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HYB514265BJ-40 from SIEMENS

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HYB514265BJ-40

Manufacturer: SIEMENS

256K x 16-Bit EDO-Dynamic RAM

Partnumber Manufacturer Quantity Availability
HYB514265BJ-40,HYB514265BJ40 SIEMENS 1010 In Stock

Description and Introduction

256K x 16-Bit EDO-Dynamic RAM The HYB514265BJ-40 is a DRAM (Dynamic Random Access Memory) chip manufactured by SIEMENS. Below are the specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** SIEMENS  
- **Part Number:** HYB514265BJ-40  
- **Type:** DRAM (Dynamic RAM)  
- **Density:** 4Mbit (1M x 4-bit)  
- **Speed:** 40ns (access time)  
- **Voltage:** 5V (standard operating voltage)  
- **Package:** Typically comes in a **SOJ (Small Outline J-Lead)** or similar surface-mount package.  
- **Organization:** 1,048,576 words × 4 bits  
- **Refresh Cycles:** Requires periodic refresh (standard for DRAM technology).  

### **Descriptions & Features:**  
- Designed for high-speed memory applications in computing and embedded systems.  
- Compatible with industry-standard DRAM interfaces.  
- Used in older computer systems, industrial controls, and telecommunications equipment.  
- Requires external refresh circuitry to maintain data integrity.  
- Operates at a standard 5V power supply, typical for DRAMs of its era.  

This chip was commonly used in systems during the 1990s and is now considered obsolete for modern applications.

Application Scenarios & Design Considerations

256K x 16-Bit EDO-Dynamic RAM

Alternative Part Number

  • AS4C256K16F-40JC --: 256K x 16 fast asynchronous SRAM with 40 ns access time, functionally equivalent to the HYB514265BJ-40 and available as a drop-in replacement.
  • IS61LV25616-45T --: 256K x 16 low-voltage asynchronous SRAM in a similar package; 45 ns speed grade is close to the original 40 ns and is widely used as a substitute.
  • CY7C1041CV33-10ZXC --: 256K x 16 asynchronous SRAM with compatible organization and pinout; a common second-source option when the original Siemens part is unavailable.

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