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| 型号： | MCP1319T-29LE/OT |
| 厂商： | Microchip Technology |
| 文件页数： | 24/52页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR 2.9V PP/PP SOT23-5 |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.9V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
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MCP131X/2X
TABLE 3-1:
PIN FUNCTION TABLE (CONTINUED)
Pin No.
SOT23-5
3
Device
MCP1316,
Symbol
MR
Pin
Type
I
Buffer/
Driver
Type
ST
Function
Manual Reset input for a Reset switch.
MCP1316M,
MCP1317,
MCP1320
This input allows a push button switch to be directly con-
nected to the MCP131X/2X MR pin, which can then be
used to force a system Reset. Thi s input filters (ignores)
noise pulses that occur on the MR pin.
L = Switch is depressed (shorted to ground). This forces
the RST/RST pins Active.
H = Switch is open (internal pull-up resistor pulls signal
high). State of the RST/RST pins determined by
other system conditions.
MCP1318,
RST
O
Push-Pull
Reset Output (active-high)
MCP1318M,
MCP1319,
MCP1319M,
MCP1321,
MCP1322
Goes active (High) if one of these conditions occurs:
1. If V DD falls below the selected Reset voltage
threshold.
2. If the MR pin is forced low.
3. If the WDI pin does not detect an edge transition
within the minimum selected time out period.
4. During power-up.
V DD Falling:
H = V DD < V TRIP
L = V DD > V TRIP
V DD Rising:
H = V DD < V TRIP + V HYS
L = V DD > V TRIP + V HYS
4
MCP1316,
WDI
I
ST
Watchdog Timer Input
MCP1316M,
MCP1317,
MCP1318,
MCP1318M,
MCP1320,
MCP1321
The WDT period is specified at the time of device order.
The Standard WDT period is 1.6s typical.
An edge transition on the WDI pin resets the Watchdog
Timer counter (no time out). A Falling Edge is required to
start the WDT Timer.
MCP1319,
MR
I
ST
Manual Reset input for a Reset switch.
MCP1319M,
MCP1322
This input allows a push button switch to be directly con-
nected to the MCP131X/2X MR pin, which can then be
used to force a system Reset. Thi s input filters (ignores)
noise pulses that occur on the MR pin.
L = Switch is depressed (shorted to ground). This forces
the RST/RST pins Active.
H = Switch is open (internal pull-up resistor pulls signal
high). State of the RST/RST pins determined by
other system conditions.
5
All
V DD
—
P
The positive supply for the device.
Note 1:
Open-Drain output with internal pull-up resistor.
DS21985C-page 24
? 2005-2012 Microchip Technology Inc.
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