MAXQ615 Maxim Integrated Products, MAXQ615 Datasheet - Page 16
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MAXQ615
Manufacturer Part Number
MAXQ615
Description
16-Bit MAXQ Microcontroller
Manufacturer
Maxim Integrated Products
Datasheet
1.MAXQ615.pdf
(20 pages)
Figure 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
Table 3. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
STATE
A
B
C
D
E
F
INTERNAL RESET
(ACTIVE HIGH)
POWER-FAIL
(Periodically)
V
V
V
PFW
POR
RST
On
On
On
On
On
Off
STOP
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V
DD
REGULATOR
A
INTERNAL
Off
Off
On
Off
Off
Off
B
t < t
PFW
16-Bit MAXQ Microcontroller with
OSCILLATOR
CRYSTAL
t R t
Off
Off
On
Off
Off
Off
PFW
C
RETENTION
SRAM
www.DataSheet.co.kr
Yes
Yes
Yes
Yes
Yes
—
Application enters stop mode.
V
CPU in stop mode.
Power drop too short.
Power-fail not detected.
V
Power-fail warning detected.
Turn on regulator and crystal.
Crystal warmup time, t
Exit stop mode.
Application enters stop mode.
V
CPU in stop mode.
V
Power-fail detected.
CPU goes into reset.
Power-fail monitor is turned on periodically.
V
Device held in reset. No operation allowed.
Hardware Multiplier
DD
RST
DD
POR
DD
> V
> V
< V
< V
< V
RST
RST
POR
DD
DD
.
.
.
D
< V
< V
PFW
RST
COMMENTS
.
.
XTAL_RDY
t R t
PFW
MAXQ615
E
.
F
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