CD74HC138EE4 Overview
Total pins on the rotary encoders are 16.It is recommended that 2 V exceeds the minimum voltage required for the supply.As soon as the maximum supply voltage (Vsup) of a encoder motor reaches 6 V, the encoder motor is considered to be in operation.The total number of bits on an encoder is 8, which is the number of bits on the chip.This rotary encoder can also be used to discover TWO ACTIVE LOW AND ONE ACTIVE HIGH ENABLE INPUTS.
CD74HC138EE4 Features
8 bits

CD74HC138EE4 Applications
There are a lot of Texas Instruments
CD74HC138EE4 Encoders, Decoders, Converters applications.

Home Automation
Industrial Automation
Remote Status Monitoring
Lighting Control
Low-voltage operation
Extended temperature range
Low power consumption
UART Interfacing
Infrared Data Communications
Audio

Factory Lead Time	6 Weeks
Surface Mount	NO
Number of Terminals	16
Package Shape	RECTANGULAR
JESD-609 Code	e4
ECCN Code	EAR99
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Additional Feature	TWO ACTIVE LOW AND ONE ACTIVE HIGH ENABLE INPUTS
HTS Code	8542.39.00.01
Packing Method	TUBE
Terminal Position	DUAL
Terminal Form	THROUGH-HOLE
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Number of Functions	1
Terminal Pitch	2.54 mm
Reach Compliance Code	compliant
Pin Count	16
JESD-30 Code	R-PDIP-T16
Qualification Status	Not Qualified
Brand Name	Texas
Supply Voltage-Max (Vsup)	6 V
Power Supplies	2/6 V
Temperature Grade	MILITARY
Supply Voltage-Min (Vsup)	2 V
Number of Bits	8
Family	HC/UH
Seated Height-Max	5.08 mm
Output Polarity	INVERTED
Logic IC Type	OTHER DECODER/DRIVER
Max I(ol)	0.0052 A
Propagation Delay (tpd)	225 ns
Power Supply Current-Max (ICC)	0.08 mA
Input Conditioning	STANDARD
Length	19.305 mm
Width	7.62 mm