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AME8504

Analog Microelectronics
Part Number AME8504
Manufacturer Analog Microelectronics
Description UProcessor Supervisory
Published Jan 31, 2016
Detailed Description AME AME8504 µProcessor Supervisory n General Description The AME8504 family allows the user to customize the CPU reset...
Datasheet PDF File AME8504 PDF File

AME8504
AME8504


Overview
AME AME8504 µProcessor Supervisory n General Description The AME8504 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 either push-pull.
The state of the reset output is guaranteed to be correct only when supply voltage is greater than 1V.
The AME8504 also provide a reset manually by pulling the MRB input to ground.
Space saving SC-70 package and micropower quiescent current (<3.
0µA) make this family a natural for portable battery powered equipment.
n Application l Portable Electronics l Power Supplies l Computer Peripherals l Data Acquisition Systems l Applicatiions using CPUs l Consumer Electronics n Typical Application VIN PUSH BUTTON RESET / RESETB SWITCH MRB GND VIN µP RESET INPUT GND n Functional Block Diagram n Features 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 Push-Pull 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 P1 R2 V RE F Delay N1 RESET/ RESETB Rev.
A.
01 1 AME AME8504 n Pin Configuration SOT-25/TSOT-25A Top View 54 AME8504 12 3 AME8504-AEVxxxxxx 1.
RESET/RESETB 2.
IN 3.
GND 4.
MRB 5.
NC * Die Attach: Non-Conductive Epoxy SOT-143 Top View 43 ...


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