Description

LS8106 is a monolithic CMOS integrated circuit designed for driving electro-mechanical hour meters. It produces output pulses at regular intervals to advance the hour meter display. The first output pulse occurs between 3 to 4 seconds after application of the supply voltage. Thereafter the pulses occur at time intervals of 3.6 seconds for 10,000 hours display range or 36 seconds for 100,000 hours display range. One of these two ranges can be selected with RNGS input.

The chip can be powered by either a DC voltage source or an AC voltage source with the addition of a single rectifying diode in series with the AC source. With an appropriate current limiting resistor in series with the power supply, a very wide range of DC and AC voltage sources can be used to power the chip. An over-voltage protection input is provided to shut down the pulse output in the event of power supply overvoltage conditions.

Features:

• Crystal based timer produces ultra-accurate timing pulses
• Selectable timing pulses at 0.01 hour or 0.001 hour intervals
• Geared to drive electro-mechanical hour meters
• Supply voltage 5V to 6.5V
• Internal Zener clamp allows any supply voltage using current limiting series resistor
• Sense input for over voltage shutdown
• Available in 8L DIP: part no. LS8106
• Available in 8L SOIC: part no. LS8106-S