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MAX253 Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX253 Datasheet(HTML) 8 Page - Maxim Integrated Products |
8 / 18 page Transformer Driver for Isolated RS-485 Interface 8 _______________________________________________________________________________________ C3 0.1µF C1 0.1µF C2 22µF ISO 5V ISOLATION BARRIER 3.3V VIN MAX253 D1 D2 GND1 GND2 VCC 1 8 6 27 N.C. 5 1N5817 1N5817 C5 0.1µF SD 4 ON / OFF 390 Ω *74HC04 DE RO 390 Ω *74HC04 DI 3.3k Ω 1 3 5 4 6 1 2 4 3 5 4 1 3 6 *74HC04 *74HC04 OR EQUIVALENT ** SEE TABLE 2 MAX667 5 64 SHDN SET GND MAX481 MAX483 MAX485 MAX487 5 2 RE GND C4 22µF IN OUT 82 1N5817 390 Ω 4 3 1 8 6 7 DI DE RO A B PC410 / 417 PC357T PC410 / 417 1N5817 FS 3 1CT:2.1CT** VCC 3.3k Ω 3.3k Ω 485 I/O Figure 4. Typical RS-485 Application Circuit, 3.3V Configuration |
Similar Part No. - MAX253_10 |
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Similar Description - MAX253_10 |
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