ADM6321CY46ARJ-RL7: Supervisory Circuit with Watchdog and Manual Reset in 5-Lead SOT-23
The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power- on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. The seven parts feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table 1.
Each part is available in a choice of 26 reset threshold options ranging from 2.5 V to 5 V in 100 mV increments. There are also four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms (minimum) and four watchdog timeout options of 6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical).
The ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322 are available in 5-lead SOT-23 packages and typically consume only 3 μA, making them suitable for use in low power portable applications.
ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322是基于微处理器的系统中用来监控电源电压级别和代码执行完整性的监控电路。微处理器在预设的超时周期内未能选通时,片上看门狗定时器可对微处理器进行复位,同时可提供上电复位信号。还可以通过一个外部按钮进行手动复位输入来发出复位信号申明。这七款器件具有不同的看门狗输入、手动复位输入和输出级配置组合,如表1所示。
每款器件都提供26个复位阀值选项,范围为2.5 V至5 V,增量为100 mV。还提供1 ms、20 ms、140 ms和1120 ms（最小值）四个复位超时选项以及6.3 ms、102 ms、1600 ms和25.6 s（典型值）四个看门狗超时选项。
ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ ADM6321/ADM6322采用5引脚SOT-23封装,耗电流仅为3 μA（典型值）,这使其适合用于低功耗便携式应用。
产品应用领域 Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Portable equipment
- 微处理器系统
- 计算机
- 控制器
- 智能仪器仪表
- 便携式设备
ADM6321CY46ARJ-RL7 特点
- 26 reset threshold options
2.5 V to 5 V in 100 mV increments - 4 reset timeout options
1 ms, 20 ms, 140 ms, and 1120 ms (minimum) - 4 watchdog timeout options
6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical) - Manual reset input
- Reset output stages
Push-pull active low
Open-drain active low
Push-pull active high - Low power consumption: 5 μA
- Manual reset input
- Power supply glitch immunity
- Specified over industrial temperature range
- 5-lead SOT-23 package
- 26个复位阀值选项
2.5 V至5 V,增量为100 mV - 4 reset timeout options
1 ms、20 ms、140 ms和1120 ms（最小值） - 4个看门狗超时选项
6.3 ms、102 ms、1600 ms和25.6 s（典型值） - 手动复位输入
- 复位输入级
推挽式低电平有效
开漏式低电平有效
推挽式高电平有效 - 低功耗：5 μA
- 手动复位输入
- 电源干扰抑制
- 额定工作温度范围为工业温度范围
- 5引脚SOT-23封装
ADM6321CY46ARJ-RL7 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM6321AY43ARJZ-R7 | 量产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6321BZ25ARJZ-R7 | 量产 | 5 | 工业 | |
| ADM6321CY46ARJ-RL7 | 量产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6321CY46ARJZ-R7 | 量产 | 5 ld SOT-23 | 5 | 工业 |