Datasheet

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009
46
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
typical characteristics (Continued)
V
CC
0
0.5
1
1.5
2
V
CC(drop)
t
pw
t
pw
− Pulse Width − µs
3 V
0.001 1 1000
t
f
t
r
t
pw
− Pulse Width − µs
t
f
= t
r
Typical Conditions
V
CC
= 3 V
V
CC(drop)
− V
Figure 12. V
CC(drop)
Level With a Triangle Voltage Drop to Generate a POR/Brownout Signal
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
supply voltage supervisor/monitor (SVS)
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
t
dV
CC
/dt > 30 V/ms (see Figure 13) 5 150 µs
t
(SVSR)
dV
CC
/dt ≤ 30 V/ms 2000 µs
t
d(SVSon)
SVSon, switch from VLD=0 to VLD ≠ 0, V
CC
= 3 V 20 150 µs
t
settle
VLD ≠ 0
‡
12 µs
V
(SVSstart)
VLD ≠ 0, V
CC
/dt ≤ 3 V/s (see Figure 13) 1.55 1.7 V
VLD = 1 70 120 155 mV
V
h
y
s
(
SVS_IT−
)
V
CC
/dt ≤ 3 V/s (see Figure 13)
VLD = 2 to 14
V
(SVS_IT−)
× 0.004
V
(SVS_IT−)
× 0.008
V
hys(SVS
_
IT
−
)
V
CC
/dt ≤ 3 V/s (see Figure 13),
external voltage applied on A7
VLD = 15 4.4 10.4 mV
VLD = 1 1.8 1.9 2.05
VLD = 2 1.94 2.1 2.25
VLD = 3 2.05 2.2 2.37
VLD = 4 2.14 2.3 2.48
VLD = 5 2.24 2.4 2.6
VLD = 6 2.33 2.5 2.71
V /dt ≤ 3 V/s (see Figure 13)
VLD = 7 2.46 2.65 2.86
V
(SVS IT )
V
CC
/dt ≤ 3 V/s (see Figure 13)
VLD = 8 2.58 2.8 3
V
V
(SVS_IT−)
VLD = 9 2.69 2.9 3.13
V
VLD = 10 2.83 3.05 3.29
VLD = 11 2.94 3.2 3.42
VLD = 12 3.11 3.35 3.61
†
VLD = 13 3.24 3.5 3.76
†
VLD = 14 3.43 3.7
†
3.99
†
V
CC
/dt ≤ 3 V/s (see Figure 13),
external voltage applied on A7
VLD = 15 1.1 1.2 1.3
I
CC(SVS)
(see Note 3)
VLD ≠ 0, V
CC
= 2.2 V/3 V 10 15 µA
†
The recommended operating voltage range is limited to 3.6 V.
‡
t
settle
is the settling time that the comparator o/p needs to have a stable level after VLD is switched VLD ≠ 0 to a different VLD value somewhere
between 2 and 15. The overdrive is assumed to be > 50 mV.
NOTE 3: The current consumption of the SVS module is not included in the I
CC
current consumption data.