SM8580AM
OVERVIEW
The SM8580AM is a real-time clock IC based on a 32.768 k Hz crystal oscillator, which features a 4-bit parallel interface for munication with an external microcontroller. It prises second-counter to year-counter clock and calendar circuits that feature automatic leap-year adjustment up to year 2099, alarm and timer interrupt functions, clock counter change detect functions, ±30-second correction function, time error correction function, and built-in temperature sensor. The 4-bit parallel interface is patible with general-purpose SRAM over a high-speed bus.
FEATURES s s
PINOUT
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High-speed bus 4-bit parallel interface Date, day, hour, minute, and second-counter presettable alarm interrupt 1/4096 seconds to 255 minutes presettable interval timer interrupt function 2 software-maskable alarm and timer interrupt outputs Clock counter change detect functions 4-digit western calendar display Automatic leap year correction up to year 2099...
