EM1537 cmos equivalent, low-power cmos.
Low power 32 kHz Quartz oscillator Operating voltage ranges 1.55V and 3 Volt. Very low current consumption typ. 100 nA at 1.5V. Motor pulse width motor period and.
Analog watches Driver for bipolar stepping motors
Functional Diagram
Vn
RESET
Vn
RESET
VP
VP
MOT1
CTR
H1537.
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 .
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