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74LVC257A

Features: •Wide supply voltage range of 1.2 to 3.6 V•In accordance with JEDEC standard no. 8-1A•CMOS lower power consumption•Direct interface with TTL levels•Output drive capability 50 PinoutSpecifications SYMBOL PARAMETER CONDITIONS RATING UNIT VCC DC su...

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74LVC257A: Features: •Wide supply voltage range of 1.2 to 3.6 V•In accordance with JEDEC standard no. 8-1A•CMOS lower power consumption•Direct interface with TTL levels•Output dri...

74LVC257A Data Sheet

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Part Number:
74LVC257A
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Features:

•Wide supply voltage range of 1.2 to 3.6 V
•In accordance with JEDEC standard no. 8-1A
•CMOS lower power consumption
•Direct interface with TTL levels
•Output drive capability 50



Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS RATING UNIT
VCC DC supply voltage   0.5 to +6.5 V
IIK DC input diode current V1<0 50 mA
V1 DC input voltage Note 2 0.5 to +5.5 V
IOK DC output diode current VO>VCC or VO<O ±50 mA
VO DC output voltage; output HIGH or LOW Note 2 0.5 to VCC +0.5 V
DC output voltage; output 3-State Note 2 0.5 to 6.5
IO DC output source or sink current VO = 0 to VCC ±50 mA
IGND, ICC DC VCC or GND current   ±100 mA
Tstg Storage temperature range   65 to +150 °C
PTOT Power dissipation per package
plastic mini-pack (SO)
plastic shrink mini-pack (SSOP and TSSOP)		 above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K		 500
500		 mW



Description

The 74LVC257A is a high-performance, low-power, low-voltage,Si-gate CMOS device and superior to most advanced CMOS compatible TTL families.

Inputs of the 74LVC257A 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</a>  is HIGH.




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