Specs side by side
2 parts compared · 17 differing specs across 17 total parameters.
| Parameter | ||
|---|---|---|
| Operating temperature | 0°C ~ 70°C | - |
| Supply voltage | 2V ~ 5.5V | - |
| Voltage - Supply, Battery | 2V ~ 5.5V | - |
| Memory | 31B | - |
| Case | 8-DIP (0.300\", 7.62mm) | SO-8 (DS1307) / SO-16 (DS3231) |
| Package | Tube | - |
| Current - Timekeeping | 0.3µA ~ 1µA @ 2V ~ 5V | - |
| Component Category | - | Real-Time Clocks (I2C) |
| Date Format | YY-MM-DD-dd | - |
| Features | Leap Year, NVSRAM, Trickle-Charger | - |
| Interface | 3-Wire Serial | - |
| Market Reality | - | This pair is the RTC story of the hobby and light-industrial world: the DS1307, a plain I2C clock that drifts with its external crystal, and the DS3231, the same register lifestyle with an integrated TCXO that holds about a minute a year. The confusion is structural: both answer at I2C address 0x68, both run on almost the same register map, most libraries swap between them with a type change - and they are physically incompatible, an 8-pin SO-8 against a 16-pin body with the crystal inside. On modules the choice is a purchase decision; on a PCB it is a layout decision; and the classic field mistake is treating the chip-level swap as the module-level one. |
| Mounting | Through Hole | - |
| Role In Circuit | - | Original Reference Part |
| Sourcing Status | - | Active Shenzhen Spot Sourcing (24–48h) |
| Time Format | HH:MM:SS (12/24 hr) | - |
| Type | Clock/Calendar | - |
Parts
- DS1302 · analog-devices-inc-maxim-integrated
- DS1307 / DS3231 · analog-devices