MSP430FE42X_10 Datasheet, PDF (24/51 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FE42x
MIXED SIGNAL MICROCONTROLLER
SLAS396C − JULY 2003 − REVISED OCTOBER 2008
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
VCC
V _{(SVS_IT−)}
V(SVSstart)
V(B_IT−)
VCC(start)
V_{hys(SVS_IT−)}
V_{hys(B_IT−)}
Software Sets VLD>0:
SVS is Active
Brownout
1
Brownout
Region
Brownout
Region
0
SVS out
1
t_d(BOR)
SVS Circuit is Active From VLD > to V_CC < V_{(B_IT−)}
t_d(BOR)
0
Set POR
1
0
t_d(SVSon)
Undefined
t_d(SVSR)
Figure 9. SVS Reset (SVSR) vs Supply Voltage
V_CC
t_pw
3V
2
Rectangular Drop
1.5
Triangular Drop
V_CC(drop)
1
0.5
0
1
10
100
t_pw − Pulse Width − µs
1 ns
1 ns
V_CC
t_pw
3V
1000
V_CC(drop)
t_f = t_r
t_f
t_r
t − Pulse Width − µs
Figure 10. V_CC(drop) With a Square Voltage Drop and a Triangle Voltage Drop to Generate an SVS Signal
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