AB18X5 Real-Time Clock with Power

Management Family

Date of Issue: October 16, 2014

3.0 x 3.0 mm

Page 24 of 37

Abracon Drawing #453568

Revision: C

5.7 BREF Electrical Characteristics

Table 10 lists the parameters of the VBAT voltage thresholds. BREF values other than those listed in the

table are not supported.

Table 10: BREF Parameters

SYMBOL

PARAMETER

BREF

MIN

TYP

MAX

UNIT

VBAT falling threshold

0111

2.3

2.5

3.3

V

1011

1.9

2.1

2.8

1101

1.6

1.8

2.5

1111

1.4

VBAT rising threshold

0111

2.6

3.0

3.4

V

1011

2.1

2.5

2.9

1101

1.9

2.2

2.7

1111

1.6

VBAT threshold hysteresis

0111

0.5

V

1011

0.4

1101

0.4

1111

0.2

VBAT analog comparator recom-

mended operating temperature range

All values

-20

70

°C