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onsemi NLV74HC244ADWR2G
- Part No.:
- NLV74HC244ADWR2G
- Manufacturer:
- onsemi
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
NLV74HC244ADWR2G.pdf
- Description:
- IC BUFFER NON-INVERT 6V 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
NLV74HC244ADWR2G from onsemi is an octal 3-state noninverting buffer/line driver/line receiver in SOIC-20 wide-body package, operating from 2.0 V to 6.0 V, delivering ±7.8 mA output drive per channel with 15 LSTTL load capability and propagation delay as low as 15 ns at 6.0 V - used for bidirectional bus interfacing in industrial control backplanes and memory address buffering.
For engineers reviewing the NLV74HC244ADWR2G datasheet, pinout, applications, or equivalent options, key selection considerations include dual active-low output enables (Enable A, Enable B), high-noise-immunity CMOS inputs, 3-state output compatibility with TTL/NMOS/CMOS buses, and automotive-grade qualification under AEC-Q100.
Technical Context
The NLV74HC244ADWR2G implements two independent 4-bit noninverting buffer groups (A1–A4/YA1–YA4 and B1–B4/YB1–YB4), each controlled by a dedicated active-low enable (Pin 1 = Enable A, Pin 19 = Enable B). Its input structure is compatible with standard CMOS outputs and - with pullup resistors - with LSTTL outputs.
It features true 3-state outputs with leakage current ≤±10 µA at 125°C and supports operation across –55°C to +125°C. The device uses high-speed silicon-gate CMOS technology (136 FETs), complies with JEDEC Std No. 7A, and is Pb-free, halogen-free, and RoHS compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-backed industrial logic rails. |
| Output Drive Current | ±7.8 mA per output at VCC = 6.0 V - drives 15 LSTTL loads without external buffers. |
| Propagation Delay | 15 ns max (A→YA or B→YB, VCC = 6.0 V) - enables reliable timing in 33 MHz bus systems. |
| Input Leakage Current | ±1.0 µA max at 125°C - ensures stable logic levels in high-temperature environments. |
| 3-State Leakage | ±10 µA max at 125°C - minimizes bus contention current during high-impedance state. |
| Operating Temperature | –55°C to +125°C - qualified for under-hood automotive and extended industrial applications. |
| ESD Rating | >2000 V HBM - provides robust handling in automated assembly and field service. |
Pinout & Package
Package: SOIC-20 Wide Body (Case 751D), 12.95 mm × 7.60 mm × 2.65 mm, surface-mount, Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Enable A (active-low) | Enables YA1–YA4 outputs when low; disables them to high-impedance when high. |
| 2,4,6,8 | A1–A4 inputs | Noninverting data inputs for first 4-channel buffer group. |
| 3,5,7,9 | YB4–YB1 outputs | Noninverting outputs corresponding to B4–B1 inputs (pins 17,15,13,11). |
| 10 | GND | Ground reference for all I/O and internal circuitry. |
| 11,13,15,17 | B1–B4 inputs | Noninverting data inputs for second 4-channel buffer group. |
| 12,14,16,18 | YA4–YA1 outputs | Noninverting outputs corresponding to A4–A1 inputs (pins 8,6,4,2). |
| 19 | Enable B (active-low) | Enables YB1–YB4 outputs when low; disables them to high-impedance when high. |
| 20 | VCC | Positive supply rail (2.0–6.0 V) for logic core and I/O drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit enables | Separate Enable A (Pin 1) and Enable B (Pin 19) allow selective activation of YA or YB groups - critical for time-multiplexed bus arbitration. |
| High-noise-immunity CMOS inputs | VIH ≥ 3.15 V and VIL ≤ 1.35 V at VCC = 4.5 V - rejects >1.35 V noise spikes on industrial control lines. |
| Low quiescent supply current | ICC ≤ 160 µA max at 125°C - reduces standby power in always-on monitoring subsystems. |
| Automotive qualification | AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), PPAP-capable - meets OEM requirements for engine control and body electronics. |
| Bus-compatible 3-state outputs | Output leakage ≤±10 µA at 125°C and COUT = 15 pF - prevents signal corruption during hot-swap or multi-driver contention. |
Applications
| Industrial PLC Backplane | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating and driving address/data lines between microcontroller and multiple peripheral ICs on a DIN-rail mounted PLC backplane. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing level-shifting and bus contention control between 3.3 V MCU and 5 V legacy peripherals. Use Value: Dual enables allow staggered activation of memory-mapped I/O banks, reducing peak current draw and EMI during simultaneous access. |
Use Scenario: Interfacing a 5 V CAN transceiver and LIN slave controller to a 3.3 V microcontroller in a door module ECU. IC Role / Device Role / Timing Role: Bidirectional bus driver enabling shared diagnostic line routing while maintaining voltage domain isolation. Use Value: Guaranteed operation down to –40°C and up to +125°C junction temperature ensures reliability in sealed, heat-trapped cabin modules. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
|
Use Scenario: Buffering parallel sensor interface signals (e.g., ADC status flags, multiplexer selects) in portable ultrasound front-end boards. IC Role / Device Role / Timing Role: Low-propagation-delay noninverting driver ensuring synchronous sampling across 8-channel analog paths. Use Value: 15 ns max tPLH at 6.0 V enables precise timing alignment for sub-100 ns sampling windows in real-time beamforming. |
Use Scenario: Driving multiple DIP-switch configuration inputs and LED status indicators on benchtop oscilloscope mainboard. IC Role / Device Role / Timing Role: High-drive-strength line receiver translating mechanical switch closures into clean CMOS logic for FPGA configuration registers. Use Value: ±7.8 mA output drive eliminates need for discrete pull-up resistors, improving board density and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74HC244ADWR2G | Same die, identical electrical specs, but rated for commercial temperature range (–40°C to +85°C) only. | Lacks AEC-Q100 qualification and extended temperature support - unsuitable for under-hood or industrial outdoor use. | Select NLV74HC244ADWR2G when automotive or extended-temperature operation is required. |
| SN74HC244N | Dual-in-line package (PDIP-20), higher thermal resistance (JA = 70°C/W vs. 96°C/W), no automotive qualification. | Not suitable for surface-mount production or high-reliability thermal cycling environments. | Choose NLV74HC244ADWR2G for automated SMT assembly and thermal robustness in compact enclosures. |
Compared with MC74HC244ADWR2G and SN74HC244N, the NLV74HC244ADWR2G uniquely combines AEC-Q100 Grade 1 qualification, –55°C to +125°C operation, and SOIC-20W packaging - making it the only option validated for safety-critical automotive subsystems requiring long-term thermal stability and traceable sourcing.
Availability
NLV74HC244ADWR2G is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, medical diagnostic equipment, and test & measurement instrumentation requiring stable component supply across extended temperature ranges and automotive lifecycle management.
Supply support for NLV74HC244ADWR2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering high-performance silicon solutions for automotive, industrial, cloud, and medical markets.
The NLV74HC244ADWR2G belongs to onsemi's high-reliability HC logic family, designed specifically for robust bus interfacing in harsh-environment applications where extended temperature range and automotive qualification are mandatory.
FAQ
What is the maximum operating temperature for NLV74HC244ADWR2G?
The NLV74HC244ADWR2G is specified for operation from –55°C to +125°C junction temperature, with full electrical performance guaranteed across this range. It is AEC-Q100 Grade 1 qualified, meaning it meets automotive requirements for ambient temperatures up to +125°C in under-hood applications. This rating is confirmed in the "Recommended Operating Conditions" table of the official onsemi datasheet Rev. 18.
Does NLV74HC244ADWR2G support 3.3 V logic systems?
Yes, NLV74HC244ADWR2G operates reliably at 3.3 V supply (within its 2.0–6.0 V range), with VIH = 2.1 V and VIL = 0.9 V at VCC = 3.0 V - fully compatible with standard 3.3 V CMOS logic thresholds. Its inputs accept LSTTL levels when pullup resistors are used, and outputs drive 3.3 V CMOS loads directly without level-shifting circuitry.
How many independent enable controls does NLV74HC244ADWR2G have?
The NLV74HC244ADWR2G has two independent active-low output enables: Enable A (Pin 1) controls YA1–YA4, and Enable B (Pin 19) controls YB1–YB4. This allows separate gating of the two 4-bit buffer groups - essential for time-division multiplexing, bus arbitration, or power-gated peripheral control in systems like industrial backplanes or automotive ECUs.
Is NLV74HC244ADWR2G pin-compatible with standard 74LS244 devices?
Yes, NLV74HC244ADWR2G is pinout-identical to the 74LS244, as explicitly stated in the onsemi datasheet: "The MC74HC244A is identical in pinout to the LS244." This enables direct drop-in replacement in legacy designs, preserving PCB layout while upgrading to lower power, wider voltage range, and improved noise immunity of CMOS technology.
What is the typical propagation delay of NLV74HC244ADWR2G at 5 V supply?
At VCC = 5.0 V, the NLV74HC244ADWR2G exhibits a maximum propagation delay (tPLH/tPHL) of 18 ns (A→YA or B→YB), per the "AC Electrical Characteristics" table in the datasheet. Typical values are lower, but design margins must use the guaranteed max value - enabling reliable operation in systems with clock periods ≥36 ns (i.e., ≤27.8 MHz bus timing).
NLV74HC244ADWR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
NLV74HC244ADWR2G FAQ
1.How can I place an order for NLV74HC244ADWR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NLV74HC244ADWR2G 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 NLV74HC244ADWR2G reliable?
The price and inventory of NLV74HC244ADWR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NLV74HC244ADWR2G is usually 5 days.
3.What payment methods are accepted for NLV74HC244ADWR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NLV74HC244ADWR2G transactions.
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4.How is shipping managed for NLV74HC244ADWR2G?
NLV74HC244ADWR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NLV74HC244ADWR2G 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 NLV74HC244ADWR2G?
For technical support, including NLV74HC244ADWR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NLV74HC244ADWR2G requirements.
6.How does Aetrix verify that NLV74HC244ADWR2G is sourced from the original manufacturer or authorized distributors?
All NLV74HC244ADWR2G 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 NLV74HC244ADWR2G meets industry standards.
7.What is the process for return or replacement of NLV74HC244ADWR2G?
All NLV74HC244ADWR2G units undergo pre-shipment inspection (PSI). If there is an issue with NLV74HC244ADWR2G, 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 NLV74HC244ADWR2G part is unused and in its original packaging.
Return procedure for NLV74HC244ADWR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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