- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372528 > X1242S8 200V Single N-Channel HEXFET Power MOSFET in a SO-8 package; A IRF7450 with Standard Packaging PDF資料下載
參數(shù)資料
| 型號(hào)： | X1242S8 |
| 英文描述： | 200V Single N-Channel HEXFET Power MOSFET in a SO-8 package; A IRF7450 with Standard Packaging |
| 中文描述： | 集成電路表面貼裝與EEPROM的時(shí)鐘 |
| 文件頁(yè)數(shù)： | 7/24頁(yè) |
| 文件大小： | 119K |
| 代理商： | X1242S8 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)
X1242 – Preliminary Information
Characteristics subject to change without notice.
7 of 24
REV 1.1.3 10/15/00
www.xicor.com
Low Voltage Reset Operation
When a power failure occurs, and the voltage to the
part drops below a fixed v
TRIP
issued to the host microcontroller. The circuitry moni-
tors the V
CC
line with a voltage comparator which
senses a preset threshold voltage. Power up and
power down waveforms are shown in Figure 6. The
Low Voltage Reset circuit is to be designed so the
RESET signal is valid down to 1.0V.
voltage, a reset pulse is
When the low voltage reset signal is active, the opera-
tion of any in progress nonvolatile write write cycle is
unaffected, allowing a nonvolatile write to continue as
long as possible (down to the power on reset voltage).
The low voltage reset signal, when active, terminates
in progress communications to the device and pre-
vents new commands, to reduce the likelihood of data
corruption.
Figure 5. Watchdog Restart/Time Out
Figure 6. Power On Reset and Low Voltage Reset
t
RSP
<t
WDO
t
RST
RESET
SDA
t
RSP
Note:
All inputs are ignored during the active reset period (t
RST
).
t
RST
SCL
t
RSP
>t
WDO
t
RSP
>t
WDO
V
CC
v
TRIP
RESET
t
PURST
t
PURST
t
R
t
F
t
RPD
V
RVALID
V
CC
THRESHOLD RESET PROCEDURE
The X1242 is shipped with a standard V
CC
threshold
(V
TRIP
) voltage. This value will not change over normal
operating and storage conditions. However, in applica-
tions where the standard V
TRIP
is not exactly right, or if
higher precision is needed in the V
TRIP
value, the
X1242 threshold may be adjusted. The procedure is
described below, and uses the application of a nonvol-
atile write control signal.
Setting the V
TRIP
Voltage
This procedure is used to set the V
TRIP
to a higher
voltage value. For example, if the current V
TRIP
is 4.4V
and the new V
TRIP
is 4.6V, this procedure will 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X1242 | Real Time Clock/Calendar/Alarms/CPU Supervisor(實(shí)時(shí)時(shí)鐘/日歷/鬧鐘/帶EEPROM的監(jiān)控) |
| x1243(中文) | Real Time Clock/Calendar/Alarm with EEPROM(帶EEPROM的實(shí)時(shí)時(shí)鐘/日歷/鬧鐘) |
| X12xx-EVM(中文) | Xicor RTC X12xx-EVM User Guide(XICOR RTC X12xx-EVM評(píng)估板使用說明) |
| X187 | TEMPERATURSICHERUNG 187GRAD 5ST |
| X25 | 40V Single N-Channel HEXFET Power MOSFET in a D2-Pak package; A IRL1004S with Standard Packaging |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X1243 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Real Time Clock/Calendar/Alarm with EEPROM |
| X1243S8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Real Time Clock/Calendar/Alarm with EEPROM |
| X1243S8I | 制造商:Intersil Corporation 功能描述: 制造商:XICOR 功能描述: |
| X1243V8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Real Time Clock/Calendar/Alarm with EEPROM |
| X-1244 | 制造商:Pulse 功能描述:TRANSFORMERS - Rail/Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。