Product Descriptions

The ICM7240/50/60 are programmable timer/counters and the Maxim ICM7242 is a fixed timer/counter. They require only 120uA of supply current,while generating delays from microseconds to days.Each device combines a counter with an internaloscillator whose period is controlled by an externalresistor and capacitor. The oscillator can be inhibitedand an external clock applied to the TB 1/O terminal.The programmable counters in the ICM7240/50/60 canbe programmed using thumbwheel switches, jumpers,and analog switches.

The ICM7240 has an 8 bit programmable counter andcan generate time delays from 1 to 255 RC timeconstants. The ICM7250 has a two digit programmableBCD counter and can generate time delays from 1 to 99RC time constants. The ICM7260 is used for "real time"applications and has a modulo 60 programmabledivider, producing time delays from 1 to 59 RC timeconstants. The ICM7242 has an 8 bit fixed counter andcan generate a time delay of 1 and 128 RC timeconstants. These four devices are easily cascaded andcan operate in either astable or monostable configura-tions, using the on-chip control flip-flop with Triggerand Reset inputs.

Product Features

Low Supply Current: 120uA

Timing from us to Days

Shutdown Current less than 10uA

Programmable Fixed Count

Cascadable for Long Range Timing

Monostable or Astable Operation

Low Power CMOS

Product Applications

The ICM7240/42/50/60 family is suitable for a widevariety of timing and control applications.

ON/OFF Delay Timers

Batch Timer/Sequencers

Cycle Timers

Programmable Timers

Frequency Synthesizers

Ultra-Long Time Delay Generators

Product Specifications

Product photos

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