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AZ810NSTR-G1 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AZ810NSTR-G1 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
1 / 9 page Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 1 Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited General Description The AZ809/810 microprocessor supervisory circuits can be used to monitor the power supplies in micropro- cessor and digital systems. They provide a reset to the microprocessor in power-up, power-down and brown- out conditions. The function of the AZ809/810 is to monitor the VCC supply voltage, and assert a reset sig- nal whenever this voltage declines below the factory- programmed reset threshold. The reset signal remains asserted for 240ms after VCC rises above the threshold. The AZ809 has an active-low RESET output, while the AZ810 has an active-high RESET output. Seven standard reset voltage options are available, suitable for monitoring 3.0V, 3.3V and 5.0V supply voltages. With a typical supply current of only 8μA when VCC is 3.3V, the AZ809/810 are ideal for use in portable equipment. These ICs are available in SOT-23 package. Features · Precise Monitoring of 3.0V, 3.3V and 5.0V Sup- ply Voltages · Improved Maxim MAX809/MAX810 Replace- ment · 140ms Min. Reset Pulse Width Active-low Reset Output (AZ809) Active-high Reset Output (AZ810) · No External Components · Specified Over Full Temperature Range: -40 to 105oC Applications · Embedded Controllers · Battery Operated Systems · Intelligent Instruments · Wireless Communication Systems · PDAs and Handheld Equipment SOT-23 Figure 1. Package Type of AZ809/810 |
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