74F401PC データシートの表示（PDF） - Fairchild Semiconductor

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74F401PC

CRC Generator/Checker

Fairchild Semiconductor 

Block Diagram

FIGURE 1. Equivalent Circuit for X16 + X15 + X2 + 1

FIGURE 2. Check Word Generation

Note 1: Check word Enable is HIGH while data is being clocked, LOW while transmission of check bits.

Note 2: 74F401 must be reset or preset before each computation.

Note 3: CRC check bits are generated and appended to data bits.

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