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Nexperia USA Inc. 74AHCT157PW-Q100J
- Part No.:
- 74AHCT157PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT157PW-Q100J.pdf
- Description:
- IC MULTIPLEXER 4 X 2:1 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,490
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Product details
Overview
74AHCT157PW-Q100 from Nexperia is an automotive-qualified quad 2-input multiplexer in TSSOP16 package, implementing four independent 2:1 data selectors with active-low enable (E) and common select (S). It operates at 4.5 V to 5.5 V, delivers propagation delays as low as 3.2 ns (CL = 15 pF), supports TTL-level inputs, and is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) for use in engine control units and ADAS domain controllers.
For engineers reviewing the 74AHCT157PW-Q100 datasheet, 74AHCT157PW-Q100 pinout, 74AHCT157PW-Q100 application, or 74AHCT157PW-Q100 equivalent, this page provides verified functional behavior, automotive-grade thermal and ESD specs, TSSOP16 layout details, and direct substitution guidance for logic-level signal routing in safety-critical vehicle subsystems.
Technical Context
The device implements four parallel 2:1 multiplexers sharing one select line (S) and one active-low enable (E), enabling simultaneous selection of four-bit-wide data paths from two sources. Each output (1Y–4Y) follows Y = E̅ × (I₀ × S̅ + I₁ × S), supporting deterministic combinatorial logic generation.
All inputs feature Schmitt-trigger action and tolerate voltages up to 5.5 V regardless of VCC, while outputs drive ±8 mA at VCC = 4.5 V. The design includes input clamping diodes, HBM ESD protection >2000 V, and CDM >1000 V - meeting automotive robustness requirements without external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5 V automotive microcontroller I/O rails and stable operation across battery voltage transients. |
| Propagation Delay (tpd) | 3.2 ns (typ, CL = 15 pF) - enables high-speed data routing in real-time control loops with sub-10 ns timing margins. |
| Input Voltage Thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) - guarantees reliable TTL-level recognition even under noisy supply conditions. |
| Output Drive Strength | ±8 mA (VOH/VOL @ VCC = 4.5 V) - sufficient to directly drive multiple CMOS/TTL inputs or small capacitive loads (<50 pF). |
| Operating Temperature | −40 °C to +125 °C - validated for under-hood placement in powertrain and chassis modules per AEC-Q100 Grade 1. |
| ESD Protection | HBM >2000 V, CDM >1000 V - eliminates need for external ESD suppression in CAN/LIN node interface logic stages. |
| Power Dissipation | Ptot = 500 mW (Tamb ≤ 91 °C), derates 8.5 mW/K above - supports continuous operation in sealed junction boxes with passive cooling. |
Pinout & Package
TSSOP16 package (SOT403-1): 4.4 mm body width, 0.65 mm lead pitch, 16-terminal surface-mount outline with exposed pad option (not applicable here); optimized for AOI-compatible reflow and high-density PCB layouts in automotive ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S (Select) | Common 2:1 selector control for all four channels; HIGH selects I1 inputs, LOW selects I0 inputs. |
| 2, 5, 11, 14 | 1I0, 2I0, 3I0, 4I0 | Data inputs from source 0; Schmitt-triggered for noise immunity on long harness traces. |
| 3, 6, 10, 13 | 1I1, 2I1, 3I1, 4I1 | Data inputs from source 1; accepts VI up to 5.5 V independent of VCC level. |
| 4, 7, 9, 12 | 1Y, 2Y, 3Y, 4Y | CMOS-compatible outputs; actively driven LOW when E = HIGH (enable inactive). |
| 8 | GND | Digital ground reference; must be low-impedance connection to minimize switching noise coupling. |
| 15 | E (Enable) | Active-LOW global enable; forces all outputs LOW when HIGH, enabling bus isolation during reset. |
| 16 | VCC | Positive supply (4.5–5.5 V); requires local 100 nF ceramic decoupling within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with full parametric testing - suitable for engine bay and transmission control modules. |
| TTL-compatible input thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) - interoperable with legacy 5 V microcontrollers and sensor interfaces without level shifters. |
| Input overvoltage tolerance | Accepts VI up to 5.5 V regardless of VCC - prevents latch-up when interfacing with higher-voltage sensors or diagnostics lines. |
| Low propagation skew | Matched tPLH/tPHL <0.5 ns across all four channels - ensures synchronized data routing in time-critical sampling paths. |
| Multiple package options | TSSOP16 (SOT403-1) footprint enables high-density routing and automated optical inspection of solder joints - critical for ASIL-B production lines. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
|
Use Scenario: Selecting between primary and backup crankshaft position sensor signals during fault detection. IC Role / Device Role / Timing Role: Quad 2:1 multiplexer routing dual-sensor data to MCU ADC inputs under software-controlled S/E logic. Use Value: Enables fail-operational sensor redundancy without additional MCU GPIOs or FPGA resources. |
Use Scenario: Switching camera image data streams between forward-facing and rear-view sensors in multi-camera fusion systems. IC Role / Device Role / Timing Role: Simultaneous 4-bit path selection for parallel pixel bus routing controlled by domain controller. Use Value: Reduces interconnect complexity and PCB layer count versus discrete gate solutions. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|
Use Scenario: Multiplexing door lock actuator feedback signals from left/right front/rear doors into a single diagnostic bus. IC Role / Device Role / Timing Role: Enabling centralized status monitoring via shared MCU input pins with minimal latency. Use Value: Low-cost consolidation of four analog/digital feedback lines into one monitored path. |
Use Scenario: Routing torque sensor calibration data from primary and secondary sensors to EPS MCU during startup self-test. IC Role / Device Role / Timing Role: Providing deterministic, glitch-free selection of redundant torque measurements under E enable control. Use Value: Meets ASIL-C timing integrity requirements for sensor validation sequences. |
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 |
|---|---|---|---|
| 74AHC157PW-Q100 | CMOS-input version; VIH = 3.85 V (min) at VCC = 5.5 V; lower ICC (4 μA typ) | Requires CMOS-level drivers; unsuitable for direct TTL interface without level translation | Select when interfacing with 3.3 V or mixed-voltage logic domains where input threshold matching is critical |
| SN74LV157APWR | Texas Instruments part; VCC = 2.0–5.5 V; tpd = 5.5 ns (CL = 50 pF); non-automotive grade | Lacks AEC-Q100 qualification; rated only to +85 °C ambient | Acceptable for non-safety-critical cabin electronics but not for powertrain or ADAS deployment |
Compared with 74AHC157PW-Q100, the AHCT variant offers guaranteed TTL compatibility and faster propagation at 5 V, while SN74LV157APWR provides broader VCC range but no automotive qualification - making 74AHCT157PW-Q100 the only drop-in solution for ASIL-B signal routing requiring both speed and qualification.
Availability
74AHCT157PW-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and electric power steering modules requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74AHCT157PW-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 Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in automotive-qualified standard products.
This device belongs to Nexperia's AEC-Q100-qualified logic portfolio, designed specifically for robust signal routing and data selection in harsh automotive environments where reliability, thermal stability, and ESD resilience are mandatory.
FAQ
Is 74AHCT157PW-Q100 pin-compatible with 74LS157?
Yes - it is pin-compatible with 74LS157 and other industry-standard 16-pin quad 2:1 multiplexers (e.g., 74HC157, 74HCT157). Pin functions match exactly: S (pin 1), E (pin 15), VCC (pin 16), GND (pin 8), and all I/O assignments align per JEDEC MS-012 and MO-153 outlines.
What is the maximum clock/data rate supported by this multiplexer?
The device does not operate on a clock; it is combinational. Its usable data rate depends on propagation delay and load capacitance. With CL = 15 pF and VCC = 5.0 V, tpd = 3.2 ns (typ), supporting clean signal routing up to ~150 MHz toggle rate in point-to-point configurations with proper termination.
Can unused inputs be left floating?
No - all inputs must be terminated. Floating inputs cause increased ICC, erratic switching, and potential ESD susceptibility. Unused I0/I1 pins should be tied to GND or VCC; S and E must be actively driven or pulled to defined logic states using ≥10 kΩ resistors.
Does this part support hot insertion or live swapping?
No - it lacks hot-swap protection circuitry. Power sequencing must follow VCC before inputs, and inputs must remain within −0.5 V to VCC + 0.5 V during power-up/down. Use external series resistors (≥100 Ω) if hot-plug risk exists in system architecture.
74AHCT157PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74AHCT157PW-Q100J FAQ
1.How can I place an order for 74AHCT157PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT157PW-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 74AHCT157PW-Q100J reliable?
The price and inventory of 74AHCT157PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT157PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHCT157PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT157PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT157PW-Q100J?
74AHCT157PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT157PW-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 74AHCT157PW-Q100J?
For technical support, including 74AHCT157PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT157PW-Q100J requirements.
6.How does Aetrix verify that 74AHCT157PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHCT157PW-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 74AHCT157PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHCT157PW-Q100J?
All 74AHCT157PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT157PW-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 74AHCT157PW-Q100J part is unused and in its original packaging.
Return procedure for 74AHCT157PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHCT157PW-Q100J Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
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74CBTLV3257PW,118
Nexperia USA Inc.
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SN74CBTLV3257PWR
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74CBTLV3257GUX
Nexperia USA Inc.
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74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
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SN74CB3Q3245PWR
Texas Instruments
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SN74CB3Q3257RGYR
Texas Instruments
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TCA9543APWR
Texas Instruments
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TCA9546APWR
Texas Instruments
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SN74HC138N
Texas Instruments
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