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W29C020P-90B from WINBOND

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W29C020P-90B

Manufacturer: WINBOND

256K X 8 CMOS FLASH MEMORY

Partnumber Manufacturer Quantity Availability
W29C020P-90B,W29C020P90B WINBOND 5120 In Stock

Description and Introduction

256K X 8 CMOS FLASH MEMORY The **W29C020P-90B** is a flash memory chip manufactured by **Winbond**. Here are its specifications, descriptions, and features:

### **Specifications:**
- **Memory Type:** Flash  
- **Memory Size:** 2 Mbit (256K x 8)  
- **Supply Voltage:** 5V  
- **Access Time:** 90 ns  
- **Operating Temperature:** Commercial (0°C to +70°C)  
- **Package Type:** 32-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**
- The **W29C020P-90B** is a **5V-only** flash memory device with a **byte-wide** (x8) organization.  
- It supports **in-system programming (ISP)** and **standard programming methods**.  
- The chip features **sector erase capability** (typically 4KB sectors) for flexible data management.  
- It is designed for **high-performance, low-power** applications.  

### **Features:**
- **Single 5V Power Supply** for read, program, and erase operations.  
- **Fast Access Time:** 90 ns.  
- **Low Power Consumption:**  
  - Active Read Current: 30 mA (typical)  
  - Standby Current: 100 µA (typical)  
- **Endurance:** 10,000 program/erase cycles per sector.  
- **Data Retention:** 10 years minimum.  
- **Hardware Data Protection:**  
  - VCC detection prevents program/erase during power transitions.  
  - Write protection via control pin.  
- **Compatible with JEDEC Standards** for easy system integration.  

This chip is commonly used in embedded systems, BIOS storage, and other applications requiring non-volatile memory.

Application Scenarios & Design Considerations

256K X 8 CMOS FLASH MEMORY

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