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| Image | Part Number | Manufacturer | Description | Series | Operating Temperature | Packaging | Mounting Type | RoHS Status | Manufacturer Part Number | Type | Voltage - Supply | Shell Style |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PT7C4302ZEEX | Diodes Incorporated | REAL TIME CLOCK W-DFN2030-8 | - | - | - | - | - | - | - | - | - | |
| PCF8523AUG/HAV | NXP Semiconductors / Freescale | IC RTC CLK/CALENDAR I2C 12WLCSP | - | - | - | - | - | - | - | - | - | |
| RX-4571NB:B | Epson | IC TRC CLK/CALENDAR | - | - | - | - | - | - | - | - | - | |
| PT7C4563BWEX | Diodes Incorporated | REAL TIME CLOCK SO-8 T&R 2.5K | - | - | - | - | - | - | - | - | - | |
| PT7C4311AWE | Diodes Incorporated | REAL-TIME CLOCK IC | - | - | - | - | - | - | - | - | - | |
| PT7C4337BZEEX | Diodes Incorporated | REAL TIME CLOCK W-DFN2030-8 T&R | - | - | - | - | - | - | - | - | - | |
| RX8900CE:UA0 | Epson | IC TRC CLK/CALENDAR | - | - | - | - | RoHS Compliant | - | - | - | - | |
| PT7C4502-2WF | Diodes Incorporated | IC RTC CLOCK SO-8 | - | - | - | - | - | - | - | - | - | |
| PT7C4311ZEE+DMX | Diodes Incorporated | REAL TIME CLOCK W-DFN2030-8 | - | - | - | - | - | - | - | - | - | |
| PT7C4563ZEE | Diodes Incorporated | IC RTC CLOCK | - | - | - | - | - | - | - | - | - |
Real-time clocks (RTCs) are electronic devices that keep track of the current time and date with high accuracy, independent of external power sources. They typically include a built-in crystal oscillator and a battery backup to ensure continuous timekeeping even when the main power is off. RTCs are commonly used in applications such as consumer electronics, industrial automation, medical devices, and automotive systems where precise timekeeping is essential for scheduling tasks, logging events, and time-stamping data.