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參數(shù)資料
| 型號： | X40620 |
| 元件分類： | CPU監(jiān)測 |
| 英文描述： | RTC Module With CPU Supervisor |
| 中文描述： | 時鐘模塊CPU監(jiān)控 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大小： | 350K |
| 代理商： | X40620 |
X40620
Characteristics subject to change without notice.
5 of 17
Figure 5. Reset V2
TRIP
Level Sequence (V
CC
> 3V, WEL is set.)
SDA
D8h
00h
RESET
V
P
= 15V
V
TRIP
V
CC
03h
03h resets V
CC
SCL
0
1
2 3
4
5 6
7
0 1
2 3
4
5 6
7
0 1
2 3
4
5 6
7
0 1
2 3
4
5 6
7
00h
V
CC
The X40620 is shipped with standard V
V2
TRIP
voltages. These values will not change over
normal operating and storage conditions. However, in
applications where the standard thresholds are not
exactly right, or if higher precision is needed in the
threshold value, the X40620 trip points may be
adjusted. The procedure is described below, and uses
the application of a high voltage control signal.
AND V2MON THRESHOLD RESET PROCEDURE
TRIP
and
Setting the V
This procedure is used to set the V
higher voltage value. For example, if the current V
is 4.4V and the new V
TRIP
directly make the change. If the new setting is to be
lower than the current setting, then it is necessary to
reset the trip point before setting the new value.
TRIP
Voltage
TRIP
,V2
TRIP
to a
TRIP
is 4.6V, this procedure will
To set the new voltages, apply the desired V
old voltage to the V
CC
V2MON pin, then tie the RESET pin to the programming
voltage V
P
. Then, write data 01h or 0Dh at address
TRIP
thresh-
pin, the V2
TRIP
voltage to the
00h to program V
bit following a valid write operation initiates the pro-
gramming sequence. Bring RESET
the operation. Note: this operation also writes 01h or
0Dh to address 00h.
TRIP
, V2
TRIP
respectively. The stop
LOW to complete
Resetting the V
This procedure is used to set the V
a “native” voltage level. For example, if the current
V
TRIP
is 4.4V and the new V
the V
TRIP
must be reset. When the threshold is reset,
the new level is something less than 1.7V. This proce-
dure must be used to set the voltage to a lower value.
TRIP
Voltage
TRIP
, the V2
TRIP
to
TRIP
must be 4.0V, then
To reset the new V
desired V
TRIP
V
CC
or V2MON pin, respectively, and tie the RESET
pin to the programming voltage V
0Fh to address 00h. The stop bit of a valid write opera-
tion initiates the programming sequence. Bring
RESET
LOW to complete the operation. Note: this
operation also writes 03h or 0Fh to address 00h of the
EEPROM array.
TRIP
TRIP
, V2
TRIP
threshold voltage to the
voltage, apply the
or V2
P
. Then write 03h or
Figure 6. Sample V
TRIP
Reset Circuit
5
4
7
1
8
2
6
3
X40620
V
TRIP
Adj.
V
P
RESET
4.7K
SDA
SCL
μC
Adjust
Run
V2FAIL
V2
TRIP
Adj.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| X40620V8-2.9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8-3.1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8-3.1A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8E-2.9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| X40620V8E-3.1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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