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EM1537 

DescriptionThe 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 awide voltage range of 1.2 to 3.6 Volt.The EM1537 IC is av...

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SeekIC No. : 004335864 Detail

EM1537 : DescriptionThe 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 ...

EM1537  Data Sheet

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Part Number:
EM1537 
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 EM1537 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 steps of 1/8 with chopping frequencies of 1024 Hz or 2048 Hz selectable by metal mask.
Motor period in Motor test mode is selectable 2 x 31.25 ms or 2 x 62.5 ms by metal mask.

Input and output capacitors EM1537 are integrated on chip and also programmable by metal mask.

With a fully debounced RESET pad, the motor EM1537 can be stopped.

A multi-functional bi-directional pad MTEST acts as output for a 32 Hz or 512 Hz for frequency tuning - if open, or if connected to Vp accelerates the motor period by a factor of 16 or 32.




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