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Texas Instruments SN74ACT240QWRKSRQ1
- Part No.:
- SN74ACT240QWRKSRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
SN74ACT240QWRKSRQ1.pdf
- Description:
- AUTOMOTIVE EIGHT-CHANNEL 4.5V-TO
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SN74ACT240QWRKSRQ1 from Texas Instruments is an automotive-qualified octal inverting buffer/driver with 3-state outputs, organized as two independent 4-bit banks each controlled by a dedicated output-enable (OE) pin. It operates from 1.5V to 6V, delivers ±24mA continuous output drive at 5V, achieves 9.6ns max propagation delay into 50pF, and drives 50Ω transmission lines - used in automotive infotainment signal routing and ECU I/O expansion.
For engineers reviewing the SN74ACT240QWRKSRQ1 datasheet, SN74ACT240QWRKSRQ1 pinout, SN74ACT240QWRKSRQ1 application, or SN74ACT240QWRKSRQ1 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (-40°C to +125°C), wettable-flank VQFN-20 package for AOI-compatible solder joint inspection, balanced CMOS 3-state output architecture, TTL-compatible inputs, and verified 50Ω line driving capability under automotive thermal and ESD stress conditions.
Technical Context
The SN74ACT240QWRKSRQ1 implements dual independent 4-bit inverting buffers with separate OE1 and OE2 controls, enabling selective 3-state control per bank. Its balanced CMOS outputs support symmetrical ±24mA continuous sourcing/sinking at 5V and tolerate short-burst ±75mA loads without damage.
It features TTL-compatible CMOS inputs with VIH(min) = 2.0V and VIL(max) = 0.8V at 5V supply, clamp diodes on all I/O pins per AEC-Q100 requirements, and supports operation across 1.5V–6V supply range while maintaining logic thresholds and timing integrity - critical for mixed-voltage automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5V to 6V - enables interoperability with 3.3V, 5V, and mixed-rail automotive domains |
| Max Propagation Delay | 9.6ns at 5V/50pF - ensures timing compliance in high-speed bus buffering up to ~100MHz |
| Continuous Output Drive | ±24mA at 5V - sustains stable logic levels driving multiple CMOS loads or moderate PCB traces |
| Short-Burst Drive | ±75mA at 5V - handles transient line charging without latch-up or thermal shutdown |
| Input Voltage Tolerance | Up to 6V - allows interfacing with higher-voltage sensors or legacy systems without level shifters |
| ESD Rating (HBM) | ±2000V - meets AEC-Q100-002 Level 2 for robustness in automotive assembly and field environments |
| Operating Temperature | -40°C to +125°C (Grade 1) - qualified for under-hood and cabin ECU placement |
Pinout & Package
VQFN-20 (RKS) package with 4.5mm × 2.5mm body size, wettable flanks for automated optical inspection (AOI), and exposed thermal pad (connectable to GND or left floating).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-Low Output Enable | Independent control of Bank 1 (pins 2,4,6,8 → 18,16,14,12) and Bank 2 (pins 11,13,15,17 → 3,5,7,9) |
| 1A1–1A4, 2A1–2A4 | Inverting Input | Eight TTL-compatible CMOS inputs accepting 0–6V; each inverted and routed to corresponding Y output |
| 1Y1–1Y4, 2Y1–2Y4 | Inverting 3-State Output | Eight balanced CMOS outputs; high-impedance when OE = HIGH, driven LOW/HIGH when OE = LOW |
| VCC (Pin 20) | Power Supply | Single supply input supporting 1.5V–6V; decoupling capacitor required adjacent to pin |
| GND (Pin 10) | Ground Reference | Common return path for all I/O and supply currents; connects to thermal pad in RKS package |
| Thermal Pad | Thermal & Electrical Interface | Exposed copper pad beneath package - improves thermal dissipation and may be tied to GND for noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for -40°C to +125°C ambient operation with HBM ±2000V and CDM ±1000V ESD robustness |
| Wettable Flank QFN (RKS) | Enables reliable AOI-based solder joint inspection on automotive production lines |
| Dual Independent 3-State Banks | Allows concurrent or staggered bus isolation - e.g., isolate sensor interface while keeping display driver active |
| TTL-Compatible Inputs | Accepts standard 5V TTL logic levels without external biasing, simplifying legacy interface integration |
| 50Ω Transmission Line Driving | Supports clean signal integrity over >12cm PCB traces without external termination resistors |
Applications
| Automotive Infotainment Display Interface | Body Control Module (BCM) I/O Expansion |
|---|---|
Use Scenario: Routing and level-shifting video timing signals (HSYNC/VSYNC) between MCU and display driver IC in head-unit systems. IC Role / Device Role / Timing Role: Inverting buffer with 3-state control isolates display bus during MCU reconfiguration or sleep mode transitions. Use Value: 9.6ns max tPHL/tPLH ensures sub-pixel timing accuracy; ±24mA drive maintains signal integrity across 50Ω trace impedance. | Use Scenario: Expanding GPIO count for door lock actuators, mirror controls, and lighting drivers in centralized BCM designs. IC Role / Device Role / Timing Role: Octal buffer provides isolated, high-current drive for discrete FET gate control with independent bank enable for power sequencing. Use Value: Dual OE pins allow phased activation of load groups; wettable-flank RKS package ensures solder joint reliability in vibration-prone chassis mounting. |
| ADAS Camera Sensor Interface | Automotive Gateway ECU Signal Multiplexing |
Use Scenario: Buffering parallel pixel data lanes from image sensor to SoC in surround-view camera modules. IC Role / Device Role / Timing Role: High-speed inverting driver conditions signals for noise immunity and matches 50Ω source impedance to minimize reflections. Use Value: Supports >100MHz data rates via 9.6ns propagation delay; 5V operation aligns with sensor analog supply domains. | Use Scenario: Consolidating diagnostic, CAN transceiver status, and LIN bus control signals onto shared microcontroller pins. IC Role / Device Role / Timing Role: 3-state buffer enables bidirectional signal routing and prevents bus contention between gateway subsystems. Use Value: Independent OE control permits dynamic reconfiguration of signal paths without hardware changes; AEC-Q100 qualification ensures functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC240AQDRQ1 | Lower drive (±24mA @ 3.3V only); 1.65V–5.5V supply; no wettable flanks in SOIC/TSSOP | Targeted for lower-power 3.3V domains; lacks AOI-optimized packaging | Select when cost-sensitive 3.3V-only systems prioritize footprint over solder inspection capability |
| SN74AHC240QPWRQ1 | Higher speed (tPD = 6.1ns typ); same 2–5.5V range; TSSOP-20 only (no RKS option) | Better suited for timing-critical 5V backplanes; no wettable flank support limits automotive AOI use | Choose for maximum speed in non-AOI-restricted 5V applications where VQFN is not required |
Compared with SN74LVC240AQDRQ1 and SN74AHC240QPWRQ1, the SN74ACT240QWRKSRQ1 uniquely combines AEC-Q100 Grade 1 qualification, wettable-flank VQFN-20 packaging, and full 1.5V–6V operational flexibility - making it the only option qualified for high-reliability, AOI-verified, mixed-voltage automotive signal routing.
Availability
SN74ACT240QWRKSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment display interfaces, body control module I/O expansion, and ADAS camera sensor signal conditioning requiring stable component supply across extended temperature and high-reliability manufacturing environments.
Supply support for SN74ACT240QWRKSRQ1 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
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with deep expertise in automotive-grade IC design, AEC-Q100 qualification, and high-volume automotive supply chain execution.
The SN74ACT240QWRKSRQ1 belongs to TI's automotive logic portfolio, engineered specifically for robust signal buffering and bus isolation in harsh-temperature vehicle subsystems - emphasizing solder joint reliability, ESD resilience, and mixed-voltage interoperability.
FAQ
What is the maximum operating voltage for SN74ACT240QWRKSRQ1?
The SN74ACT240QWRKSRQ1 supports a supply voltage range of 1.5V to 6V, with absolute maximum ratings allowing VCC up to 7V. At 5V operation, it delivers ±24mA continuous output drive and maintains specified timing performance - making it suitable for both 3.3V and 5V automotive subsystems without level translation.
Does SN74ACT240QWRKSRQ1 support AEC-Q100 qualification, and what grade is it rated for?
Yes, SN74ACT240QWRKSRQ1 is AEC-Q100 qualified for automotive applications at Grade 1, covering an operating ambient temperature range of -40°C to +125°C. It also meets HBM ESD Level 2 (±2000V) and CDM ESD Level C4B (±1000V), satisfying stringent reliability requirements for under-hood and cabin ECUs.
What package type does SN74ACT240QWRKSRQ1 use, and why is it significant for automotive production?
SN74ACT240QWRKSRQ1 uses the RKS package - a 20-pin wettable-flank VQFN measuring 4.5mm × 2.5mm. The wettable flanks enable reliable automated optical inspection (AOI) of solder joints, a critical requirement for zero-defect automotive manufacturing and IPC-A-610 compliance in safety-critical assemblies.
How many independent 3-state control banks does SN74ACT240QWRKSRQ1 provide, and how are they configured?
SN74ACT240QWRKSRQ1 provides two independent 4-bit banks, each with its own active-low output-enable pin (1OE for Bank 1, 2OE for Bank 2). Bank 1 routes inputs 1A1–1A4 to outputs 1Y1–1Y4 (inverted), and Bank 2 routes 2A1–2A4 to 2Y1–2Y4 (inverted), enabling selective bus isolation without affecting the other bank.
Can SN74ACT240QWRKSRQ1 drive 50Ω transmission lines directly, and what design considerations apply?
Yes, SN74ACT240QWRKSRQ1 is explicitly characterized to drive 50Ω transmission lines. For optimal signal integrity, use series damping resistors near the driver output when trace lengths exceed 12cm, maintain ≤50pF total capacitive load, and ensure proper VCC/GND decoupling with a 0.1μF capacitor placed adjacent to Pin 20 and Pin 10 - as validated in TI's application curves and layout guidelines.
SN74ACT240QWRKSRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 20-VFQFN Exposed Pad
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 20-VQFN (2.5x4.5)
SN74ACT240QWRKSRQ1 FAQ
1.How can I place an order for SN74ACT240QWRKSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ACT240QWRKSRQ1 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 SN74ACT240QWRKSRQ1 reliable?
The price and inventory of SN74ACT240QWRKSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ACT240QWRKSRQ1 is usually 5 days.
3.What payment methods are accepted for SN74ACT240QWRKSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ACT240QWRKSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ACT240QWRKSRQ1?
SN74ACT240QWRKSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ACT240QWRKSRQ1 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 SN74ACT240QWRKSRQ1?
For technical support, including SN74ACT240QWRKSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ACT240QWRKSRQ1 requirements.
6.How does Aetrix verify that SN74ACT240QWRKSRQ1 is sourced from the original manufacturer or authorized distributors?
All SN74ACT240QWRKSRQ1 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 SN74ACT240QWRKSRQ1 meets industry standards.
7.What is the process for return or replacement of SN74ACT240QWRKSRQ1?
All SN74ACT240QWRKSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with SN74ACT240QWRKSRQ1, 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 SN74ACT240QWRKSRQ1 part is unused and in its original packaging.
Return procedure for SN74ACT240QWRKSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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