參數(shù)資料
型號: MSP430P315S
廠商: Texas Instruments, Inc.
英文描述: MIXED SIGNAL MICROCONTROLLERS
中文描述: 混合信號微處理器
文件頁數(shù): 32/70頁
文件大小: 1176K
代理商: MSP430P315S
SLAS368D
OCTOBER 2002
REVISED MARCH 2005
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
POR/brownout reset (BOR) (see Notes 1 and 2)
PARAMETER
t
d(BOR)
V
CC(Start)
V
(B_IT
)
V
hys(B_IT
)
TEST CONDITIONS
MIN
TYP
MAX
2000
UNIT
μ
s
V
dV
CC
/dt
3 V/s (see Figure 10)
dV
CC
/dt
3 V/s (see Figure 10 through Figure 12)
dV
CC
/dt
3 V/s (see Figure 10)
Pulse length needed at RST/NMI pin to accepted reset internally,
V
CC
= 2.2 V/3 V
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
BOR(delay)
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. See the
MSP430x1xx Family User
s Guide
(SLAU049) for more information on the brownout/SVS circuit.
0.7
×
V
(B_IT
)
1.71
180
V
Brownout
70
130
mV
t
(reset)
2
μ
s
NOTES:
typical characteristics
0
1
td(BOR)
VCC
V(B_IT
)
Vhys(B_IT
)
V
CC(Start)
BOR
Figure 10. POR/Brownout Reset (BOR) vs Supply Voltage
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