STM809/810/811/812

Description

Doc ID 9873 Rev 5

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1

Description

The STM809/810/811/812 microprocessor reset circuits are low-power supervisory devices

used to monitor power supplies. They perform a single function: asserting a reset signal

STM811/812 also provide a push-button reset input (MR).

Figure 1.

Logic diagram (STM809/810)

1.

For STM810

Figure 2.

Logic diagram (STM811/812)

1.

For STM812

Table 2.

Signal names

Ground

RST

Active-low reset output

1.

STM810/812 only

Active-high reset output

Supply voltage

2.

STM811/812 only

Manual reset input

AI07832

STM809/810

RST (RST)

(1)

AI07831

STM811/812

RST (RST)

(1)

MR