ST8564
Low power consumption: 0.4μA typical (VDD=3.0V,Ta=25°C).
Operating voltage:1.5V~5.5V; Clock voltage: 1.0V~5.5V.
Operating temperature:-40°C~+85°C.
Built-in crystal,High accuracy:±5ppm at 25℃.
ROHS Recognized
Standard IIC bus interface, maximum speed 400KHz (4.5V~5.5V).
Chip pin ESD>4KV
CMOS Process
Package Form:3215(3.2mmX1.5mmx0.75mm).
Model :
ST8564REAL TIME CLOCK IC(Built-in Crystal Oscillator) ST8564
A separate frequency pulse output pin
Built-in IIC bus 0.5 seconds automatic reset function
Built-in 4-byte alarm registers for day,week,hour and minute.
Built-in a single timer/alarm interrupt output
Auto-reload 8-bit countdown calculator
Built-in clock data write-protection function
Built-in power-on reset circuit
Built-in power supply regulator


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