| PartNumber | AB1811-T3 | AB1813-T3 | AB1814-T3 |
| Description | Real Time Clock Interface SPI HH:MM:SS:hh 12/24 hr | Real Time Clock Interface SPI HH:MM:SS:hh 12/24 hr | IC RTC CLK/CALENDAR SPI 16-QFN |
| Manufacturer | ABRACON | ABRACON | Abracon LLC |
| Product Category | Real Time Clock | Real Time Clock | Clock/Timing - Real Time Clocks |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-16 | QFN-16 | - |
| RTC Bus Interface | Serial, SPI | Serial, SPI | - |
| Time Format | HH:MM:SS:hh | HH:MM:SS:hh | HH:MM:SS:hh |
| Supply Voltage Max | 3.6 V | 3.6 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 | Digi-ReelR |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | - |
| Series | AB18xx | AB18xx | - |
| Brand | ABRACON | ABRACON | - |
| Product Type | Real Time Clocks | Real Time Clocks | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.002014 oz | 0.002014 oz | - |
| Type | - | - | Clock/Calendar |
| Package Case | - | - | 16-VFQFN Exposed Pad |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Features | - | - | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer |
| Interface | - | - | SPI |
| Voltage Supply | - | - | 1.7 V ~ 3.6 V |
| Supplier Device Package | - | - | 16-QFN (3x3) |
| Memory Size | - | - | 256B |
| Date Format | - | - | YY-MM-DD-dd |
| Voltage Supply Battery | - | - | 1.5 V ~ 3.6 V |
| Current Timekeeping Max | - | - | 0.17μA ~ 0.22μA @ 1.8V ~ 3V |