LM2240 Datasheet (National Semiconductor) - Programmable Timer/Counter

LM2240, Programmable Timer/Counter

The LM2240 Programmable Timer Counter is a monolithic controller capable of both monostable and astable operation Monostable operation allows accurate microsecond to five day time delays Long delays up to three years can easily be generated by cascading two timers The timer consists of a time-base o

LM2240 Features

* Y Y Y Y Y Y Y Y Accurate timing from microseconds to days Programmable delays from 1 RC to 255 RC TTL and CMOS compatible outputs Timing directly proportional to RC time constant High accuracy External sync and modulation capability Wide supply voltage range Excellent supply voltage rejection Conn