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HCT251

Features: · True and complement outputs· Both outputs are 3-state for further multiplexer expansion· Multifunction capability· Permits multiplexing from n-lines to one line· Output capability: standard· ICC category: MSIPinoutDescriptionThe 74HC/HCT251 are high-speed Si-gate CMOS devices and are p...

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SeekIC No. : 004359888 Detail

HCT251: Features: · True and complement outputs· Both outputs are 3-state for further multiplexer expansion· Multifunction capability· Permits multiplexing from n-lines to one line· Output capability: stand...

HCT251 Data Sheet

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Part Number:
HCT251
Supply Ability:
5000

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  • 1~5000
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Upload time: 2024/11/21

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Product Details

Description



Features:

· True and complement outputs
· Both outputs are 3-state for further multiplexer expansion
· Multifunction capability
· Permits multiplexing from n-lines to one line
· Output capability: standard
· ICC category: MSI


Pinout

Connection Diagram


Description

The 74HC/HCT251 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT251 are the logic implementations of single-pole 8-position switches with the state of three select inputs (S0, S1, S2) controlling the switch positions. Assertion (Y) and negation (Y) outputs are both provided. The output enable input (OE) is active LOW. The logic function provided at the output, when activated, is:

Y = OE.(I0.S 0. S1.S 2 + I1.S0.S 1.S 2 + + I2.S 0.S1.S 2 + I3.S0.S1.S 2 + + I4.S 0.S 1.S2 + I5.S0.S 1.S2 + + I6.S 0.S1.S2 + I7.S0.S1.S2)

Both outputs of 74HC/HCT251 are in the high impedance OFF-state (Z) when the output enable input is HIGH, allowing multiplexer expansion by tying the outputs.




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