Datasheet

10.0
20.0
30.0
40.0
0 10 20 30 40 50 60
V
CC
0.9 V
1.0 V
1.3 V
1.65 V
Frequency – kHz
T – Temperature – °C
A
MSP430L092
MSP430C09x
SLAS673 –SEPTEMBER 2010 www.ti.com
Low-Frequency Oscillator
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f
LFOSC
V
CC
= 0.9 V to 1.65 V 6 20 45 kHz
Duty cycle V
CC
= 0.9 V to 1.65 V 45 50 55 %
t
START
V
CC
= 0.9 V to 1.65 V 500 µs
I
OSC
V
CC
= 0.9 V to 1.65 V, f
LFOSC
= 20 kHz 0.6 µA
Typical Characteristics – Low-Frequency Oscillator
FREQUENCY vs TEMPERATURE
Figure 14.
Brown-Out Reset (BOR)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
BOR(Start)
490 mV
V
(BOR_IT+)
V
CC
rising, ΔV
CC
/Δt < 3 V/s 1095 1150 mV
V
(BOR_IT–)
V
CC
falling, ΔV
CC
/Δt < 3 V/s 860 900 mV
V
hys(BOR)
200 mV
V
MARGIN
V
MARGIN
= V
(BOR-IT–)
– V
CRIT
, (V
CRIT
< 820 mV)
(1)
40 mV
3000
(2
t
d(BOR)
µs
)
(1) V
CRIT
is a temperature depending voltage where the single components of the device become unreliable (the 'L092 provides a safety
margin to ensure overall device function).
(2) Strongly depends on voltage ramp in system (actually a maximum typical value).
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