| Series | RX-4581NB |
| Package | Tape & Reel (TR) |
| Part Status | Last Time Buy |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year, SRAM |
| Memory Size | 16B |
| Time Format | HH:MM:SS (24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | SPI |
| Voltage - Supply | 1.6V ~ 5.5V |
| Voltage - Supply, Battery | - |
| Current - Timekeeping (Max) | 0.8µA ~ 1.2µA @ 3V ~ 5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 22-SMD, 20 Leads, Flat Leads |
| Supplier Device Package | 22-SON |
