Specs side by side
2 parts compared · 0 differing specs across 5 total parameters.
| Parameter | ||
|---|---|---|
| Case | SO-8 (DS1307) / SO-16 (DS3231) | SO-8 (DS1307) / SO-16 (DS3231) |
| Component Category | Real-Time Clocks (I2C) | Real-Time Clocks (I2C) |
| 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. | 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. |
| Role In Circuit | Original Reference Part | Original Reference Part |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | Active Shenzhen Spot Sourcing (24–48h) |
Parts
- DS1307 / DS3231 · analog-devices
- DS1307 / DS3231 · analog-devices