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Nexperia USA Inc. 74LVCH244AD-Q100J
- Part No.:
- 74LVCH244AD-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74LVCH244AD-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,154
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Product details
Overview
74LVCH244AD-Q100 from Nexperia is an automotive-grade octal non-inverting 3-state buffer/line driver with bus hold on all data inputs, 1.2 V to 3.6 V supply operation, 5.5 V tolerant inputs, and -40 °C to +125 °C temperature range. It enables level translation between 3.3 V and 5 V logic domains in automotive body control modules and infotainment interfaces.
For engineers reviewing the 74LVCH244AD-Q100 datasheet, 74LVCH244AD-Q100 pinout, 74LVCH244AD-Q100 application, or 74LVCH244AD-Q100 equivalent, this device is selected for mixed-voltage I/O buffering where bus hold eliminates external pull-ups, Schmitt-trigger inputs tolerate slow edges, and AEC-Q100 Grade 1 qualification ensures reliability in under-hood ECUs.
Technical Context
This device implements two independent 4-bit non-inverting buffer groups (1A0–1A3 and 2A0–2A3), each controlled by dedicated active-low output enable inputs (1OE, 2OE). Outputs enter high-impedance state when respective OE is HIGH, enabling shared-bus applications.
Schmitt-trigger input thresholds (VIH = 0.65VCC min, VIL = 0.35VCC max) provide hysteresis of ≥0.3V at VCC = 3.3 V, ensuring noise immunity with slow-rising signals. Bus hold circuitry sustains data input states with ±75 μA at VCC = 3.0 V, eliminating need for external biasing resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - supports low-power 1.2 V logic and interoperability with 3.3 V systems |
| Input Voltage Tolerance | Up to 5.5 V - allows direct connection to 5 V legacy peripherals without level shifters |
| Propagation Delay (tpd) | 1.5 ns to 7.5 ns - ensures timing compliance in high-speed digital buses up to 100 MHz |
| Bus Hold Current | ±75 μA at VCC = 3.0 V - actively maintains unused input states, removing need for external pull-up/down resistors |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for engine compartment and powertrain applications |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets automotive robustness requirements for handling and assembly |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 pF loads with <7.5 ns delay, supporting standard CMOS fan-out |
Pinout & Package
74LVCH244AD-Q100 uses SO20 (SOT163-1) package: plastic small outline, 20 leads, 7.5 mm body width, 1.27 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enable controls Group 1 and Group 2 outputs independently |
| 2, 4, 6, 8 | 1A0–1A3 | Data inputs for first buffer group; feature bus hold and Schmitt-trigger action |
| 3, 5, 7, 9 | 2Y0–2Y3 | Outputs for second buffer group; 5 V tolerant in 3-state mode |
| 10 | GND | Ground reference for all internal circuitry and I/O |
| 11, 13, 15, 17 | 2A0–2A3 | Data inputs for second buffer group; identical electrical behavior to 1A0–1A3 |
| 12, 14, 16, 18 | 1Y0–1Y3 | Outputs for first buffer group; support high-impedance state and 5 V tolerance |
| 20 | VCC | Primary power supply input; powers internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Bus hold on all data inputs | Eliminates external pull-up resistors on unused or floating inputs, reducing BOM count and PCB area |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis at 3.3 V supply, enabling reliable operation with slow-rising signals from sensors or mechanical switches |
| 5.5 V tolerant I/O | Allows direct interface with 5 V microcontrollers and legacy peripherals without external voltage translators |
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including thermal cycling and humidity testing |
| CMOS low-power operation | ICC ≤ 40 μA at VCC = 3.6 V and Tamb = +125 °C, minimizing standby current in always-on vehicle networks |
Applications
| Automotive Body Control Module | Infotainment System Interface |
|---|---|
Use Scenario: Isolating and buffering I/O lines between MCU and door/window actuator drivers in a centralized body controller. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control enables time-multiplexed access to shared diagnostic and sensor lines. Use Value: Bus hold prevents floating inputs during MCU reset; 5.5 V tolerance accommodates 5 V LIN transceivers and relay drivers. |
Use Scenario: Level-shifting between 3.3 V application processor and 5 V display backlight control ICs in head unit designs. IC Role / Device Role / Timing Role: Voltage-translating line driver with fast propagation (<7.5 ns) ensures timing alignment across mixed-supply subsystems. Use Value: Eliminates discrete level shifters; Schmitt-trigger inputs suppress noise from high-current display power rails. |
| Engine Control Unit (ECU) Sensor Hub | Advanced Driver Assistance Systems (ADAS) Camera Link |
Use Scenario: Consolidating analog sensor conditioning outputs (e.g., temperature, pressure) into a multiplexed digital bus for ECU ADC sampling. IC Role / Device Role / Timing Role: Octal buffer provides parallel signal conditioning and isolation before time-division multiplexing onto SPI or CAN-FD interface. Use Value: -40 °C to +125 °C operation matches ECU under-hood environment; low ICC reduces thermal load in sealed enclosures. |
Use Scenario: Driving high-capacitance camera module control lines (e.g., reset, clock enable) from a low-voltage SoC in surround-view systems. IC Role / Device Role / Timing Role: High-drive-strength (±24 mA) buffer ensures clean edge integrity on long PCB traces to camera connectors. Use Value: Output skew <1.5 ns guarantees simultaneous assertion of multi-camera synchronization signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC244AD-Q100 | No bus hold circuit; identical pinout, speed, and voltage specs | Requires external pull-up resistors on unused inputs; lower static power in idle state | Select when bus hold is unnecessary and board space for resistors is available |
| SN74LVC244AQDRQ1 | Texas Instruments part; same AEC-Q100 Grade 1 rating but no bus hold; slightly higher ICC (≤60 μA) | Compatible pinout and function but lacks Schmitt-trigger hysteresis on inputs | Prefer when TI supply chain alignment is required and input signal slew rates exceed 10 ns/V |
Compared with 74LVCH244AD-Q100, the 74LVC244AD-Q100 reduces static power but increases BOM complexity, while SN74LVC244AQDRQ1 trades input noise immunity for broader vendor availability-making the original optimal for cost-sensitive, noise-prone automotive I/O expansion.
Availability
74LVCH244AD-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment system interfaces, and engine control unit sensor hubs requiring stable component supply across extended temperature ranges.
Supply support for 74LVCH244AD-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 efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
This device belongs to Nexperia's automotive-qualified LVC/LVCH logic family, designed specifically for robust, low-power I/O interfacing in harsh-temperature vehicle subsystems with mixed-voltage architectures.
FAQ
Does 74LVCH244AD-Q100 support hot insertion?
No. While the device features 5.5 V tolerant inputs and high-impedance outputs, it lacks explicit hot-swap protection circuitry such as slew-rate limiting or back-drive prevention. Power sequencing must ensure VCC is stable before applying input signals or loading outputs to avoid latch-up or excessive current.
Can bus hold be disabled?
No. Bus hold is permanently enabled on all data inputs (1A0–1A3, 2A0–2A3) and cannot be disabled via control pins or configuration. It automatically deactivates only when input voltage exceeds VCC, allowing safe 5 V signal application without conflict.
What is the maximum capacitive load for guaranteed timing performance?
The dynamic characteristics table specifies test conditions using 30 pF (VCC ≤ 2.7 V) or 50 pF (VCC ≥ 3.0 V) loads. Propagation delay remains within datasheet limits up to 50 pF; beyond that, tpd increases linearly-e.g., +0.5 ns per additional 10 pF at VCC = 3.3 V.
Is the GND pad on SO20 package electrically connected?
No. Pin 10 (GND) is the sole functional ground terminal. The exposed thermal pad on the SO20 package (SOT163-1) has no electrical connection and may remain unsoldered or be floated; if soldered, it must not be tied to any voltage rail other than GND.
74LVCH244AD-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-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:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74LVCH244AD-Q100J FAQ
1.How can I place an order for 74LVCH244AD-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH244AD-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 74LVCH244AD-Q100J reliable?
The price and inventory of 74LVCH244AD-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH244AD-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVCH244AD-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH244AD-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH244AD-Q100J?
74LVCH244AD-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH244AD-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 74LVCH244AD-Q100J?
For technical support, including 74LVCH244AD-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH244AD-Q100J requirements.
6.How does Aetrix verify that 74LVCH244AD-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVCH244AD-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 74LVCH244AD-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVCH244AD-Q100J?
All 74LVCH244AD-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH244AD-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 74LVCH244AD-Q100J part is unused and in its original packaging.
Return procedure for 74LVCH244AD-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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