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Micro-processor (µP) Supervisory Circuits
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The PT7M823/824/825 family micro-processor (μP) supervisory circuits are targeted to improve reliability and accuracy of powersupply circuitry in μP’s systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions.
The main functions are:
1. Asserting reset output during power-up, power-down and
brownout conditions for μP system.
2. Watchdog functions
3. Manual reset
|Fixed Detect Voltages (V)||2.19, 2.32, 2.63, 2.93, 3.08, 4.38, 4.63 V|
|Adjustable Detect Voltage Reference Voltage (V)||N/A V|
|Number of Channels||1|
|Minimum Operating Voltage (V)||1 V|
|Maximum Input Voltage (V)||5.5 V|
|Quiescent Current (µA)||10 µA|
|Typical Time Delay (µs)||N/A µs|
|Reset Period (ms)||200 ms|
|RESET Output (Active High)||Yes (Active High)|
|RESET Output (Active Low)||Yes (Active Low)|
|Watchdog Time (s)||N/A s|
|Power Fail Comparator Threshold (V)||N/A V|
|Reset Output Topology||Push-Pull|
|Ambient Temperature Range (°C)||-40 to 85 °C|
Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
|PCN #||Issue Date||Implementation Date||Subject|
|PCN-2512||2021-04-16||2021-07-16||Qualified Additional Assembly & Test (A/T) Site|