173-81-774,Interface IC IR SO-16, RE46C165S16F, Microchip
| Interfaces | IR |
| No. of drivers | 1 |
| No. of receivers | 1 |
| Power supply | 6...12 V |
| Package | SO-16 |
| Operating temperature | -25...+75 °C |
| Description | Horn pattern, control time 9 minutes |
| ESD protection | 2 kV |
CMOS Photoelectric Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory
