| PartNumber | 1338-18DCGI | 1338-18DCGI8 | 1338-18DVGI |
| Description | Real Time Clock 1RTC BASE | Real Time Clock 1RTC BASE | Real Time Clock 1RTC BASE |
| Manufacturer | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) | IDT (Integrated Device Technology) |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | Y |
| Package / Case | SOIC-8 | SOIC-8 | TSSOP-8 |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| Packaging | Tube | Reel | Tube |
| Height | 1.5 mm | 1.5 mm | 0.97 mm |
| Length | 4.9 mm | 4.9 mm | 3 mm |
| Series | 1338 | 1338 | 1338 |
| Width | 3.9 mm | 3.9 mm | 3 mm |
| Brand | IDT | IDT | IDT |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clocks |
| Factory Pack Quantity | 97 | 2500 | 96 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 1338 IDT1338-18DCGI | 1338 IDT1338-18DCGI8 | 1338 IDT1338-18DVGI |
| Unit Weight | 0.019048 oz | - | 0.004938 oz |
| Mounting Style | - | - | SMD/SMT |
| RTC Bus Interface | - | - | Serial, I2C |
| Date Format | - | - | YY-MM-DD-dd |
| Time Format | - | - | HH:MM:SS (12 hr, 24 hr) |
| RTC Memory Size | - | - | 56 B |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 1.8 V |
| Minimum Operating Temperature | - | - | - 40 C |
| Maximum Operating Temperature | - | - | + 85 C |
| Function | - | - | Calendar, Clock |
| Memory Type | - | - | NV RAM |
| Type | - | - | Serial RTC |
| Moisture Sensitive | - | - | Yes |
| Operating Supply Current | - | - | 7.5 uA |