EM1344 Datasheet CMOS Circuit for Analog Quartz Clocks

Manufacturer: EM Microelectronic (Swatch Group)

Overview: DATASHEET Ɩ EM1344 CMOS Circuit for Analog Quartz Clocks with Bipolar Stepping Motor.

EM1344 cmos circuit for analog quartz clocks by EM Microelectronic (Swatch Group) - Datasheet Preview

Datasheet Details

Part number	EM1344
Manufacturer	EM Microelectronic (Swatch Group)
File Size	602.07 KB
Description	CMOS Circuit for Analog Quartz Clocks
Download	EM1344 Download (PDF)

General Description

The H1344 is a low power 32kHz analog clock integrated circuit designed in CMOS technology to drive a bipolar stepping motor.

A set of capacitors is provided on chip to be connected, in any combination, to the two oscillator terminals, with a maximum total capacitance of 48pF.

Both the motor pulse period and the motor pulse width are maskprogrammable (see page 6 for available options).

Key Features

 32kHz quartz oscillator  Integrated capacitors, mask selectable  Single battery operation  0.7 A typical current consumption  Low resistance outputs for bipolar stepping motor  Mask options for pad designation, motor period and pulse width, alarm frequency, modulation and duty cycle  Alarm output function compatible with either NPN or PNP-driver transistors  Alarm input function  1024Hz output on ALIN pad for oscillator frequency verification  Fast test function  ESD protected termi.

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