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SN74ALS234N 数据表(PDF) 4 Page - Texas Instruments |
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SN74ALS234N 数据表(HTML) 4 Page - Texas Instruments |
4 / 11 page SN74ALS234 64 × 4 ASYNCHRONOUS FIRST IN, FIRST OUT MEMORY SDAS106B − OCTOBER 1986 − REVISED SEPTEMBER 1993 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 timing diagram RST SI D3 − D0 SO Q3 − Q0 IR OR W1 Don’t Care Word 1 Word 2 Invalid† Word 1‡ Word 2 Word 3 Clear Shift In W1 Shift Out W2 Empty Full W2 W1 W2 W63 W64 W1 † The last data word shifted out of the FIFO remains at the output until a new word falls through or a RST pulse clears the FIFO. ‡ While the output data is considered valid only when the OR flag is high, the stored data remains at the outputs. Any additional words written into the FIFO will stack up behind the first word and will not appear at the output until SO is taken low. |
类似零件编号 - SN74ALS234N |
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类似说明 - SN74ALS234N |
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