3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.625V. Active-low reset. Manual reset input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV The MAX704R-ESA is a low-power, high-performance, +3V, 300MHz to 450MHz ASK/FSK transmitter manufactured by Maxim Integrated.  

### **Key Specifications:**  
- **Frequency Range:** 300MHz to 450MHz  
- **Modulation:** ASK (Amplitude Shift Keying) / FSK (Frequency Shift Keying)  
- **Supply Voltage:** +2.1V to +3.6V  
- **Output Power:** Adjustable up to +10dBm  
- **Current Consumption:**  
  - 5.5mA (standby)  
  - 7.3mA (transmit at +10dBm)  
- **Data Rate:** Up to 100kbps  
- **Package:** 8-pin SOIC (ESA)  

### **Features:**  
- Low power consumption for battery-operated applications  
- On-chip PLL (Phase-Locked Loop) with integrated VCO (Voltage-Controlled Oscillator)  
- Adjustable output power for range optimization  
- Supports both ASK and FSK modulation  
- Small form factor (SOIC-8 package)  
- Operates over industrial temperature range (-40°C to +85°C)  

### **Applications:**  
- Remote keyless entry (RKE)  
- Wireless sensors  
- Home automation  
- Industrial telemetry  

This device is designed for reliable, low-power RF communication in short-range wireless applications.

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.625V. Active-low reset. Manual reset input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV