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| PartNumber | RTC-8564NB:B3:ROHS | RTC-8564NB:B0:ROHS | RTC-8564NB:B:ROHS |
| Description | Real Time Clock 32.768KHz 3.0Volts -40C +85C | IC RTC CLK/CALENDAR I2C 22-SON | IC RTC CLK/CALENDAR I2C 22-SON |
| Manufacturer | Epson | EPSON | - |
| Product Category | Real Time Clock | Clock/Timing - Real Time Clocks | - |
| RoHS | E | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SON-22 | - | - |
| RTC Bus Interface | Serial, I2C | - | - |
| Date Format | DW:DM:M:Y | YY-MM-DD-dd | - |
| Time Format | HH:MM:SS | HH:MM:SS | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 1.8 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | Tape & Reel (TR) Alternate Packaging | - |
| Function | Alarm, Calendar, Clock, Timer | - | - |
| Product | Real Time Clocks | - | - |
| Series | RTC | - | - |
| Brand | Epson Timing | - | - |
| Product Type | Real Time Clock | - | - |
| Factory Pack Quantity | 250 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Type | - | Clock/Calendar | - |
| Package Case | - | 22-SMD (20 leads) Flat Leads | - |
| Operating Temperature | - | -40°C ~ 85°C | - |
| Mounting Type | - | Surface Mount | - |
| Features | - | Alarm, Y2K | - |
| Interface | - | I2C, 2-Wire Serial | - |
| Voltage Supply | - | 1.8 V ~ 5.5 V | - |
| Supplier Device Package | - | 22-SON | - |
| Memory Size | - | - | - |
| Voltage Supply Battery | - | - | - |
| Current Timekeeping Max | - | 0.7μA ~ 0.8μA @ 3V ~ 5V | - |