Datasheet

MSP430x41x
MIXED SIGNAL MICROCONTROLLER
SLAS340J − MAY 2001 − REVISED DECEMBER 2008
31
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
V
CC
(drop) − V
0
0.5
1
1.5
2
0.001 1 1000
V = 3 V
Typical Conditions
1 ns 1 ns
t
pw
− Pulse Width − μst
pw
− Pulse Width − μs
cc
V
CC
3 V
V
CC(drop)
t
pw
Figure 15. V
CC(drop)
Level With a Square Voltage Drop to Generate a POR/Brownout Signal
V
CC
3 V
V
CC(drop)
t
pw
0
0.5
1
1.5
2
t
pw
− Pulse Width − μs
0.001 1 1000
t
f
t
r
t
pw
− Pulse Width − μs
t
f
= t
r
V = 3 V
Typical Conditions
cc
V
CC
(drop) − V
Figure 16. V
CC(drop)
Level With a Triangle Voltage Drop to Generate a POR/Brownout Signal
SVS (supply voltage supervisor/monitor) (MSP430x412, MSP430x413 only) (see Notes 1 and 2)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
dV
CC
/dt > 30 V/ms (see Note 2) 5 150 μs
t
d(SVSR)
dV
CC
/dt ≤ 30 V/ms (see Note 2) 2000 μs
t
d(SVSon)
SVSon, switch from 0 to 1, V
CC
= 3 V (see Note 2) 20 150 μs
V
(SVSstart)
SVS
dV
CC
/dt ≤ 3 V/s (see Figure 17) 1.55 1.7 V
V
(SVS_IT−)
SVS
dV
CC
/dt ≤ 3 V/s (see Figure 17) 1.8 1.95 2.2 V
V
hys(SVS_IT−)
dV
CC
/dt ≤ 3 V/s (see Figure 17) 70 100 155 mV
I
CC(SVS)
(see Note 1)
VLD ≠ 0 (VLD bits are in SVSCTL register), V
CC
= 2.2 V/3 V 10 15 μA
NOTES: 1. The current consumption of the SVS module is not included in the I
CC
current consumption data.
2. The SVS is not active at power up.