Date: 23/06/2010
Ion and smoke detectors ICs with alarm memory from Microchip
Microchip has introduced low-power RE46C162/3 Ion and RE46C165/6/7/8 (RE46C16X) photo smoke-detector ICs to offer alarm memory. These ICs can determine which detector in an interconnected loop triggered an alarm. It can be used in smoke detectors and has a battery life of 10 years according to microchip. It consists of an interconnect filter that enables connection to other devices, such as CO detectors.
The RE46C16X ICs employs the alarm-memory feature to detect the faulty detector. It also has a charge-dump feature that allows the alarm on all interconnected devices to stop sooner.
"The addition of an alarm-memory product further illustrates Microchip's commitment to the smoke-detector market," said Bryan J. Liddiard, vice president of marketing with Microchip's Analog and Interface Products Division.
Art Eck, senior product marketing manager with Microchip's Analog and Interface Products Division, continued, "Microchip already offers a broad line of PICŪ microcontrollers (MCUs), horn drivers, other smoke-detector ICs, signal-chain and power-management products, providing complete smoke-detector solutions for residential devices to programmable commercial devices."
Device-Specific Features
The following table summarizes RE46C16X IC device-specific features.
Part #
Horn Pattern
Length of Hush
RE46C162
Temporal
10 min.
RE46C163
Temporal
1 min.
RE46C165
Temporal
10 min.
RE46C166
Continuous
10 min.
RE46C167
Temporal
1 min.
RE46C168
Continuous
1 min.
Packaging, Pricing & Availability
The following table outlines RE46C16X IC package options and 10k-unit quantity pricing.
Part #
Package Options
10k-Unit Quantity Pricing
RE46C162
16-pin PDIP
$0.88 each
RE46C163
16-pin PDIP
$0.88 each
RE46C165
16-pin PDIP, SOIC 150/300
$0.71 each for the SOIC 150, $0.88 each for the SOIC 300 and PDIP
RE46C166
16-pin PDIP, SOIC 150/300
$0.71 each for the SOIC 150, $0.88 each for the SOIC 300 and PDIP
RE46C167
16-pin PDIP, SOIC 150/300
$0.71 each for the SOIC 150, $0.88 each for the SOIC 300 and PDIP
RE46C168
16-pin PDIP, SOIC 150/300
$0.71 each for the SOIC 150, $0.88 each for the SOIC 300 and PDIP
For more information visit: http://www.microchip.com/get/V0TT