My Inquiry
My Account
Nexperia USA Inc. 74LVC244ABQ-Q100X
- Part No.:
- 74LVC244ABQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
74LVC244ABQ-Q100X.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,230
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVC244ABQ-Q100 from Nexperia is an automotive-grade octal non-inverting 3-state buffer/line driver in DHVQFN20 package, operating from 1.2 V to 3.6 V supply, with 5 V-tolerant inputs/outputs and Schmitt-trigger inputs for noise immunity. It supports mixed-voltage translation between 3.3 V and 5 V logic domains in engine control units and body electronics.
For engineers reviewing the 74LVC244ABQ-Q100 datasheet, 74LVC244ABQ-Q100 pinout, 74LVC244ABQ-Q100 application, or 74LVC244ABQ-Q100 equivalent, this device is selected for high-reliability automotive bus interfacing where voltage-level translation, low static current (<10 μA), and AEC-Q100 Grade 1 qualification (-40 °C to +125 °C) are mandatory.
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 pins (1OE, 2OE). Outputs enter high-impedance state when respective OE is HIGH, enabling bidirectional bus sharing without contention.
Schmitt-trigger inputs ensure robust operation with slow-rising signals (Δt/ΔV up to 20 ns/V at VCC = 1.2 V), while bus-hold functionality on data inputs (74LVCH244A variant) eliminates external pull-ups - though 74LVC244A-Q100 lacks bus hold per datasheet Table 6 footnotes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with modern low-voltage MCUs and legacy 3.3 V peripherals |
| Input Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V logic without level shifters |
| Propagation Delay (VCC = 3.3 V) | Max 5.9 ns - Supports >100 MHz bus timing in automotive CAN/LIN subsystems |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive 50 pF loads across PCB traces and connectors |
| Operating Temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood applications |
| ESD Protection | HBM >2000 V, CDM >1000 V - Robust handling during automated assembly and field service |
| Quiescent Supply Current | Max 40 μA at VCC = 3.6 V - Minimizes standby power in always-on vehicle modules |
Pinout & Package
DHVQFN20 package (SOT764-1), 2.5 × 4.5 × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection. Exposed thermal pad (GND-connected per datasheet note) enhances thermal performance in high-density automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y0–1Y3, 2Y0–2Y3 (Pins 12,14,16,18,3,5,7,9) | Buffered outputs (Group 1 & 2) | Non-inverting outputs with 3-state control; tolerate 5 V in high-Z mode |
| 1A0–1A3, 2A0–2A3 (Pins 2,4,6,8,17,15,13,11) | Data inputs (Group 1 & 2) | Schmitt-trigger inputs accept 0–5.5 V; no bus hold on 74LVC244A-Q100 variant |
| 1OE, 2OE (Pins 1, 19) | Active-low output enable | Independent control of each 4-bit group; HIGH forces outputs to high-Z |
| VCC (Pin 20) | Power supply | 1.2–3.6 V digital supply; decoupling required within 3 mm of pin |
| GND (Pin 10) | Ground reference | 0 V return path; thermal pad must be soldered and connected to GND plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including temperature cycling and HTOL |
| 5 V tolerant I/O | Inputs and outputs withstand 5.5 V regardless of VCC - enables seamless 3.3 V ↔ 5 V domain bridging |
| Schmitt-trigger inputs | Input hysteresis >0.3 V at VCC = 3.3 V - rejects noise on long harnesses in chassis-ground-noisy environments |
| Low dynamic power | CPD = 12.5 pF at VCC = 3.3 V - limits switching power to <1 mW at 10 MHz toggle rate |
| DHVQFN with side-wettable flanks | Enables automated optical inspection of solder joints - critical for zero-defect automotive manufacturing |
Applications
| Engine Control Unit (ECU) Interface | Body Control Module (BCM) Bus Buffer |
|---|---|
Use Scenario: Isolating microcontroller GPIOs from noisy solenoid drivers and sensor buses in powertrain ECUs. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control enables time-multiplexed access to shared diagnostic lines (e.g., K-line). Use Value: 5 V tolerance prevents damage from load-dump transients; Schmitt inputs reject ignition coil EMI. |
Use Scenario: Driving multiple LIN transceiver inputs from a single MCU port in door module assemblies. IC Role / Device Role / Timing Role: Octal line driver translates 3.3 V MCU outputs to 5 V LIN bus levels while providing fan-out gain. Use Value: ±24 mA drive strength ensures fast edge rates into 1 kΩ LIN bus termination; low ICC reduces sleep-current budget. |
| Advanced Driver Assistance Systems (ADAS) Camera Link | Infotainment Display Data Latch |
Use Scenario: Level-shifting parallel pixel data from image sensor (1.8 V) to FPGA-based video processor (3.3 V) in surround-view cameras. IC Role / Device Role / Timing Role: Voltage-translating buffer with sub-6 ns propagation delay preserves pixel clock timing integrity. Use Value: 1.2 V minimum VCC allows compatibility with ultra-low-power image sensors; 125 °C rating suits camera housing placement. |
Use Scenario: Latching RGB data from SoC to display timing controller in head-unit displays. IC Role / Device Role / Timing Role: 3-state octal buffer isolates display data bus during GPU reconfiguration cycles. Use Value: Independent 1OE/2OE control allows staggered latching of upper/lower nibbles; DHVQFN footprint saves space in tight bezel designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVCH244ABQ-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 BCM modules with floating switches | Select when input floating states must be actively held without board-level resistors |
| SN74LVC244AQDRQ1 | TSSOP20 package (SOT360-1); same logic function, AEC-Q100 Grade 1, but no side-wettable flanks | Better suited for manual rework or prototyping; lower thermal performance than DHVQFN in high-power density layouts | Select when AOI capability is not required and TSSOP handling preference exists |
Compared with 74LVCH244ABQ-Q100, the base 74LVC244ABQ-Q100 saves BOM cost by omitting bus-hold, while SN74LVC244AQDRQ1 trades thermal efficiency for assembly flexibility - choice depends on whether input stability or solder-joint inspection is the higher priority.
Availability
74LVC244ABQ-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera interfaces, and infotainment display latches requiring stable component supply across automotive production lifecycles.
Supply support for 74LVC244ABQ-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 automotive qualification expertise and ISO/TS 16949-certified manufacturing.
This device belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust signal buffering and voltage translation in harsh-temperature, safety-critical vehicle subsystems.
FAQ
Is the 74LVC244ABQ-Q100 pin-compatible with the 74LVCH244ABQ-Q100?
Yes - both share identical DHVQFN20 (SOT764-1) pinout, recommended operating conditions, and AC/DC specifications. The only functional difference is the presence of bus-hold circuitry on data inputs in the LVCH variant; control pins (OE, VCC, GND) and outputs behave identically.
Can this device drive a 5 V TTL input directly when powered from 3.3 V?
Yes - its outputs are 5 V tolerant in 3-state mode and deliver valid HIGH/LOW levels compatible with TTL thresholds when VCC = 3.3 V: VOH ≥ 2.2 V (IO = −24 mA), VOL ≤ 0.55 V (IO = 24 mA), satisfying TTL VIH ≥ 2.0 V and VIL ≤ 0.8 V requirements.
What is the maximum capacitive load this buffer can drive while maintaining timing specs?
Per datasheet Table 9, the device is characterized up to 50 pF load capacitance with RL = 500 Ω at VCC = 3.0–3.6 V. Propagation delay remains within spec (max 5.9 ns) under these conditions; exceeding 50 pF increases tpd nonlinearly and may violate setup/hold margins in high-speed buses.
Does the exposed thermal pad require soldering and grounding?
Yes - the datasheet specifies that the exposed pad (terminal 1 index area) must be soldered and electrically connected to the PCB's GND plane. This is mandatory for thermal dissipation and EMI suppression; leaving it unconnected degrades junction temperature rise by >25 °C/W and risks latch-up under transient stress.
74LVC244ABQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-VFQFN Exposed Pad
- 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-DHVQFN (4.5x2.5)
74LVC244ABQ-Q100X FAQ
1.How can I place an order for 74LVC244ABQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC244ABQ-Q100X 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 74LVC244ABQ-Q100X reliable?
The price and inventory of 74LVC244ABQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC244ABQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74LVC244ABQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC244ABQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC244ABQ-Q100X?
74LVC244ABQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC244ABQ-Q100X 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 74LVC244ABQ-Q100X?
For technical support, including 74LVC244ABQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC244ABQ-Q100X requirements.
6.How does Aetrix verify that 74LVC244ABQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74LVC244ABQ-Q100X 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 74LVC244ABQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74LVC244ABQ-Q100X?
All 74LVC244ABQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC244ABQ-Q100X, 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 74LVC244ABQ-Q100X part is unused and in its original packaging.
Return procedure for 74LVC244ABQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC244ABQ-Q100X Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
