AB18X5-RTC datasheet(29/37 Pages) ABRACON

29 / 37 page

AB18X5 Real-Time Clock with Power

Management Family

Date of Issue: October 16, 2014

3.0 x 3.0 mm

Page 29 of 37

Abracon Drawing #453568

Revision: C

5.11 nRST AC Electrical Characteristics

Figure 21 and Table 14 describe the nRST and nEXTR AC electrical characteristics.

Figure 21. nRST AC Parameter Characteristics

 For Table 14, T

A = -40 °C to 85 °C, TYP at 25 °C unless specified otherwise, VBAT < 1.2 V.

Table 14: nRST AC Electrical Parameters

SYMBOL

PARAMETER

VCC

MIN

TYP

MAX

UNIT

tLOW:VCC

Low period of VCC to ensure a

valid POR

1.7V-3.6V

85 °C

0.1

25 °C

0.1

-20 °C

1.5

-40 °C

tVL:NRST

VCC low to nRST low

1.7V-3.6V

85 °C

0.1

25 °C

0.1

-20 °C

1.5

-40 °C

tVH:NRST

VCC high to nRST high

1.7V-3.6V

85 °C

0.5

25 °C

0.5

-20 °C

3.5

-40 °C

tRL:NRST

nEXTR low to nRST low

1.7V-3.6V

-40 °C to 85 °C

tRH:NRST

nEXTR high to nRST high

1.7V-3.6V

-40 °C to 85 °C

VCC

VCCRST

nRST tVL:NRST

tLOW:VCC

tVH:NRST

nEXTR

tRH:NRST

tRL:NRST

VCCST

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