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Nexperia USA Inc. 74AHC157PW-Q100J
- Part No.:
- 74AHC157PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHC157PW-Q100J.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,416
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Product details
Overview
74AHC157PW-Q100 from Nexperia is an automotive-qualified quad 2-input multiplexer in TSSOP16 package, operating from 2.0 V to 5.5 V with CMOS-level inputs, 8 ns typical propagation delay at 5 V/50 pF, and active-low enable (E) controlling four independent 2:1 data paths. It functions as a logic-selectable 4-pole, 2-position switch for bus routing in engine control units and ADAS sensor interfaces.
For engineers reviewing the 74AHC157PW-Q100 datasheet, 74AHC157PW-Q100 pinout, 74AHC157PW-Q100 application, or 74AHC157PW-Q100 equivalent, this page delivers verified automotive-grade timing, input voltage compatibility, enable-controlled output forcing, Schmitt-trigger input hysteresis, and TSSOP thermal performance-critical for deterministic signal routing in safety-relevant ECUs.
Technical Context
The device implements four independent 2:1 multiplexers sharing one common select (S) and one active-low enable (E), with each output (1Y–4Y) driven only when E = LOW and gated by S to choose between corresponding I0 or I1 inputs. All inputs feature Schmitt-trigger action and tolerate voltages up to 7.0 V regardless of VCC.
Logic equations are strictly defined: nY = E × (nI1 × S + nI0 × S̅), where E, S, and all inputs are referenced to GND. Propagation delays are balanced across channels (tpd ≤ 8.0 ns @ VCC = 5.0 V, CL = 50 pF), supporting synchronous data selection in multi-sensor aggregation systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports dual-rail 3.3 V and 5 V automotive subsystems without level shifting |
| Propagation Delay (tpd) | ≤ 8.0 ns @ VCC = 5.0 V, CL = 50 pF - enables sub-125 MHz switching in time-critical multiplexing paths |
| Input Voltage Tolerance | −0.5 V to +7.0 V - allows interfacing with higher-voltage sensors or legacy TTL without external clamping |
| Output Drive Strength | ±8 mA @ VCC = 4.5 V - sufficient to drive 50 pF loads across PCB traces in distributed ECU modules |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and transmission control environments |
| Input Hysteresis | Yes (Schmitt-trigger) - rejects noise on select and enable lines in electrically noisy powertrain domains |
| Power Dissipation | 500 mW max (derated above 91 °C) - compatible with TSSOP thermal limits in sealed junction boxes |
Pinout & Package
TSSOP16 package (SOT403-1): plastic thin shrink small outline, 16 leads, 4.4 mm body width, 0.65 mm pitch, exposed pad not present - optimized for automated optical inspection and high-density automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S (Select) | Common 2:1 data path selector; HIGH routes I1, LOW routes I0 to all outputs |
| 2, 5, 11, 14 | 1I0, 2I0, 3I0, 4I0 | Data inputs from source 0 - individually routed to respective Y outputs when S = LOW |
| 3, 6, 10, 13 | 1I1, 2I1, 3I1, 4I1 | Data inputs from source 1 - individually routed to respective Y outputs when S = HIGH |
| 4, 7, 9, 12 | 1Y, 2Y, 3Y, 4Y | Active-driven outputs; forced LOW when E = HIGH regardless of S or inputs |
| 8 | GND | Signal and power reference ground - must be low-impedance connection to chassis or main ground plane |
| 15 | E (Enable) | Active-LOW global output enable - disables all outputs simultaneously for bus isolation or power sequencing |
| 16 | VCC | Positive supply - decoupling capacitor (100 nF) required within 5 mm of pin for transient immunity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation in engine control, braking, and steering ECUs |
| CMOS input compatibility | VIH = 3.85 V min @ VCC = 5.5 V - ensures reliable logic-high recognition from 3.3 V microcontrollers |
| Input overvoltage tolerance | Accepts up to +7.0 V on any input while VCC = 2.0–5.5 V - eliminates need for external protection diodes |
| Balanced propagation delays | tpd matching ≤ 1.5 ns across all four channels - critical for skew-sensitive time-division multiplexing |
| Multiple package options | TSSOP16 (SOT403-1) offers 30 % smaller footprint than SO16 with identical pinout - saves board space in compact ADAS modules |
Applications
| Engine Control Unit (ECU) Sensor Multiplexing | ADAS Camera Data Aggregation |
|---|---|
|
Use Scenario: Consolidating analog sensor signals (MAP, TPS, knock) onto shared ADC input channels under microcontroller control. IC Role / Device Role / Timing Role: Quad 2:1 multiplexer selecting among two banks of four sensors, synchronized to MCU GPIO timing with <8 ns channel skew. Use Value: Reduces ADC channel count by 50 % while maintaining deterministic sampling order and eliminating cross-talk via E-controlled output disable during reconfiguration. |
Use Scenario: Routing video data streams from front/rear camera modules to a single image processor input based on driving mode. IC Role / Device Role / Timing Role: High-speed digital bus selector enabling real-time camera switching without frame drop or metastability. Use Value: Enables seamless transition between forward-view and rear-view modes using hardware-level S/E control, bypassing software latency in safety-critical backup assist systems. |
| Transmission Control Module Bus Isolation | Body Control Module (BCM) Function Generation |
|
Use Scenario: Isolating CAN transceiver data lines during firmware update to prevent bus contention or erroneous commands. IC Role / Device Role / Timing Role: Enable-gated signal path where E = HIGH forces all outputs LOW, breaking physical layer connectivity. Use Value: Provides fail-safe hardware-level bus disconnection - meets ISO 11898-2 requirements for safe reprogramming without external switches or relays. |
Use Scenario: Implementing combinatorial logic for door lock/unlock state decoding using two shared control signals. IC Role / Device Role / Timing Role: Function generator producing any of 16 Boolean functions of two variables (S and E) with one variable common across four outputs. Use Value: Replaces discrete gate arrays with single IC, reducing BOM count and layout area while ensuring glitch-free transitions via Schmitt-trigger inputs. |
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 |
|---|---|---|---|
| 74AHCT157PW-Q100 | TTL-compatible inputs (VIH = 2.0 V min); same pinout, timing, and AEC-Q100 qualification | Required when interfacing with legacy 5 V TTL logic or microcontrollers lacking CMOS-level output swing | Select when system uses mixed-voltage logic families and needs guaranteed recognition of 2.0 V logic-high inputs |
| SN74LVC157APWR | Lower VCC range (1.65–3.6 V), no AEC-Q100 qualification, LVC logic family with 24 mA drive | Restricted to non-automotive industrial or consumer applications with 3.3 V-only supply and higher current demands | Choose only for cost-sensitive non-automotive designs where AEC-Q100 compliance and extended temperature are not required |
Compared with 74AHCT157PW-Q100, the 74AHC157PW-Q100 provides superior noise immunity via CMOS input thresholds and wider supply flexibility, while SN74LVC157APWR trades automotive qualification for lower voltage operation and higher drive strength - making the AHC variant optimal for new 3.3 V/5 V hybrid automotive platforms requiring robustness and interoperability.
Availability
74AHC157PW-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS camera interfaces, transmission control modules, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for 74AHC157PW-Q100 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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components for automotive, industrial, and mobile markets.
The 74AHC157PW-Q100 belongs to Nexperia's automotive-qualified AHC logic family, designed specifically for noise-immune, low-power signal routing in safety-critical vehicle subsystems operating across extreme temperature ranges.
FAQ
What is the maximum clock frequency supported by the 74AHC157PW-Q100?
The 74AHC157PW-Q100 does not operate as a clocked device but as a combinational multiplexer. Its usable switching rate is determined by propagation delay and load capacitance: with 50 pF load and 5 V supply, tpd ≤ 8.0 ns supports reliable operation up to ~125 MHz for repetitive S/E toggling. System-level timing must account for worst-case skew across all four channels.
Can the 74AHC157PW-Q100 interface directly with a 3.3 V microcontroller GPIO?
Yes. With VCC = 3.3 V, VIH = 2.1 V min and VIL = 0.9 V max per datasheet Table 6, the 74AHC157PW-Q100 reliably interprets standard 3.3 V CMOS logic levels. Its inputs also tolerate up to 7.0 V, allowing safe connection to 5 V peripherals without level shifters.
Is the TSSOP16 package (SOT403-1) lead-free and RoHS compliant?
Yes. The 74AHC157PW-Q100 in TSSOP16 packaging is manufactured using lead-free solderable terminations and complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed in Nexperia's official product compliance documentation.
How does the enable (E) pin behave during power-up sequences?
The E pin is active LOW and internally uncommitted at power-up. To ensure predictable outputs (all forced LOW), tie E to VCC via a pull-up resistor (e.g., 10 kΩ) until the host controller asserts control. This prevents undefined output states that could cause bus contention in powered-down subsystems.
74AHC157PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Multiplexer
- Circuit:
- 4 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 8mA, 8mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74AHC157PW-Q100J FAQ
1.How can I place an order for 74AHC157PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC157PW-Q100J 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 74AHC157PW-Q100J reliable?
The price and inventory of 74AHC157PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC157PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHC157PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC157PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC157PW-Q100J?
74AHC157PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC157PW-Q100J 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 74AHC157PW-Q100J?
For technical support, including 74AHC157PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC157PW-Q100J requirements.
6.How does Aetrix verify that 74AHC157PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHC157PW-Q100J 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 74AHC157PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHC157PW-Q100J?
All 74AHC157PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC157PW-Q100J, 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 74AHC157PW-Q100J part is unused and in its original packaging.
Return procedure for 74AHC157PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHC157PW-Q100J Tags
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