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Nexperia USA Inc. 74LVC157ABQ,115
- Part No.:
- 74LVC157ABQ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
74LVC157ABQ,115.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:8,132
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Product details
Overview
74LVC157ABQ,115 from Nexperia is a quad 2-input CMOS multiplexer with independent data select (S) and active-low enable (E) inputs, operating from 1.2 V to 3.6 V supply, supporting mixed-voltage translation between 3.3 V and 5 V logic domains, and featuring Schmitt-trigger inputs for noise immunity in industrial control and FPGA I/O expansion applications.
For engineers reviewing the 74LVC157ABQ,115 datasheet, 74LVC157ABQ,115 pinout, 74LVC157ABQ,115 application, or 74LVC157ABQ,115 equivalent, key selection criteria include its 16-terminal DHVQFN package, -40 °C to +125 °C temperature rating, 2.5 ns typical propagation delay at 3.3 V, overvoltage-tolerant 5.5 V inputs, and guaranteed output skew ≤1.5 ns across all four channels.
Technical Context
The 74LVC157ABQ implements four independent 2:1 multiplexers sharing one common select line (S) and one global enable input (E), where E high forces all outputs low regardless of S or input states. Its Schmitt-trigger inputs accept slow-rising signals and tolerate input voltages up to 5.5 V while powered from as low as 1.2 V.
It complies with JEDEC standards JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V), and supports dynamic power calculation via CPD = 15.9 pF at 3.0–3.6 V, enabling precise thermal modeling in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V systems without level shifters. |
| Input Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V legacy peripherals while powered from 3.3 V or lower. |
| Propagation Delay (tpd) | 1.0–6.5 ns at VCC = 3.0–3.6 V - Supports >150 MHz data switching in high-speed digital routing paths. |
| Output Skew (tsk(o)) | ≤1.5 ns - Ensures synchronized channel switching critical for parallel bus gating and clock domain crossing. |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive ECUs, industrial PLCs, and outdoor telecom equipment. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Reduces need for external protection in board-level ESD-prone environments. |
| Power Dissipation Cap | 500 mW (DHVQFN16) - Supports continuous operation in thermally dense FPGA/ASIC companion logic layouts. |
Pinout & Package
DHVQFN16 (SOT763-1) package: 2.5 mm × 3.5 mm × 0.85 mm body, leadless, thermal-enhanced, 16-terminal quad flat no-lead with exposed thermal pad (GND(1)), compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 2Y | Output of second multiplexer channel - drives downstream logic or bus lines with rail-to-rail CMOS swing. |
| 2 | 3I1 | Data input source 1 for third channel - accepts 5.5 V-tolerant signals even when VCC = 1.2 V. |
| 3 | 2I1 | Data input source 1 for second channel - shares same select logic as other channels for compact control. |
| 4 | 3I0 | Data input source 0 for third channel - enables dual-source routing per channel (e.g., sensor vs. calibration signal). |
| 5 | 2I0 | Data input source 0 for second channel - used in redundant path selection or test mode injection. |
| 6 | 4Y | Output of fourth multiplexer channel - routed to ADC input or microcontroller GPIO with minimal trace length. |
| 7 | GND(1) | Exposed thermal pad - must be soldered to internal ground plane for thermal dissipation and EMI reduction. |
| 8 | 1Y | Output of first multiplexer channel - primary data path for system boot configuration or status reporting. |
| 9 | 4I1 | Data input source 1 for fourth channel - supports hot-swap detection or failover signal routing. |
| 10 | 1I1 | Data input source 1 for first channel - connects to high-priority interrupt source or watchdog feed. |
| 11 | 4I0 | Data input source 0 for fourth channel - used for default state or factory calibration value selection. |
| 12 | 1I0 | Data input source 0 for first channel - typically tied to fixed logic level or pull-up/pull-down network. |
| 13 | E | Active-low enable - asserted high disables all outputs to high-impedance-equivalent LOW, preventing bus contention. |
| 14 | GND | Signal ground reference - decoupled locally with 100 nF ceramic capacitor near VCC pin. |
| 15 | 3Y | Output of third multiplexer channel - feeds real-time monitoring circuitry with deterministic latency. |
| 16 | VCC | Core supply input - requires separate 1.2–3.6 V regulator or LDO with ≤10 mV ripple for stable timing margins. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-tolerant inputs | Withstands 5.5 V on any input while VCC = 1.2 V - eliminates external clamping diodes in mixed-voltage designs. |
| Schmitt-trigger input thresholds | Hysteresis ≥0.3 V at VCC = 3.3 V - rejects noise on long traces or unshielded cables in motor drive feedback loops. |
| JEDEC-compliant voltage ranges | Validated across three industry-standard VCC bands (1.65–1.95 V, 2.3–2.7 V, 2.7–3.6 V) - ensures interoperability with memory interfaces and SoC I/O banks. |
| Low static current | ICC ≤ 40 μA at VCC = 3.6 V and full logic activity - extends battery life in always-on sensor nodes. |
| Thermal-enhanced DHVQFN | RθJA = 11.2 mW/K derating above 106 °C - sustains 500 mW total power in compact 2.5 × 3.5 mm footprint. |
Applications
| Industrial PLC I/O Expansion | FPGA Configuration Routing |
|---|---|
|
Use Scenario: Multiplexing analog sensor inputs (temperature, pressure) into a single ADC channel while maintaining isolation between measurement sources. IC Role / Device Role / Timing Role: Quad 2:1 selector gates four differential sensor pairs onto shared SAR ADC inputs, synchronized by FPGA-controlled S/E signals. Use Value: Reduces component count by replacing four discrete analog switches; Schmitt inputs reject EMI from nearby 24 V solenoid drivers. |
Use Scenario: Selecting between primary and backup configuration bitstreams during FPGA partial reconfiguration or field firmware updates. IC Role / Device Role / Timing Role: Routes two flash memory outputs (main and recovery image) to FPGA configuration pins under processor arbitration. Use Value: Enables zero-downtime firmware rollback; 2.5 ns tpd ensures setup/hold timing closure at 100 MHz configuration clock. |
| Automotive Body Control Module | Test Equipment Signal Gating |
|
Use Scenario: Consolidating door lock actuator feedback signals (open/closed, jam detection) from multiple zones into MCU diagnostic inputs. IC Role / Device Role / Timing Role: Channels four mechanical switch inputs through E-enabled gating to prevent false triggers during power-up sequencing. Use Value: -40 °C to +125 °C rating matches BCM under-dash environment; 5.5 V tolerance handles load-dump transients on shared harnesses. |
Use Scenario: Isolating DUT signals during automated functional testing to prevent cross-talk between stimulus and measurement paths. IC Role / Device Role / Timing Role: Gates four independent test vectors (clock, data, enable, reset) using synchronized S/E control from ATE controller. Use Value: Output skew ≤1.5 ns guarantees simultaneous vector application across DUT pins; low ICC minimizes tester power supply loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC157APWR | TSSOP16 package (SOT403-1); 4.4 mm body width; 8.5 mW/K thermal derating above 91 °C | Better suited for manual rework or prototyping due to gull-wing leads; lower thermal performance than DHVQFN | Select when board assembly uses wave soldering or requires visual solder joint inspection. |
| 74LVC157AD | SO16 package (SOT109-1); 3.9 mm body width; 12.4 mW/K thermal derating above 110 °C; higher parasitic capacitance | Legacy-compatible footprint; larger size limits density in portable electronics | Select for drop-in replacement in existing SO16-based designs where thermal budget allows. |
Compared with SN74LVC157APWR and 74LVC157AD, the 74LVC157ABQ,115 delivers superior thermal efficiency (11.2 mW/K derating) and smallest footprint (2.5 × 3.5 mm), making it optimal for high-density automotive and industrial modules where heat dissipation and board area are constrained.
Availability
74LVC157ABQ,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, FPGA configuration routing, automotive body control modules, and automated test equipment requiring stable component supply across extended temperature ranges and mixed-voltage logic interfaces.
Supply support for 74LVC157ABQ,115 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 logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer electronics.
The 74LVC157A series belongs to Nexperia's advanced LVC logic family, designed specifically for low-voltage, high-noise-immunity digital interfacing in space- and power-constrained embedded systems.
FAQ
Can the 74LVC157ABQ,115 operate with a 1.2 V supply while accepting 5 V inputs?
Yes. The device features overvoltage-tolerant inputs rated to 5.5 V regardless of VCC level. At VCC = 1.2 V, inputs remain fully functional and compliant with JEDEC JESD8-7A, enabling safe interfacing with 5 V sensors or legacy controllers without external level-shifting circuitry.
What is the function of the exposed thermal pad (GND(1)) on pin 7?
Pin 7 is an exposed thermal pad electrically connected to GND and thermally coupled to the die. It must be soldered to a dedicated PCB ground plane with ≥4 thermal vias (0.3 mm diameter) to achieve specified thermal performance (500 mW max power) and reduce junction temperature rise by up to 25 °C.
How does the enable (E) input interact with the select (S) input?
E is active-low: when E = HIGH, all four outputs (1Y–4Y) are forced LOW regardless of S state or input values. When E = LOW, outputs follow the S-controlled multiplexer function (S = LOW selects I0; S = HIGH selects I1). This priority logic prevents bus contention during system reset or standby modes.
Is the 74LVC157ABQ,115 qualified for automotive applications?
No. Although rated for -40 °C to +125 °C, this part is not AEC-Q100 qualified and lacks automotive-specific stress testing, failure analysis, or PPAP documentation. It may be used in non-safety-critical automotive subsystems (e.g., infotainment, lighting) only after full customer validation.
74LVC157ABQ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Multiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 24mA, 24mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DHVQFN (2.5x3.5)
74LVC157ABQ,115 FAQ
1.How can I place an order for 74LVC157ABQ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC157ABQ,115 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 74LVC157ABQ,115 reliable?
The price and inventory of 74LVC157ABQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC157ABQ,115 is usually 5 days.
3.What payment methods are accepted for 74LVC157ABQ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC157ABQ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC157ABQ,115?
74LVC157ABQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC157ABQ,115 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 74LVC157ABQ,115?
For technical support, including 74LVC157ABQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC157ABQ,115 requirements.
6.How does Aetrix verify that 74LVC157ABQ,115 is sourced from the original manufacturer or authorized distributors?
All 74LVC157ABQ,115 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 74LVC157ABQ,115 meets industry standards.
7.What is the process for return or replacement of 74LVC157ABQ,115?
All 74LVC157ABQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC157ABQ,115, 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 74LVC157ABQ,115 part is unused and in its original packaging.
Return procedure for 74LVC157ABQ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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