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| | IC RTC CLK/CALENDAR SPI 22-SON | | | PCB Symbol, Footprint & 3D Model | SPI | Surface Mount | -40°C ~ 85°C | 1.6V ~ 5.5V | - | RX-4581NB | Clock/Calendar | Alarm, Leap Year, SRAM | 16B | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | 22-SMD, 20 Leads, Flat Leads | 22-SON | - |
| | IC RTC CLK/CALENDAR SER 12-VSOJ | | 联系我们 | PCB Symbol, Footprint & 3D Model | 3-Wire Serial | Surface Mount | -40°C ~ 85°C | 1.6V ~ 5.5V | - | RX-4581NB | Clock/Calendar | Alarm, Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.7µA ~ 0.9µA @ 3V ~ 5V | 12-TFSOJ (0.094", 2.40mm Width) | 12-VSOJ | - |
| | IC RTC CLK/CALENDAR SPI 22-SON | | 联系我们 | PCB Symbol, Footprint & 3D Model | SPI | Surface Mount | -40°C ~ 85°C | 1.6V ~ 5.5V | - | RX-4581NB | Clock/Calendar | Alarm, Leap Year, SRAM | 16B | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | 22-SMD, 20 Leads, Flat Leads | 22-SON | - |
| | IC RTC CLK/CALENDAR SPI 22-SON | | 联系我们 | PCB Symbol, Footprint & 3D Model | SPI | Surface Mount | -40°C ~ 85°C | 1.6V ~ 5.5V | - | RX-4581NB | Clock/Calendar | Alarm, Leap Year, SRAM | 16B | HH:MM:SS (24 hr) | YY-MM-DD-dd | - | 0.8µA ~ 1.2µA @ 3V ~ 5V | 22-SMD, 20 Leads, Flat Leads | 22-SON | - |