| Series | RTC-72421 |
| Package | Tube |
| Part Status | Obsolete |
| Type | Clock/Calendar |
| Features | Leap Year |
| Memory Size | - |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | Parallel |
| Voltage - Supply | 4.5V ~ 5.5V |
| Voltage - Supply, Battery | - |
| Current - Timekeeping (Max) | 5µA ~ 10µA @ 2V ~ 5V |
| Operating Temperature | -10°C ~ 70°C |
| Mounting Type | Through Hole |
| Package / Case | 18-DIP (0.300", 7.62mm) |
| Supplier Device Package | 18-DIP |
