UIC809

UNISONIC TECHNOLOGIES CO., LTD UIC809 MICROPROCESSOR RESET CIRCUITS CMOS IC  DESCRIPTION The UTC UIC809 series are resetting circuits which can monitor power supplies especially in microprocessor based systems. In normal operation, the UTC UIC809 series can assert a reset under any of the following situation: the power supply drops below a designated reset threshold level (which is available for 3V or 3.3V or 5V system) is forced low. There is an internal active low RESET output which has already been guaranteed to remain asserted for at 140ms least while VCC rises above the designed threshold level.  FEATURES * Voltage monitor for 3V or 3.3V or 5V power supplies * Valid RESET remains with VCC as low as 1V * Typical supply current: 5µA * Fixed 140ms minimum reset pulse width * With Manual reset input  ORDERING INFORMATION Ordering Number Package Pin Assignment 12 UIC809G-x-AE2-3-R SOT-23-3 RESET GND Note: Pin Assignment : x: Output Voltage, refer to Marking Information. 3 VCC Packing Tape Reel www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd 1 of 8 QW-R119-024.A UIC809  MARKING INFORMATION PACKAGE VOLTAGE CODE SOT-23-3 B : 2.93V  PIN CONFIGURATION MARKING CMOS IC  PIN DESCRIPTION No. PIN NAME DESCRIPTION 1 RESET This pin will fall low after the VCC’s falling below the reset threshold voltage and it also can remain asserted for at least 140ms min after VCC’s rising upon the reset threshold. 2 GND Ground 3 VCC Input o...