參數(shù)資料
型號: MSP430F47197IPZR
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP100
封裝: GREEN, PLASTIC, QFP-100
文件頁數(shù): 30/87頁
文件大?。?/td> 1538K
代理商: MSP430F47197IPZR
MSP430F471x3, MSP430F471x6, MSP430F471x7
MIXED SIGNAL MICROCONTROLLER
SLAS626C -- OCTOBER 2008 -- REVISED MARCH 2011
36
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
VCC(start)
dVCC/dt 3V/s
0.7 V(B_IT--)
V
V(B_IT--)
(See Figure 8 through Figure 10)
dVCC/dt 3V/s
1.71
V
Vhys(B_IT--)
dVCC/dt 3V/s
70
130
180
mV
td(BOR)
2000
s
t(reset)
Pulse length needed at RST/NMI pin
to accepted reset internally
2.2 V/3 V
2
s
NOTES: 1. The current consumption of the brownout module is already included in the ICC current consumption data.
The voltage level V(B_IT--) +Vhys(B_IT--) is 1.8 V.
2. During power up, the CPU begins code execution following a period of td(BOR) after VCC =V(B_IT--) +Vhys(B_IT--). The default FLL+
settings must not be changed until VCC VCC(min), where VCC(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/SVS circuit.
0
1
t d(BOR)
VCC
V(B_IT--)
Vhys(B_IT--)
VCC(start)
Figure 8. POR/Brownout Reset (BOR) vs Supply Voltage
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