AN3029 datasheet(15/42 Pages) STMICROELECTRONICS

부품명	AN3029

상세설명	Getting started with STM8L and STM8AL

PDF	42 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

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15 / 42 page

DocID16139 Rev 5

15/42

AN3029

Reset control

5.1.1

Output characteristics

•

A valid pulse on the pin is guaranteed with a

≥ 20 ns pulse duration on the internal

output buffer.

•

After a valid pulse is recognized, a pulse on the pin of at least 20 µs is guaranteed

starting from the falling edge of A.

Figure 8. Output characteristics

5.1.2

Input characteristics

•

All pulses with a duration less than 50 ns are filtered

•

All train/burst spikes with a ratio of 1/10 must be filtered. This means that a negative

spike of up to 50 ns is always filtered, when a 5 ns interval between spikes occurs (ratio

1/10).

•

All pulses with duration more than 300 ns are recognized as valid pulses

Figure 9. Input characteristics

MS32525V1

≥ 20 n

20 μs pulse stretch min

Pad

Reset requested

MS32526V1

Pad

System reset

>5 ns

<50 ns

300 ns

Valid Reset requested

Negative train of glitch filtered

AN3029 데이터시트(PDF) 15 Page - STMicroelectronics