3.0V/3.3V Microprocessor Supervisory Circuits The **MAX704RCSA+** is a **315MHz/433MHz ASK/FSK Superheterodyne Receiver** manufactured by **Maxim Integrated (now part of Analog Devices)**.  

### **Key Specifications:**  
- **Frequency Range:** 315MHz or 433MHz (selectable)  
- **Modulation:** ASK (Amplitude Shift Keying) / FSK (Frequency Shift Keying)  
- **Supply Voltage:** 4.5V to 5.5V  
- **Current Consumption:** 5.5mA (typical)  
- **Sensitivity:** -114dBm (for ASK, 315MHz, 2.4kbps)  
- **Data Rate:** Up to 100kbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC  

### **Features:**  
- **Superheterodyne Architecture** for improved sensitivity and selectivity  
- **Low Power Consumption** (5.5mA typical)  
- **Integrated IF Filter** for noise reduction  
- **RSSI (Received Signal Strength Indicator)** output  
- **Wide Supply Voltage Range** (4.5V to 5.5V)  
- **Small Footprint** (8-pin SOIC package)  

### **Applications:**  
- **Remote Keyless Entry (RKE) Systems**  
- **Home Automation**  
- **Wireless Sensors**  
- **Industrial Controls**  

This device is designed for **low-power wireless communication** in **315MHz/433MHz ISM bands** with **high sensitivity** and **reliable performance**.

3.0V/3.3V Microprocessor Supervisory Circuits