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W39L040Q-90B from WINBOND

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W39L040Q-90B

Manufacturer: WINBOND

512 K X 8 CMOS FLASH MEMORY

Partnumber Manufacturer Quantity Availability
W39L040Q-90B,W39L040Q90B WINBOND 1473 In Stock

Description and Introduction

512 K X 8 CMOS FLASH MEMORY The **WINBOND W39L040Q-90B** is a 512K x 8-bit CMOS flash memory device. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Organization:** 512K x 8-bit  
- **Operating Voltage:** 3.0V – 3.6V  
- **Access Time:** 90 ns  
- **Sector Structure:**  
  - Eight 64K-byte sectors  
- **Operating Temperature:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Package:** 32-pin PLCC or 32-pin TSOP  

### **Descriptions:**
- **Type:** 4M-bit (512KB) 3V-only flash memory  
- **Interface:** Parallel  
- **Architecture:** Uniform sector structure  
- **Endurance:** 100,000 program/erase cycles per sector  
- **Data Retention:** 20 years  

### **Features:**
- **Low Power Consumption:**  
  - Active Read Current: 15 mA (typical)  
  - Standby Current: 30 µA (typical)  
- **Hardware Data Protection:**  
  - VCC lockout for write protection  
  - Sector protection/unprotection via programming commands  
- **Software Command Set:**  
  - Compatible with JEDEC standards  
  - Supports in-system programming  
- **Reliability:**  
  - Built-in erase/program verification  
  - Embedded algorithms for flash operations  
- **Additional Functions:**  
  - Sector erase capability  
  - Chip erase function  
  - Reset (RST) pin for hardware initialization  

This device is designed for applications requiring non-volatile storage with fast read/write operations in embedded systems.

Application Scenarios & Design Considerations

512 K X 8 CMOS FLASH MEMORY

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