ST8931
Low power consumption: 0.6μA typical (Ta=25C).
Operating voltage: 2.5V~5.5V; Timekeeping:1.5V~5.5V.
Operating temperature:-40C~+105C
Standard IIC bus interface, maximum speed 400KHz (4.5V~5.5V).
Chip pin ESD>4KV
CMOS Process
Package Form:SOP8(150mil) and SOP16(300mil)
Model :
ST8931REAL TIME CLOCKIC(Built-in Crystal Oscillator) ST8931
Built-in 70-byte general-purpose SRAM
high precision timing function in a wide temperature range:
0 °℃~+40 ℃ <± 2PPM,-40 ℃~+85℃<± 3.5PPM,+86℃
~+105C≤±10PPM.
Built-in IIC bus 0.5 seconds automatic reset function.
Built-in 1/1024 second register
Built-in8-byte ID code
Built-in communication verification function
Built-in clock data write-protection function


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