ICM7556ISD

Programmable Timers And Oscillators Overview

The ICM7556ISD is a dual general-purpose RC timer manufactured by Analog Devices Inc./Maxim Integrated. It integrates two independent timers in a 14-pin SOIC package, operating within a supply voltage range of 2V to 18V and an industrial temperature range of -20°C to +85°C. The device features extremely low supply current, typically 120µA at 2V and 240µA at 18V, making it suitable for battery-powered applications. It supports astable and monostable modes with a guaranteed maximum oscillation frequency of 500kHz.

Programmable Timers And Oscillators Feature Summary

• Dual CMOS timers in a single 14-SOIC package
• Wide supply voltage range: 2V to 18V
• Low power consumption: 120µA typical at 2V
• TTL compatible output drive capability

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Time delay generation
• Pulse-width modulation (PWM)
• Sequential timing systems

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'ISD' corresponds to the 14-SOIC package and -20°C to +85°C temperature range. Confirm RoHS compliance status if required by the design specification. Check for direct replacement availability from Analog Devices or Maxim Integrated sources.

Programmable Timers And Oscillators Selection Notes

Select this component when dual independent timers are required in a compact surface-mount form factor. Ensure the application operates within the 2V to 18V supply range. Consider the 500kHz frequency limit for high-speed timing requirements. Verify thermal dissipation limits if operating near maximum junction temperatures.

Programmable Timers And Oscillators Part Context

This part belongs to the ICM7555/ICM7556 family of CMOS general-purpose timers. The ICM7556 variant specifically provides two timers, whereas the ICM7555 provides a single timer. Both share similar electrical characteristics but differ in pin count and internal configuration.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements include other variants within the ICM7556 family such as ICM7556IPD (PDIP) or ICM7556MJD (CERDIP). Cross-brand alternatives like TLC556IDR may be considered for pin-compatible substitution.