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IS42S32400A-7T from ISSI

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IS42S32400A-7T

Manufacturer: ISSI, ISSI.

16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM

Partnumber Manufacturer Quantity Availability
IS42S32400A-7T,IS42S32400A7T ISSI, ISSI. 278 In Stock

Description and Introduction

16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM The **IS42S32400A-7T** is a **32Mbit (4M x 8-bit) Synchronous DRAM (SDRAM)** manufactured by **Integrated Silicon Solution Inc. (ISSI)**.  

### **Key Specifications:**  
- **Density:** 32Mbit (4M words × 8 bits)  
- **Organization:** 4,194,304 words × 8 bits  
- **Voltage Supply:** 3.3V (±0.3V)  
- **Speed Grade:** **-7T** (7ns access time, 143MHz operating frequency)  
- **Package:** **TSOP II (54-pin)**  
- **Refresh Cycles:** 4,096 refresh cycles every 64ms  
- **Burst Lengths:** 1, 2, 4, 8, and full page  
- **CAS Latency (CL):** 2 and 3  
- **Interface:** Fully synchronous with all signals registered on the positive edge of the clock  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  

### **Features:**  
- **Auto Refresh (CBR) and Self Refresh** modes  
- **Programmable Burst Length** (1, 2, 4, 8, or full page)  
- **Sequential or Interleaved Burst Mode**  
- **Single 3.3V ±0.3V Power Supply**  
- **LVTTL-Compatible Inputs and Outputs**  
- **Four Internal Banks for Concurrent Operation**  
- **JEDEC Standard Compliant**  

This SDRAM is commonly used in **networking, telecommunications, embedded systems, and consumer electronics** where high-speed, low-power memory is required.  

Would you like additional details on timing parameters or pin configurations?

Application Scenarios & Design Considerations

16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM

Alternative Part Number

  • MT48LC4M32B2P-7 --: Same 128Mb SDR SDRAM organization (4M x 32) with 7ns speed grade and 3.3V supply, a widely available drop-in equivalent from a major DRAM vendor.
  • W9825G6JH-6 --: 128Mb SDR SDRAM in 4M x 32 configuration with compatible 3.3V interface and TSOP package; 6ns grade is faster than 7ns so timing requirements are met.
  • AS4C4M32S-7TCN --: Alliance Memory specializes in legacy SDR SDRAM replacements; this 4M x 32 128Mb device matches the IS42S32400A organization and 7ns speed grade.

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