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| PartNumber | R2023T-E2-F | R2023L-E2 | R2023K-E2 |
| Description | Real Time Clock 2-Wire Real Time Clock IC | Real Time Clock 2-Wire Real Time Clock IC | Real Time Clock, CMOS |
| Manufacturer | Ricoh Electronics | Ricoh Electronics | RICOH |
| Product Category | Real Time Clock | Real Time Clock | IC Chips |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TSSOP-10G-10 | QFN023023-16 | - |
| RTC Bus Interface | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C | - |
| Date Format | BCD format | BCD format | - |
| Time Format | BCD format | BCD format | - |
| Battery Backup Switching | No Backup Switching | No Backup Switching | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 1.7 V | 1.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Reel | - |
| Function | Alarm, Calendar, Clock, Timer Interrupt | Alarm, Calendar, Clock, Timer Interrupt | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | R2023T | R2023L | - |
| Type | CMOS Real-Time Clock and Calendar | CMOS Real-Time Clock and Calendar | - |
| Brand | Ricoh Electronic Devices Company | Ricoh Electronic Devices Company | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 2000 | 3000 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.006102 oz | - | - |