155 Mbps ATM SAR Controller With ABR Support for PCI-based Networking Applications The part **IDT77252L155PG** is a high-performance **155 Mbps ATM Transceiver** manufactured by **Integrated Device Technology (IDT)**.  

### **Specifications:**  
- **Type:** ATM Transceiver  
- **Data Rate:** 155 Mbps (OC-3/STM-1 compliant)  
- **Interface:** UTOPIA Level 2 (8-bit or 16-bit)  
- **Supply Voltage:** 3.3V  
- **Package:** 208-pin PQFP (Plastic Quad Flat Pack)  
- **Operating Temperature:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Compliance:** Meets ATM Forum UNI 3.1/4.0 specifications  

### **Descriptions & Features:**  
- Supports **cell delineation, HEC generation/checking**, and **payload scrambling/descrambling**  
- **UTOPIA Level 2 Master/Slave** interface for ATM layer communication  
- **Programmable cell FIFO** for efficient data buffering  
- **Built-in statistics counters** for performance monitoring  
- **Low-power CMOS technology** for reduced power consumption  
- **Jitter tolerance** compliant with ITU-T G.958 and Bellcore GR-253-CORE  
- **Loopback modes** for diagnostics and testing  

This device is commonly used in **ATM switches, routers, and broadband networking equipment** for high-speed data transmission.  

Would you like additional details on pin configurations or application notes?

155 Mbps ATM SAR Controller With ABR Support for PCI-based Networking Applications

155 Mbps ATM SAR Controller With ABR Support for PCI-based Networking Applications The **IDT77252L155PG** is a high-performance **Integrated Digital Termination (IDT)** device designed for telecommunications applications. Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
- **Integrated Device Technology (IDT)**  

### **Key Specifications:**  
- **Part Number:** IDT77252L155PG  
- **Type:** Digital termination device  
- **Technology:** CMOS  
- **Supply Voltage:** Typically operates at **5V**  
- **Package:** **155-pin PGA (Pin Grid Array)**  
- **Operating Temperature Range:** Industrial-grade (typically **-40°C to +85°C**)  

### **Descriptions & Features:**  
- Designed for **high-speed digital signal processing** in telecom systems.  
- Supports **T1/E1 and other digital line termination** applications.  
- Includes **on-chip filtering and signal conditioning** for improved signal integrity.  
- **Low power consumption** for energy-efficient operation.  
- **High reliability** with industrial-grade temperature tolerance.  
- **CMOS technology** ensures low noise and high-speed performance.  

This device is commonly used in **telecommunication infrastructure, digital cross-connects, and network interface units**.  

(Note: If additional specifications or datasheet details are required, consult the official IDT documentation.)

155 Mbps ATM SAR Controller With ABR Support for PCI-based Networking Applications