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SM8577B

Part Number	SM8577B
Manufacturer	Nippon Precision Circuits Inc
Description	Real-time Clock IC
Published	Apr 7, 2005
Detailed Description	SM8577B NIPPON PRECISION CIRCUITS INC. Real-time Clock IC OVERVIEW The SM8577B is a CMOS serial-interface type realtim...
Datasheet	SM8577B PDF File

Overview

SM8577B NIPPON PRECISION CIRCUITS INC.
Real-time Clock IC OVERVIEW The SM8577B is a CMOS serial-interface type realtime clock IC that operates at 32.
768 kHz.
It employs a 3-line serial interface to transfer time and date data.
It incorporates a supply-voltage detect function to determine data validity/invalidity.
It features an output interrupt with 32 kHz or 1 Hz output frequency.
It is available in 8-pin SOPs.
PINOUT CE DATA CLK FOUT 1 8 VDD XTN XT VSS 8577B FEATURES s s s s s 4 5 s s s s s 2.
5 to 5.
5 V operating voltage range 1.
0 µA at 3.
0 V (typ) current consumption 3-line serial interface 1.
7 ± 0.
3 V supply voltage detection threshold Timer counters for second, minute, hour...

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