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IS42S16800E-75ET from ISSI

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IS42S16800E-75ET

Manufacturer: ISSI

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM

Partnumber Manufacturer Quantity Availability
IS42S16800E-75ET,IS42S16800E75ET ISSI 798 In Stock

Description and Introduction

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM The IS42S16800E-75ET is a 256Mb SDRAM manufactured by ISSI (Integrated Silicon Solution, Inc.). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Density:** 256Mb (16M words × 16 bits)  
- **Organization:** 4 banks × 4M words × 16 bits  
- **Voltage:** 3.3V ± 0.3V  
- **Speed:** 7.5ns (133MHz clock frequency)  
- **Access Time:** 5.4ns  
- **Refresh Cycles:** 4096 refresh cycles every 64ms  
- **Operating Temperature:** Commercial (0°C to +70°C)  

### **Descriptions:**
- **Type:** Synchronous DRAM (SDRAM)  
- **Interface:** Fully synchronous with a single 3.3V power supply  
- **Package:** 54-pin TSOP II (400mil width)  
- **Burst Length:** Programmable (1, 2, 4, 8, or full page)  
- **CAS Latency:** 2 or 3 (programmable)  

### **Features:**
- **Auto Refresh & Self Refresh:** Supports both modes for power efficiency.  
- **Burst Read/Write Operations:** Enhances data transfer efficiency.  
- **Programmable Burst Length & CAS Latency:** Provides flexibility in system design.  
- **Single 3.3V Power Supply:** Simplifies power management.  
- **Compliant with JEDEC Standards:** Ensures industry compatibility.  

This SDRAM is commonly used in networking, telecommunications, and embedded systems requiring high-speed memory.

Application Scenarios & Design Considerations

16M x 8, 8M x16 128Mb SYNCHRONOUS DRAM

Alternative Part Number

  • MT48LC8M16A2P-75 --: Same 128Mb SDR SDRAM density and 8M x 16 organization with 7.5ns speed grade, widely available and pin-compatible with the IS42S16800E.
  • W9864G6JH-7 --: Equivalent 128Mb SDR SDRAM in 8M x 16 configuration with 7.5ns access time, a common drop-in alternative for ISSI SDRAM parts.
  • AS4C8M16SA-7TCN --: 128Mb SDR SDRAM organized as 8M x 16 with 7.5ns speed grade, specifically marketed as a replacement for legacy ISSI SDRAM devices.

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