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| PartNumber | DS1231S-20+ | DS1231S-20+TR | DS1231S-20/35 |
| Description | Supervisory Circuits Power Monitor | ||
| Manufacturer | Maxim Integrated | - | - |
| Product Category | Supervisory Circuits | - | - |
| RoHS | Y | - | - |
| Type | Voltage Supervisory | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOIC-16 | - | - |
| Threshold Voltage | 3.3 V to 5.5 V | - | - |
| Number of Inputs Monitored | 1 Input | - | - |
| Output Type | Active Low, Open Drain | - | - |
| Manual Reset | Manual Reset | - | - |
| Watchdog Timers | No Watchdog | - | - |
| Battery Backup Switching | No Backup | - | - |
| Reset Delay Time | 500 ms | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Series | DS1231S | - | - |
| Packaging | Tube | - | - |
| Height | 2.35 mm (Max) | - | - |
| Length | 10.5 mm (Max) | - | - |
| Width | 7.6 mm (Max) | - | - |
| Brand | Maxim Integrated | - | - |
| Overvoltage Threshold | 5.5 V | - | - |
| Undervoltage Threshold | 3.3 V | - | - |
| Chip Enable Signals | No Chip Enable | - | - |
| Operating Supply Current | 0.5 mA | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Power Fail Detection | Yes | - | - |
| Product Type | Supervisory Circuits | - | - |
| Factory Pack Quantity | 46 | - | - |
| Subcategory | PMIC - Power Management ICs | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Part # Aliases | 90-1231S+200 DS1231S | - | - |
| Unit Weight | 0.023492 oz | - | - |