4GHz, 1:4 LVPECL Fanout Buffer/Translator with Internal Termination Precision Edge? The SY58021UMG is a high-speed differential receiver manufactured by **ＭＩＣＲＥＬ**.  

### **Key Specifications:**  
- **Function:** Differential Receiver  
- **Input Type:** Differential (LVPECL, CML, LVDS compatible)  
- **Output Type:** Single-ended CMOS  
- **Supply Voltage:** 3.3V  
- **Propagation Delay:** Typically 1.5 ns  
- **Maximum Data Rate:** Up to 3.2 Gbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC  

### **Features:**  
- High-speed signal detection and conversion  
- Low jitter performance  
- Wide input common-mode range  
- Compatible with multiple differential signaling standards  
- Industrial temperature range support  

For detailed electrical characteristics and application notes, refer to the official **ＭＩＣＲＥＬ** datasheet.

4GHz, 1:4 LVPECL Fanout Buffer/Translator with Internal Termination Precision Edge? The part **SY58021UMG** is manufactured by **MICREL**.  

### **Specifications:**  
- **Type:** High-Speed Differential Receiver  
- **Supply Voltage (VCC):** 3.3V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Type:** Differential  
- **Output Type:** LVCMOS/LVTTL  
- **Propagation Delay:** Typically 1.5ns  
- **Data Rate:** Up to 3.2Gbps  
- **Package:** 8-pin MSOP  

### **Descriptions:**  
The SY58021UMG is a high-speed differential receiver designed for low-voltage applications. It converts differential signals to single-ended LVCMOS/LVTTL outputs, making it suitable for high-speed data transmission in communication systems.  

### **Features:**  
- **High-Speed Operation:** Supports data rates up to 3.2Gbps.  
- **Low Propagation Delay:** Ensures fast signal processing.  
- **Wide Input Common-Mode Range:** Compatible with various differential signal levels.  
- **3.3V Power Supply:** Optimized for low-voltage applications.  
- **Small Footprint:** 8-pin MSOP package for space-constrained designs.  
- **Industrial Temperature Range:** Operates reliably from -40°C to +85°C.  

This information is based solely on the provided knowledge base.