ZHCSR63I June 1999 – October 2022 SN65C3243 , SN75C3243
PRODUCTION DATA
| PIN | TYPE | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | C2+ | — | Positive terminal of the voltage-doubler charge-pump capacitor |
| 2 | C2- | — | Negative terminal of the voltage-doubler charge-pump capacitor |
| 3 | V- | Negative charge pump output voltage | |
| 4 | RIN1 | I | RS-232 receiver inputs |
| 5 | RIN2 | ||
| 6 | RIN3 | ||
| 7 | RIN4 | ||
| 8 | RIN5 | ||
| 9 | DOUT1 | O | RS-232 driver outputs |
| 10 | DOUT2 | ||
| 11 | DOUT3 | ||
| 12 | DIN3 | I | Driver inputs |
| 13 | DIN2 | ||
| 14 | DIN1 | ||
| 15 | ROUT5 | O | Receiver outputs |
| 16 | ROUT4 | ||
| 17 | ROUT3 | ||
| 18 | ROUT2 | ||
| 19 | ROUT1 | ||
| 20 | ROUT2B | — | Always-active noninverting receiver output; |
| 21 | INVALID | O | Invalid Output Pin |
| 22 | FORCEOFF | I | Auto Powerdown Control input (Refer to Truth Table) |
| 23 | FORCEON | I | Auto Powerdown Control input (Refer to Truth Table) |
| 24 | C1- | — | Negative terminal of the voltage-doubler charge-pump capacitor |
| 25 | GND | — | Ground |
| 26 | VCC | — | 3-V to 5.5-V supply voltage |
| 27 | V+ | — | Positive charge pump output voltage |
| 28 | C1+ | — | Positive terminal of the voltage-doubler charge-pump capacitor |