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| 型号： | TCM809ZVNB713 |
| 厂商： | Microchip Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC RESET MONITOR 2.32V SOT23B-3 |
| 标准包装： | 1 |
| 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： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.32V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 标准包装 |
| 产品目录页面： | 662 (CN2011-ZH PDF) |
| 其它名称： | TCM809ZVNB713DKR |
TCM809/TCM810
4.3
Controllers and Processors With
Bidirectional I/O Pins
Some microcontrollers have bidirectional reset pins.
Depending on the current drive capability of the control-
ler pin, an indeterminate logic level may result if there
V DD
Buffer
Buffered RESET
To Other System
Components
is a logic conflict. This can be avoided by adding a
4.7 k Ω resistor in series with the output of the TCM809/
TCM810 (Figure 4-3). If there are other components in
the system that require a reset signal, they should be
TCM809
RESET
4.7 k Ω
PICmicro ?
Micro-
controller
RESET
buffered so as not to load the reset line. If the other
components are required to follow the reset I/O of the
microcontroller, the buffer should be connected as
shown with the solid line.
GND
FIGURE 4-3:
GND
Interfacing the TCM809 to a
Bidirectional RESET I/O.
DS21661D-page 6
? 2005 Microchip Technology Inc.
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