DS32kHz

3 of 8

AC TIMING CHARACTERISTICS

(Over the operating range, unless otherwise specified.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Frequency

32.768

kHz

0°C to +40°C

-2.0

+2.0

Frequency Stability vs.

Temperature

-40°C to +85°C or

0°C to +70°C

-7.5

+7.5

ppm

Duty Cycle

45

50

55

%

Cycle Time

(Note 8)

30.518

μs

High/Low Time

(Note 8)

15.06

μs

Rise Time

(Note 8)

200

ns

Fall Time

(Note 8)

60

ns

Oscillator Startup Time

(Note 8)

1

seconds

Frequency Stability vs.

Operating Voltage

(Notes 4, 9)

+2.5

Crystal Aging (First Year)

(Notes 4, 10)

±1.0

ppm

Note 8:

These parameters are measured using a 15pF load.

Note 9:

Error is measured from the nominal supply voltage of whichever supply is powering the device.

Note 10:

After reflow.

Figure 1. DS32kHz Output Waveform