The 74LVC257A is a high-performance, low-power, low-voltage,Si-gate CMOS device and superior to most advanced CMOS compatible TTL families.Inputs can be driven from either 3.3V or 5.0V devices. In 3-State operation, outputs can handle 5V. This feature allows the use of these devices as translators in a mixed 3.3V/5V environment.The 74LVC257A is a quad 2-input multiplexer with 3-state
outputs,which select 4 bits of data from two sources and are controlled by a common data select input (S). The data inputs from source 0 (1l0 to 4l0) are selected when input S is LOW and the data inputs from source 1 (1l1 to 4l1) are selected when S in HIGH. Data
appears at the outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs.

The 74LVC257A is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs are forced to a high impedance OFF-state when OE is HIGH.
 

1.Pin diagram:

2.Recommended Opearating Conditions and Absolute Maximum Ratings:



3.DC Electrical Characteristics:
Over recommended operating conditions voltages are referenced to GND (ground = 0V)



4.AC Characteristics:
GND = 0 V; tr = tf  2.5 ns; CL = 50 pF; RL = 500Ω; Tamb = -40°C to +85°C

•  5V tolerant inputs/outputs, for interfacing with 5 V logic
•  Wide supply voltage range from 1.2 V to 3.6 V
•  CMOS low-power consumption
•  Direct interface with TTL levels
•  Output drive capability 50Ω transmission lines at 85 °C
•  Complies with JEDEC standard:
   JESD8-7A (1.65 V to 1.95 V)
   JESD8-5A (2.3 V to 2.7 V)
   JESD8-C/JESD36 (2.7 V to 3.6 V)
•  ESD protection:
•  HBM JESD22-A114F exceeds 2000 V
•  MM JESD22-A115B exceeds 200 V
•  CDM JESD22-C101E exceeds 1000 V
•  Specified from -40°C to +85°C and -40°C to +125°C

 

why choose us :
advantage:
1.Produce Range
Yangjiang RUIXIAO Enterprise Co,.Ltd,major in the electronic component , who have wide range of products,
such as IC,resistor , capacitor , mosfet , diodes, module , LED, relay, lcd. pcb board . and so.  the brand involves:SHARP, POWER,NS, ON, ST , IR, VISHAY , TOSHIBA, FAIRCHILD,MICROCHIP, ATMEL,EVERYLIGHT all the kinds  of electronic component you need will be find in  here.

2.Scope of application
the product  is widely used in Automotive industry control,new energy industry,Audio,Home appliances equipment,Communication industry.it can  meet the diverse needs of customers

3.service
with the  "User first, customer first" Company motto, quality assurance ,  economic price , fast Delivery time is our only faith. we will try our best to make every customer to enjoy the  the most flexible,efficient  services.We sincere hope that we can seek the common development and cooperation with  the customer together to achieve a win-win situation.

 

4.Logistics
we can send the goods to the customer's country directly by the international logistics.no matter send by air or by sea. 
we will try our best to let the customer to get the parcel more convenient .
(noted:Not bear  any fee and tax of the transportation cost.)