MSP430F4796IPZ Datasheet, PDF (30/89 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F47x
MIXED SIGNAL MICROCONTROLLER
SLAS629A -- MARCH 2009 -- REVISED APRIL 2009
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 TYP MAX UNIT
6
6 µs
6
POR/brownout reset (BOR) (see Note 1)
PARAMETER
t_d(BOR)
V_CC(start)
V_{(B_IT--)}
V_{hys(B_IT--)}
Brownout
(see Note 2)
TEST CONDITIONS
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)
MIN
TYP
MAX
2000
0.7 × V_{(B_IT--)}
1.71
UNIT
µs
V
V
mV
t_(reset)
Pulse length needed at RST/NMI pin to accepted reset internally,
2
V_CC = 2.2 V/3 V
µs
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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