参数资料
型号: MSP430F247TRGC
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, QCC64
封装: PLASTIC, QFN-64
文件页数: 32/91页
文件大小: 1246K
代理商: MSP430F247TRGC
0
1
t d(BOR)
VCC
V(B_IT)
Vhys(B_IT)
VCC(start)
MSP430F23x
MSP430F24x(1)
MSP430F2410
SLAS547H
– JUNE 2007 – REVISED AUGUST 2011
POR/Brownout Reset (BOR)
(1) (2)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
VCC(start)
Operating voltage
dVCC /dt ≤ 3 V/s
0.7
× V(B_IT-)
V
V(B_IT-)
Negative going VCC reset threshold voltage
dVCC /dt ≤ 3 V/s
1.71
V
Vhys(B_IT-)
VCC reset threshold hysteresis
dVCC /dt ≤ 3 V/s
70
130
210
mV
td(BOR)
BOR reset release delay time
2000
s
Pulse length needed at RST/NMI pin to
t(reset)
2.2 V/3 V
2
s
accepted reset internally
(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 DCO settings
must not be changed until VCC ≥ VCC(min), where VCC(min) is the minimum supply voltage for the desired operating frequency.
Figure 9. POR/Brownout Reset (BOR) vs Supply Voltage
38
Copyright
2007–2011, Texas Instruments Incorporated
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