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.
语言 | 下载文件 | 备注 |
---|---|---|
英文 | DS1832.pdf | Rev 1; 11/1999 |
Part Number | Reset Thresh. (V) | Reset Out | tRESET | Watchdog Feature | Watchdog Timeout | Supervisor Features | Reset Thresh. Accur. (%) | ICC (µA) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|---|---|---|
min | @ +25°C | max | See Notes | |||||||
DS1832 | 2.5 to 3.3 |
| 85ms to 300ms | No Watchdog |
| Manual Reset | 2.5 | 35 |
| $1.26 @1k |
型号 | 注 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
---|---|---|---|---|---|---|
DS1832 | 停止供货 | DS1832+ | PDIP(N),;8引脚;79.7mm² | -40°C至+85°C | RoHS/无铅:否 | |
DS1832+ | 生产中 | PDIP(N),;8引脚;79.7mm² | -40°C至+85°C | RoHS/无铅:无铅 | ||
DS1832S | 停止供货 | DS1832S+ | SOIC(N),;8引脚;30.9mm² | -40°C至+85°C | RoHS/无铅:否 | |
DS1832S+ | 生产中 | SOIC(N),;8引脚;30.9mm² | -40°C至+85°C | RoHS/无铅:无铅 | ||
DS1832S+T&R | 3.3V,2500/盘 | 生产中 | SOIC(N),;8引脚;30.9mm² | -40°C至+85°C | RoHS/无铅:无铅 | |
DS1832S/T&R | 3.3V,2500/盘 | 停止供货 | DS1832S/T&R+C05 | SOIC(N),;8引脚;30.9mm² | -40°C至+85°C | RoHS/无铅:否 |
DS1832U | 停止供货 | DS1832U+ | µMAX,;8引脚;15.6mm² | -40°C至+85°C | RoHS/无铅:否 | |
DS1832U+ | 生产中 | µMAX,;8引脚;15.6mm² | -40°C至+85°C | RoHS/无铅:无铅 | ||
DS1832U+T&R | 3.3V,3000/盘 | 生产中 | µMAX,;8引脚;15.6mm² | -40°C至+85°C | RoHS/无铅:无铅 | |
DS1832U/T&R | 3.3V,3000/盘 | 停止供货 | DS1832U+T&R | µMAX,;8引脚;15.6mm² | -40°C至+85°C | RoHS/无铅:否 |