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Nexperia USA Inc. 74LVT244APW-Q100J
- Part No.:
- 74LVT244APW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVT244APW-Q100J.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,847
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Product details
Overview
74LVT244APW-Q100 from Nexperia is an AEC-Q100 Grade 3 qualified 3.3 V octal 3-state buffer/line driver in TSSOP20 package, featuring dual output enables (1OE, 2OE), ±64 mA/−32 mA drive capability, and 5.5 V overvoltage-tolerant inputs-designed for automotive bus interface applications including CAN/LIN subsystem data routing and ECU I/O expansion.
For engineers reviewing the 74LVT244APW-Q100 datasheet, 74LVT244APW-Q100 pinout, 74LVT244APW-Q100 application, or 74LVT244APW-Q100 equivalent, key selection criteria include its −40 °C to +85 °C automotive temperature range, bus-hold inputs eliminating external pull-ups, IOFF partial power-down mode, and compatibility with TTL-level logic in mixed-voltage systems.
Technical Context
This BiCMOS octal buffer implements two independent 4-bit groups, each controlled by a dedicated active-low output enable (1OE for Y0–Y3, 2OE for Y0–Y3), enabling selective bus isolation without propagation delay penalties. Its input structure supports live insertion/extraction and tolerates 5.5 V inputs while operating from 2.7 V to 3.6 V VCC.
The device integrates bus-hold circuitry on all data inputs (1A0–1A3, 2A0–2A3), maintaining valid logic states during high-impedance conditions, and features IOFF protection that disables output leakage when VCC = 0 V-critical for hot-swap and power sequencing in automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Enables stable operation across automotive battery transients and LDO tolerance bands. |
| IOH/IOL | −32 mA / +64 mA - Drives heavy capacitive loads (e.g., 15 cm PCB traces) while maintaining VOL ≤ 0.55 V at 64 mA. |
| tPLH/tPHL | 1 ns to 4.1 ns (VCC = 3.0–3.6 V) - Supports >200 MHz bus toggle rates with deterministic timing margins. |
| Input Voltage Tolerance | −0.5 V to +5.5 V - Allows direct interfacing with 5 V legacy controllers without level shifters. |
| Operating Temperature | −40 °C to +85 °C - Qualified per AEC-Q100 Grade 3 for under-hood and cabin ECU deployment. |
| Bus-Hold Current | ±75 μA to ±150 μA - Holds unused inputs at valid logic levels, removing need for 10 kΩ external pull resistors. |
| IOFF Leakage | ±100 μA (VCC = 0 V) - Prevents back-driving of powered-down buses during partial system sleep modes. |
Pinout & Package
TSSOP20 package (SOT360-1), 4.4 mm body width, 0.65 mm pitch, side-wettable flanks for AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enables - independently disable Group 1 (pins 12,14,16,18) or Group 2 (pins 3,5,7,9). |
| 2,4,6,8 | 1A0–1A3 | Data inputs for first buffer group - feature bus-hold and 5.5 V tolerant inputs. |
| 11,13,15,17 | 2A0–2A3 | Data inputs for second buffer group - identical electrical behavior to 1A0–1A3. |
| 12,14,16,18 | 1Y0–1Y3 | 3-state outputs for Group 1 - sink up to 64 mA or source up to 32 mA. |
| 3,5,7,9 | 2Y0–2Y3 | 3-state outputs for Group 2 - electrically isolated from Group 1; share no internal coupling. |
| 10 | GND | Ground reference - low-inductance return path for all I/O and supply currents. |
| 20 | VCC | 3.3 V supply - decoupling capacitor required within 5 mm for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 3 qualification | Validated for automotive use across −40 °C to +85 °C ambient, including thermal cycling and humidity testing. |
| BiCMOS output stage | Combines bipolar speed and CMOS low static power - achieves 4.1 ns max propagation delay with <0.19 mA ICC supply current. |
| IOFF partial power-down | Outputs enter high-Z and leakage drops to ±100 μA when VCC = 0 V - prevents backfeed during hot-swap or battery disconnect. |
| Overvoltage-tolerant inputs | Accepts 0 V to 5.5 V signals regardless of VCC state - enables interoperability with 5 V microcontrollers and sensors. |
| Bus-hold on all inputs | Eliminates external pull-up/pull-down resistors - reduces BOM count and PCB area in space-constrained ECUs. |
Applications
| Body Control Module (BCM) I/O Expansion | Instrument Cluster Display Interface |
|---|---|
Use Scenario: Expanding GPIO count of an 8-bit MCU to drive 16 discrete loads (LEDs, relays, sensors) in a vehicle BCM. IC Role / Device Role / Timing Role: Octal buffer isolating MCU pins from noisy 12 V loads; dual OE allows staggered activation to limit inrush current. Use Value: Bus-hold maintains safe default states during MCU reset; IOFF prevents backfeed when MCU is unpowered but 12 V loads remain active. |
Use Scenario: Level-shifting and buffering SPI or parallel data between a 3.3 V SoC and 5 V segment LCD driver in digital instrument clusters. IC Role / Device Role / Timing Role: 3-state line driver enabling bidirectional bus sharing; 4.1 ns propagation ensures timing compliance with 20 MHz display update clocks. Use Value: 5.5 V input tolerance eliminates external level translators; TSSOP20 footprint fits tight layout constraints near display connectors. |
| Powertrain Sensor Signal Conditioning | ADAS Camera Module Interface |
Use Scenario: Buffering analog sensor reference voltages and digital status flags (e.g., knock sensor, O2 heater control) in engine control units. IC Role / Device Role / Timing Role: Low-noise, high-drive buffer isolating sensitive analog references from digital switching noise on shared PCB layers. Use Value: ±64 mA drive sustains signal integrity over 10 cm traces; −40 °C to +85 °C rating matches under-hood thermal requirements. |
Use Scenario: Isolating MIPI CSI-2 clock/data lanes or parallel camera interface signals between image sensor and host processor in surround-view systems. IC Role / Device Role / Timing Role: 3-state bus driver enabling dynamic reconfiguration of camera sensor selection without signal contention. Use Value: Dual OE permits independent gating of two 4-bit lanes; tPZL ≤ 5.2 ns ensures clean enable/disable transitions below 100 MHz pixel clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVTH244APW-Q100 | Higher drive strength: −64 mA / +64 mA (symmetric); slightly higher ICC (0.19 mA vs 0.13 mA) | Better suited for driving heavier capacitive loads (e.g., >100 pF buses) where symmetric sourcing/sinking is required | Select when load requires equal HIGH/LOW drive or when margin against VOL/VOH degradation is critical |
| SN74LVC244APWR | Non-automotive grade; rated −40 °C to +125 °C but not AEC-Q100 qualified; lower drive (−24 mA / +24 mA) | Applicable in industrial or consumer designs where automotive qualification is unnecessary | Choose for cost-sensitive non-automotive applications with lighter bus loads and no functional safety requirements |
Compared with 74LVTH244APW-Q100, this part trades symmetric drive for lower static current and tighter VOL spec; versus SN74LVC244APWR, it adds AEC-Q100 qualification and 2.6× higher drive-justifying its use in safety-critical automotive signal routing where reliability outweighs cost.
Availability
74LVT244APW-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster interfaces, powertrain sensor conditioning, and ADAS camera module designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVT244APW-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 logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile applications-with emphasis on reliability, efficiency, and AEC-Q100 compliance.
This device belongs to Nexperia's LVT/LVTH automotive logic family, engineered specifically for robust 3.3 V bus interfacing in harsh automotive environments where signal integrity, thermal resilience, and long-term supply stability are mandatory.
FAQ
Can 74LVT244APW-Q100 be used with a 5 V microcontroller without level shifters?
Yes. Its inputs tolerate −0.5 V to +5.5 V regardless of VCC voltage, allowing direct connection to 5 V logic outputs. The device operates from 2.7 V to 3.6 V VCC, so a 3.3 V supply must be provided-but no external level translation is needed for input signals.
What is the purpose of the IOFF feature, and how does it behave during power-down?
IOFF disables output leakage when VCC = 0 V, limiting current to ±100 μA even if outputs are pulled to 5 V. This prevents back-driving powered-down sections of a system-essential for hot-swap capable ECUs and modules undergoing partial power cycling in modern vehicle architectures.
How does the bus-hold function eliminate external pull-up resistors?
Each input has integrated weak keeper circuitry providing ±75 μA to ±150 μA holding current. When an input floats, bus-hold drives it to the last valid logic state (HIGH or LOW), maintaining defined logic levels without 10 kΩ external resistors-reducing component count and board space in dense automotive PCBs.
Is the TSSOP20 package (SOT360-1) compatible with automated optical inspection (AOI)?
Yes. The SOT360-1 package features side-wettable flanks-vertical sidewalls with exposed copper-enabling reliable AOI detection of solder joint quality on both top and side surfaces. This supports zero-defect manufacturing requirements in automotive electronics assembly lines.
74LVT244APW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74LVT244APW-Q100J FAQ
1.How can I place an order for 74LVT244APW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT244APW-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 74LVT244APW-Q100J reliable?
The price and inventory of 74LVT244APW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT244APW-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVT244APW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT244APW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVT244APW-Q100J?
74LVT244APW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT244APW-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 74LVT244APW-Q100J?
For technical support, including 74LVT244APW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT244APW-Q100J requirements.
6.How does Aetrix verify that 74LVT244APW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVT244APW-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 74LVT244APW-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVT244APW-Q100J?
All 74LVT244APW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT244APW-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 74LVT244APW-Q100J part is unused and in its original packaging.
Return procedure for 74LVT244APW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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