MSP430G2333-Q1 Datasheet, PDF (24/62 Pages) Texas Instruments – Automotive Mixed-Signal Microcontroller

MSP430G2333-Q1
SLAS802A – OCTOBER 2013 – REVISED MARCH 2014
www.ti.com
9.14 POR, BOR⁽¹⁾⁽²⁾
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
V_CC(start)
V_{(B_IT–)}
V_{hys(B_IT–)}
t_d(BOR)
t_(reset)
PARAMETER
See Figure 13
See Figure 13 through Figure 15
See Figure 13
See Figure 13
Pulse duration 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
V_CC
2.2 V
MIN TYP
0.7 ×
V_{(B_IT--)}
1.35
140
2000
2
MAX UNIT
V
V
mV
µs
µs
(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 ≤ 1.8 V.
(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(s t ar t )}
1
0
t _d(BOR)
Figure 13. POR and BOR vs Supply Voltage
2
V_CC = 3 V
Typical Conditions
1.5
VCC
t _pw
3V
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 14. V_CC(drop) Level With a Square Voltage Drop to Generate a POR or BOR Signal
24
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