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NXP Semiconductors 74LV244PW,112
- Part No.:
- 74LV244PW,112
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
74LV244PW,112.pdf
- Description:
- IC BUFF/DVR TRI-ST DUAL 20TSSOP
- Quantity:
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- Shipping:
Inventory:1,900
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Product details
Overview
74LV244PW,112 from Nexperia is an octal 3-state buffer/line driver in TSSOP20 package, configured as two independent 4-bit buffers with separate active-low output enables (1OE, 2OE). It operates from 1.0 V to 5.5 V, delivers propagation delay as low as 8 ns at 3.3 V/15 pF, and supports TTL-level inputs at VCC ≥ 2.7 V - used for bidirectional bus isolation and level translation in industrial control backplanes.
For engineers reviewing the 74LV244PW,112 datasheet, 74LV244PW,112 pinout, 74LV244PW,112 application, or 74LV244PW,112 equivalent, key selection criteria include dual 4-bit enable control, ±35 mA output drive, -40 °C to +125 °C operation, 3.5 pF input capacitance, and compliance with JEDEC JESD8-7/8C/36 standards.
Technical Context
The 74LV244PW,112 implements CMOS-based non-inverting buffer logic with two independent 3-state output groups (1Y0–1Y3 and 2Y0–2Y3), each controlled by dedicated active-low enables (1OE on Pin 1, 2OE on Pin 19). Its input clamp diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used.
It features rail-to-rail input voltage tolerance (0 to VCC), guaranteed static performance from VCC = 1.2 V to 5.5 V, and dynamic timing characterized across -40 °C to +125 °C with load-dependent propagation delays (e.g., 9–14 ns at 3.0–3.6 V/15 pF) and enable/disable times under 29 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - supports single-supply operation across legacy 3.3 V and modern ultra-low-voltage 1.2 V systems |
| Propagation Delay (tpd) | 8 ns typical at VCC = 3.3 V, CL = 15 pF - enables reliable 100+ MHz bus signaling in high-speed digital interfaces |
| Output Drive Current | ±35 mA - sufficient to drive 50 Ω transmission lines or multiple CMOS/TTL loads without external buffering |
| Input Capacitance (CI) | 3.5 pF - minimizes capacitive loading on upstream drivers and preserves signal integrity in dense PCB layouts |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood automotive-adjacent environments |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - reduces risk of handling damage during assembly and field service |
| Power Dissipation (Ptot) | 500 mW at Tamb ≤ 100 °C (TSSOP20) - allows sustained operation in thermally constrained enclosures |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low enables - independently disable Group 1 (1Y0–1Y3) or Group 2 (2Y0–2Y3) outputs to high-impedance state |
| 2, 4, 6, 8 | 1A0–1A3 | Group 1 data inputs - connect to upstream source (e.g., microcontroller port) driving first 4-bit bus segment |
| 17, 15, 13, 11 | 2A0–2A3 | Group 2 data inputs - isolate second 4-bit bus segment with independent control and timing |
| 18, 16, 14, 12 | 1Y0–1Y3 | Group 1 buffered outputs - drive downstream loads (e.g., FPGA I/O banks) with controlled slew and low ground bounce |
| 3, 5, 7, 9 | 2Y0–2Y3 | Group 2 buffered outputs - provide galvanic separation between two bus domains sharing common ground |
| 10 | GND | Ground reference - must be low-inductance connection to minimize switching noise coupling into analog sections |
| 20 | VCC | Supply voltage - requires local 100 nF ceramic decoupling within 5 mm of pin to suppress supply rail collapse during output transitions |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit enables | Enables selective bus segmentation - e.g., isolate sensor interface while keeping display controller active |
| 1.0 V minimum VCC operation | Supports direct integration with 1.2 V core logic (e.g., ARM Cortex-M0+ peripherals) without level shifters |
| TTL-compatible inputs at 2.7–3.6 V | Allows mixed-voltage system interoperability - e.g., interface 3.3 V FPGA to 1.8 V MCU without translators |
| Typical VOLP < 0.8 V at 3.3 V | Reduces ground bounce-induced glitches in multi-driver shared-bus configurations |
| Latch-up immunity > 100 mA | Ensures robustness against transient overvoltage events in noisy industrial power environments |
Applications
| Industrial PLC Backplane | Embedded Microcontroller Bus Expansion |
|---|---|
Use Scenario: Isolating I/O modules on a 24 V-powered programmable logic controller backplane with shared data/address lines. IC Role / Device Role / Timing Role: Bidirectional 3-state buffer enabling time-multiplexed access to discrete I/O cards while preventing bus contention. Use Value: Dual OE pins allow staggered activation of sensor vs. actuator banks, reducing peak current draw and EMI during simultaneous module reads/writes. | Use Scenario: Expanding GPIO count of an STM32H7 microcontroller to drive 16-channel LED matrix and 8-bit parallel LCD interface. IC Role / Device Role / Timing Role: Level-translating buffer providing 3.3 V logic compatibility with 5 V display logic and 1.8 V sensor interface ICs. Use Value: Input clamp diodes permit safe 5 V-tolerant inputs without external resistors, simplifying BOM and layout for mixed-voltage peripheral expansion. |
| Automotive Body Control Module | Test Equipment Digital Pattern Generator |
Use Scenario: Signal conditioning and isolation between infotainment SoC and door module CAN/LIN transceivers in a 12 V vehicle electrical system. IC Role / Device Role / Timing Role: Low-noise bus driver ensuring clean signal edges for UART and SPI communication links operating at up to 12 Mbps. Use Value: VOHV > 2 V at 3.3 V prevents undershoot-induced false triggering in high-slew-rate serial links near noisy alternator circuits. | Use Scenario: Generating synchronized 8-bit parallel stimulus patterns for ASIC validation using FPGA-controlled test vectors. IC Role / Device Role / Timing Role: High-fidelity waveform repeater preserving edge integrity across 20 cm PCB traces to DUT input pins. Use Value: 3.5 pF input capacitance and 8 ns tpd ensure sub-nanosecond timing skew across all eight outputs, critical for setup/hold margin verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC244APWR | Wider VCC range (1.65–3.6 V); lower ICC (10 μA typ); no 1.0 V operation | Optimized for battery-powered portable devices; lacks ultra-low-voltage capability | Select when system uses only 1.8/2.5/3.3 V rails and ultra-low quiescent current is prioritized over 1.0 V support |
| 74AHC244PW,118 | Higher speed (tPD = 4.2 ns @ 5 V); higher VCC max (5.5 V); no 1.0 V operation | Better suited for 5 V legacy systems requiring faster timing margins | Select when design targets 5 V operation and needs <5 ns propagation delay, accepting loss of sub-1.2 V functionality |
Compared with SN74LVC244APWR and 74AHC244PW,118, the 74LV244PW,112 uniquely supports 1.0 V operation and retains full functionality down to that rail - making it the only choice for mixed-voltage systems integrating 1.2 V cores with 3.3 V peripherals, while maintaining industrial temperature range and robust ESD ratings.
Availability
74LV244PW,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded microcontroller bus expansion, automotive body control modules, and test equipment digital pattern generators requiring stable component supply across extended temperature ranges.
Supply support for 74LV244PW,112 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, reliable, and energy-efficient components for automotive, industrial, mobile, and consumer applications.
The 74LV logic family targets low-voltage, high-noise-immunity digital interfacing - designed specifically for robust signal integrity in mixed-supply systems where voltage translation, bus isolation, and ESD resilience are critical.
FAQ
What is the maximum clock frequency supported by the 74LV244PW,112?
The 74LV244PW,112 is not a clocked device but a transparent buffer; its usable data rate depends on propagation delay and system timing margins. With 8 ns typical tPD at 3.3 V/15 pF and 29 ns max disable time, it reliably supports asynchronous bus protocols up to ~50 MHz for clean 8-bit parallel transfers, assuming proper PCB layout and termination.
Can the 74LV244PW,112 drive 50 Ω transmission lines directly?
Yes - its ±35 mA output drive capability exceeds the 20 mA required to terminate a 50 Ω line at 3.3 V (66 mA sink/source needed for full swing). However, series termination at the source is recommended to prevent reflections, as the device's output impedance is not precisely matched to 50 Ω.
Does the 74LV244PW,112 require external pull-up or pull-down resistors on its OE pins?
No - OE pins are active-low CMOS inputs with negligible leakage (<1 μA). They can be driven directly from microcontroller GPIOs or open-drain logic outputs. Pull-up resistors are only needed if the controlling signal may float (e.g., unpowered microcontroller reset state), in which case a 10 kΩ resistor to VCC ensures default high-impedance output.
Is the 74LV244PW,112 qualified for automotive applications?
No - although rated for -40 °C to +125 °C, this part is not AEC-Q200 qualified and lacks automotive-specific reliability testing (e.g., HTOL, TC, ESD per ISO 10605). It may be used in non-safety-critical automotive-adjacent systems (e.g., infotainment accessories), but not in powertrain, braking, or ADAS functions.
74LV244PW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74LV244PW,112 FAQ
1.How can I place an order for 74LV244PW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV244PW,112 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 74LV244PW,112 reliable?
The price and inventory of 74LV244PW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV244PW,112 is usually 5 days.
3.What payment methods are accepted for 74LV244PW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV244PW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV244PW,112?
74LV244PW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV244PW,112 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 74LV244PW,112?
For technical support, including 74LV244PW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV244PW,112 requirements.
6.How does Aetrix verify that 74LV244PW,112 is sourced from the original manufacturer or authorized distributors?
All 74LV244PW,112 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 74LV244PW,112 meets industry standards.
7.What is the process for return or replacement of 74LV244PW,112?
All 74LV244PW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV244PW,112, 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 74LV244PW,112 part is unused and in its original packaging.
Return procedure for 74LV244PW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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