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RE46C140
  • RE46C140
  • RE46C140
  • RE46C140
  • RE46C140

RE46C140

In Production

The RE46C140 is low power CMOS photoelectric type smoke detector IC. With minimal external components this circuit will provide all the required features for a photoelectric type smoke detector. It has low quiescent current, temporal horn pattern, and can connect up to 40 detectors using the built-in alarm IO.

Microchip Technology RE46C140 Product Info

16 April 2026 0

Parameters

Alternate Diagnostics Mode

No

Operating Temp Max °C (degrees Celsius)

75

Operating Temp Min °C (degrees Celsius)

-25

Operating Voltage Max V (volt)

12

Operating Voltage Min V (volt)

6

Reverse Battery Protection

No

Type

Photoelectric

Typical Iq µA (microampere)

4

Features

  • Internal Power On Reset
  • Low Quiescent Current Consumption
  • Available in 16L PDIP or 16L N SOIC
  • ESD Protection on all Pins
  • Interconnect up to 40 Detectors
  • 10 Minute Timer for Sensitivity Control
  • Temporal Horn Pattern
  • Internal Low Battery and Chamber Test
  • Compatible with Allegro A5366
  • Available in Standard Packaging or RoHS Compliant Pb Free Packaging.

Description

The RE46C140 is low power CMOS photoelectric type smoke detector IC. With minimal external components this circuit will provide all the required features for a photoelectric type smoke detector. It has low quiescent current, temporal horn pattern, and can connect up to 40 detectors using the built-in alarm IO.

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