MSP430FG47X Datasheet, PDF (30/91 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
wake-up LPM3
PARAMETER
t_d(LPM3) Delay time
TEST CONDITIONS
f = 1 MHz
f = 2 MHz
f = 3 MHz
V_{CC =} 2.2 V/3 V
MIN MAX UNIT
6
6 s
6
POR/brownout reset (BOR) (see Note 1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
t_d(BOR)
V_CC(start)
V_{(B_IT--)}
V_{hys(B_IT--)}
Brownout
(see Note 2)
dV_CC/dt  3 V/s (see Figure 7)
dV_CC/dt  3 V/s (see Figure 7 through Figure 9)
dV_CC/dt  3 V/s (see Figure 7)
2000
s
0.7  V_{(B_IT--)}
V
1.71
V
mV
t_(reset)
Pulse length needed at RST/NMI pin to accepted reset internally,
V_CC = 2.2 V/3 V
2
s
NOTES:
1. The current consumption of the brownout module is already included in the I_CC current consumption data. The voltage level V_{(B_IT--)}
+ V_{hys(B_IT--)} is  1.8V.
2. During power up, the CPU begins code execution following a period of t_d(BOR) after V_CC = V_{(B_IT--)} + V_{hys(B_IT--)}. The default
FLL+ settings must not be changed until V_CC  V_CC(min), where V_CC(min) is the minimum supply voltage for the desired
operating frequency. See the MSP430x4xx Family User’s Guide (SLAU056) for more information on the brownout.
typical characteristics
VCC
Vhys(B_IT--)
V(B_IT--)
V_CC(start)
1
0
t _d(BOR)
Figure 7. POR/Brownout Reset (BOR) vs Supply Voltage
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