Nexperia USA Inc. 74LVC157ADB-Q100J

Overview

74LVC157ADB-Q100 from Nexperia is an automotive-grade quad 2-input multiplexer with active-low enable (E), common select input (S), and true-output logic. It operates from 1.2 V to 3.6 V supply, accepts 5 V-tolerant inputs, and delivers propagation delays as low as 1.0 ns at 3.3 V. It functions as a 4-pole, 2-position logic switch for data routing in mixed-voltage automotive control units.

For engineers reviewing the 74LVC157ADB-Q100 datasheet, 74LVC157ADB-Q100 pinout, 74LVC157ADB-Q100 application, or 74LVC157ADB-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, -40 °C to +125 °C operation, DHVQFN16 package with side-wettable flanks, and 5 V tolerant inputs enabling 3.3 V/5 V level translation in body electronics and ADAS sensor interfaces.

Technical Context

This device implements four independent 2:1 multiplexers sharing one select (S) and one enable (E) control line. Each channel routes either I0 or I1 to its corresponding Y output based on S state, with E overriding all outputs to LOW when HIGH. The logic diagram confirms non-inverting output behavior and strict truth-table compliance per Table 3.

Its CMOS architecture supports direct TTL-level interfacing and meets JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 across voltage ranges. Input clamping and ESD protection (HBM >2000 V, CDM >1000 V) are built-in, and dynamic power dissipation is governed by CPD = 15.9 pF at 3.3 V.

Key Specifications

Pinout & Package

DHVQFN16 package: 2.5 mm × 3.5 mm × 0.85 mm body, no leads, 16 terminals, side-wettable flanks for AOI-compatible solder joint inspection. Thermal pad (pin 9) is GND-connected for enhanced heat dissipation in high-density layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input multiplexer applications.

Compared with SN74LVC157APWR and 74LVC157APW-Q100, the 74LVC157ADB-Q100 uniquely combines AEC-Q100 Grade 1 qualification, DHVQFN16's AOI-ready construction, and superior thermal derating (11.2 mW/K above 106 °C), making it the only choice for volume automotive production requiring zero-defect solder joint verification.

Availability

74LVC157ADB-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, ADAS sensor hubs, instrument clusters, and powertrain control units requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74LVC157ADB-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, with core expertise in automotive-qualified silicon solutions.

The 74LVC157A-Q100 series belongs to Nexperia's automotive logic portfolio, designed specifically to replace legacy 74-series devices in next-generation ECUs where AEC-Q100 compliance, mixed-voltage interoperability, and miniaturized packaging are mandatory.

FAQ

Is the 74LVC157ADB-Q100 pin-compatible with standard 74LVC157A variants?

Yes - the DHVQFN16 pinout (SOT763-1) matches the functional pin mapping of SO16 and TSSOP16 versions per Figure 6. Pin 1 is S, pins 2–3 are 1I0/1I1, pin 4 is 1Y, and so on. Mechanical layout differs, but logic assignment and signal roles are identical across all 74LVC157A-Q100 package variants.

Can the 74LVC157ADB-Q100 operate with a 1.2 V supply while accepting 3.3 V inputs?

No - input voltage must not exceed VCC + 0.5 V per Table 4. At 1.2 V supply, maximum allowed input is 1.7 V. For 3.3 V inputs, VCC must be ≥2.8 V to satisfy the VI ≤ VCC + 0.5 V limit. The 5 V tolerance applies only when VCC is ≥1.65 V and VI ≤ 5.5 V, but VI must remain within the absolute max range relative to GND.

What is the purpose of the exposed thermal pad (pin 9) in the DHVQFN16 package?

Pin 9 is the exposed thermal pad, electrically connected to GND internally. It must be soldered to a PCB GND plane using a thermally optimized land pattern (≥80% copper fill, 0.2 mm stencil) to dissipate heat and maintain junction temperature below 125 °C under worst-case 500 mW loading. Floating the pad violates thermal design rules and risks premature failure.

Does the enable (E) input affect propagation delay measurements?

Yes - E-to-Y propagation delay (Table 7) is separately characterized and ranges from 1.0 ns (min) to 8.5 ns (max) at VCC = 3.0–3.6 V, distinct from S-to-Y or I-to-Y delays. When E is HIGH, outputs are forced LOW regardless of S or inputs; transition timing from E HIGH→LOW to Y valid is governed by this dedicated parameter, critical for synchronous bus enable sequencing.