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DS1811R-10
DS1811 5V EconoReset with Open Drain Output www.dalsemi.com FEATURES PIN ASSIGNMENT Automatically restarts a microprocessor after power failure Maintains reset for 150 ms after VCC returns to an in-tolerance condition Reduces need for discrete components Precision temperature-compensated voltage reference and voltage sensor Low-cost TO-92 or space saving SOT-23 packages available Efficient open-drain output with internal 5.5 kΩ pull-up resistor Operating temperature -40°C to +85°C 3 1 2 SOT-23 PACKAGE 1 2 3 1 2 3 TO-92 PACKAGE See Mech. Drawings Section PIN DESCRIPTION TO-92 1 2 3 RST VCC GND Active Low Reset Output Power Supply Ground SOT-23 1 2 3 RST VCC GND Active Low Reset Output Power Supply Ground DESCRIPTION The DS1811 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 150 ms to allow the power supply and processor to stabilize. 1 of 5 111999
DALLAS
米Maxim Integrated Products社が米Dallas Semiconductor社を約25億米ドルで買収すると発表した。買収作業は2001年第2四半期に完了する予定。Maxim社はリニアICとアナログ—ディジタル混載IC，Dallas Semiconductor社は通信，ネットワーク向けICなどにそれぞれ強みをもつ。合併によって製品の品ぞろえを増やし，販売の相乗効果をねらう。
Maxim Integrated
U.S.A
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