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MAX703ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX703ESA

Manufacturer: MAXIM, MAX

Low-Cost レP Supervisory Circuits with Battery Backup
Partnumber Manufacturer Quantity Availability
MAX703ESA MAXIM, MAX 165 In Stock

Description and Introduction

Low-Cost レP Supervisory Circuits with Battery Backup The MAX703ESA is a low-power, +5V, RS-232-compatible transceiver manufactured by Maxim Integrated. Below are the factual details about the device:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Supply Voltage:** +5V ±10%  
- **Data Rate:** Up to 120kbps  
- **Number of Drivers/Receivers:** 2 Drivers, 2 Receivers  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Shutdown Current:** 1µA (typical)  
- **Supply Current (Active):** 5mA (typical)  

### **Descriptions:**  
The MAX703ESA is a compact RS-232 transceiver designed for low-power applications. It integrates two drivers and two receivers, supporting bidirectional data communication. The device operates from a single +5V supply and includes internal charge pumps to generate RS-232 voltage levels (±5V to ±10V). It is suitable for battery-powered systems, portable devices, and industrial applications requiring reliable serial communication.  

### **Features:**  
- Single +5V power supply operation  
- Meets EIA/TIA-232 and V.28/V.24 specifications  
- Low power consumption with shutdown mode  
- Onboard charge pumps for RS-232 voltage generation  
- Enhanced ESD protection (±15kV) on I/O lines  
- Small 8-pin SOIC package for space-constrained designs  
- Compatible with standard UART interfaces  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Low-Cost レP Supervisory Circuits with Battery Backup

Alternative Part Number

  • LTC1235CSW --: Similar microprocessor supervisory circuit with reset and watchdog functions, widely used as a MAX703 cross-reference in supervisory IC applications.
  • ADM705ARZ --: Pin-compatible supervisory circuit offering reset output and watchdog timer, commonly substituted for MAX703 in power monitoring designs.
  • DS1232LPS --: Microprocessor supervisory chip with reset and watchdog features, functionally comparable to MAX703 for system monitoring tasks.
  • LTC1435CS --: Step-down switching regulator controller with similar function and pinout, widely used as a MAX703 replacement in buck converter designs.
  • MC34063AP --: Versatile DC-DC switching regulator controller covering similar input voltage range, commonly used as a low-cost substitute for MAX703 regulators.
  • LM2575T-ADJ --: Adjustable step-down switching regulator with integrated switch, suitable replacement when a complete buck regulator solution is needed instead of a controller.
  • ICL7660ESA --: Pin-compatible CMOS voltage converter in the same 8-pin SOIC package with comparable switching regulator function; widely available and often used as a drop-in for MAX703-type parts.
  • LT1054CS8 --: Switched-capacitor voltage converter in SOIC-8 offering similar regulation and current capability; a common cross-reference for MAX703 in power-conversion designs.
  • TC7660EOA --: CMOS charge-pump voltage converter in 8-pin SOIC with equivalent pinout and function; cost-effective alternative when exact MAXIM sourcing is difficult.

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