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MAX688CUA-T from MAXIM,MAXIM - Dallas Semiconductor

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MAX688CUA-T

Manufacturer: MAXIM, MAX

High-Accuracy, Low-Dropout Linear Regulators

Partnumber Manufacturer Quantity Availability
MAX688CUA-T,MAX688CUAT MAXIM, MAX 17500 In Stock

Description and Introduction

High-Accuracy, Low-Dropout Linear Regulators The MAX688CUA-T is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Package:** 8-pin μMAX  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (1.575V, 2.32V, 2.93V, 3.08V, 4.38V, 4.63V)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 9μA (typ)  
- **Manual Reset Input:** Yes (active-low)  
- **Watchdog Timer:** Yes (1.6s timeout)  
- **Power-Fail Comparator:** No  

### **Descriptions:**
The MAX688CUA-T is a low-power microprocessor supervisory circuit designed to monitor system voltage and provide a reset signal to the μP during power-up, power-down, or brownout conditions. It includes a watchdog timer and manual reset input for additional system reliability.  

### **Features:**
- **Low Power Consumption:** 9μA typical supply current  
- **Adjustable or Fixed Reset Thresholds:** Multiple preset voltage options  
- **Manual Reset Input:** Allows external reset triggering  
- **Watchdog Timer:** Monitors µP activity; resets if software fails  
- **Small Package:** 8-pin μMAX for space-constrained applications  
- **Wide Operating Voltage Range:** 1.2V to 5.5V  
- **Guaranteed Reset Output Valid Down to VCC = 1V**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High-Accuracy, Low-Dropout Linear Regulators

Alternative Part Number

  • LTC1236CS8 --: Similar low-power supervisory/reset function in an 8-pin SOIC package, from a different series and manufacturer, suitable as a functional substitute.
  • ADM8691ARZ --: Comparable microprocessor supervisory circuit with reset and watchdog features, different naming and vendor, good drop-in candidate after pinout verification.
  • TL7705ACD --: Widely available supply-voltage supervisor with reset output, different series and manufacturer, usable alternative when exact timing and thresholds are adjusted.
  • LTC1235CSW --: Similar supervisory/monitoring function with comparable supply voltage range; widely available and pin-compatible in many designs.
  • ADM8691ARW --: Alternative supervisory IC offering reset and watchdog functions suitable as a functional replacement.
  • TL7705ACP --: Low-cost voltage supervisor with reset output; usable substitute when exact timing and threshold tolerances are acceptable.

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