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Parametric specs for Supervisors (1 Monitored Voltage)
| Reset Thresh. (V) | 2.5 to 3.3 |
| Reset Thresh. Accur. (%) (@ +25°C) | 2.5 |
| Reset Out | Active High Active Low Push-Pull |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Watchdog Timeout | 1s to 2s <1s |
| Supervisor Features | Manual Reset |
| ICC (µA) (max) | 35 |
| Package/Pins | PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.4 |
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Technical Docs
| データシート | 3.3V MicroMonitorチップ | Nov 20, 1999 |
パラメーター
Parametric specs for Supervisors (1 Monitored Voltage)
| Reset Thresh. (V) | 2.5 to 3.3 |
| Reset Thresh. Accur. (%) (@ +25°C) | 2.5 |
| Reset Out | Active High Active Low Push-Pull |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | No Watchdog |
| Watchdog Timeout | 1s to 2s <1s |
| Supervisor Features | Manual Reset |
| ICC (µA) (max) | 35 |
| Package/Pins | PDIP/8 SOIC (N)/8 UMAX/8 |
| Budgetary Price (See Notes) | 1.4 |
主な特長
- Power-fail detection
- Pushbutton reset
- Watchdog timer
- Active high and low resets
- Quiescent current less than 35µA
- Operating ranges:
- -40°C to +85°C
- 3.0V with 20% tolerance or
- 3.3V with 10% or 20% tolerance
アプリケーション/用途
説明
The DS1832 3.3-volt MicroMonitor Chip is pin-compatible with the industry-standard DS1232 and operates in both 3.0- and 3.3-volt environments. Like the DS1232, the DS1832 monitors power supply, software execution, and an external pushbutton override. It is designed with CMOS outputs and is capable of maintaining a valid output on the active low reset to 0 volts with a 100kΩ pull-down resistor. On power-up, the DS1832 holds reset for 250ms to allow the system to stabilize.
Moving a design from 5 volts to 3.3 volts can be as simple as substituting the DS1832 for the DS1232 and removing the pull-up resistor on the active low reset. This makes it a versatile, space- and cost-saving monitor for any processor-driven system requiring reliable operation.
Moving a design from 5 volts to 3.3 volts can be as simple as substituting the DS1832 for the DS1232 and removing the pull-up resistor on the active low reset. This makes it a versatile, space- and cost-saving monitor for any processor-driven system requiring reliable operation.
Technical Docs
| データシート | 3.3V MicroMonitorチップ | Nov 20, 1999 |
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