AME8570 Datasheet PDF

AME AME8570

The AME8570 family allows the user to customize the CPU reset function without any external components. The user has serveral choice of reset voltage thresholds, reset time intervals, and output driver configurations, all of which are preset at the factory. These circuits monitor the power supply voltage of µP based systems.

Part No.	AME8570
Datasheet	AME8570 Download
Manufacturer	AME
Description	mProcessor Supervisory
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GENERAL DESCRIPTION

When the power supply voltage drops below the voltage threshold a reset is asserted immediately ( within an interval TD1 ). The reset remains asserted after the supply voltage rises above the voltage threshold for a time interval, TD2. The reset output may be either active high ( RESET ) or active low ( RESETB ). The reset output may be configured as either push/pull or open drain. The state of the reset output is guaranteed to be correct only when supply voltage is greater than 1V. The AME8570 also provide a reset manually by pulling the MRB input to ground. Space saving SC-70 package and micropower quiescent current ( < 5.0µA ) make this family a natural for portable battery powered equipment. GND µProcessor Supervisory n Functional Block Diagram AME8570 Push-Pull RESET/ RESETB IN R1 I1 Delay R2 GND VREF N1 P1 RESET/ RESETB AME8570 Open-Drain RESET/RESETB IN R1 I1 Delay RESET/ RESETB N1 R2 VREF n

FEATURES

l Small Packages : SC-70, SOT-23 l Tight Voltage Threshold...