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Nexperia USA Inc. 74LVC1G19GV,125
- Part No.:
- 74LVC1G19GV,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- SC-74, SOT-457
- Datasheet:
-
74LVC1G19GV,125.pdf
- Description:
- IC DECODER/DEMUX 1X1:2 6TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,812
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Product details
Overview
74LVC1G19GV,125 from Nexperia is a single 1-of-2 decoder/demultiplexer with active-low enable, operating from 1.65 V to 5.5 V supply, delivering ±24 mA output drive at 3.0 V, and featuring Schmitt-trigger inputs for noise immunity in mixed-voltage systems. It routes input A to true (1Y) and complement (2Y) outputs when E is LOW, used in address decoding, signal routing, and logic-level translation in industrial control modules.
For engineers reviewing the 74LVC1G19GV,125 datasheet, 74LVC1G19GV,125 pinout, 74LVC1G19GV,125 application, or 74LVC1G19GV,125 equivalent, key selection criteria include its IOFF-enabled partial power-down capability, overvoltage-tolerant 5.5 V inputs, -40 °C to +125 °C temperature rating, and SC-74 (SOT457) 6-pin surface-mount package compatibility with high-density PCB layouts.
Technical Context
This device implements combinational logic decoding with dual complementary outputs and a shared active-low enable input. Its Schmitt-trigger inputs accept slow-rising signals and tolerate noise up to ±0.8 V hysteresis depending on VCC, while IOFF circuitry disables outputs during power-down to prevent backflow current.
The functional truth table defines strict LOW/HIGH output states: when E = L, 1Y = A and 2Y = Ā; when E = H, both 1Y and 2Y go HIGH regardless of A. Propagation delay ranges from 0.5 ns (VCC = 5.5 V) to 13.1 ns (VCC = 1.65 V, Tamb = +125 °C), measured between A/E and either Y output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports direct interface with both 3.3 V and 5 V logic families without level shifters. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive multiple 74LVC inputs or small capacitive loads (<30 pF) without buffering. |
| IOFF Support | Yes - enables safe partial power-down; outputs go high-impedance when VCC = 0 V, preventing backfeed in multi-rail systems. |
| Input Voltage Tolerance | Up to 5.5 V independent of VCC - allows 5 V signals to be applied even when VCC = 1.8 V, enabling mixed-voltage interconnect. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood industrial and extended-temperature embedded applications. |
| Propagation Delay | 0.5 ns to 13.1 ns - varies with VCC and temperature; worst-case 5.0 ns at VCC = 5.5 V and Tamb = +125 °C. |
| Power Dissipation | 250 mW max (derated above 89 °C for SOT457) - enables use in thermally constrained space-limited designs. |
Pinout & Package
74LVC1G19GV,125 uses the SC-74 (SOT457) plastic surface-mounted package: 6-lead, body size 3.1 mm × 1.7 mm × 0.95 mm, with gull-wing leads and pin 1 indicator at lower-left corner below marking "V19".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Data input | Primary logic input; routed to 1Y (true) and 2Y (complement) when E is active LOW. |
| GND | Ground reference | 0 V return path for all internal circuitry and output current sinks. |
| E | Enable input (active LOW) | When LOW, enables decoding; when HIGH, forces both outputs HIGH (high-Z not asserted). |
| 2Y | Complementary output | Active-HIGH inverted copy of A when E = L; driven HIGH when E = H. |
| VCC | Supply voltage | Power rail for internal logic and output drivers; accepts 1.65–5.5 V with full specification compliance. |
| 1Y | True output | Active-HIGH non-inverted copy of A when E = L; driven HIGH when E = H. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables robust operation with slow or noisy signals (e.g., mechanical switch debouncing or long PCB traces) without external hysteresis components. |
| IOFF partial power-down | Prevents damaging backflow current when VCC is off but I/O pins remain biased, critical for hot-swap and multi-supply domain isolation. |
| Overvoltage-tolerant inputs | Accepts 5.5 V inputs regardless of VCC level - eliminates need for external clamping diodes in mixed-voltage interfaces. |
| JEDEC-compliant voltage ranges | Fully specified across 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) standards. |
| ESD protection | HBM >2000 V and CDM >1000 V - exceeds standard industrial requirements, reducing susceptibility to handling damage. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Expanding discrete input/output points in compact programmable logic controllers using shared microcontroller GPIO lines. IC Role / Device Role / Timing Role: Decoder routes one MCU pin to two isolated downstream circuits (e.g., relay driver and status LED), synchronized to enable timing. Use Value: Reduces GPIO count by 50% per channel while maintaining electrical isolation between load paths via separate 1Y/2Y outputs. |
Use Scenario: Controlling dual-function lighting elements (e.g., daytime running light + turn signal) from a single microcontroller output in body electronics. IC Role / Device Role / Timing Role: Demultiplexer splits MCU command into true and complement signals to drive high-side and low-side FETs with opposite polarity. Use Value: Eliminates need for discrete inverters; Schmitt-trigger inputs reject EMI from vehicle harnesses, improving signal integrity. |
| Medical Sensor Interface Board | IoT Edge Node Power Management |
|
Use Scenario: Selecting between analog sensor calibration paths (reference vs. measurement) in battery-powered portable diagnostic devices. IC Role / Device Role / Timing Role: Decoder enables one of two precision op-amp configurations based on host controller command, with fast settling due to low propagation delay. Use Value: Enables <1 μA standby current (ICC ≤ 4 μA) and IOFF support ensures zero current draw during sleep mode, extending battery life. |
Use Scenario: Managing power sequencing for dual-rail subsystems (e.g., 3.3 V MCU + 1.8 V RF transceiver) in LPWAN sensor nodes. IC Role / Device Role / Timing Role: Demultiplexer controls enable lines for two independent DC-DC converters using a single GPIO, coordinated with system wake-up event. Use Value: Overvoltage-tolerant inputs allow direct connection to 3.3 V MCU GPIO even when VCC = 1.8 V, simplifying BOM and layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1-of-2 decoder/demultiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G19DBVR | TSSOP-6 (SOT23-6) package; identical electrical specs but 2.9 mm × 1.6 mm footprint vs. 3.1 mm × 1.7 mm for SOT457. | Higher thermal resistance (θJA = 218 K/W vs. 190 K/W for SOT457); less suitable for sustained 24 mA output loading at +125 °C. | Select when board space is tighter and thermal load is moderate; verify trace width for 24 mA continuous current. |
| 74AUP1G19GW,125 | Lower VCC range (0.8–3.6 V); 1.8 V typical supply; 3.8 ns max tpd at 3.3 V; no 5 V input tolerance. | Not usable in mixed 3.3 V/5 V systems; unsuitable for automotive or industrial environments requiring >105 °C operation. | Choose only for ultra-low-power, single-rail 1.8 V designs where 5 V tolerance and extended temperature are unnecessary. |
Compared with SN74LVC1G19DBVR, 74LVC1G19GV,125 offers better thermal performance in high-ambient applications; versus 74AUP1G19GW,125, it provides broader voltage interoperability and higher temperature resilience at the cost of slightly higher static current.
Availability
74LVC1G19GV,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical sensor interface boards requiring stable component supply across extended temperature ranges and mixed-voltage environments.
Supply support for 74LVC1G19GV,125 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 optimized for reliability and energy efficiency.
The 74LVC1G19 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed for robust signal integrity and voltage-level flexibility in space-constrained, mixed-supply industrial and automotive electronics.
FAQ
Does 74LVC1G19GV,125 support true high-impedance outputs when disabled?
No - when E is HIGH, both 1Y and 2Y are driven HIGH (not high-impedance). The device does not feature three-state outputs. IOFF only applies during power-down (VCC = 0 V), forcing outputs to high-impedance to block backfeed current; normal disable behavior is active-HIGH assertion on both outputs.
Can 74LVC1G19GV,125 interface directly with 5 V TTL outputs?
Yes - its inputs tolerate up to 5.5 V regardless of VCC level, and its VIH/VIL thresholds scale with VCC (e.g., VIH = 0.7 × VCC at 5 V). When powered at 3.3 V, it reliably accepts 5 V TTL HIGH signals without clamping or level shifting, making it ideal for legacy system integration.
What is the maximum capacitive load this device can drive at 24 mA output current?
At VCC = 3.0 V and IO = ±24 mA, the output maintains VOH ≥ 2.3 V and VOL ≤ 0.55 V into a resistive load; for capacitive loads, the 30 pF test condition in Table 10 confirms stable switching up to 5.2 ns propagation delay. Loads exceeding 50 pF require verification of rise/fall time degradation and potential ringing in the target application.
Is the SOT457 package RoHS-compliant and lead-free?
Yes - 74LVC1G19GV,125 in SOT457 packaging meets RoHS Directive 2011/65/EU and is fully lead-free, with matte tin (Sn) termination finish and halogen-free molding compound, certified per Nexperia's material declarations and IPC-1752 reporting.
74LVC1G19GV,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 1:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- 32mA, 32mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
74LVC1G19GV,125 FAQ
1.How can I place an order for 74LVC1G19GV,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G19GV,125 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 74LVC1G19GV,125 reliable?
The price and inventory of 74LVC1G19GV,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G19GV,125 is usually 5 days.
3.What payment methods are accepted for 74LVC1G19GV,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G19GV,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G19GV,125?
74LVC1G19GV,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G19GV,125 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 74LVC1G19GV,125?
For technical support, including 74LVC1G19GV,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G19GV,125 requirements.
6.How does Aetrix verify that 74LVC1G19GV,125 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G19GV,125 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 74LVC1G19GV,125 meets industry standards.
7.What is the process for return or replacement of 74LVC1G19GV,125?
All 74LVC1G19GV,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G19GV,125, 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 74LVC1G19GV,125 part is unused and in its original packaging.
Return procedure for 74LVC1G19GV,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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