The PCA21125 is a CMOS Real-Time Clock (RTC) and calendar optimized for low-power consumption and an operating temperature up to 125 °C. Data is transferred via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer functions are also available with the possibility to generate a wake-up signal on the interrupt pin.
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Part | Order | CAD Model | Status | RTC Type | Accuracy (Typ) (+/- ppm) | Supply Voltage [Min to Max] (V) | Low Supply Current (μA) | Communication protocol | Capacitive Load (μF) | Battery Back Up | Watchdog timer | Programmable alarm | Countdown Timer | Tamper Input | Interrupt Output | Integrated Temperature Compensation | AEC-Q100 compliant | Package Type | Package Dimensions (LxWxZ (mm)) | Operating Temperature (Min-Max) (℃) | Budgetary Price excluding tax |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Active | IC | 20 to 50 at 25°C | 1.6 to 5.5 | 0.8 | SPI | 7 | No | Y | Y | Y | 0 | 1 | N | Y | TSSOP14 | 5 x 4.4 x 1.1 | -40 to 125 | 1K @ US$0.82 |
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