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EM1537

EM Microelectronic
Part Number EM1537
Manufacturer EM Microelectronic
Description Low-Power CMOS
Published Dec 22, 2020
Detailed Description R EM MICROELECTRONIC - MARIN SA EM1537 Low Power 32 kHz Circuit for Analog Quartz Watches Description The EM1537 is a...
Datasheet PDF File EM1537 PDF File

EM1537
EM1537

Overview
R EM MICROELECTRONIC - MARIN SA EM1537 Low Power 32 kHz Circuit for Analog Quartz Watches Description The EM1537 is an integrated circuit in a low power CMOS technology for battery operated wristwatches with bipolar stepping motors.
Time base is a 32 kHz crystal oscillator.
It has a very low current consumption of typ.
100 nA in a wide voltage range of 1.
2 to 3.
6 Volt.
The IC is available in two voltage ranges - 1.
2 to 1.
8 Volt and 1.
8 to 3.
6 V.
Motor pulse width is programmable from 0.
098 ms to 14.
65 ms in steps of 0.
98 ms by metal mask.
Motor period is programmable from 2 x 1s to 2 x 60 s in steps of 1 s selectable by metal mask.
Motor pulse chopping is programmable from 1/8 to 8/8 in s...


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