC Role / Device Role / Timing Role: Direction-controlled translator supporting bidirectional calibration data flow with precise OE timing control. Use Value: Sub-1 ns OE-to-output enable time ensures deterministic response to torque-sensor fault conditions per ISO 26262 ASIL-B timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply translating transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVCH8T245RHLR | No AEC-Q100 qualification; wider industrial temp range (-40 °C to +125 °C) but not automotive-grade; lower max data rate (320 Mbps @ 3.3 V→5.0 V) | Not approved for safety-critical automotive ECUs; suitable for industrial HMIs or test equipment | Select only for non-automotive designs requiring TI's enhanced ESD (8 kV HBM) or different package (VQFN) |
| 74LVC8T245PW-Q100 | Lacks bus-hold circuitry; identical pinout, AEC-Q100 Grade 1, and IOFF functionality; higher static power consumption (ICC up to 30 μA vs. 25 μA) | Requires external pull resistors on floating inputs; less robust in noisy automotive environments | Choose only if bus-hold is unnecessary and cost sensitivity outweighs design-in simplicity |
Compared with SN74AVCH8T245RHLR and 74LVC8T245PW-Q100, the 74LVCH8T245PW-Q10J uniquely combines AEC-Q100 Grade 1 qualification, integrated bus-hold, and 420 Mbps performance - making it optimal for next-generation automotive domain controllers where reliability and layout efficiency are critical.
Availability
74LVCH8T245PW-Q10J is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera interfaces, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVCH8T245PW-Q10J 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.
This device belongs to Nexperia's automotive-qualified LVC/LVCH logic family, engineered specifically for robust voltage translation in safety-critical vehicle subsystems operating across wide thermal and supply-voltage ranges.
FAQ
What is the maximum allowable voltage difference between VCC(A) and VCC(B)?
The datasheet specifies no explicit maximum differential voltage limit. Both supplies operate independently within 1.2 V to 5.5 V, and the device functions correctly with any combination in that range - including VCC(A) = 1.2 V and VCC(B) = 5.5 V. Absolute maximum ratings confirm each supply may reach +6.5 V individually, but recommended operation stays within 1.2–5.5 V for both.
Does the 74LVCH8T245PW-Q10J support hot insertion?
Yes - its IOFF circuitry ensures outputs go high-impedance when either VCC(A) or VCC(B) is at GND, preventing back-current flow during live board insertion. This behavior is validated across the full -40 °C to +125 °C range and is integral to its AEC-Q100 qualification for automotive hot-swap scenarios.
How does bus-hold functionality interact with OE = HIGH (disabled state)?
When OE = HIGH, both A and B ports are forced into high-impedance (3-state) regardless of bus-hold activity. Bus-hold only operates on active I/O pins - it is disabled during 3-state and suspend modes. This ensures no contention or unintended current paths when the transceiver is logically isolated from either bus.
Can DIR and OE be driven from different voltage domains than VCC(A)?
No - DIR and OE inputs are strictly referenced to VCC(A) and must be driven within 0 V to VCC(A), with VIH/VIL thresholds defined as percentages of VCC(A). Driving them from another supply violates absolute maximum ratings and risks latch-up or undefined logic behavior, as confirmed in Table 7's VIH/VIL specifications.
74LVCH8T245PW-Q10J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
74LVCH8T245PW-Q10J FAQ
1.How can I place an order for 74LVCH8T245PW-Q10J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH8T245PW-Q10J 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 74LVCH8T245PW-Q10J reliable?
The price and inventory of 74LVCH8T245PW-Q10J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH8T245PW-Q10J is usually 5 days.
3.What payment methods are accepted for 74LVCH8T245PW-Q10J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH8T245PW-Q10J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH8T245PW-Q10J?
74LVCH8T245PW-Q10J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH8T245PW-Q10J 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 74LVCH8T245PW-Q10J?
For technical support, including 74LVCH8T245PW-Q10J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH8T245PW-Q10J requirements.
6.How does Aetrix verify that 74LVCH8T245PW-Q10J is sourced from the original manufacturer or authorized distributors?
All 74LVCH8T245PW-Q10J 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 74LVCH8T245PW-Q10J meets industry standards.
7.What is the process for return or replacement of 74LVCH8T245PW-Q10J?
All 74LVCH8T245PW-Q10J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH8T245PW-Q10J, 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 74LVCH8T245PW-Q10J part is unused and in its original packaging.
Return procedure for 74LVCH8T245PW-Q10J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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