MAX1232：Microprocessor Monitor
Improved MAX1232 Cuts Power Consumption by 10X
The MAX1232 microprocessor (µP) supervisory circuit provides µP housekeeping and power-supply supervision functions while consuming only 1/10th the power of the DS1232. The MAX1232 enhances circuit reliability in µP systems by monitoring the power supply, monitoring the software execution, and providing a debounced manual reset input. The MAX1232 is a plug-in upgrade of the Dallas DS1232. A reset pulse of at least 250ms duration is supplied on power-up, power-down, and low-voltage brownout conditions (5% or 10% supply tolerances can be selected digitally). Also featured is a debounced manual reset input that forces the reset outputs to their active states for a minimum of 250ms. A digitally programmable watchdog timer monitors software execution and can be programmed for timeout settings of 150ms, 600ms, or 1.2s. The MAX1232 requires no external components.
Key Features
| MAX1232: Typical Operating Circuit Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1232 Data Sheet | MAX1232.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 | |||||||
| MAX1232 | 3.3 to 5.5 | Active High Active Low Open Drain | 85ms to 300ms | Input (WDI) | 1s to 2s <1s Adjustable | Manual Reset | 2.5 | 200 | CDIP(N)/8 LCC/20 PDIP(N)/8 SOIC(N)/8 SOIC(W)/16 | $1.77 @1k |
Quality and Environmental Data
Related Products
- MAX6358：Dual/Triple-Voltage µP Supervisory Circuits
- MAX6359：Dual/Triple-Voltage µP Supervisory Circuits
- MAX6360：Dual/Triple-Voltage µP Supervisory Circuits
- MAX6318：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6319：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6317：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6320：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6316：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6321：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
- MAX6322：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1232C/D | No Longer Available | DICE SALES,;NA pin;DICE; | 0°C to +70°C | See data sheet | |
| MAX1232CPA | No Longer Available | MAX1232CPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1232CPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CSA | No Longer Available | MAX1232CSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1232CSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CSA+G126 | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CSA+T | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CSA+TG126 | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CSA-T | No Longer Available | MAX1232CSA+T | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1232CWE | No Longer Available | MAX1232CWE+ | SOIC(W),;16 pin;111.8 mm² | 0°C to +70°C | No |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1232CWE+ | Active | SOIC(W),;16 pin;111.8 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CWE+T | Active | SOIC(W),;16 pin;111.8 mm² | 0°C to +70°C | Lead Free | |
| MAX1232CWE-T | No Longer Available | MAX1232CWE+T | SOIC(W),;16 pin;111.8 mm² | 0°C to +70°C | No |
| MAX1232EPA | No Longer Available | MAX1232EPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX1232EPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1232ESA | No Longer Available | MAX1232ESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1232ESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1232ESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1232ESA-T | No Longer Available | MAX1232ESA+T | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1232EWE | No Longer Available | MAX1232EWE+ | SOIC(W),;16 pin;111.8 mm² | -40°C to +85°C | No |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1232EWE+ | Active | SOIC(W),;16 pin;111.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1232EWE+T | Active | SOIC(W),;16 pin;111.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1232EWE-T | No Longer Available | MAX1232EWE+T | SOIC(W),;16 pin;111.8 mm² | -40°C to +85°C | No |
| MAX1232MJA | Active | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| MAX1232MJA/883B | Active | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| MAX1232MLP/883B | Active | LCC,;20 pin;82.6 mm² | -55°C to +125°C | No |
- MAX1232.pdf MAX1232
- MAX1232.pdf MAX1232
- MAX1232.pdf MAX1232
- MAX1232.pdf MAX1232
- MAX1232.pdf MAX1232
