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ST3243CDR Datasheet(PDF) 2 Page - STMicroelectronics |
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ST3243CDR Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 11 page ST3243 2/11 ORDERING CODES PIN DESCRIPTION Type Temperature Range Package Comments ST3243CD 0 to 70 °C SO-28 (Tube) 27parts per tube / 12tube per box ST3243BD -40 to 85 °C SO-28 (Tube) 27parts per tube / 12tube per box ST3243CDR 0 to 70 °C SO-28 (Tape & Reel) 1000 parts per reel ST3243BDR -40 to 85 °C SO-28 (Tape & Reel) 1000 parts per reel ST3243CPR 0 to 70 °C SSOP-28 (Tape & Reel) 1350 parts per reel ST3243BPR -40 to 85 °C SSOP-28 (Tape & Reel) 1350 parts per reel ST3243CTR 0 to 70 °C TSSOP28 (Tape & Reel) 2500 parts per reel ST3243BTR -40 to 85 °C TSSOP28 (Tape & Reel) 2500 parts per reel PlN N° SYMBOL NAME AND FUNCTION 1 C2+ Positive Terminal of Inverting Charge Pump Capacitor 2 C2- Negative Terminal of Inverting Charge Pump Capacitor 3 V- -5.5V Generated by the Charge Pump 4 R1IN First Receiver Input Voltage 5 R2IN Second Receiver Input Voltage 6 R3IN Third Receiver Input Voltage 7 R4IN Fourth Receiver Input Voltage 8 R5IN Fifth Receiver Input Voltage 9 T1OUT First Transmitter Output Voltage 10 T2OUT Second Transmitter Output Voltage 11 T3OUT Third Transmitter Output Voltage 12 T3IN Third Transmitter Input Voltage 13 T2IN Second Transmitter Input Voltage 14 T1IN First Transmitter Input Voltage 15 R5OUT Fifth Receiver Output Voltage 16 R4OUT Fourth Receiver Output Voltage 17 R3OUT Third Receiver Output Voltage 18 R2OUT Second Receiver Output Voltage 19 R1OUT First Receiver Output Voltage 20 R2OUTB Non-inverting Complementary Receiver Output, always active for wake-up 21 INVALID Output of the valid signal detector. Indicates if a valid RS-232 level is present on receiver inputs logic "1" 22 FORCEOFF Drive low to shut down transmitters and on-board power supply. This over-rides all automatic circuitry and FORCEON 23 FORCEON Drive high to override automatic circuitry keeping transmitters on (FORCEOFF must be high) 24 C1- Negative Terminal of Voltage- Charge Pump Capacitor 25 GND Ground 26 VCC Supply Voltage 27 V+ 5.5V Generated by the Charge Pump 28 C1+ Positive Terminal of Voltage- Charge Pump Capacitor |
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