The ADM8316 / ADM8318 / ADM8319 / ADM8320 / ADM8321 / ADM8322 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 switch through a manual reset input. The six devices feature different combinations of watchdog input, manual reset input, and output stage configuration.
Each device is available in a choice of 27 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, 1.6 sec, and 25.6 sec (typical).
The ADM8316 / ADM8318 / ADM8319 / ADM8320 / ADM8321 / ADM8322 are available in 5-lead SOT-23 packages and typically consume only 10 µA, making them suitable for use in low power, portable applications.
Features and Benefits
| Power Management |
| Document | note |
| ADM8316/ADM8318/ADM8319/ADM8320/ADM8321/ADM8322: Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23 Data Sheet (Rev. B) | PDF 298.17 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADM8320WBX3NARJZR7 Production | SOT23 5/6/8 Leads | REEL 3000 | -40 to 105C | 0 | 0 | Y |
| ADM8320WCY29ARJZR7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.69 | Y |
| ADM8320WCZ29ARJZR7 Production | SOT23 5/6/8 Leads | REEL 3000 | -40 to 125C | 0 | 0.69 | Y |
| ADM8320WCZ33ARJZR7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.69 | Y |
