SNOSBI2C June 1999 – September 2015 LM231 , LM331
PRODUCTION DATA.
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| IOUT | 1 | O | Current Output |
| IREF | 2 | I | Reference Current |
| FOUT | 3 | O | Frequency Output. This output is an open-collector output and requires a pullup resistor. |
| GND | 4 | G | Ground |
| RC | 5 | I | R-C filter input |
| THRESH | 6 | I | Threshold input |
| COMPIN | 7 | I | Comparator Input |
| VS | 8 | P | Supply Voltage |