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AME8503 - UProcessor Supervisory

Datasheet Summary

Description

The AME8503 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.

Features

  • n Functional Block Diagram l Internally Fixed Threshold 1.2V to 4.5V in 0.1V Step l High Accuracy ±1.5% l Low Supply Current 3µA l No External Components Required l Quick Reset within 20µs l Built-in Recovery Delay Include 0ms, 55ms, 220ms, 450ms l Low Functional Supply Voltage 0.9V l N-Channel Open-Drain Output l Small SOT-143, SC-70-4, SOT-25 and TSOT- 25A Package l RoHS Compliant and Halogen Free VIN GND MRB R1 I1 I2 R2 VREF Delay N1 RESET/ RESETB Rev. A.01 1 AME AME8503 n Pin.

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Datasheet Details

Part number AME8503
Manufacturer Analog Microelectronics
File Size 485.21 KB
Description UProcessor Supervisory
Datasheet download datasheet AME8503 Datasheet
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Full PDF Text Transcription

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AME AME8503 n General Description The AME8503 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. 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 open drain.
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