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MAX809TD from PHILIPS

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MAX809TD

Manufacturer: PHILIPS, PHI

3-pin microprocessor resets

Partnumber Manufacturer Quantity Availability
MAX809TD PHILIPS, PHI 27632 In Stock

Description and Introduction

3-pin microprocessor resets The MAX809TD is a microprocessor reset circuit manufactured by Philips (now NXP Semiconductors). Below are the factual specifications, descriptions, and features:  

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Multiple fixed voltage options (e.g., 2.63V, 3.08V, 4.38V, etc.)  
- **Reset Timeout Period:** 140ms (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Type:** Active-low, open-drain or push-pull  
- **Quiescent Current:** 6µA (typical)  

### **Descriptions:**  
- The MAX809TD is a low-power voltage monitor designed to provide a reset signal to microprocessors or other digital systems during power-up, power-down, or brownout conditions.  
- It ensures reliable system operation by holding the microprocessor in reset until the supply voltage stabilizes.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures accurate reset signal generation.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Small Package Options:** Available in SOT-23 and other compact packages.  
- **Manual Reset Capability (if applicable):** Some variants include a manual reset input.  
- **Wide Operating Voltage Range:** Suitable for various logic levels.  

For exact threshold voltages and package details, refer to the official datasheet from NXP (formerly Philips).

Application Scenarios & Design Considerations

3-pin microprocessor resets

Alternative Part Number

  • MCP130T-315DI/TO --: Supervisory/reset IC with similar reset threshold and active-low push-pull output, functionally equivalent to the MAX809T.
  • TPS3809L30DBVR --: Low-power voltage supervisor with comparable reset threshold and active-low reset output, suitable drop-in functional replacement.
  • APX803S-31SA-7 --: 3-pin microprocessor reset supervisor with similar threshold and active-low output, widely available alternative.
  • ADM809TARTZ-REEL --: Pin-compatible supervisor IC with the same T-threshold reset function and active-low reset output, widely available and a direct functional drop-in.
  • MCP809T-315DI/TO --: Low-cost voltage supervisor with matching reset threshold and active-low push-pull output, suitable replacement in most reset circuits.
  • TL7705ACDR --: General-purpose supply voltage supervisor with adjustable threshold and reset output, usable as a substitute when minor threshold adjustment is acceptable.

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