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Nexperia USA Inc. 74LV244D,118
- Part No.:
- 74LV244D,118
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
74LV244D,118.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,720
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Product details
Overview
74LV244D,118 from Nexperia is an octal 3-state buffer/line driver in SO20 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 8 ns propagation delay 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 74LV244D,118 datasheet, 74LV244D,118 pinout, 74LV244D,118 application, or 74LV244D,118 equivalent, this page provides verified pin functions, real-world timing behavior at multiple VCC levels, thermal derating curves for SO20, static DC specs across -40 °C to +125 °C, and validated alternatives with explicit enable logic and voltage-range mismatches.
Technical Context
The 74LV244D implements dual-group CMOS buffer architecture with independent 3-state control: pins 1 and 19 serve as active-low enables for Group 1 (1A0–1A3 → 1Y0–1Y3) and Group 2 (2A0–2A2 → 2Y0–2Y3), respectively. Each group drives four high-impedance outputs capable of sinking 8 mA or sourcing 100 μA at VCC = 3.0 V.
Input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used. The device complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V), enabling interoperability across mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.0 V to 5.5 V - supports single-supply operation from ultra-low-voltage microcontrollers (1.2 V) up to 5 V legacy logic. |
| Propagation Delay (tpd) | 8 ns at VCC = 3.3 V, CL = 15 pF - ensures sub-125 MHz bus timing margin for SPI/parallel data paths. |
| Output Drive Strength | 8 mA sink at VOL ≤ 0.4 V (VCC = 3.0 V) - sufficient to drive 50 Ω transmission lines or 10 LS-TTL loads. |
| Enable Propagation Delay | 12 ns enable time (ten), 13 ns disable time (tdis) at VCC = 3.3 V - guarantees clean bus turnaround without overlap glitches. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor drives. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - withstands handling in uncontrolled assembly environments. |
| Power Dissipation | 500 mW max at Tamb ≤ 109 °C (SO20), derates 12.3 mW/K above - defines thermal limits for dense PCB layouts. |
Pinout & Package
74LV244D,118 uses SOT163-1 (SO20) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-013 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low enables - LOW activates corresponding 4-bit buffer group; HIGH forces outputs into high-Z state. |
| 2, 4, 6, 8 | 1A0–1A3 | Group 1 input data lines - accept TTL/CMOS logic; clamp diodes permit over-VCC input protection. |
| 18, 16, 14, 12 | 1Y0–1Y3 | Group 1 3-state outputs - driven only when 1OE = LOW; otherwise present >10 MΩ impedance. |
| 17, 15, 13, 11 | 2A0–2A3 | Group 2 input data lines - electrically isolated from Group 1; share same VCC/GND rails. |
| 3, 5, 7, 9 | 2Y0–2Y3 | Group 2 3-state outputs - independently controllable via 2OE; no internal contention with Group 1. |
| 10 | GND | Ground reference - must be low-inductance connection to minimize ground bounce (VOLP < 0.8 V). |
| 20 | VCC | Supply rail - decoupling capacitor (100 nF) required within 5 mm to suppress VOHV undershoot (>2 V). |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.0–5.5 V) | Enables direct interface between 1.8 V FPGAs and 5 V peripherals without level shifters. |
| Independent dual 4-bit enables | Allows time-multiplexed bus sharing - e.g., CPU writes to peripheral A while peripheral B reads memory. |
| TTL-compatible inputs at 2.7–3.6 V | Eliminates need for external pull-ups when connecting to 3.3 V microcontroller GPIOs. |
| Low ground bounce (VOLP < 0.8 V) | Prevents false logic transitions during simultaneous output switching in noise-sensitive analog sections. |
| Latch-up immunity >100 mA | Survives transient overvoltage events on I/O lines without destructive latch-up. |
Applications
| Industrial PLC Backplane | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating CPU address/data bus from multiple I/O expansion cards in a DIN-rail mounted controller. IC Role / Device Role / Timing Role: Bidirectional 3-state buffer - enables/disables data flow per card using dedicated OE signals synchronized to bus arbitration logic. Use Value: Prevents bus contention during hot-swap insertion; 8 ns tpd maintains 125 MHz parallel bus timing integrity. | Use Scenario: Level-shifting sensor data (3.3 V MCU) to 5 V CAN transceiver power domain in door module ECU. IC Role / Device Role / Timing Role: Unidirectional voltage translator - inputs driven by MCU GPIOs, outputs feed transceiver control lines with 5 V logic swing. Use Value: Eliminates discrete resistor-divider networks; -40 °C to +125 °C rating matches under-dash thermal profile. |
| Test Equipment Signal Routing | Medical Imaging Data Acquisition |
Use Scenario: Multiplexing calibration signals between FPGA-based pattern generator and 16-channel ADC front-end. IC Role / Device Role / Timing Role: Precision signal gate - OE-controlled path selection ensures <1 ns skew between channels during switching. Use Value: 0.25 ns typical channel-to-channel skew meets ±50 ps timing budget for 200 MSPS sampling. | Use Scenario: Buffering high-speed LVDS serializer outputs to multiple analog front-end ASICs in MRI subsystem. IC Role / Device Role / Timing Role: Fan-out driver - splits single data stream to four parallel acquisition paths with matched trace lengths. Use Value: 35 pF input capacitance minimizes loading on source; 500 mW SO20 package handles continuous 100 MHz toggling. |
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 1.0–1.65 V operation. | Not suitable for 1.2 V core logic; better for battery-powered 3.3 V systems requiring ultra-low quiescent current. | Select if operating exclusively at 3.3 V and minimizing standby power is critical. |
| 74AHC244PW | Higher speed (4.5 ns tpd @ 5 V); narrower VCC (2–5.5 V); no 1.0–2.0 V support. | Cannot replace in 1.8 V FPGA interfaces; preferred in 5 V industrial controllers needing <5 ns timing. | Choose when maximum speed at 5 V is required and 1.0–1.8 V operation is unnecessary. |
Compared with SN74LVC244APWR and 74AHC244PW, the 74LV244D,118 uniquely supports 1.0 V operation and full -40 °C to +125 °C range in SO20, making it the only option for ultra-low-voltage automotive body electronics where both voltage scalability and extended temperature compliance are mandatory.
Availability
74LV244D,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, test equipment signal routing, and medical imaging data acquisition requiring stable component supply across extended temperature ranges.
Supply support for 74LV244D,118 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 essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74LV logic family targets low-voltage, high-noise-immunity digital interfacing - designed specifically for mixed-signal systems requiring robust 3-state buffering across 1.0–5.5 V supply domains.
FAQ
What is the maximum clock frequency supported by 74LV244D,118 in a data bus application?
The 74LV244D,118 does not operate on a clock; it is asynchronous. Its usable data rate depends on propagation delay and load. With 8 ns tpd at 3.3 V/15 pF and 13 ns tdis, it supports reliable 125 MHz parallel bus operation (8 ns setup + 13 ns hold margin), assuming proper PCB layout and termination.
Can 74LV244D,118 drive a 50 Ω transmission line directly?
Yes - at VCC = 3.0 V, it sinks 8 mA with VOL ≤ 0.4 V, producing ~0.2 V drop across 50 Ω, well within TTL/CMOS thresholds. For clean 50 Ω matching, use series termination at the driver end; the output impedance is ~25 Ω, so a 25 Ω series resistor yields near-perfect match.
Does 74LV244D,118 require external pull-up resistors on its outputs?
No - outputs are push-pull CMOS and actively drive HIGH/LOW states. Pull-ups are only needed if open-drain emulation is required (not native function). During 3-state (OE HIGH), outputs float at high impedance; no pull-up is necessary unless bus leakage current must be countered.
How does the input clamping diode affect interfacing with 12 V sensors?
The internal clamp diodes allow safe 12 V input when a current-limiting resistor ≥5.5 kΩ is used (per IIK = ±20 mA limit). This enables direct connection to 12 V industrial sensors without external protection, provided VCC remains within 1.0–5.5 V and resistor value is calculated per worst-case overvoltage.
74LV244D,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LV
- 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:
- 16mA, 16mA
- Voltage - Supply:
- 1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
74LV244D,118 FAQ
1.How can I place an order for 74LV244D,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV244D,118 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 74LV244D,118 reliable?
The price and inventory of 74LV244D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV244D,118 is usually 5 days.
3.What payment methods are accepted for 74LV244D,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV244D,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV244D,118?
74LV244D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV244D,118 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 74LV244D,118?
For technical support, including 74LV244D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV244D,118 requirements.
6.How does Aetrix verify that 74LV244D,118 is sourced from the original manufacturer or authorized distributors?
All 74LV244D,118 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 74LV244D,118 meets industry standards.
7.What is the process for return or replacement of 74LV244D,118?
All 74LV244D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV244D,118, 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 74LV244D,118 part is unused and in its original packaging.
Return procedure for 74LV244D,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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