EM1537 Datasheet Low Power 32 kHz Circuit

Manufacturer: EM Microelectronic (Swatch Group)

Overview: DATASHEET Ɩ EM1537 Low Power 32 kHz Circuit for Analog Quartz.

Datasheet Details

Part number	EM1537
Manufacturer	EM Microelectronic (Swatch Group)
File Size	324.18 KB
Description	Low Power 32 kHz Circuit
Download	EM1537 Download (PDF)

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.

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 motor pulse chopping is programmable in a wide range by metal mask and don’t require additional bonds.
Fully debounced RESET input for accurate time setting and power saving during shelf life.
Integrated capacitors, mask selectable is steps of 1 pF up to 35 pF.
Operation temperature range: -10°.

Part Number	Description
EM1344	CMOS Circuit for Analog Quartz Clocks