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Nexperia USA Inc. 74HCT240PW-Q100,11
- Part No.:
- 74HCT240PW-Q100,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT240PW-Q100,11.pdf
- Description:
- IC BUFFER INVERT 5.5V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
74HCT240PW-Q100 from Nexperia is an automotive-qualified octal inverting 3-state buffer/line driver in TSSOP20 package, operating from 4.5 V to 5.5 V supply, delivering propagation delay ≤20 ns (VCC = 4.5 V, CL = 15 pF), ±6 mA output drive, and AEC-Q100 Grade 1 qualification (-40 °C to +125 °C) for engine control module signal conditioning.
For engineers reviewing the 74HCT240PW-Q100 datasheet, 74HCT240PW-Q100 pinout, 74HCT240PW-Q100 application, or 74HCT240PW-Q100 equivalent, key selection criteria include 3-state bus isolation timing, TTL-compatible input thresholds, automotive temperature range compliance, and TSSOP20 footprint compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 4-bit inverting buffers, each with dedicated active-low 3-state enable inputs (1OE, 2OE). Outputs enter high-impedance OFF-state when respective OE is HIGH, enabling bidirectional bus sharing without contention.
It uses silicon-gate CMOS technology with TTL-compatible input switching thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), ensuring interoperability with legacy LSTTL logic while maintaining CMOS power efficiency and noise immunity up to 400 mV typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - Ensures stable operation across automotive battery rail variations including cold-crank transients. |
| Propagation delay | 9 ns (typ) at VCC = 5.0 V, CL = 15 pF - Enables reliable 50 MHz bus signaling in CAN/LIN interface backplanes. |
| Output drive | ±6 mA at VCC = 4.5 V - Sufficient to drive 50 Ω transmission lines or fan-out to 10 LSTTL loads. |
| Input threshold | VIH = 2.0 V min, VIL = 0.8 V max - Matches standard TTL logic levels for seamless integration into mixed-technology systems. |
| Operating temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood ECU and ADAS sensor interface applications. |
| Power dissipation | 160 μA ICC max at VCC = 5.5 V, -40 °C to +125 °C - Supports low-quiescent-current designs in always-on vehicle networks. |
| ESD protection | HBM >2000 V, CDM >1000 V - Mitigates field-induced latch-up during assembly and service handling in production environments. |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-lead, body width 4.4 mm, pitch 0.65 mm, height 1.1 mm - optimized for automated optical inspection (AOI) and high-density automotive PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low 3-state enable inputs - assert HIGH to disable corresponding 4-bit buffer bank and isolate bus segments. |
| 2, 4, 6, 8 | 1A0–1A3 | Inverting data inputs for first buffer group - logic inversion occurs before output buffering and 3-state control. |
| 18, 16, 14, 12 | 1Y0–1Y3 | Inverting buffered outputs for first group - driven LOW when corresponding 1An is HIGH, high-Z when 1OE = HIGH. |
| 17, 15, 13, 11 | 2A0–2A3 | Inverting data inputs for second buffer group - electrically isolated from first group for dual-bus management. |
| 3, 5, 7, 9 | 2Y0–2Y3 | Inverting buffered outputs for second group - supports independent enable/disable of parallel data paths. |
| 10 | GND | Ground reference (0 V) - must be connected to system ground plane for noise immunity and correct logic threshold referencing. |
| 20 | VCC | Positive supply rail - decoupling capacitor (100 nF ceramic) required within 5 mm for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for -40 °C to +125 °C operation with full parametric testing - eliminates need for additional qualification in Tier 1 automotive modules. |
| TTL-compatible input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - enables direct interfacing with legacy microcontrollers and discrete logic without level-shifting. |
| Low dynamic power consumption | CPD = 30 pF per buffer - reduces switching current in high-frequency bus applications, lowering thermal load on compact ECUs. |
| Side-wettable flanks (SWF) | Integrated into TSSOP20 package (SOT360-1) - enables automated X-ray and AOI verification of solder joint integrity for zero-defect automotive manufacturing. |
| High noise immunity | Typical noise margin >400 mV - suppresses false triggering from ignition noise, alternator ripple, and RF coupling in vehicle harnesses. |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Body Control Module (BCM) Bus Isolation |
|---|---|
|
Use Scenario: Buffering and isolating sensor signals (e.g., crankshaft position, camshaft timing) before ADC sampling in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Inverting 3-state buffer providing galvanic separation between noisy engine bay sensors and noise-sensitive analog front-end circuitry. Use Value: Prevents signal corruption during simultaneous CAN message transmission by enabling/disabling sensor data paths synchronously with communication windows. |
Use Scenario: Managing shared I²C or LIN bus lines between door modules, lighting controllers, and HVAC units in BCM architecture. IC Role / Device Role / Timing Role: Dual octal buffer enabling time-multiplexed access to common serial bus resources without hardware contention. Use Value: Eliminates need for external bus arbitration logic by allowing software-controlled activation of individual subsystem drivers on demand. |
| Advanced Driver Assistance Systems (ADAS) Camera Interface | Electric Power Steering (EPS) Motor Control Feedback |
|
Use Scenario: Level-shifting and buffering parallel pixel clock/data lines from image sensors to SoC MIPI CSI-2 bridge ICs in surround-view systems. IC Role / Device Role / Timing Role: High-speed inverting buffer preserving edge integrity of 25–50 MHz pixel clocks while supporting hot-plug detection via 3-state control. Use Value: Maintains <100 ps skew across 8-bit data lanes, meeting MIPI D-PHY timing budget for error-free frame capture at 30 fps. |
Use Scenario: Isolating Hall-effect sensor feedback signals from motor phase windings in EPS torque-sensing circuits. IC Role / Device Role / Timing Role: Noise-immune inverting buffer with fast enable/disable (≤30 ns) to synchronize sensor readout with PWM gate drive dead-time intervals. Use Value: Reduces position estimation jitter by >30% compared to direct sensor-to-MCU connection, improving steering assist linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HCT240QPWRQ1 | TI part with identical pinout, same AEC-Q100 Grade 1 rating, but higher ICC (200 μA max) and slower tpd (25 ns typ at VCC = 4.5 V). | Suitable for lower-speed body electronics where power budget allows extra 40 μA quiescent current. | Select when TI ecosystem alignment or existing TI design reuse outweighs 5 ns timing advantage. |
| 74HC240PW-Q100 | Nexperia variant with CMOS input thresholds (VIH = 3.15 V min), requiring 3.3 V or 5 V logic sources - not TTL-compatible. | Preferred in pure CMOS systems (e.g., 3.3 V MCU peripherals) where input voltage margins exceed 2.0 V. | Choose only if system guarantees VIH ≥ 3.15 V; avoid in mixed-voltage or legacy TTL environments. |
Compared with SN74HCT240QPWRQ1, this part delivers tighter propagation delay and lower ICC, making it superior for timing-critical engine control; versus 74HC240PW-Q100, its TTL-compatible inputs provide broader interoperability in heterogeneous automotive logic designs.
Availability
74HCT240PW-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera interfaces, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for 74HCT240PW-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 focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
This device belongs to Nexperia's automotive logic portfolio, designed specifically for robust signal buffering and bus isolation in harsh-temperature vehicle subsystems with stringent AEC-Q100 compliance requirements.
FAQ
What is the maximum output current per pin for 74HCT240PW-Q100?
The absolute maximum DC output current per pin is ±35 mA, but the recommended operating condition specifies ±6.0 mA at VCC = 4.5 V for guaranteed VOH ≥ 3.98 V and VOL ≤ 0.26 V. Exceeding ±6 mA may degrade output voltage margins or increase propagation delay beyond datasheet limits.
Can 74HCT240PW-Q100 operate at 3.3 V supply?
No - the 74HCT240PW-Q100 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH/VIL) and output drive capability fall outside guaranteed specifications; use 74HC240PW-Q100 instead for 2.0–6.0 V operation with CMOS-compatible inputs.
How does the 3-state enable logic function on this device?
Both 1OE (pin 1) and 2OE (pin 19) are active-low inputs: a LOW enables the corresponding 4-bit buffer group (1A0–1A3 or 2A0–2A3), while a HIGH forces all four outputs in that group into high-impedance state. This allows independent control of two 4-bit data paths on a shared bus.
Is thermal derating required for continuous operation at +125 °C?
Yes - for the TSSOP20 package (SOT360-1), total power dissipation derates linearly at 10.0 mW/K above +100 °C. At +125 °C, Ptot must be limited to 500 mW − (25 K × 10.0 mW/K) = 250 mW to prevent exceeding junction temperature limits and ensure long-term reliability.
74HCT240PW-Q100,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74HCT240PW-Q100,11 FAQ
1.How can I place an order for 74HCT240PW-Q100,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT240PW-Q100,11 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 74HCT240PW-Q100,11 reliable?
The price and inventory of 74HCT240PW-Q100,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT240PW-Q100,11 is usually 5 days.
3.What payment methods are accepted for 74HCT240PW-Q100,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT240PW-Q100,11 transactions.
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4.How is shipping managed for 74HCT240PW-Q100,11?
74HCT240PW-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT240PW-Q100,11 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 74HCT240PW-Q100,11?
For technical support, including 74HCT240PW-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT240PW-Q100,11 requirements.
6.How does Aetrix verify that 74HCT240PW-Q100,11 is sourced from the original manufacturer or authorized distributors?
All 74HCT240PW-Q100,11 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 74HCT240PW-Q100,11 meets industry standards.
7.What is the process for return or replacement of 74HCT240PW-Q100,11?
All 74HCT240PW-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT240PW-Q100,11, 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 74HCT240PW-Q100,11 part is unused and in its original packaging.
Return procedure for 74HCT240PW-Q100,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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