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W29C020CT70B from WINBOND

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W29C020CT70B

Manufacturer: WINBOND

256K X 8 CMOS FLASH MEMORY

Partnumber Manufacturer Quantity Availability
W29C020CT70B WINBOND 2000 In Stock

Description and Introduction

256K X 8 CMOS FLASH MEMORY The W29C020CT70B is a 2M-bit (256K x 8) CMOS flash memory manufactured by Winbond. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Memory Size:** 2M-bit (256K x 8)  
- **Supply Voltage:** 5V ± 10%  
- **Access Time:** 70ns  
- **Operating Current:** 30mA (typical)  
- **Standby Current:** 100µA (typical)  
- **Endurance:** 100,000 program/erase cycles  
- **Data Retention:** 10 years  

### **Descriptions:**
- The W29C020CT70B is a 5V-only flash memory with a uniform 4KB sector architecture.  
- It supports both byte programming and sector erase operations.  
- Compatible with JEDEC standard commands for easy integration.  

### **Features:**
- **Sector Architecture:** 4KB uniform sectors (total of 64 sectors).  
- **Command Set Compatibility:** JEDEC-standard commands for read, program, and erase.  
- **Automatic Programming & Erase:** Built-in algorithms for simplified operation.  
- **Hardware Data Protection:** Prevents accidental writes during power transitions.  
- **Toggle Bit & Data Polling:** Status detection for program/erase completion.  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **Package Options:** Available in 32-pin PLCC, TSOP, and PDIP packages.  

This device is commonly used in embedded systems, BIOS storage, and firmware applications.

Application Scenarios & Design Considerations

256K X 8 CMOS FLASH MEMORY

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