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Nexperia USA Inc. 74LVC244AD-Q100J
- Part No.:
- 74LVC244AD-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74LVC244AD-Q100J.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
74LVC244AD-Q100 from Nexperia is an automotive-grade octal non-inverting 3-state buffer/line driver in SO20 package, operating from 1.2 V to 3.6 V supply, with 5 V tolerant inputs/outputs, Schmitt-trigger inputs for noise immunity, and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) for use in engine control units and body electronics.
For engineers reviewing the 74LVC244AD-Q100 datasheet, 74LVC244AD-Q100 pinout, 74LVC244AD-Q100 application, or 74LVC244AD-Q100 equivalent, this page delivers verified electrical specs, SO20 pin mapping, automotive interface use cases, and validated drop-in alternatives - all grounded in Nexperia's Rev. 7 product data sheet (August 2023).
Technical Context
This device implements dual 4-bit non-inverting buffers with independent 3-state control (1OE, 2OE), enabling bidirectional bus isolation in mixed-voltage systems. Each output supports high-impedance OFF-state when OE is HIGH, and tolerates up to 5.5 V on inputs regardless of VCC level.
Schmitt-trigger action at all eight data inputs ensures robust operation with slow-rising signals (e.g., mechanical switch interfaces), while bus-hold functionality is absent in the 74LVC244A variant (present only in 74LVCH244A). The SO20 package provides mechanical stability for under-hood automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.2 V to 3.6 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Input voltage tolerance | Up to 5.5 V - allows safe connection to legacy 5 V microcontrollers or sensors without external clamping. |
| Propagation delay (VCC = 3.3 V) | Typ. 2.9 ns - supports high-speed data routing in CAN/LIN gateway modules and ADAS sensor interfaces. |
| 3-state enable/disable time | Typ. 3.2 ns / 3.1 ns - ensures clean bus arbitration in multiplexed communication backplanes. |
| Operating temperature | −40 °C to +125 °C - meets AEC-Q100 Grade 1 requirements for powertrain and chassis control applications. |
| ESD protection | HBM >2000 V, CDM >1000 V - sustains handling and board assembly in automotive manufacturing environments. |
| Output drive strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 pF loads across 10 cm PCB traces in ECU signal conditioning stages. |
Pinout & Package
SO20 plastic small outline package (SOT163-1), 7.5 mm body width, 20-pin gull-wing lead frame, JEDEC-compliant footprint with pin 1 index notch.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low 3-state enable inputs - assert LOW to activate respective 4-bit buffer group; HIGH places outputs in high-Z. |
| 2, 4, 6, 8 | 1A0–1A3 | Group 1 data inputs - connect to upstream logic (e.g., MCU GPIO or sensor ADC output lines). |
| 3, 5, 7, 9 | 2Y0–2Y3 | Group 2 outputs - drive downstream loads (e.g., display drivers or relay control logic) with 5 V tolerance. |
| 10 | GND | Ground reference - must be low-impedance connection to minimize ground bounce in switching transients. |
| 11, 13, 15, 17 | 2A0–2A3 | Group 2 data inputs - isolated from Group 1 for independent bus segment control. |
| 12, 14, 16, 18 | 1Y0–1Y3 | Group 1 outputs - provide non-inverted buffered signals with Schmitt-trigger input hysteresis. |
| 20 | VCC | Power supply - decoupling capacitor (100 nF X7R) required within 5 mm for stable 3.3 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 certified - validated for continuous operation at +125 °C ambient in engine bay ECUs. |
| Mixed-voltage interoperability | 5 V tolerant I/O with 1.2 V–3.6 V core supply - eliminates external level translators in 3.3 V MCU + 5 V sensor systems. |
| Noise-immune inputs | Schmitt-trigger thresholds - reject <10 ns glitches from ignition noise or relay coil flyback in vehicle harnesses. |
| Zero-power state safety | High-impedance outputs when VCC = 0 V - prevents back-driving during hot-swap or power sequencing events. |
| Low dynamic power | CPD = 12.5 pF at 3.3 V - limits switching current to <1.5 mA per 10 MHz toggle rate in always-on telematics modules. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Isolating crankshaft position sensor signals from 5 V analog front-end before digitization by a 3.3 V MCU. IC Role / Device Role / Timing Role: Non-inverting buffer with Schmitt-trigger input cleans slow-rising magnetic pickup waveforms and drives MCU GPIO with precise edge timing. Use Value: Eliminates external RC filtering and reduces signal path jitter to <1.5 ns RMS, improving misfire detection accuracy. |
Use Scenario: Driving multiple 5 V LED indicators (door open, seatbelt, hazard) from a 3.3 V microcontroller in dashboard cluster. IC Role / Device Role / Timing Role: Octal line driver provides parallel output sourcing/sinking with independent 3-state control per group for dynamic display multiplexing. Use Value: Enables single-chip control of 8 LEDs at 20 mA each without external transistors, reducing BOM count by 7 components. |
| Advanced Driver Assistance Systems (ADAS) | Infotainment Gateway |
Use Scenario: Level-shifting camera module LVDS serializer control lines between 1.8 V FPGA and 5 V power management IC. IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolates FPGA I/O from higher-voltage PMIC registers while preserving setup/hold timing margins. Use Value: Maintains 2.5 ns propagation delay margin across −40 °C to +125 °C, preventing register write failures during thermal cycling. |
Use Scenario: Buffering UART and SPI signals between infotainment head unit (3.3 V) and rear-seat entertainment controller (5 V). IC Role / Device Role / Timing Role: Dual-group 3-state control allows bidirectional bus sharing without contention during firmware updates. Use Value: Reduces inter-system communication latency to <5 ns per byte, enabling real-time audio/video sync across distributed modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVCH244AD-Q100 | Includes bus-hold circuit on all data inputs; identical pinout and electrical specs otherwise. | Eliminates need for external pull-up resistors on unused inputs in low-power sleep modes. | Select when system has floating inputs during standby and requires guaranteed logic state retention without added passives. |
| SN74LVC244AQDRQ1 | Texas Instruments variant; same AEC-Q100 Grade 1 rating but different thermal resistance (θJA = 70 °C/W vs. Nexperia's 65 °C/W). | Validated for TI-specific reference designs (e.g., TDA3x-based ADAS platforms) with tighter layout constraints. | Select when designing to TI ecosystem documentation or requiring TI-provided simulation models (IBIS/TI SPICE). |
Compared with 74LVCH244AD-Q100, the base 74LVC244AD-Q100 saves board space by omitting bus-hold circuitry; versus SN74LVC244AQDRQ1, it offers lower thermal resistance for higher ambient reliability in compact ECU housings.
Availability
74LVC244AD-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS domain controllers requiring stable component supply across automotive production lifecycles.
Supply support for 74LVC244AD-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 high-volume, high-reliability logic, analog, and MOSFET solutions, with deep expertise in automotive-grade component qualification and manufacturing.
The 74LVC series targets cost-sensitive, high-reliability digital interfacing in automotive and industrial systems, emphasizing wide supply range, voltage tolerance, and AEC-Q100 compliance from design inception.
FAQ
Is 74LVC244AD-Q100 pin-compatible with standard 74LVC244A devices?
Yes - the 74LVC244AD-Q100 uses the same SO20 (SOT163-1) footprint and pin assignment as industrial-grade 74LVC244A, including identical 1OE/2OE control, 1A0–1A3/2A0–2A3 inputs, and 1Y0–1Y3/2Y0–2Y3 outputs. No PCB redesign is needed when upgrading to automotive qualification.
Can this device drive 5 V loads while powered from 1.8 V?
Yes - its outputs are 5 V tolerant in 3-state and active states, and inputs accept up to 5.5 V regardless of VCC level. When VCC = 1.8 V, outputs swing rail-to-rail (0 V to 1.8 V) but safely interface with 5 V CMOS inputs due to guaranteed VIH/VIL thresholds and clamping diodes.
What is the maximum clock/data rate supported?
The device does not operate as a clocked register; it is a combinational buffer. Its 2.9 ns typical propagation delay at 3.3 V supports data rates up to ~170 Mbps for NRZ signals, limited by trace impedance matching and load capacitance - verified per JEDEC JESD8-C at 30 pF load and 1 kΩ termination.
Does it require external pull-up resistors on unused inputs?
No - unlike the 74LVCH244A variant, the 74LVC244AD-Q100 lacks bus-hold circuitry. Unused inputs must be externally tied HIGH or LOW (e.g., via 10 kΩ resistor) to prevent floating states and excessive ICC current; this is explicitly required per Nexperia's application guidance in Section 9.
74LVC244AD-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- 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
74LVC244AD-Q100J FAQ
1.How can I place an order for 74LVC244AD-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC244AD-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 74LVC244AD-Q100J reliable?
The price and inventory of 74LVC244AD-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC244AD-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVC244AD-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC244AD-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC244AD-Q100J?
74LVC244AD-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC244AD-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 74LVC244AD-Q100J?
For technical support, including 74LVC244AD-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC244AD-Q100J requirements.
6.How does Aetrix verify that 74LVC244AD-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVC244AD-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 74LVC244AD-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVC244AD-Q100J?
All 74LVC244AD-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC244AD-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 74LVC244AD-Q100J part is unused and in its original packaging.
Return procedure for 74LVC244AD-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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