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MAX232 Datasheet(PDF) 33 Page - Maxim Integrated Products |
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MAX232 Datasheet(HTML) 33 Page - Maxim Integrated Products |
33 / 36 page +5V-Powered, Multichannel RS-232 Drivers/Receivers ______________________________________________________________________________________ 33 400k Ω +10V TO -10V VOLTAGE INVERTER +5V TO +10V VOLTAGE DOUBLER VCC 400k Ω GND +5V +5V +5V +5V +5V 18 25 24 23 21 20 1 1 µF 1 µF 1 µF 1 µF 1 µF 14 3 16 5k Ω 5k Ω 5k Ω 5k Ω 5k Ω 5k Ω 5k Ω 5k Ω ENTA C2- C2+ C1- C1+ TA1OUT TA1IN TA3OUT TA3IN 8RA1IN 10 RA1OUT 7RA2IN 11 RA2OUT 6RA3IN 12 RA3OUT 5RA4IN 13 19 RA4OUT 9 27 26 22 44 31 42 29 37 35 38 34 39 33 40 32 36 ENRA ENTB V- V+ TB1OUT TB1IN TB3OUT TB3IN RB1IN RB1OUT RB2IN RB2OUT RB3IN RB3OUT RB4IN RB4OUT ENRB 400k Ω +5V 2 15 TA2OUT TA2IN +5V 43 30 TB2OUT TB2IN 400k Ω +5V 4 17 TA4OUT TA4IN +5V 41 28 TB4OUT TB4IN 44 1 2 3 440 41 42 43 5 21 24 26 25 27 28 22 23 19 20 8 9 10 11 12 13 14 15 16 17 29 30 31 32 33 34 35 36 37 38 TA4IN MAX248 PLCC TOP VIEW RB2IN RB1IN RB1OUT RB2OUT RB3OUT RB4OUT TB1IN TB2IN TB3IN TA3IN TA2IN TA1IN RA4OUT RA3OUT RA2OUT RA1OUT ENRA RA1IN 7 39 RB3IN RA2IN 6 18 ENRB MAX248 FUNCTIONAL DESCRIPTION 8 RECEIVERS 4 A-SIDE RECEIVERS 4 B-SIDE RECEIVERS 8 TRANSMITTERS 4 A-SIDE TRANSMITTERS 4 B-SIDE TRANSMITTERS 4 CONTROL PINS ENABLE RECEIVER A-SIDE (ENRA) ENABLE RECEIVER B-SIDE (ENRB) ENABLE RECEIVER A-SIDE (ENTA) ENABLE RECEIVER B-SIDE (ENTB ) Figure 24. MAX248 Pin Configuration and Typical Operating Circuit |
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Descripción similar - MAX232 |
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