DS1707：3.3 and 5.0 Volt MicroMonitor
The DS1707/DS1708 3.3- or 5.0-Volt MicroMonitor monitors three vital conditions for a microprocessor: power supply, voltage sense, and external override. A precision temperature-compensated reference and comparator circuit monitor the status of VCC at the device and at an upstream point for maximum protection. When the sense input detects an out-of-tolerance condition a non-maskable interrupt is generated. As the voltage at the device degrades an internal power fail signal is generated which forces the reset to an active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for a minimum of 130ms to allow the power supply and processor to stabilize.
Key Features
| DS1707, DS1708: Block Diagram |
DataSheet
| title | Download file |
|---|---|
| DS1707-DS1708 Data Sheet | DS1707-DS1708.pdf |
Parametrics
| Part Number | Reset Thresh. (V) | Reset Out | tRESET | Watchdog Feature | Supervisor Features | Reset Thresh. Accur. (%) | ICC (µA) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|
| min | @ +25°C | max | See Notes | ||||||
| DS1707 | 3.3 to 5.5 | Active High Active Low Push-Pull | 85ms to 300ms | No Watchdog | Adjustable Reset Input Manual Reset Power Fail Comparator/Low Battery Detect | 2.5 | 60 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $2.01 @1k |
| DS1708 | 3.3 to 5.5 | 60 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $1.82 @1k | |||||
| DS1708R | 2.5 to 3.3 | 50 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $2.92 @1k | |||||
| DS1708S | 2.5 to 3.3 | 50 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $3.90 @1k | |||||
| DS1708T | 2.5 to 3.3 | 50 | µMAX/8 PDIP(N)/8 SOIC(N)/8 | $3.90 @1k | |||||
Quality and Environmental Data
Ordering Information
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|---|
| DS1707EPA | 5V-5% Monitor | No Longer Available | DS1707EPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| DS1707EPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | ||
| DS1707ESA | 5V-5% Monitor | No Longer Available | DS1707ESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| DS1707ESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | ||
| DS1707ESA+T&R | 5V-5% | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| DS1707ESA/T&R | 5V-5% | No Longer Available | DS1707ESA+T&R | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| DS1707EUA | 5V-5% Monitor | No Longer Available | DS1707EUA+ | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No |
| DS1707EUA+ | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | ||
| DS1707EUA+T&R | 5V-5% | Active | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | Lead Free | |
| DS1707EUA/T&R | 5V-5% | No Longer Available | DS1707EUA+T&R | µMAX,;8 pin;15.6 mm² | -40°C to +85°C | No |
- DS1707-DS1708.pdf DS1708
