ADM6321
ADM6321
PRODUCTIONSupervisory Circuit with Watchdog, Manual Reset, and Active-High/Push-Pull Active-Low/Open-Drain
- Part Models
- 5
- 1ku List Price
- Starting From $0.93
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Overview
- 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
- Guaranteed reset output valid to VCC = 1 V
- Power supply glitch immunity
- Specified over industrial temperature range
- 5-lead SOT-23 package
The ADM6316 / 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 devices feature different combinations of watchdog input, manual reset input, and output stage configuration, as shown in Table 1 of the data sheet.
Each device 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). Not all device options are released for sale as standard models. See the Ordering Guide in the data sheet for details.
The ADM6316/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.
APPLICATIONS
- Microprocessor systems
- Computers and controllers
- Intelligent instruments
- Portable equipment
Documentation
Product Selection Guide 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADM6321AY30ARJZ-R7 | 5-Lead SOT-23 | ||
| ADM6321AY31ARJZ-R7 | 5-Lead SOT-23 | ||
| ADM6321AY43ARJZ-R7 | 5-Lead SOT-23 | ||
| ADM6321BZ25ARJZ-R7 | 5-Lead SOT-23 | ||
| ADM6321CY46ARJZ-R7 | 5-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 4, 2010 - 10_0009 Halogen Free Material Change for SOT_23 Products |
||
| ADM6321AY43ARJZ-R7 | PRODUCTION | |
| ADM6321BZ25ARJZ-R7 | PRODUCTION | |
| ADM6321CY46ARJZ-R7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| ADM8321 | RECOMMENDED FOR NEW DESIGNS | Supervisory Circuit with Watchdog, Active-Low Open-Drain and Active-High Push-Pull Reset Outputs |