Maxim Integrated's DS1339C-33#TR Real-Time Clock

The DS1339C-33#TR is a high-performance, low-power serial real-time clock (RTC) with a built-in 32.768 kHz crystal oscillator from Maxim Integrated. This RTC component is designed to provide precise time and date information ranging from years down to seconds, making it an ideal choice for a wide array of applications that require accurate timekeeping, such as embedded systems, industrial controllers, consumer electronics, and portable devices.

One of the key features of the DS1339C-33#TR is its I²C serial interface, which facilitates easy integration into most microcontroller-based systems. This interface also allows for simple communication with other devices on the same bus, making it a versatile choice for complex electronic designs.

The device operates over a wide voltage range of 2.3V to 5.5V, which makes it suitable for battery-powered applications. Its low power consumption ensures minimal impact on battery life, a critical feature for portable and wearable technology. Additionally, the RTC maintains accurate timekeeping while drawing less than 500nA of current in battery-backup mode with the oscillator running, thereby ensuring long-term reliability.

The DS1339C-33#TR comes in a compact 8-pin SO package and features an automatic power-fail detect and switch circuitry. When the primary power supply drops below a programmable threshold, the device automatically switches to a backup battery, preserving time and date information without interruption. Furthermore, it includes a programmable square-wave output that can be used for various purposes, such as waking up a microcontroller or driving other circuits in a timed sequence.

Other notable functionalities of this RTC include two time-of-day alarms, a programmable calendar, and a temperature-compensated oscillator that ensures high accuracy over the device's temperature range. The DS1339C-33#TR also comes with a surface-mount tape and reel packaging option, denoted by the "TR" suffix, which is ideal for automated manufacturing processes.

With its robust feature set and dependable performance, the DS1339C-33#TR from Maxim Integrated stands out as a superior choice for designers looking to incorporate reliable timekeeping into their next project.