MSP430F23X0_08 Datasheet, PDF (24/64 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F23x0
MIXED SIGNAL MICROCONTROLLER
SLAS518A -- AUGUST 2006 -- REVISED MAY 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
POR/brownout reset (BOR) (see Notes 1 and 2)
V_CC(start)
V_{(B_IT--)}
V_{hys(B_IT--)}
t_d(BOR)
t_(reset)
PARAMETER
(see Figure 8)
(see Figure 8 through Figure 10)
(see Figure 8)
(see Figure 8)
Pulse length needed at RST/NMI pin
to accepted reset internally
TEST CONDITIONS
dV_CC/dt ≤ 3 V/s
dV_CC/dt ≤ 3 V/s
dV_CC/dt ≤ 3 V/s
VCC
2.2 V/3 V
MIN TYP MAX
0.7 × V_{(B_IT--)}
1.71
70 130 210
2000
UNIT
V
V
mV
μs
2
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
DCO 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.
VCC
Vhys(B_IT--)
V(B_IT--)
V_CC(start)
1
0
t _d(BOR)
Figure 8. POR/Brownout Reset (BOR) vs Supply Voltage
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