ICM7555CD,623

Programmable Timers And Oscillators Overview

The ICM7555CD,623 is a general-purpose CMOS timer manufactured by NXP Semiconductors. It serves as a direct replacement for standard NE/SE555 timers with significantly improved performance parameters. 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 exhibits extremely low trigger, threshold, and reset currents of 20 pA (typical). The component provides 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)
• Extremely low input currents: 20 pA (typical) for TRIGGER, THRESHOLD, and RESET
• High-speed operation: 500 kHz guaranteed frequency
• Wide operating supply voltage range: 3 V to 16 V
• Rail-to-rail outputs with high source/sink drive capability

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Pulse generation and width modulation
• Sequential timing and time delay generation
• Missing pulse detection

Programmable Timers And Oscillators Procurement Notes

Verify that the ordering suffix ',623' corresponds to the specific tape-and-reel packaging configuration defined in the manufacturer's official documentation. Confirm the package type matches the required PCB footprint, as this part number specifies the SO8 plastic small outline package variant.

Programmable Timers And Oscillators Selection Notes

Select the ICM7555CD,623 when an industrial temperature range of 0 °C to +70 °C is sufficient for the application environment. This variant is suitable for designs requiring lower power consumption than bipolar 555 timers while maintaining compatibility with existing NE/SE555 circuit layouts.

Programmable Timers And Oscillators Part Context

The ICM7555CD,623 belongs to the ICM7555 family of CMOS timers produced by NXP Semiconductors. It is functionally equivalent to other variants such as the ICM7555ID but differs in its specified ambient operating temperature range. The 'CD' designation indicates the commercial temperature grade and SO8 package style.

Programmable Timers And Oscillators Replacement Considerations

The ICM7555CD,623 is documented as an exact equivalent for most applications involving the NE/SE555 and SE555 devices. Designers should verify that the higher input impedance and different output drive characteristics are compatible with the existing load requirements.