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Nexperia USA Inc. 74AHCT157D-Q100J
- Part No.:
- 74AHCT157D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT157D-Q100J.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,907
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Product details
Overview
74AHCT157D-Q100 from Nexperia is an automotive-qualified quad 2-input multiplexer with TTL-compatible input thresholds, 16-pin SO16 package, -40 °C to +125 °C operating range, and 3.2 ns typical propagation delay (VCC = 5.0 V, CL = 15 pF). It functions as a 4-pole, 2-position logic switch for data routing in engine control units and ADAS domain controllers.
For engineers reviewing the 74AHCT157D-Q100 datasheet, 74AHCT157D-Q100 pinout, 74AHCT157D-Q100 application, or 74AHCT157D-Q100 equivalent, key selection criteria include TTL-level input compatibility, AEC-Q100 Grade 1 qualification, enable-controlled output disable, balanced propagation delays across channels, and Schmitt-trigger input noise immunity.
Technical Context
This device implements four independent 2:1 multiplexers sharing one common select (S) and one active-low enable (E) input. Each channel routes either I0 or I1 to its Y output based on S state when E is LOW; all outputs go LOW when E is HIGH.
It uses high-speed Si-gate CMOS technology compliant with JEDEC 7A, supports mixed-voltage interfacing via Schmitt-trigger inputs (accepting voltages up to VCC), and features input clamping diodes with HBM >2000 V and CDM >1000 V ESD protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input multiplexer with common select (S) and active-low enable (E) |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5 V TTL and industrial automotive rails |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - matches standard TTL logic levels for seamless interfacing |
| Propagation Delay | 3.2 ns typ (VCC = 5.0 V, CL = 15 pF) - enables reliable operation in sub-100 MHz digital control paths |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive multiple 74-series inputs or short PCB traces |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets stringent automotive board-level robustness requirements |
Pinout & Package
74AHCT157D-Q100 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. The package supports automated optical inspection and reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S (Select) | Common data source selector: LOW selects I0, HIGH selects I1 across all four channels |
| 2, 5, 11, 14 | 1I0, 2I0, 3I0, 4I0 | Data inputs from source 0 - routed to corresponding Y outputs when S = LOW |
| 3, 6, 10, 13 | 1I1, 2I1, 3I1, 4I1 | Data inputs from source 1 - routed to corresponding Y outputs when S = HIGH |
| 4, 7, 9, 12 | 1Y, 2Y, 3Y, 4Y | Multiplexer outputs - driven LOW when E = HIGH, high-impedance not supported |
| 8 | GND | Ground reference (0 V) - must be low-impedance connection for signal integrity |
| 15 | E (Enable) | Active-low global enable - forces all Y outputs LOW regardless of S or I states when HIGH |
| 16 | VCC | Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including thermal cycling and humidity testing |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates level-shifting in legacy 5 V systems |
| Schmitt-trigger inputs | Hysteresis ≥ 0.3 V - rejects noise on S and E lines in electrically noisy vehicle environments |
| Balanced propagation delays | tPLH and tPHL match within 0.5 ns - ensures deterministic timing across all four channels |
| Input overvoltage tolerance | Accepts VI up to 7.0 V regardless of VCC - allows safe interfacing with higher-voltage sensors or microcontrollers |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Selecting between two sets of sensor calibration data (e.g., cold vs. hot engine maps) during runtime. IC Role / Device Role / Timing Role: Quad data selector routing 4-bit calibration words from dual flash banks to ADC interface logic. Use Value: Enables real-time map switching without CPU intervention, reducing latency by 120 ns versus software-based selection. |
Use Scenario: Multiplexing camera pixel data streams from front and rear image sensors onto a shared MIPI CSI-2 lane. IC Role / Device Role / Timing Role: Channel selector synchronizing 4-bit parallel video metadata under frame-sync control signal. Use Value: Reduces PCB layer count by consolidating two 4-bit buses into one, cutting interconnect length by 35%. |
| Body Control Module (BCM) | Infotainment Head Unit |
|
Use Scenario: Routing door lock status signals from left/right door modules to central security MCU. IC Role / Device Role / Timing Role: Fault-tolerant data selector enabling fail-safe arbitration between redundant door sensor inputs. Use Value: Provides hardware-level redundancy with <10 ns skew between channels, meeting ISO 26262 ASIL-B timing constraints. |
Use Scenario: Switching between two audio codec configurations (e.g., analog line-in vs. digital SPDIF input) based on user selection. IC Role / Device Role / Timing Role: Audio path selector controlling 4-bit control bus to audio DSP configuration registers. Use Value: Eliminates software polling delay, achieving sub-millisecond audio source switching with zero audible artifacts. |
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 |
|---|---|---|---|
| 74AHC157D-Q100 | CMOS-input thresholds (VIH = 3.85 V @ VCC = 5.5 V); lower ICC (4 μA typ) | Requires 3.3 V or 5 V CMOS-level drivers; unsuitable for direct TTL interface | Select when interfacing with modern low-power MCUs or FPGAs with CMOS outputs |
| SN74LV157AQPWRQ1 | TI's AEC-Q100 Grade 1 variant; 1.65–5.5 V supply; 3.5 ns tpd @ 3.3 V | Wider VCC range enables single-rail operation with 3.3 V systems; different pinout (TSSOP only) | Select when designing for mixed-voltage domains or requiring TI's long-term supply assurance |
Compared with 74AHC157D-Q100 and SN74LV157AQPWRQ1, the 74AHCT157D-Q100 uniquely bridges legacy 5 V TTL systems and modern automotive electronics through guaranteed TTL-level recognition while maintaining AEC-Q100 compliance and SO16 footprint compatibility.
Availability
74AHCT157D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, body control modules, and infotainment head units requiring stable component supply across automotive production lifecycles.
Supply support for 74AHCT157D-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 headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AHCT157D-Q100 belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust signal routing in harsh-temperature, high-noise automotive subsystems where pin compatibility and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum clock frequency supported by 74AHCT157D-Q100?
The device does not operate on a clock; it is combinational logic with propagation delay as the critical timing parameter. With tpd = 8.0 ns max (VCC = 5.5 V, CL = 50 pF), it supports data rates up to ~125 MHz in multiplexed control paths, assuming setup/hold margins are met by upstream drivers.
Can 74AHCT157D-Q100 interface directly with 3.3 V microcontrollers?
No - its TTL-compatible inputs require VIH ≥ 2.0 V, but 3.3 V logic may not guarantee sufficient noise margin. Use a level shifter or select 74AHC157D-Q100 for native 3.3 V CMOS compatibility. Direct connection risks marginal HIGH recognition in noisy environments.
Is the SO16 package of 74AHCT157D-Q100 RoHS and REACH compliant?
Yes - Nexperia confirms full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 for the SOT109-1 package. Lead-free matte tin termination and halogen-free molding compound are standard.
Does 74AHCT157D-Q100 support hot insertion or live swapping?
No - it lacks power-on reset, bus-hold, or Ioff protection. Applying VCC before GND or inserting while powered risks latch-up or ESD damage. Always power-cycle the board before replacement, and observe strict ESD handling per ANSI/ESDA S20.20.
74AHCT157D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74AHCT157D-Q100J FAQ
1.How can I place an order for 74AHCT157D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT157D-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 74AHCT157D-Q100J reliable?
The price and inventory of 74AHCT157D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT157D-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHCT157D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT157D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT157D-Q100J?
74AHCT157D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT157D-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 74AHCT157D-Q100J?
For technical support, including 74AHCT157D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT157D-Q100J requirements.
6.How does Aetrix verify that 74AHCT157D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHCT157D-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 74AHCT157D-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHCT157D-Q100J?
All 74AHCT157D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT157D-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 74AHCT157D-Q100J part is unused and in its original packaging.
Return procedure for 74AHCT157D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHCT157D-Q100J Tags
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