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K4D261638E-TC40 from SAMG

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K4D261638E-TC40

Manufacturer: SAMG, 8X16

2M x 16Bit x 4 Banks Double Data Rate Synchronous DRAM

Partnumber Manufacturer Quantity Availability
K4D261638E-TC40,K4D261638ETC40 SAMG, 8X16 28 In Stock

Description and Introduction

2M x 16Bit x 4 Banks Double Data Rate Synchronous DRAM The **K4D261638E-TC40** is a memory component, specifically a **256Mb (16Mx16) DDR SDRAM** manufactured by **Samsung**.  

### **Specifications:**  
- **Part Number:** K4D261638E-TC40  
- **Memory Type:** DDR SDRAM  
- **Density:** 256Mb (16Mx16)  
- **Organization:** 16M words × 16 bits  
- **Voltage:** 2.5V ± 0.2V  
- **Speed:** **TC40** (5ns cycle time, 200MHz clock frequency)  
- **Package:** 66-pin TSOP-II  
- **Refresh:** 8K cycles / 64ms  
- **CAS Latency (CL):** 2, 2.5  
- **Burst Length:** 2, 4, 8  
- **Operating Temperature:** Commercial (0°C to +70°C)  

### **Features:**  
- **Double Data Rate (DDR) architecture**  
- **Bidirectional data strobe (DQS)**  
- **Differential clock inputs (CK, /CK)**  
- **Programmable burst lengths (2, 4, 8)**  
- **Auto refresh and self refresh modes**  
- **Internal pipelined operation**  
- **4 internal banks for concurrent operation**  

This memory chip is commonly used in **consumer electronics, networking devices, and embedded systems** requiring DDR SDRAM.  

Would you like additional technical details?

Application Scenarios & Design Considerations

2M x 16Bit x 4 Banks Double Data Rate Synchronous DRAM

Alternative Part Number

  • MT47H128M16RT-25E --: DDR2 SDRAM in the same 128M x16 density class with comparable speed grade; widely available and pin-compatible in FBGA, suitable as a functional substitute.
  • W972GG6KB-25 --: DDR2 1Gb x16 SDRAM offering similar density and speed, from a major memory vendor, usable as a drop-in alternative with minor timing review.
  • IS43DR16160B-3DBL --: DDR2 256Mb x16 SDRAM with comparable organization and speed grade; a cost-effective alternative from an established memory supplier.

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