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| Part Number | RTC-8564JE:B3:ROHS | RTC-8564JE:B0 ROHS | RTC-8564NB:B3 ROHS | RTC-4543SA:B0 ROHS | RTC-4574SA:B0 ROHS |
| Manufacturer | EPSON | EPSON | EPSON | EPSON | EPSON |
| Series | RTC-8564JE | RTC-8564JE | RTC-8564NB | RTC-4543SA | RTC-4574SA |
| Package/Case | 20-LSSOJ (0.213", 5.40mm Width) | 20-LSSOJ (0.213", 5.40mm Width) | 22-SMD, 20 Leads, Flat Leads | 14-SOIC (0.197", 5.00mm Width) | 14-SOIC (0.197", 5.00mm Width) |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Obsolete | Obsolete |
| Programmable | Not Verified | Not Verified | Not Verified | Not Verified | Not Verified |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Alarm, Y2K | Alarm, Y2K | Alarm, Y2K | Leap Year | Alarm, Leap Year |
| Memory Size | - | - | - | - | - |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS | HH:MM:SS (24 hr) | HH:MM:SS (24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | I2C, 2-Wire Serial | I2C, 2-Wire Serial | I2C, 2-Wire Serial | 3-Wire Serial | 3-Wire Serial |
| Voltage - Supply | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 2.5V ~ 5.5V | 1.6V ~ 5.5V |
| Voltage - Supply, Battery | - | - | - | - | - |
| Current - Timekeeping (Max) | 0.7µA ~ 0.8µA @ 3V ~ 5V | 0.7µA ~ 0.8µA @ 3V ~ 5V | 0.7µA ~ 0.8µA @ 3V ~ 5V | 1µA ~ 3µA @ 2V ~ 5V | 1µA ~ 2µA @ 3V ~ 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Grade | - | - | - | - | - |
| Qualification | - | - | - | - | - |
| Supplier Device Package | 20-VSOJ | 20-VSOJ | 22-SON | 14-SOP | 14-SOP |
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