Maxim Integrated Real Time Clock 56 bit DM:M:DW:Y, 8-Pin SOP Surface DS1308U-33+

Maxim Integrated DS1308U-33+ Real Time Clock is a high-precision 56-bit timekeeping IC in an 8-pin SOP surface mount package suitable for a wide variety of industrial and commercial applications. It operates over a wide industrial temperature range from -40°C to +85°C, ensuring reliable performance in demanding environments. The device features a low timekeeping current of approximately 250 nA, effectively extending battery backup runtime for applications where long-term time retention is critical.

This real-time clock fully manages all timing functions including seconds, minutes, hours, date, month, day of the week, and year with leap-year compensation valid up to the year 2400. It provides a 56-byte, battery-backed general-purpose RAM with unlimited writes, making it versatile for user data storage alongside timekeeping.

The DS1308U-33+ supports a simple I2C serial interface compatible with most microcontrollers, allowing seamless integration in embedded systems. It also features an automatic power-fail detect and switch circuitry that helps maintain accurate timekeeping during power interruptions.

Designed to be compatible with crystals having ESR up to 100kΩ, this clock IC allows optimization for cost and space constraints. A programmable square-wave output enables flexible timing signal generation. Its compact dimensions (3.1 mm length, 0.65 mm width, and 0.95 mm height) and SOP package facilitate easy PCB mounting.

Applications for this IC include consumer electronics such as set-top boxes and digital recorders, telecommunications equipment including routers and servers, medical devices like glucometers and medicine dispensers, office equipment including fax machines and copiers, as well as handheld devices such as GPS units and POS terminals.

The combination of robust industrial temperature tolerance, low power consumption, and full timekeeping management makes the DS1308U-33+ an ideal solution for real-time clock requirements in diverse sectors including industrial automation, telecommunications, healthcare, and consumer electronics.

Explore EnvMart’s extensive offerings in electronic components and semiconductor devices to find complementary products compatible with the DS1308U-33+ Real Time Clock IC. Operates over industrial temperature range from -40°C to +85°C.

Features low power consumption extending battery backup runtime. Includes 56-byte battery-backed RAM with unlimited write cycles. Supports I2C interface and real-time clock functions including leap-year compensation. Compatible with crystals up to 100kΩ ESR for optimized cost and space.

Programmable square-wave output for flexible signal generation. Automatic power-fail detect and switch circuitry enhances reliability. Compact package dimensions: 3.1 mm length, 0.95 mm height, 0.65 mm width. Suitable for consumer electronics, telecommunications, medical, and office equipment use.