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W29C040- from WINBOND

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W29C040-

Manufacturer: WINBOND

512K X 8 CMOS FLASH MEMORY

Partnumber Manufacturer Quantity Availability
W29C040-,W29C040 WINBOND 100 In Stock

Description and Introduction

512K X 8 CMOS FLASH MEMORY The W29C040 is a 512K x 8-bit CMOS flash memory manufactured by Winbond. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Organization:** 512K x 8 bits  
- **Operating Voltage:** 5V ± 10%  
- **Access Time:** 70ns, 90ns, 120ns  
- **Sector Architecture:**  
  - Uniform 4K-byte sectors (128 sectors total)  
- **Programming Time:**  
  - Byte programming: 10μs (typical)  
  - Chip erase: 10ms (typical)  
  - Sector erase: 10ms (typical)  
- **Endurance:**  
  - 100,000 program/erase cycles per sector  
- **Data Retention:** 10 years minimum  
- **Interface:** Parallel (8-bit data bus)  
- **Package Options:**  
  - 32-pin PDIP  
  - 32-pin PLCC  
  - 32-pin TSOP  

### **Descriptions:**  
- The W29C040 is a 5V-only flash memory with a uniform sector architecture, making it suitable for code and data storage.  
- It supports in-system programming and erase operations without requiring additional voltages.  
- The device features a command-driven interface for programming and erasing.  

### **Features:**  
- **Low Power Consumption:**  
  - Active current: 30mA (typical)  
  - Standby current: 100μA (typical)  
- **Hardware Data Protection:**  
  - VCC lockout for write protection  
  - Sector protection via software  
- **Software Commands:**  
  - Compatible with JEDEC standards  
  - Supports sector erase, chip erase, and byte programming  
- **Reliability:**  
  - Built-in error correction and bad block management  
  - High endurance and long data retention  

This information is based on Winbond's official documentation for the W29C040 flash memory.

Application Scenarios & Design Considerations

512K X 8 CMOS FLASH MEMORY

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