STM6513 datasheet(9/29 Pages) STMICROELECTRONICS

部件名	STM6513

功能描述	Dual push-button Smart ResetTM with dual reset outputs and user-selectable setup delay

PDF	29 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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9 / 29 page

STM6513

Pin descriptions

Doc ID 16490 Rev 2

9/29

Table 2.

tREC1 programmed by an ideal external capacitor

CtREC value (µF)

tREC1 (ms)

(1)(2)

At 25 ° C. Example calculations based on an ideal capacitor. During application design and component

selection it should be considered that the current flowing into the external tREC programming capacitor

(CtREC) is on the order of 100 nA, therefore a low-leakage capacitor (ceramic or film capacitor) should be

used and placed as close as possible to the TRECADJ pin. Also an adequate low-leakage PCB

environment should be ensured to prevent tREC accuracy from being affected. A recommended minimum

value of CtREC is 0.001 µF.

In case of repeated activations of the internal tREC timer, an interval of 10 ms min. is needed between tREC

intervals to fully discharge CtREC, so that the next tREC1 is as specified.

Closest common

CtREC value (µF)

Min.

Typ.

Max.

0.001

0.002

0.0022

0.01

100

150

200

0.01

0.014

140

210

280

0.015

0.028

280

420

560

0.027

0.056

560

840

1120

0.056

0.112

1120

1680

2240

0.12

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