DS1233A：3.3V EconoReset
The DS1233A EconoReset monitors two vital conditions for a microprocessor: power supply and external override. A precision temperature-compensated reference and comparator circuit are used to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 350ms to allow the power supply and processor to stabilize. The second function of the DS1233A is pushbutton reset control. The DS1233A debounces a pushbutton closure and will generate a 350ms reset pulse upon release.
Key Features
| DS1233A: Block Diagram |
DataSheet
| title | Download file |
|---|---|
| DS1233A Data Sheet | DS1233A.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 | ||||||
| DS1233A | 2.5 to 3.3 | Active Low Open Drain With Internal Pull-Up | 85ms to 300ms | No Watchdog | Manual Reset | 2.5 | 50 | SOT-223/3 TO92/3 | $0.69 @1k |
Ordering Information
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|---|
| DS1233A-10 | 3.3V-10% Monitor | No Longer Available | DS1233A-10+ | TO92,;3 pin;19.5 mm² | -40°C to +85°C | No |
| DS1233A-10+ | Active | TO92,;3 pin;19.5 mm² | -40°C to +85°C | Lead Free | ||
| DS1233A-10+T&R | 3.3V-10% 2000/Reel | Active | TO92,;3 pin;27.6 mm² | -40°C to +85°C | Lead Free | |
| DS1233A-10/T&R | 3.3V-10% 2000/Reel | No Longer Available | DS1233A-10+T&R | TO92,;3 pin;27.6 mm² | -40°C to +85°C | No |
| DS1233A-15 | 3.3V-15% Monitor | No Longer Available | DS1233A-15+ | TO92,;3 pin;19.5 mm² | -40°C to +85°C | No |
| DS1233A-15+ | Active | TO92,;3 pin;19.5 mm² | -40°C to +85°C | Lead Free | ||
| DS1233A-15+T&R | 3.3V-15% 2000/Reel | Active | TO92,;3 pin;27.6 mm² | -40°C to +85°C | Lead Free | |
| DS1233A-15/T&R | 3.3V-15% 2000/Reel | No Longer Available | DS1233A-15+T&R | TO92,;3 pin;27.6 mm² | -40°C to +85°C | No |
| DS1233AZ-10 | 3.3V-10% Monitor | No Longer Available | DS1233AZ-10+ | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | No |
| DS1233AZ-10+ | Active | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | Lead Free | ||
| Part Number | Notes | Status | Recommended Replacement | Package | Temp | RoHS |
| DS1233AZ-10+T&R | 3.3V-10% 2500/Reel | Active | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | Lead Free | |
| DS1233AZ-10/T&R | 3.3V-10%, 2500/Reel | No Longer Available | DS1233AZ-10+T&R | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | No |
| DS1233AZ-10/TR+C19 | Active | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | Lead Free | ||
| DS1233AZ-15 | 3.3V-15% Monitor | No Longer Available | DS1233AZ-15+ | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | No |
| DS1233AZ-15+ | Active | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | Lead Free | ||
| DS1233AZ-15+T&R | 3.3V-15% 2500/Reel | Active | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | Lead Free | |
| DS1233AZ-15/T&R | 3.3V-15% 2500/Reel | No Longer Available | DS1233AZ-15+T&R | SOT-223,;3 pin;48.9 mm² | -40°C to +85°C | No |
- DS1233A.pdf DS1233A
- 原理框图 DS1233A
