参数资料
型号: MAXQ612J-0000+
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, QCC44
封装: ROHS COMPLIANT, TQFN-44
文件页数: 25/35页
文件大小: 1430K
代理商: MAXQ612J-0000+
16-Bit Microcontrollers with
Infrared Module and Optional USB
MAXQ612/MAXQ622
______________________________________________________________________________________ 31
Table 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
Figure 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
VPFW
VRST
VPOR
A
B
C
D
E
F
VDD
t
< tPFW
t
≥ tPFW
t
≥ tPFW
STOP
INTERNAL RESET
(ACTIVE HIGH)
STATE
POWER-FAIL
INTERNAL
REGULATOR
CRYSTAL
OSCILLATOR
SRAM
RETENTION
COMMENTS
A
On
Off
Yes
Application enters stop mode.
VDD > VRST.
CPU in stop mode.
B
On
Off
Yes
Power drop too short.
Power-fail not detected.
C
On
Yes
VRST < VDD < VPFW.
Power-fail warning detected.
Turn on regulator and crystal.
Crystal warmup time, tXTAL_RDY.
Exit stop mode.
D
On
Off
Yes
Application enters stop mode.
VDD > VRST.
CPU in stop mode.
E
On
(Periodically)
Off
Yes
VPOR < VDD < VRST.
Power-fail detected.
CPU goes into reset.
Power-fail monitor turns on periodically.
F
Off
VDD < VPOR.
Device held in reset. No operation allowed.
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