TCM811

M Features TCM811/TCM812 General Description The TCM811 and TCM812 are cost effective system supervisory circuits designed to monitor VDD in digital systems and provide a reset signal to the host controller when necessary. A manual reset input is provided to override the reset monitor and is suitable for use as a push-button reset. No external components are required. The reset output is driven active within 20 µsec (5 µsec for F version) of VDD falling through the reset voltage threshold. RESET is maintained active for a minimum of 140 msec after VDD rises above the reset threshold. The TCM812 has an active high RESET output while the TCM811 has an active low RESET output. The output of the TCM811 is valid down to VDD = 1V. Both devices are available in a 4-Pin SOT-143 package, specified with a temperature range of -40°C to +85°C. The TCM811/TCM812 are optimized to reject fast transient glitches on the VDD line. A low supply current of 6 µA (VDD = 3.3V) makes these devices ideal for battery powered applications. 4-Pin Microcontroller Reset Monitors Precision VDD Monitor for 2.0V, 2.8V, 3.0V, 3.3V, 5.0V Nominal Supplies Manual Reset Input 140 msec Minimum RESET Output Duration RESET Output Valid to V DD = 1.0V (TCM811) Low 6 µA (typ.) Supply Current VDD Transient Immunity Small 4-Pin SOT-143 Package No External Components Replacement for MAX811/812 and Offers a Lower Threshold Voltage Option Push-Pull RESET Output Temperature Range: - Commercial (C) -4...