參數(shù)資料
型號: MAXQ618J-0000+
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, QCC44
封裝: 7 X 7 MM, ROHS COMPLIANT, TQFN-44
文件頁數(shù): 15/26頁
文件大?。?/td> 1970K
代理商: MAXQ618J-0000+
Maxim Integrated Products 22
MAXQ618
16-Bit Microcontroller with Infrared Module
Figure 11. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
Table 4. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
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.
VPFW
VRST
VPOR
A
B
C
D
E
F
VDD
t
< tPFW
t
≥ tPFW
t
≥ tPFW
STOP
INTERNAL RESET
(ACTIVE HIGH)
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