DS1832：3.3 Volt MicroMonitor Chip
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.
Key Features
| DS1832: Block Diagram |
DataSheet
| title | Download file |
|---|---|
| DS1832 Data Sheet | DS1832.pdf |
Parametrics
| 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 | Active High Active Low Push-Pull | 85ms to 300ms | No Watchdog | 1s to 2s <1s | Manual Reset | 2.5 | 35 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $1.26 @1k |
Quality and Environmental Data
Ordering Information
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|---|
| DS1832 | No Longer Available | DS1832+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No | |
| DS1832+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | ||
| DS1832S | No Longer Available | DS1832S+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No | |
| DS1832S+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | ||
| DS1832S+T&R | 3.3V 2500/Reel | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| DS1832S/T&R | 3.3V 2500/Reel | No Longer Available | DS1832S/T&R+C05 | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| DS1832U | No Longer Available | DS1832U+ | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No | |
| DS1832U+ | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | ||
| DS1832U+T&R | 3.3V 3000/Reel | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | |
| DS1832U/T&R | 3.3V 3000/Reel | No Longer Available | DS1832U+T&R | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No |
- DS1832.pdf DS1832
- DS1832.pdf DS1832
- DS1832.pdf DS1832
- DS1832.pdf DS1832
- 原理框图 DS1832
