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74ALS253

Features: 3-State outputs for bus interface and multiplex operationCommon select inputsSeparate output enable inputsPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply voltage 0.5 to +7.0 V VIN Input voltage 0.5 to +7.0 V IIN Input current 30 to +5 mA VOUT Vo...

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SeekIC No. : 004249295 Detail

74ALS253: Features: 3-State outputs for bus interface and multiplex operationCommon select inputsSeparate output enable inputsPinoutSpecifications SYMBOL PARAMETER RATING UNIT VCC Supply voltage ...

74ALS253 Data Sheet

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Part Number:
74ALS253
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

3-State outputs for bus interface and multiplex operation
Common select inputs
Separate output enable inputs


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER RATING UNIT
VCC Supply voltage 0.5 to +7.0 V
VIN Input voltage 0.5 to +7.0 V
IIN Input current 30 to +5 mA
VOUT Voltage applied to output in high output state 0.5 to VCC V
IOUT Current applied to output in Low output state 48 mA
Tamb Operating free-air temperature range 0 to +70 °C
Tstg Storage temperature range 65 to +150 °C



Description

The 74ALS253 has two identical 4-input multiplexers with 3-State outputs  which select 2 bits from four sources by using common select input (S0, S1).  When the individual output enable (OEa, OEb) inputs of the 4-input multiplexers are High,  the outputs are forced to a High impedance (Z) state.

The 74ALS253 is the logic implementation of 2-pole, 4-position switch being determined by the logic levels supplied to the common select inputs.

To avoid exceeding the maximum current ratings of the 74ALS253 when the outputs of the 3-State devices are tied together, all but one device must be in the High impedance state. Therefore, only one output enable must be achieved at a time.




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