NC7SZ157FHX-L22175 Overview
It is embedded in a UDFN-6 package so that it can be taken anywhere.Packing the encoder in a Reel case would be a good idea.The mounting of this motor encoder is in the way of Surface Mount.Multiplexer is a category that can be applied to the type.Ideally, it would be best to package this encoder magnetic in a 6-UDFN (1x1) case.The NC7SZ157 series includes this electrical quadrature encode.I have noticed that the encoder definition has 1 Circuit on it.
NC7SZ157FHX-L22175 Features
In UDFN-6 package
Mounting Type: Surface Mount
1 Circuit circuits

NC7SZ157FHX-L22175 Applications
There are a lot of ON Semiconductor
NC7SZ157FHX-L22175 Encoders, Decoders, Converters applications.

Lighting Control
Low-voltage operation
Extended temperature range
Low power consumption
UART Interfacing
Infrared Data Communications
Audio
Automotive
Broadband
Digital Control

Package / Case	UDFN-6
Mounting Type	Surface Mount
Supplier Device Package	6-UDFN (1x1)
Mounting Style	SMD/SMT
Logic Family	NC7
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Package	Tape & Reel (TR)
Base Product Number	NC7SZ157
Mfr	onsemi
Product Status	Active
Packaging	Reel
Series	NC7SZ157
Operating Temperature	-40°C ~ 85°C
Type	Multiplexer
Voltage - Supply	1.65V ~ 5.5V
Circuit	1 x 2:1
Number of Circuits	1 Circuit
Current - Output High, Low	32mA, 32mA
Logic Type	Multiplexer
Number of Input Lines	2 Input
Voltage Supply Source	Single Supply
Independent Circuits	1
Number of Output Lines	1 Output
Product	Multiplexers