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M29F400BB-45M6 from ST,ST Microelectronics

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M29F400BB-45M6

Manufacturer: ST

4 Mbit 512Kb x8 or 256Kb x16, Boot Block Single Supply Flash Memory

Partnumber Manufacturer Quantity Availability
M29F400BB-45M6,M29F400BB45M6 ST 6100 In Stock

Description and Introduction

4 Mbit 512Kb x8 or 256Kb x16, Boot Block Single Supply Flash Memory The **M29F400BB-45M6** is a **4 Mbit (512Kb x8 or 256Kb x16) Boot Block Flash Memory** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Density:** 4 Mbit (512Kb x8 or 256Kb x16)  
- **Access Time:** 45 ns  
- **Supply Voltage:** 5V ± 10%  
- **Organization:**  
  - **x8 mode:** 512K × 8 bits  
  - **x16 mode:** 256K × 16 bits  
- **Package:** TSOP-48 (M6)  
- **Technology:** CMOS floating gate  
- **Sector Architecture:** Boot Block (Top or Bottom configuration)  
  - **Top Boot:** One 16Kb, two 8Kb, one 32Kb, and seven 64Kb sectors  
  - **Bottom Boot:** Seven 64Kb, one 32Kb, two 8Kb, and one 16Kb sectors  
- **Endurance:** 100,000 write/erase cycles per sector  
- **Data Retention:** 20 years  

### **Features:**  
- **Single Voltage Operation:** 5V for read, program, and erase  
- **Command User Interface (CUI):** JEDEC-compatible  
- **Sector Protection:** Hardware and software options  
- **Low Power Consumption:**  
  - Active current: 25 mA (typical)  
  - Standby current: 5 µA (typical)  
- **Fast Programming:** Byte/Word programming in 20 µs (typical)  
- **Fast Erase:** Sector erase in 0.7s (typical)  
- **Hardware Reset (RESET# Pin):** Resets device to read mode  
- **Embedded Algorithms:** Automatic program and erase  
- **Compatibility:** Fully backward-compatible with earlier M29F400 devices  

This flash memory is commonly used in embedded systems, automotive, and industrial applications requiring reliable non-volatile storage.

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