Texas Instruments IC MCU 16B MSP430F235TPM LQFP-64 TID MSP430F235TPM 데이터 시트
제품 코드
MSP430F235TPM
0
1
t d(BOR)
VCC
V(B_IT−)
Vhys(B_IT−)
V
CC(start)
MSP430F23x
MSP430F24x(1)
MSP430F2410
MSP430F24x(1)
MSP430F2410
SLAS547I – JUNE 2007 – REVISED DECEMBER 2012
POR and Brownout Reset (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
V
CC(start)
Operating voltage
dV
CC
/dt
≤
3 V/s
0.7 × V
(B_IT-)
V
V
(B_IT-)
Negative going V
CC
reset threshold voltage
dV
CC
/dt
≤
3 V/s
1.71
V
V
hys(B_IT-)
V
CC
reset threshold hysteresis
dV
CC
/dt
≤
3 V/s
70
130
210
mV
t
d(BOR)
BOR reset release delay time
2000
µs
Pulse duration needed at RST/NMI pin to
t
(reset)
2.2 V, 3 V
2
µs
accepted 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 9. POR/Brownout Reset (BOR) vs Supply Voltage
38
Copyright © 2007–2012, Texas Instruments Incorporated