7.9 Electrical Characteristics: Oscillator
VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)
| PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
| f(OSC) |
Operating frequency |
|
|
|
4.194 |
MHz |
| f(EIO) |
Frequency error(1)(2) |
|
–3% |
0.25% |
3% |
|
| TA = 20°C to 70°C |
–2 |
0.25 |
2 |
|
| t(SXO) |
Start-up time(3) |
|
|
2.5 |
5 |
ms |
| LOW FREQUENCY OSCILLATOR |
| f(LOSC) |
Operating frequency |
|
|
32.768 |
|
kHz |
| f(LEIO) |
Frequency error(2)(4) |
|
–2.5% |
0.25% |
2.5% |
|
| TA = 20°C to 70°C |
–1.5 |
0.25 |
1.5 |
|
| t(LSXO) |
Start-up time(5) |
|
|
|
500 |
ms |
(1) The frequency error is measured from 4.194 MHz.
(2) The frequency drift is included and measured from the trimmed frequency at VCC = 2.5 V, TA = 25°C.
(3) The start-up time is defined as the time it takes for the oscillator output frequency to be within 1% of the specified frequency.
(4) The frequency error is measured from 32.768 kHz.
(5) The start-up time is defined as the time it takes for the oscillator output frequency to be ±3%.