参数资料
型号: MSP430F1491IPMRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQFP64
封装: GREEN, PLASTIC, LQFP-64
文件页数: 25/65页
文件大小: 1216K
代理商: MSP430F1491IPMRG4
MSP430x13x, MSP430x14x, MSP430x14x1
MIXED SIGNAL MICROCONTROLLER
SLAS272F JULY 2000 REVISED JUNE 2004
31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
PUC/POR
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t(POR_Delay)
Internal time delay to release POR
150
250
s
VCC threshold at which POR
TA = 40°C
1.4
1.8
V
VPOR
VCC threshold at which POR
release delay time begins
(see Note 1)
TA = 25°C
1.1
1.5
V
VPOR
release delay time begins
(see Note 1)
TA = 85°C
VCC = 2.2 V/3 V
0.8
1.2
V
V(min)
VCC threshold required to
generate a POR (see Note 2)
VCC |dV/dt| ≥ 1V/ms
CC
0.2
V
t(reset)
RST/NMI low time for PUC/POR
Reset is accepted internally
2
s
NOTES:
1. VCC rise time dV/dt ≥ 1V/ms.
2. When driving VCC low in order to generate a POR condition, VCC should be driven to 200mV or lower with a dV/dt equal to or less
than 1V/ms. The corresponding rising VCC must also meet the dV/dt requirement equal to or greater than +1V/ms.
VCC
POR
V
t
V
POR
V
(min)
POR
No POR
Figure 10. Power-On Reset (POR) vs Supply Voltage
1.2
1.5
1.8
0.8
1.2
1.4
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
40
20
0
20
40
60
80
25
°C
TA Temperature °C
V
POR
V
Figure 11. VPOR vs Temperature
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