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Nexperia USA Inc. 74HC245PW-Q100J
- Part No.:
- 74HC245PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC245PW-Q100J.pdf
- Description:
- IC TXRX NON-INVERT 6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,293
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Product details
Overview
74HC245PW-Q100 from Nexperia is an automotive-grade octal 3-state bidirectional bus transceiver in TSSOP20 package, operating from 2.0 V to 6.0 V supply, with direction control (DIR), active-low output enable (OE), and CMOS-level inputs. It enables data flow between two 8-bit buses in automotive body control modules, infotainment interconnects, and ADAS sensor interface subsystems.
For engineers reviewing the 74HC245PW-Q100 datasheet, 74HC245PW-Q100 pinout, 74HC245PW-Q100 application, or 74HC245PW-Q100 equivalent, key selection considerations include its AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), 9 ns typical propagation delay at 4.5 V, 30 pF power dissipation capacitance, and TSSOP20 package with 0.65 mm pitch for space-constrained PCB layouts.
Technical Context
This device implements a non-inverting 8-bit bidirectional data path controlled by DIR and OE signals: DIR selects data flow direction (A→B or B→A), while OE (active LOW) places all outputs in high-impedance state. Inputs feature integrated clamp diodes enabling safe interfacing to voltages exceeding VCC via current-limiting resistors.
It complies with JEDEC standards JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V), supports TTL-level input compatibility in the 74HCT variant, and delivers latch-up immunity >100 mA per JESD78 Class II Level B with HBM ESD rating >2000 V and CDM >1000 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - Enables interoperability across 3.3 V and 5 V automotive subsystems without level shifters. |
| Propagation Delay (tpd) | 9 ns typ. at VCC = 4.5 V - Supports reliable 50+ MHz bus operation in real-time vehicle networks. |
| Output Drive Strength | ±7.8 mA at VCC = 4.5 V - Sufficient to drive 15 pF loads over 10 cm traces in distributed ECUs. |
| Input Clamping Current | ±20 mA - Allows direct connection to higher-voltage domains using external series resistors. |
| Power Dissipation Capacitance (CPD) | 30 pF - Used to calculate dynamic power: PD = CPD × VCC² × fi × N, critical for thermal budgeting in sealed modules. |
| Ambient Temperature Range | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted applications. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets automotive assembly and handling robustness requirements. |
Pinout & Package
TSSOP20 (SOT360-1) package: plastic thin shrink small outline, 20 leads, 4.4 mm body width, 0.65 mm lead pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DIR) | Direction Control Input | Active-HIGH signal selecting data flow direction: HIGH = A→B, LOW = B→A. |
| 2–9 (A0–A7) | Port A Data I/O | 8-bit bidirectional bus port; driven by external source when DIR/OE enable A→B path. |
| 10 (GND) | Ground Reference | 0 V reference for all voltage measurements and noise return path for switching currents. |
| 11–18 (B0–B7) | Port B Data I/O | 8-bit bidirectional bus port; mirrors A-port behavior based on DIR state and OE activation. |
| 19 (OE) | Output Enable Input | Active-LOW control: LOW enables outputs, HIGH forces all A/B pins into high-impedance state. |
| 20 (VCC) | Supply Voltage | Primary power rail; must be decoupled locally with ≥100 nF ceramic capacitor near pin 20. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for automotive use from -40 °C to +125 °C ambient, supporting engine bay and powertrain integration. |
| Clamp Diode-Protected Inputs | Enables safe interface to 12 V or 24 V domains using simple series resistors-no external protection required. |
| Non-Inverting 3-State Outputs | Eliminates bus contention during multi-master arbitration; prevents signal corruption when multiple transceivers share one bus. |
| Low Dynamic Power Consumption | CPD = 30 pF allows <1 mW dynamic power at 10 MHz with 5 V supply and 10 pF load-critical for low-power gateway modules. |
| JEDEC-Compliant Pinout | Matches industry-standard 74-series layout, enabling drop-in replacement in legacy designs without PCB rework. |
Applications
| Body Control Module (BCM) Bus Isolation | Infotainment Head Unit Expansion Interface |
|---|---|
Use Scenario: Isolating LIN or CAN sub-bus segments from main MCU domain to prevent fault propagation and reduce EMC coupling. IC Role / Device Role / Timing Role: Bidirectional data bridge between microcontroller GPIO bank and peripheral cluster, with DIR set statically and OE controlled dynamically for bus arbitration. Use Value: Enables hot-plug capability for accessory modules while maintaining signal integrity across 20 cm trace lengths at 1 Mbps. | Use Scenario: Extending parallel address/data bus from SoC to external display controller or audio codec in head unit design. IC Role / Device Role / Timing Role: Octal transceiver buffering and direction management between 3.3 V SoC and 5 V legacy display driver IC. Use Value: Eliminates need for discrete level shifters; 9 ns tpd ensures setup/hold timing compliance at 25 MHz pixel clock rates. |
| Rear Camera Sensor Interface | ADAS Radar Preprocessor Interconnect |
Use Scenario: Connecting MIPI CSI-2 bridge IC to image signal processor in rear-view camera module with EMI-sensitive analog video path. IC Role / Device Role / Timing Role: Signal isolator and voltage translator between 1.8 V sensor interface logic and 3.3 V ISP domain, leveraging clamp diodes for transient suppression. Use Value: Reduces board area by 40% vs. dual discrete level shifter solution; TSSOP20 footprint fits within 8 mm × 6 mm camera housing constraint. | Use Scenario: Interfacing radar signal processor FPGA to microcontroller-based safety monitor in forward collision warning system. IC Role / Device Role / Timing Role: High-reliability data conduit for diagnostic status words and configuration commands, with OE synchronized to watchdog timeout events. Use Value: AEC-Q100 qualification ensures functional safety compliance up to ASIL-B; 125 °C operation supports placement near radar RF front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT245PW-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and timing; same package and temp range. | Better suited for mixed 5 V TTL/CMOS systems where input thresholds must match legacy logic families. | Select when interfacing with older 5 V microcontrollers or FPGAs lacking CMOS-compatible input thresholds. |
| SN74LVC245APWR | 3.3 V only (1.65–3.6 V), lower VCC max, 3.5 ns tpd at 3.3 V, different pinout (SOIC-20 vs TSSOP-20). | Optimized for low-voltage portable and ADAS vision processors; not AEC-Q100 qualified. | Choose only for non-automotive, 3.3 V-only designs requiring faster speed and lower power-not for automotive production. |
Compared with 74HC245PW-Q100, the 74HCT245PW-Q100 offers guaranteed TTL input compatibility at 5 V but shares identical packaging and automotive qualification, whereas SN74LVC245APWR trades AEC-Q100 compliance and wide VCC range for higher speed and lower voltage operation in consumer-grade applications.
Availability
74HC245PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment expansion interfaces, and ADAS sensor interconnects requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC245PW-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 74HC245-Q100 product line delivers AEC-Q100-qualified, high-speed octal transceivers optimized for robust bidirectional data routing in harsh automotive environments, emphasizing signal integrity, thermal resilience, and long-term supply stability.
FAQ
Can 74HC245PW-Q100 operate at 2.5 V supply?
Yes. The device is fully specified from 2.0 V to 6.0 V per JEDEC JESD7A. At 2.5 V, VIH is 1.75 V min and VOL is ≤0.26 V at 6.0 mA sink, supporting reliable interfacing with 2.5 V logic families. Propagation delay increases to 25 ns typ., suitable for ≤20 MHz bus operation.
What is the function of the exposed pad on the TSSOP20 package?
The exposed pad in SOT360-1 is a mechanical thermal enhancement feature with no electrical connection. It is not tied to GND or VCC. When soldered, it must remain electrically floating or be connected to GND via a dedicated thermal land-never left as a floating metal island to avoid parasitic coupling.
How does the DIR pin behave during power-up?
DIR has no internal pull-up or pull-down; it is undefined at power-on until externally biased. To prevent bus contention, tie DIR to a known state (e.g., via 10 kΩ resistor to VCC or GND) before VCC reaches 1.5 V, or hold OE HIGH until initialization completes. This avoids unintended data flow during reset sequencing.
Is there a recommended PCB layout for minimizing crosstalk?
Yes. Route A0–A7 and B0–B7 as matched-length differential pairs only if used for high-speed signaling; otherwise, separate them with ground guard traces. Place 100 nF X7R ceramic decoupling capacitors within 3 mm of pin 20 (VCC) and pin 10 (GND). Avoid routing DIR or OE across noisy power planes-use dedicated quiet routing layers with local ground stitching vias every 10 mm.
74HC245PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74HC245PW-Q100J FAQ
1.How can I place an order for 74HC245PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC245PW-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 74HC245PW-Q100J reliable?
The price and inventory of 74HC245PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC245PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC245PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC245PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC245PW-Q100J?
74HC245PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC245PW-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 74HC245PW-Q100J?
For technical support, including 74HC245PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC245PW-Q100J requirements.
6.How does Aetrix verify that 74HC245PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC245PW-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 74HC245PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC245PW-Q100J?
All 74HC245PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC245PW-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 74HC245PW-Q100J part is unused and in its original packaging.
Return procedure for 74HC245PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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