My Inquiry
My Account
Nexperia USA Inc. 74LVCH245APW-Q100J
- Part No.:
- 74LVCH245APW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVCH245APW-Q100J.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,530
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVCH245APW-Q100 from Nexperia is an automotive-qualified octal bus transceiver with 3-state outputs, direction control (DIR), and active-low output enable (OE). It operates from 1.2 V to 3.6 V, tolerates 5.5 V inputs, and features bus hold on all data inputs-enabling robust signal integrity in noisy automotive infotainment and body control modules.
For engineers reviewing the 74LVCH245APW-Q100 datasheet, 74LVCH245APW-Q100 pinout, 74LVCH245APW-Q100 application, or 74LVCH245APW-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), IOFF partial power-down capability, Schmitt-trigger inputs for slow-edge tolerance, and TSSOP20 package with side-wettable flanks for AOI-compatible solder joint inspection.
Technical Context
This device implements a bidirectional 8-bit data path controlled by DIR and OE signals: DIR selects data flow direction (A→B or B→A), while OE disables all outputs into high-impedance state. Its CMOS design supports mixed-voltage interfacing-3.3 V logic can safely drive and read 5 V-tolerant I/Os without level shifters.
The 74LVCH245A-Q100 variant includes bus hold circuitry on all eight A-side data pins (A0–A7), eliminating external pull resistors in floating-bus scenarios. The IOFF feature actively isolates outputs during power-down, preventing backflow current when VCC = 0 V-critical for hot-swap and low-power sleep modes in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.2 V to 3.6 V - Enables operation across battery-supplied automotive rails including post-cranking brownout conditions. |
| Input voltage tolerance | Up to 5.5 V - Allows direct connection to legacy 5 V microcontrollers or sensors without external clamping. |
| Propagation delay (VCC = 3.3 V) | Max 6.3 ns - Supports high-speed data transfer in CAN FD gateway interfaces and ADAS sensor aggregation paths. |
| Bus hold current (VI = 0.8 V) | 75 μA LOW / -75 μA HIGH - Maintains valid logic states on un-driven A-side buses during ECU reset sequences. |
| IOFF leakage (VCC = 0 V) | ±20 μA - Limits backfeed current from powered subsystems into unpowered domains, satisfying ISO 16750-2 power-off requirements. |
| ESD rating (HBM) | >2000 V - Meets AEC-Q100 stress test requirements for assembly handling and in-vehicle electrostatic environments. |
| Ambient temperature range | -40 °C to +125 °C - Qualified for under-hood and transmission-control module mounting locations. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, side-wettable flanks for automated optical inspection of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DIR) | Direction control input | LOW enables A→B data flow; HIGH enables B→A-used for bidirectional SPI or shared memory bus arbitration. |
| 2–9 (A0–A7) | Data I/O port A | Bus-hold enabled inputs/outputs; retain last valid state when floating-reduces need for external biasing in modular wiring harnesses. |
| 10 (GND) | Ground reference | 0 V return path for all internal logic and I/O circuits; must be connected to chassis ground per ISO 11452-4 EMC layout rules. |
| 11–18 (B0–B7) | Data I/O port B | 5.5 V tolerant inputs/outputs; interface directly with 5 V CAN transceivers or legacy MCU peripherals. |
| 19 (OE) | Output enable (active LOW) | Drives all A/B outputs to high-Z when HIGH-enables multi-drop bus sharing and prevents contention during firmware updates. |
| 20 (VCC) | Power supply | Accepts 1.2–3.6 V; decoupling capacitor (100 nF X7R) required within 3 mm per AEC-Q200 layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 certified - Validated for continuous operation at +125 °C ambient in engine control units. |
| Partial power-down support | IOFF circuitry active at VCC = 0 V - Prevents reverse current from B-side 5 V domains into unpowered A-side microcontroller I/Os. |
| Schmitt-trigger inputs | Hysteresis ≥ 0.3 V at VCC = 3.3 V - Rejects noise on long PCB traces in door module LIN bus interfaces. |
| Wide voltage compatibility | 1.2 V core logic with 5.5 V-tolerant I/Os - Enables single transceiver to bridge 1.8 V FPGA configuration logic and 5 V sensor ADCs. |
| Bus hold on data inputs | 75 μA sustaining current at VI = 0.8 V - Eliminates external pull-up/down resistors on A-side lines in distributed body electronics nodes. |
Applications
| Infotainment Head Unit Interface | Body Control Module Bus Expansion |
|---|---|
Use Scenario: Bridging a 3.3 V application processor to legacy 5 V display timing controller and audio codec. IC Role / Device Role / Timing Role: Bidirectional level-translating bus transceiver managing parallel RGB data and control signals. Use Value: Eliminates discrete level shifters and reduces BOM count by 6 components while maintaining <6.3 ns propagation delay for pixel clock alignment. |
Use Scenario: Extending CAN/LIN peripheral bus in door module with isolated power domains. IC Role / Device Role / Timing Role: Direction-controlled data repeater enabling shared I²C EEPROM access between main ECU and mirror actuator MCU. Use Value: Bus hold maintains valid address bits during local MCU reset, preventing EEPROM corruption during power sequencing. |
| ADAS Sensor Data Aggregation | Electric Power Steering (EPS) Communication Hub |
Use Scenario: Consolidating raw camera and radar sensor data onto a central domain controller via parallel LVCMOS bus. IC Role / Device Role / Timing Role: High-speed octal transceiver synchronizing frame start pulses and pixel data streams. Use Value: 1.2 V minimum supply allows operation during vehicle start-stop battery sag; 5.5 V tolerance protects against load-dump transients. |
Use Scenario: Interfacing torque sensor (5 V analog front-end) and motor driver (3.3 V SPI) with EPS main MCU. IC Role / Device Role / Timing Role: Voltage-level translating buffer for SPI clock, MOSI, MISO, and CS lines. Use Value: IOFF isolation prevents backfeed from 5 V sensor supply into 3.3 V MCU during emergency shutdown, meeting ISO 26262 ASIL-B fault containment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC245APW-Q100 | No bus hold; lower ICC (0.1 μA vs 5 μA typical); identical pinout and voltage specs | Suitable where external pull resistors are acceptable and ultra-low static current is prioritized | Select when system-level bus termination is already implemented and cost sensitivity outweighs board-space savings from bus hold. |
| SN74LVC8T245RHLR | Higher drive strength (32 mA vs 24 mA); different package (VQFN-24); no AEC-Q100 qualification | Targeted at industrial/commercial designs requiring higher fan-out or thermal performance | Choose only for non-automotive applications needing enhanced output current or finer-pitch packaging; not qualified for automotive use. |
Compared with 74LVC245APW-Q100, the 74LVCH245APW-Q100 adds bus hold to reduce external components but increases quiescent current; versus SN74LVC8T245RHLR, it trades package density and drive strength for AEC-Q100 compliance and IOFF protection-making it the sole choice for safety-critical automotive bus extension.
Availability
74LVCH245APW-Q100 is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and ADAS sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVCH245APW-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, and energy-efficient logic, analog, and discrete devices for automotive, industrial, and consumer markets.
The 74LVCH245A-Q100 belongs to Nexperia's automotive logic portfolio, engineered specifically for robust bidirectional data translation in harsh-temperature, high-reliability vehicle subsystems.
FAQ
What is the function of the DIR pin on the 74LVCH245APW-Q100?
The DIR (direction) pin controls data flow direction between ports A and B. When DIR is LOW, data passes from A0–A7 to B0–B7; when DIR is HIGH, data flows from B0–B7 to A0–A7. This bidirectional capability enables flexible bus architecture in automotive gateways where multiple masters share a common data path without requiring separate unidirectional buffers.
Does the 74LVCH245APW-Q100 support hot insertion?
Yes-the IOFF circuit ensures that when VCC = 0 V, all outputs enter a high-impedance state with leakage limited to ±20 μA, preventing damaging backflow current from live system buses into the unpowered device. This meets AEC-Q100 hot-insertion requirements for modular ECU replacement in service bays.
How does bus hold improve reliability in automotive wiring harnesses?
Bus hold maintains the last valid logic state on A-side inputs (A0–A7) when disconnected or floating-eliminating false transitions caused by electromagnetic interference on long harness runs. With 75 μA sustaining current at 0.8 V, it prevents spurious resets in door module microcontrollers during connector mating/unmating events.
Can the 74LVCH245APW-Q100 interface with both 1.8 V and 5 V logic simultaneously?
Yes-its 1.2 V to 3.6 V supply range supports 1.8 V core logic, while its 5.5 V-tolerant inputs/outputs allow direct connection to 5 V peripherals. For example, A-side can connect to a 1.8 V FPGA I/O bank, and B-side to a 5 V CAN transceiver, with no external level-shifting components required.
74LVCH245APW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- 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:
- 20-TSSOP
74LVCH245APW-Q100J FAQ
1.How can I place an order for 74LVCH245APW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH245APW-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 74LVCH245APW-Q100J reliable?
The price and inventory of 74LVCH245APW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH245APW-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVCH245APW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH245APW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH245APW-Q100J?
74LVCH245APW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH245APW-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 74LVCH245APW-Q100J?
For technical support, including 74LVCH245APW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH245APW-Q100J requirements.
6.How does Aetrix verify that 74LVCH245APW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVCH245APW-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 74LVCH245APW-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVCH245APW-Q100J?
All 74LVCH245APW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH245APW-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 74LVCH245APW-Q100J part is unused and in its original packaging.
Return procedure for 74LVCH245APW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVCH245APW-Q100J Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
