MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
wake-up LPM3
PARAMETER
TEST CONDITIONS
f = 1 MHz
MIN
MAX
UNIT
6
6
6
f = 2 MHz
f = 3 MHz
t
Delay time
V
= 2.2 V/3 V
CC
s
d(LPM3)
POR/brownout reset (BOR) (see Note 1)
PARAMETER
TEST CONDITIONS
MIN
TYP
0.7 V
MAX
UNIT
s
t
2000
d(BOR)
V
dV /dt 3 V/s (see Figure 7)
V
CC(start)
CC
(B_IT--)
Brownout
V
V
dV /dt 3 V/s (see Figure 7)
1.71
V
(B_IT--)
CC
(see Note 2)
dV /dt 3 V/s (see Figure 7)
CC
mV
hys(B_IT--)
Pulse length needed at RST/NMI pin to accepted reset internally,
= 2.2 V/3 V
t
2
s
(reset)
V
CC
NOTES: 1. The current consumption of the brownout module is already included in the I current consumption data.
CC
The voltage level V
+ V
is 1.8V.
(B_IT--)
hys(B_IT--)
2. During power up, the CPU begins code execution following a period of t
after V = V
+ V
. The default FLL+
hys(B_IT--)
d(BOR)
CC
(B_IT--)
settings must not bechangeduntil V V
, where V
is the minimum supply voltage for the desired operating frequency.
CC
CC(min)
CC(min)
See the MSP430x4xx Family User’s Guide (SLAU056) for more information on the brownout.
typical characteristics
V
CC
V
hys(B_IT--)
V
(B_IT--)
V
CC(start)
1
0
t
d(BOR)
Figure 7. POR/Brownout Reset (BOR) vs Supply Voltage
29
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