CD74ACT257EE4 Overview
There is an embedded encoder in the PDIP-16 package that contains the encoder.If you are packing the encoder in a Tube case, it is recommended that you do so.Through Hole directs this motor encoder to be mounted.It can be categorized as Data Selector/Multiplexer type.Total pins on the rotary encoders are 16.It is recommended that 4.5 V exceeds the minimum voltage required for the supply.As soon as the maximum supply voltage (Vsup) of a encoder motor reaches 5.5 V, the encoder motor is considered to be in operation.The converter operates with a voltage of 5 V as the supply voltage for it.The total number of bits on an encoder is 4 bit, which is the number of bits on the chip.In order to protect the encoder magnetic, it is recommended that it be packed in a 16-PDIP case.The quadrature encode belongs to the CD74ACT257 series of electrical quadrature encodes.A encoder definition has Quad.
CD74ACT257EE4 Features
In PDIP-16 package
Mounting Type: Through Hole
4 bit bits
Quad circuits

CD74ACT257EE4 Applications
There are a lot of Texas Instruments
CD74ACT257EE4 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
Package / Case	PDIP-16
Mounting Type	Through Hole
Surface Mount	NO
Supplier Device Package	16-PDIP
Number of Terminals	16
Mounting Style	Through Hole
RoHS	Details
Logic Family	ACT
Minimum Operating Temperature	- 55 C
Maximum Operating Temperature	+ 125 C
Package	Tube
Mfr	Texas Instruments
Product Status	Active
Package Shape	RECTANGULAR
Packaging	Tube
Series	CD74ACT257
Operating Temperature	-55°C ~ 125°C
JESD-609 Code	e4
Type	Data Selector/Multiplexer
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
HTS Code	8542.39.00.01
Packing Method	TUBE
Voltage - Supply	4.5V ~ 5.5V
Terminal Position	DUAL
Terminal Form	THROUGH-HOLE
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Number of Functions	4
Terminal Pitch	2.54 mm
Reach Compliance Code	compliant
Pin Count	16
JESD-30 Code	R-PDIP-T16
Function	Multiplexer
Number of Outputs	1
Qualification Status	Not Qualified
Brand Name	Texas
Operating Supply Voltage	5 V
Circuit	4 x 2:1
Supply Voltage-Max (Vsup)	5.5 V
Power Supplies	5 V
Temperature Grade	MILITARY
Supply Voltage-Min (Vsup)	4.5 V
Number of Circuits	Quad
Number of Bits	4 bit
Family	ACT
Number of Inputs	2
Output Characteristics	3-STATE
Current - Output High, Low	24mA, 24mA
Seated Height-Max	5.08 mm
Logic Type	Multiplexer
Operating Temperature Range	- 55 C to + 125 C
Output Polarity	TRUE
Logic IC Type	MULTIPLEXER
Max I(ol)	0.024 A
High Level Output Current	- 24 mA
Propagation Delay (tpd)	10.7 ns
Low Level Output Current	24 mA
Power Supply Current-Max (ICC)	0.08 mA
Number of Input Lines	2 Input
Voltage Supply Source	Single Supply
Independent Circuits	1
Number of Output Lines	1 Output
Product	Selectors / Multiplexers
Height	4.57 mm
Length	19.3 mm
Width	6.35 mm