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STM1001

Reset circuit

STMicroelectronics 

STM1001

1

Description

Description

The STM1001 microprocessor reset circuit is a low-power supervisory device used to

monitor power supplies. It performs a single function: asserting a reset signal whenever the

VCC supply voltage drops below a preset value and keeping it asserted until VCC has risen

above the preset threshold for a minimum period of time (trec).

Figure 1. Logic diagram

VCC

STM1001

RST

VSS

Table 1.

VSS

RST

VCC

Signal names

Ground

Active-low reset output (open drain)

Supply voltage

Figure 2. Connections

RST 1

VCC 2

3 VSS

SOT23-3

AI09116

AI09117

Doc ID 10373 Rev 6

5/18

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