MAXQ613 Maxim, MAXQ613 Datasheet - Page 25
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MAXQ613
Manufacturer Part Number
MAXQ613
Description
The MAXQ613 is a low-power, 16-bit MAXQ® microcontroller designed for low-power applications including universal remote controls, consumer electronics, and white goods
Manufacturer
Maxim
Datasheet
1.MAXQ613.pdf
(28 pages)
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Figure 13. Stop Mode Power-Fail Detection with Power-Fail Monitor Disabled
Table 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Disabled
STATE
A
B
C
INTERNAL RESET
(ACTIVE HIGH)
16-Bit Microcontroller with Infrared Module
POWER-FAIL
INTERRUPT
V
V
V
PFW
POR
RST
STOP
Off
Off
On
______________________________________________________________________________________
V
DD
A
REGULATOR
INTERNAL
B
Off
Off
On
OSCILLATOR
CRYSTAL
Off
Off
On
C
RETENTION
SRAM
Yes
Yes
Yes
Application enters stop mode.
V
CPU in stop mode.
V
Power-fail not detected because power-fail
monitor is disabled.
V
An interrupt occurs that causes the CPU to
exit stop mode.
Power-fail monitor is turned on, detects a
power-fail warning, and sets the power-fail
interrupt flag.
Turn on regulator and crystal.
Crystal warmup time, t
On stop mode exit, CPU vectors to the
higher priority of power-fail and the inter-
rupt that causes stop mode exit.
DD
DD
RST
> V
< V
< V
D
RST
PFW
DD
.
.
< V
COMMENTS
PFW
.
XTAL_RDY
E
F
.
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