DS3234 RTC breakout with SPI interface and integrated temperature-compensated crystal oscillator (TCXO). Includes an on-chip 32-byte user SRAM and battery backup; accuracy ±2ppm from 0–40°C.
Ground supply
DS3234 VCC power supply input
Configurable square-wave or alarm interrupt output
SPI clock input
SPI master-in slave-out
SPI master-out slave-in
SPI active-low chip select
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| GND | 7-pin header | Ground | Ground supply | 0V |
| VCC | 7-pin header | Power | DS3234 VCC power supply input | 2.0-5.5V |
| SQW | 7-pin header | Signal | Configurable square-wave or alarm interrupt output | |
| CLK | 7-pin header | Signal | SPI clock input | |
| MISO | 7-pin header | SPI | SPI master-in slave-out | |
| MOSI | 7-pin header | SPI | SPI master-out slave-in | |
| SS | 7-pin header | SPI | SPI active-low chip select |
Ground supply
DS3234 VCC power supply input
Configurable square-wave or alarm interrupt output
SPI clock input
SPI master-in slave-out
SPI master-out slave-in
SPI active-low chip select
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