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| Part Number | ISL12059IBZ | ISL12029IBZ | ISL12057IBZ | ISL12058IBZ |
|---|---|---|---|---|
| Manufacturer | Intersil | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Product Status | Obsolete | Obsolete | Active | Active |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Leap Year | Alarm, Leap Year, Supervisor, Watchdog Timer | Alarm, Leap Year | Alarm, Leap Year |
| Memory Size | - | - | - | - |
| Time Format | HH:MM:SS (24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 1.8V ~ 3.6V | 2.7V ~ 5.5V | 1.8V ~ 3.6V | 1.8V ~ 3.6V |
| Voltage - Supply, Battery | - | 1.8V ~ 5.5V | - | - |
| Current - Timekeeping (Max) | 0.65µA @ 1.8V | 10µA ~ 20µA @ 2.7V ~ 5.5V | 0.65µA @ 1.8V | 0.65µA @ 1.8V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 14-SOIC | 8-SOIC | 8-SOIC |
