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74LVC157ABQ

Nexperia · Logic ICs · DHVQFN-16-EP(2.5x3.5)

74LVC157ABQ from Nexperia, in a DHVQFN-16-EP(2.5x3.5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	S	input	Common data select input: HIGH selects data source 1 and LOW selects data source 0 for all four multiplexers.
2	1I0	input	Data input from source 0 for multiplexer 1, selected when S is LOW and E is LOW.
3	1I1	input	Data input from source 1 for multiplexer 1, selected when S is HIGH and E is LOW.
4	1Y	output	Multiplexer 1 output, forced LOW when E is HIGH.
5	2I0	input	Data input from source 0 for multiplexer 2, selected when S is LOW and E is LOW.
6	2I1	input	Data input from source 1 for multiplexer 2, selected when S is HIGH and E is LOW.
7	2Y	output	Multiplexer 2 output, forced LOW when E is HIGH.
8	GND	power_in	Ground (0 V) reference for all voltages on the device.
9	3Y	output	Multiplexer 3 output, forced LOW when E is HIGH.
10	3I1	input	Data input from source 1 for multiplexer 3, selected when S is HIGH and E is LOW.
11	3I0	input	Data input from source 0 for multiplexer 3, selected when S is LOW and E is LOW.
12	4Y	output	Multiplexer 4 output, forced LOW when E is HIGH.
13	4I1	input	Data input from source 1 for multiplexer 4, selected when S is HIGH and E is LOW.
14	4I0	input	Data input from source 0 for multiplexer 4, selected when S is LOW and E is LOW.
15	E	input	Enable input (active LOW for data selection); a HIGH forces all outputs 1Y to 4Y LOW.
16	VCC	power_in	Supply voltage; 1.2 V to 3.6 V wide range for operation, with 1.65 V minimum in recommended conditions.
17	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Nexperia
Package	DHVQFN-16-EP(2.5x3.5)
Category	Logic ICs
Pins	17

CAD (KiCad official)

Symbol: 74LVC157ABQ
Footprint: Package_DFN_QFN:DHVQFN-16-1EP_2.5x3.5mm_P0.5mm_EP1x2mm
3D model: DHVQFN-16-EP(2.5x3.5), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal VQFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
3D model files: 74lvc157abq-etched.step / 74lvc157abq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lvc157abq.step / 74lvc157abq.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Nexperia datasheet (15 pp, sha256 4a4064e302063e53, retrieved 2026-10-17, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF