ICM7555CD/01,112

Programmable Timers And Oscillators Overview

The ICM7555CD/01,112 is a CMOS general-purpose timer manufactured by NXP Semiconductors. It serves as a direct replacement for standard NE/SE555 timers with improved performance characteristics. The device operates within a supply voltage range of 3 V to 16 V and features a typical supply current of 80 μA. It guarantees high-speed operation up to 500 kHz and offers extremely low trigger, threshold, and reset currents of 20 pA. The component supports both astable and monostable modes, providing rail-to-rail outputs capable of driving TTL or CMOS loads without requiring decoupling capacitors on the control voltage terminal.

Programmable Timers And Oscillators Feature Summary

• Low supply current: 80 μA (typical)
• High-speed operation: 500 kHz guaranteed
• Wide operating supply voltage range: 3 V to 16 V
• Extremely low input currents: 20 pA (typical)

Programmable Timers And Oscillators Applications

• Precision timing
• Pulse generation
• Sequential timing
• Time delay generation
• Pulse width modulation

Programmable Timers And Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature rating. Ensure that unused inputs are connected to appropriate voltage levels as specified in the functional selection table to prevent undefined states. Confirm compliance with relevant environmental standards such as RoHS before finalizing procurement decisions.

Programmable Timers And Oscillators Selection Notes

Select this component when a CMOS-based timer is required to replace bipolar 555 devices for lower power consumption. The SO8 plastic small outline package is suitable for surface mount applications. Consider the 0 °C to +70 °C ambient temperature range for commercial applications. Use higher-impedance timing elements to minimize total system supply current while maintaining accurate time constants.

Programmable Timers And Oscillators Part Context

The ICM7555 series includes variants such as the ICM7555ID for extended industrial temperature ranges (-40 °C to +85 °C) and DIP8 packages like the ICM7555CN. The CD variant specifically denotes the commercial temperature range and SO8 surface-mount package. This family provides exact equivalence to NE/SE555 devices in most applications while offering superior electrical parameters and stability.

Programmable Timers And Oscillators Replacement Considerations

The ICM7555CD/01,112 is designed as a direct replacement for NE/SE555 and SE555 timers. Designers should verify that external components are compatible with the CMOS input/output levels and ensure that power supply sequencing prevents latch-up conditions during startup.