| PartNumber | ISL12027AIV27Z | ISL12027AIB27Z-T | ISL12027AIB27Z |
| Description | Real Time Clock REAL TIME CLK/CLNDR W/EEPROM 2 63VSET | Real Time Clock REAL TIME CLK/CLNDR W/EEPROM 2 63VSET | Real Time Clock REAL TIME CLK/CLNDR W/EEPROM 2 63VSET |
| Manufacturer | Renesas Electronics | Intersil | Intersil |
| Product Category | Real Time Clock | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
| RoHS | Y | - | - |
| Packaging | Tube | Tape & Reel (TR) Alternate Packaging | Tube |
| Series | ISL12027A | - | - |
| Brand | Renesas / Intersil | - | - |
| Product Type | Real Time Clocks | - | - |
| Factory Pack Quantity | 96 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Type | - | Clock/Calendar | Clock/Calendar |
| Package Case | - | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | - | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | - | Surface Mount | Surface Mount |
| Features | - | Alarm, Leap Year, Supervisor, Watchdog Timer | Alarm, Leap Year, Supervisor, Watchdog Timer |
| Interface | - | I2C, 2-Wire Serial | I2C, 2-Wire Serial |
| Voltage Supply | - | 2.7 V ~ 5.5 V | 2.7 V ~ 5.5 V |
| Supplier Device Package | - | 8-SOIC | 8-SOIC |
| Memory Size | - | - | - |
| Time Format | - | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | - | YY-MM-DD-dd | YY-MM-DD-dd |
| Voltage Supply Battery | - | 1.8 V ~ 5.5 V | 1.8 V ~ 5.5 V |
| Current Timekeeping Max | - | 10μA ~ 20μA @ 2.7V ~ 5.5V | 10μA ~ 20μA @ 2.7V ~ 5.5V |