Product Summary

The ICM7555ISA-T is a CMOS RC timer providing significantly improved performance over the standard NE/SE555 timer, while at the same time being a direct replacement for those devices in most applications. The ICM7555ISA-T is a stable controller capable of producing accurate time delays or frequencies. In the one-shot mode, the pulse width of each circuit is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free-running frequency and the duty cycle are both accurately controlled by two external resistors and one capacitor. The applications of the ICM7555ISA-T are Precision timing, Pulse generation, Sequential timing, Time delay generation, Pulse width modulation, Pulse position modulation, Missing pulse detector.

Parametrics

ICM7555ISA-T absolute maximum ratings: (1)Supply Voltage: +18V; (2)Input Voltage Trigger, Control Voltage, Threshold, Reset: V+ +0.3V to GND -0.3V; (3)Output Current: 100mA.

Features

ICM7555ISA-T features: (1)Exact equivalent in most cases for TLC555; (2)Low supply current: 60 μA; (3)Extremely low input currents: 20 pA; (4)High-speed operation: 1MHz; (5)Guaranteed Supply Voltage Range: 2V to 18V; (6)Temperature Stability: 0.005%/℃ at +25℃; (7)Normal Reset Function - No Crowbarring of Supply During Output Transition; (8)Can be Used with Higher Impedance Timing Elements than Regular 555/6 for Longer RC Time Constants; (9)Timing from Microseconds through Hours; (10)Operates in Both Astable and Monostable Modes; (11)Adjustable Duty Cycle; (12)High Output Source/Sink Driver can Drive TTL/CMOS.

Diagrams

ICM7555ISA-T pin connection

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Maxim Integrated Products

Timers & Support Products Low-Power General Purpose Timer

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