MSP430F2619S-HT Datasheet, PDF (36/90 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2619S-HT
SLAS697B – MARCH 2010 – REVISED JUNE 2011
Typical Characteristics - POR/Brownout Reset (BOR)
2
V_CC = 3 V
Typical Conditions
1.5
VCC
3V
t _pw
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1
VCC(drop)
0.5
0
0.001
1
t_pw − Pulse Width − µs
1000
1 ns
1 ns
t_pw − Pulse Width − µs
Figure 11. V_CC(drop) Level With a Square Voltage Drop to Generate a POR/Brownout Signal
2
V_CC = 3 V
1.5 Typical Conditions
VCC
t _pw
3V
1
VCC(drop)
0.5
0
0.001
1
t_pw − Pulse Width − µs
1000
t_f = t_r
t_f
t_r
t_pw − Pulse Width − µs
Figure 12. V_CC(drop) Level With a Triangle Voltage Drop to Generate a POR/Brownout Signal
SVS (Supply Voltage Supervisor/Monitor) - Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
t_(SVSR)
t_d(SVSon)
t_settle
V_(SVSstart)
V_{hys(SVS_IT-)}
dV_CC/dt > 30 V/ms (See Figure 13)
dV_CC/dt ≤ 30 V/ms
SVSON, switch from VLD = 0 to VLD ≠ 0, V_CC = 3 V
VLD ≠ 0 (See ⁽¹⁾)
VLD ≠ 0, V_CC/dt ≤ 3 V/s (See Figure 13)
V_CC/dt ≤ 3 V/s (See Figure 13)
VLD = 1
VLD = 2 to 14
V_CC/dt ≤ 3 V/s (See Figure 13),
External voltage applied on A7
VLD = 15
5
20
70
V_{(SVS_IT-)} ×
0.004
4.4
TYP
MAX
150
2000
150
12
1.55
1.7
120
210
V_{(SVS_IT-)} ×
0.016
UNIT
μs
μs
μs
V
mV
V
20 mV
(1) 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
between 2 and 15. The overdrive is assumed to be > 50 mV.
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