0
1
t d(BOR)
VCC
V(B_IT−)
Vhys(B_IT−)
V
CC(start)
MSP430G2744, MSP430G2544, MSP430G2444
www.ti.com
SLAS892C – MARCH 2013 – REVISED SEPTEMBER 2014
5.12 POR and BOR
(1) (2)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX
UNIT
0.7 ×
V
CC(start)
See
Figure 5-8
dV
CC
/dt
≤
3 V/s
V
V
(B_IT-)
V
(B_IT-)
See
Figure 5-8
through
Figure 5-10
dV
CC
/dt
≤
3 V/s
1.35
V
V
hys(B_IT-)
See
Figure 5-8
dV
CC
/dt
≤
3 V/s
140
mV
t
d(BOR)
See
Figure 5-8
2000
µs
Pulse duration needed at RST/NMI pin to
t
(reset)
2.2 V
2
µs
accept reset internally
(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.
Figure 5-8. POR and BOR vs Supply Voltage
Copyright © 2013–2014, Texas Instruments Incorporated
Specifications
19
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