参数资料
型号: MSP430F2234IRHA
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, PQCC40
封装: GREEN, PLASTIC, QFN-40
文件页数: 27/94页
文件大小: 1583K
代理商: MSP430F2234IRHA
0
1
t d(BOR)
VCC
V(B_IT)
Vhys(B_IT)
VCC(start)
MSP430F22x2
MSP430F22x4
SLAS504E
– JULY 2006 – REVISED MARCH 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
0.7
×
VCC(start)
dVCC /dt ≤ 3 V/s
V
V(B_IT-)
See Figure 8 through Figure 10
dVCC /dt ≤ 3 V/s
1.71
V
Vhys(B_IT-)
dVCC /dt ≤ 3 V/s
70
130
210
mV
td(BOR)
2000
s
Pulse length needed at RST/NMI pin
t(reset)
3 V
2
s
to 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 8. POR/Brownout Reset (BOR) vs Supply Voltage
Copyright
2006–2011, Texas Instruments Incorporated
33
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