- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372534 > X5323(中文) RTC Module With CPU Supervisor PDF資料下載
參數(shù)資料
| 型號(hào)： | X5323(中文) |
| 元件分類： | CPU監(jiān)測 |
| 英文描述： | RTC Module With CPU Supervisor |
| 中文描述： | 時(shí)鐘模塊CPU監(jiān)控 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 114K |
| 代理商： | X5323(中文) |
X5323/X5325
3
PRINCIPLES OF OPERATION
POWER ON RESET
Application of power to the X5323/X5325 activates a
Power On Reset Circuit. This circuit goes active at about
1V and pulls the RESET/RESET pin active. This signal
prevents the system microprocessor from starting to oper-
ate with insufficient voltage or prior to stabilization of the
oscillator. When Vcc exceeds the device V
200ms (nominal) the circuit releases RESET/RESET,
allowing the processor to begin executing code.
TRIP
value for
LOW VOLTAGE MONITORING
During operation, the X5323/X5325 monitors the V
level and asserts RESET/RESET if supply voltage falls
below a preset minimum V
TRIP
nal prevents the microprocessor from operating in a
power fail or brownout condition. The RESET/RESET sig-
nal remains active until the voltage drops below 1V. It also
remains active until Vcc returns and exceeds V
200ms.
CC
. The RESET/RESET sig-
TRIP
for
WATCHDOG TIMER
The Watchdog Timer circuit monitors the microprocessor
activity by monitoring the WDI input. The micorprocessor
must toggle the CS/WDI pin periodically to prevent a
RESET/RESET signal. The CS/WDI pin must be toggled
from HIGH to LOW prior to the expiration of the watchdog
time-out period. The state of two nonvolatile control bits in
the Status Register determine the watchdog timer period.
The microprocessor can change these watchdog bits, or
they may be “l(fā)ocked” by tying the WP pin LOW and setting
the WPEN bit HIGH.
VCC THRESHOLD RESET PROCEDURE
The X5323/X5325 has a standard Vcc threshold (V
voltage. This value will not change over normal operating
and storage conditions. However, in applications where
the standard V
TRIP
is not exactly right, or for higher preci-
sion in the V
TRIP
value, the X5323/X5325 threshold may
be adjusted.
TRIP
)
Setting the V
This procedure sets the V
For example, if the current V
V
TRIP
is 4.6V, this procedure directly makes the change. If
the new setting is lower than the current setting, then it is
necessary to reset the trip point before setting the new
value.
TRIP
Voltage
TRIP
to a higher voltage value.
TRIP
is 4.4V and the new
To set the new V
threshold to the Vcc pin and tie the CS/WDI pin and the
WP pin HIGH. RESET/RESET and SO pins are left
unconnected. Then apply the programming voltage Vp to
both SCK and SI and pulse CS/WDI LOW then HIGH.
Remove Vp and the sequence is complete.
TRIP
voltage, apply the desired V
TRIP
Figure 1. Set V
TRIP
Voltage
Resetting the V
This procedure sets the V
For example, if the current V
reset, the new V
procedure must be used to set the voltage to a lower
value.
TRIP
Voltage
TRIP
TRIP
to a “native” voltage level.
is 4.4V and the V
is something less than 1.7V. This
TRIP
is
TRIP
To reset the V
and 5.5V to the Vcc pin. Tie the CS/WDI pin, the WP pin,
AND THE SCK pin HIGH. RESET/RESET and SO pins
are left unconnected. Then apply the programming volt-
age Vp to the SI pin ONLY and pulse CS/WDI LOW then
HIGH. Remove Vp and the sequence is complete.
TRIP
voltage, apply a voltage between 2.7
Figure 2. Reset V
TRIP
Voltage
SCK
SI
Vp
Vp
CS
SCK
SI
Vcc
Vp
CS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X5323 | RTC Module With CPU Supervisor |
| X5325 | RTC Module With CPU Supervisor |
| X5323V14Z-2.7A | EDDC CABLE 25C 50 FT FF |
| X5323V14Z-4.5A | EXT DIST RS232 DATA CBL DB25 MALE - DB25 FEMALE |
| X5323 | CPU Supervisor with 32Kb SPI EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X5323P | 功能描述:IC SUPERVISOR CPU 32K EE 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:推挽式，圖騰柱 復(fù)位:低有效 復(fù)位超時(shí):最小 145 ms 電壓 - 閥值:2.64V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-TQFN-EP（4x4） 包裝:帶卷 (TR) |
| X5323P-2.7 | 功能描述:IC SUPERVISOR CPU 32K EE 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:推挽式，圖騰柱 復(fù)位:低有效 復(fù)位超時(shí):最小 145 ms 電壓 - 閥值:2.64V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-TQFN-EP（4x4） 包裝:帶卷 (TR) |
| X5323P-2.7A | 功能描述:IC SUPERVISOR CPU 32K EE 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:推挽式，圖騰柱 復(fù)位:低有效 復(fù)位超時(shí):最小 145 ms 電壓 - 閥值:2.64V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-TQFN-EP（4x4） 包裝:帶卷 (TR) |
| X5323P-4.5A | 功能描述:IC SUPERVISOR CPU 32K EE 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:推挽式，圖騰柱 復(fù)位:低有效 復(fù)位超時(shí):最小 145 ms 電壓 - 閥值:2.64V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-TQFN-EP（4x4） 包裝:帶卷 (TR) |
| X5323PI | 功能描述:IC SUPERVISOR CPU 32K EE 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:推挽式，圖騰柱 復(fù)位:低有效 復(fù)位超時(shí):最小 145 ms 電壓 - 閥值:2.64V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-TQFN-EP（4x4） 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。