RE46C180E16F

Sensor And Detector Interfaces Overview

The RE46C180E16F is a CMOS ionization smoke detector ASIC manufactured by Microchip Technology. It operates on a supply voltage range of 6V to 12V, with typical standby current consumption of 3.8µA at 9V. The device features an internal oscillator with ±5% tolerance and supports interconnection of up to 40 detectors. Key electrical parameters include a low battery set point of 6.75V to 7.95V (programmable), detect input current leakage of ±0.75pA, and guard amplifier offset voltage of ±50mV. It provides temporal or continuous horn patterns and includes alarm memory functionality.

Sensor And Detector Interfaces Feature Summary

• Supports interconnection of up to 40 detectors with smart IO filtering and charge dump capabilities
• Includes programmable hysteresis, reduced sensitivity modes, and alarm memory indication
• Features internal supervisory tests for chamber failure, low battery, and power-on reset
• Provides horn synchronization and Auto Alarm Locate functions for interconnected systems

Sensor And Detector Interfaces Applications

• Single and multiple station smoke alarms compliant with UL217
• Smoke detectors for fire alarm systems compliant with UL268
• Interconnected residential or commercial smoke detection networks

Sensor And Detector Interfaces Procurement Notes

Verify the specific package type required, as the RE46C180 is available in both PDIP and SOIC packages. Confirm that the E16F suffix corresponds to the correct packaging configuration for your assembly process. Ensure compatibility with the required operating temperature range of -10°C to +60°C for your application environment.

Sensor And Detector Interfaces Selection Notes

Select this component for applications requiring low quiescent current and comprehensive ionization detection features. Consider the programmable sensitivity settings and timer modes if adaptive detection is needed. Verify that the system design can accommodate the external components required for the ionization chamber and piezoelectric transducer interface.

Sensor And Detector Interfaces Part Context

The RE46C180 belongs to Microchip's family of CMOS ionization smoke detector ICs. It is designed as a next-generation solution offering minimal external component requirements while providing advanced features like alarm memory and interconnect capabilities. It serves as a core processing unit for standalone or networked smoke detection devices.

Sensor And Detector Interfaces Replacement Considerations

Check datasheets for other RE46C series variants such as RE46C152E16F or RE46C163E16F to determine if alternative feature sets better suit the design requirements. Ensure pinout compatibility and functional equivalence before substituting.