Maxim Integrated DS12885+, Clock/Calendar RTC, Parallel Interface, 114B NVSRAM, Alarm, Daylight Savings, Leap Year, Square Wave Output, 4.5V-5.5V Supply, 0°C-70°C, 24-DIP (0.600", 15.24mm), Through Hole, Tube.
| Parameter | Value |
|---|---|
| Type | Clock/Calendar |
| Mounting | Through Hole |
| Supply voltage | 4.5V ~ 5.5V |
| Voltage - supply, battery | 2.5V ~ 4V |
| Current - timekeeping | 15mA @ 4.5V ~ 5.5V |
| Interface | Parallel |
| Operating temperature | 0°C ~ 70°C |
| Package | Tube |
| Features | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output |
| Date format | YY-MM-DD-dd |
| Memory size | 114B |
| Time format | HH:MM:SS (12/24 hr) |
| Case | 24-DIP (0.600\", 15.24mm) |
The battery-backup input accepts 2.5 V to 4 V. Timekeeping current maxes at 15 mA on the main supply.
That means it belongs in office equipment, appliances, or indoor instrumentation — not in a motor drive cabinet or an outdoor telecom enclosure. If the board sees freeze-thaw or engine-bay heat, this is not the part.
No end-of-life notice, no last-time-buy window.
The DS12885+ is pin-compatible with the DS12887 and shares the same parallel interface and 24-DIP footprint. The key difference is that the DS12885+ requires an external battery on the VBAT pin, whereas the DS12887 has an integrated battery. Verify the battery circuit on your board before swapping.