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ç�†å™¨çš„系统ä¸ç”¨æ�¥ç›‘控电æº�电压级别和代ç �执行完整性的监控电路。微处ç�†å™¨åœ¨é¢„设的超时周期内未能选通时,片上看门狗定时器å�¯å¯¹å¾®å¤„ç�†å™¨è¿›è¡Œå¤�ä½�,å�Œæ—¶å�¯æ��供上电å¤�ä½�ä¿¡å�·ã€‚还å�¯ä»¥é€šè¿‡ä¸€ä¸ªå¤–部按钮进行手动å¤�ä½�输入æ�¥å�‘出å¤�ä½�ä¿¡å�·ç”³æ˜Žã€‚这七款器件具有ä¸�å�Œçš„看门狗输入ã€�手动å¤�ä½�输入和输出级é…�置组å�ˆ,如表1所示。
�款器件都�供26个��阀值选项,范围为2.5 V至5 V,增�为100 mV。还�供1 ms�20 ms�140 ms和1120 ms(最�值)四个��超时选项以�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�装,耗电�仅为3 μA(典型值),这使其适�用于低功耗便��应用。
| 产�型� | 产�状� | �装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM6320BX33ARJZ-R7 | �产 |  | 5 | 工业 |
| ADM6320BX45ARJZ-R7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CW33ARJZ-R7 | �产 |  | 5 | 工业 |
| ADM6320CX29ARJZ-R7 | �产 |  | 5 | 工业 |
| ADM6320CY29ARJ-RL7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CY29ARJZ-R7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CY46ARJ-RL7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CY46ARJZ-R7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CZ29ARJ-RL7 | �产 | 5 ld SOT-23 | 5 | 工业 |
| ADM6320CZ29ARJZ-R7 | �产 | 5 ld SOT-23 | 5 | 工业 |