ADM6322: 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.
产品应用领域 Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Portable equipment
ADM6322 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
ADM6322 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM6322C46ARJ-RL7 | 量产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6322C46ARJZ-RL7 | 量产 | 5 ld SOT-23 | 5 | 工业 |