- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄380768 > STM6777 (意法半導(dǎo)體) Dual/Triple Ultra-Low Voltage Supervisors with Push-Button Reset (with Delay Option) PDF資料下載
參數(shù)資料
| 型號： | STM6777 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Dual/Triple Ultra-Low Voltage Supervisors with Push-Button Reset (with Delay Option) |
| 中文描述： | 雙/三超低電壓的推監(jiān)控，復(fù)位按鈕（帶有延遲期權(quán)） |
| 文件頁數(shù)： | 4/25頁 |
| 文件大?。?/td> | 129K |
| 代理商： | STM6777 |
STM6717/6718/6719/6720/6777/6778/6779*/6780*
4/25
SUMMARY DESCRIPTION
The STM6717/18/19/20 and STM6777/78/79/80
Supervisors are a family of low voltage/low supply
current processor (Micro or DSP) Supervisors, de-
signed to monitor two (or three) system power
supply voltages. They are targeted at applications
such as Set-Top Boxes (STBs), portable, battery-
powered systems, networking, and communica-
tion systems.
All device options have a push-button-type manu-
al reset input (MR). The STM6777/78/79/80 also
includes an option which enables the user to delay
the start of the Manual Reset process from 6μs
(MRC pin left open) or more with external capaci-
tor. The delay is implemented by connecting the
appropriately sized capacitor between the MRC
pin and V
SS
(typical 4s delay with a 3.3μF capaci-
tor, see
Table 7., page 19
).
Two of the three supplies monitored (V
CC1
and
V
CC2
) have fixed (customer-selectable, factory-
trimmed) thresholds (V
RST1
and V
RST2
). The third
voltage is monitored using an externally adjust-
able RSTIN threshold (0.626V internal reference).
If any of the three monitored voltages drop below
its factory-trimmed or adjustable thresholds, or if
MR is asserted to logic low, a RST is asserted
(driven low). Once asserted, RST is maintained at
Low for a minimum delay period (t
rec
) after ALL
supplies rise above their respective thresholds
and MR returns to High. These devices are guar-
anteed to be in the correct reset output logic state
when V
CC1
and/or V
CC2
is greater than 0.8V.
These devices are available in a standard 5-pin or
6-pin SOT23 packages (see
Table 1., page 1
).
Figure 2. Logic Diagram (STM6717/18)
Figure 3. Logic Diagram (STM6719/20)
Figure 4. Logic Diagram (STM6777/78)
Figure 5. Logic Diagram (STM6779/80)
AI10413
V
CC1
STM6717
STM6718
V
SS
V
CC2
RST
MR
AI10414
V
CC1
STM6719
STM6720
V
SS
V
CC2
RST
RSTIN
MR
AI10415
V
CC1
STM6777
STM6778
V
SS
V
CC2
RST
MRC
MR
AI10416
V
CC
STM6779
STM6780
V
SS
RST
MRC
RSTIN
MR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| STM6778 | Dual/Triple Ultra-Low Voltage Supervisors with Push-Button Reset (with Delay Option) |
| STM6779 | Dual/Triple Ultra-Low Voltage Supervisors with Push-Button Reset (with Delay Option) |
| STM6825MJWY6F | 5-pin Supervisor with watchdog timer and push-button reset |
| STM6822SAWY6E | 5-pin Supervisor with watchdog timer and push-button reset |
| STM6822SAWY6F | 5-pin Supervisor with watchdog timer and push-button reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STM6777LTGWB6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) |
| STM6777LTGWB6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) |
| STM6777LTGWY6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) |
| STM6777LTGWY6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) |
| STM6777LTWB6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual/triple ultra-low voltage supervisors with push-button reset (with delay option) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。