ICM7250IPE+

MAXIM INTEGRATED PRODUCTS  ICM7250IPE+  芯片, 定时器

The is a programmable timer/ counter in 16 pin DIP package. It requires only 120µA of supply current while generating delays from microseconds to days. Each device combines a counter with an internal oscillator whose period is controlled by an external resistor and capacitor. The oscillator can be inhibited and an external clock applied to the TB I/O terminal. The programmable counters in the ICM7250 can be programmed using a thumbwheel switches, jumpers and analogue switches. The ICM7250 has a two digit programmable BCD counter and can generate time delays from 1 to 99 RC time constants. It can be easily cascaded and can operate in monostable and astable configurations using the on-chip control flip flop with trigger and reset inputs. The ICM7250 is suitable for wide variety of timing and control applications such as ON/OFF delay timers, batch timer/sequencers, cycle timers, programmable timers, frequency synthesizers and ultra long time delay generators.

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Supply voltage range is 2V to 16V

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Operating temperature range from -20°C to 85°C

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Shutdown current is less than 10µA

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Low power CMOS

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Timing accuracy is 5%

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Synchronous high speed operations and no false clocking

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Improved ESD protection