PCA1462USLASH7 datasheet(16/24 Pages) PHILIPS

16 / 24 page

1998 Apr 21

Philips Semiconductors

Product speciﬁcation

32 kHz watch circuits with adaptive motor

pulse

PCA146x series

TIMING PARAMETERS

Note

1. No option available when EOL indication is required.

SYMBOL

PARAMETER

SECTION

VALUE

OPTION

UNIT

cycle for motor pulse (note 1)

motor pulse (Figs 2, 3 and 4)

5, 10, 12 or 20 s

motor pulse width

7.81

3.9 or 5.9

tDF

duty factor

977

−µs

tONL

last duty factor on

61 to 305

−µs

voltage detection cycle

level mode

−

tSON

duty factor on

silver-oxide mode (Fig.3)

550 to 794

−µs

tSOFF

duty factor off

427 to 183

−µs

tSONF

ﬁrst duty factor on

488

−µs

tAOFF

additional duty factor off

lithium mode (Fig.4)

183

−µs

tLON

duty factor on

305 to 611

−µs

tLOFF

duty factor off

672 to 366

−µs

tLONF

ﬁrst duty factor on

244

−µs

EOL sequence

end-of-life mode

−

tE1

motor pulse width

−

tE2

time between pulses

31.25

−

detection sequence

detection (Fig.7)

4.3 to 28.3

−

tDS

short-circuited motor

977

−µs

tDI

dissipation of energy

977

−µs

tMC

measurement cycle

488

−µs

tM1

phase 1

244

−µs

tM2

phase 2 (measure window)

−µs

tM3

phase 3

122

−µs

tM4

phase 4

−µs

positive current polarities

P < N

negative current polarities

2 to 6

correction sequence

correction sequence (Fig.8)

tP + 30.27

−

tC1

small pulse width

977

−µs

tC2

large pulse width

−

cycles for motor-pulses in:

testing

tT1

test 1

125

−

tT2

test 2

31.25

−

tT3

test 3

Fig.10

31.25 to 39

−

tDEB

debounce time for

RESET = VDD

14.7 to 123.2

−

PCA1462U/7 데이터시트(PDF) 16 Page - NXP Semiconductors

PCA1462U/7 데이터시트(HTML) 16 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

데이터시트 다운로드

링크 URL