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M28W640FSB70ZA6 from ST,ST Microelectronics

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M28W640FSB70ZA6

Manufacturer: ST

32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Boot Block, Secure Flash Memories

Partnumber Manufacturer Quantity Availability
M28W640FSB70ZA6 ST 225 In Stock

Description and Introduction

32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Boot Block, Secure Flash Memories The **M28W640FSB70ZA6** is a **64 Mbit (8 Mbit x8) Flash memory** manufactured by **STMicroelectronics (ST)**. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Density:** 64 Mbit (8 Mbit x8)  
- **Organization:** 8,388,608 words × 8 bits  
- **Supply Voltage:**  
  - **VCC (Core):** 2.7V to 3.6V  
  - **VCCQ (I/O):** 1.65V to 3.6V  
- **Access Time:** 70 ns  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 48-ball TFBGA (6x8 mm)  

### **Descriptions:**  
- **Type:** NOR Flash memory  
- **Interface:** Asynchronous  
- **Sector Architecture:**  
  - **Uniform Sector Size:** 128 Kbytes  
  - **Total Sectors:** 512  
- **Endurance:** 100,000 write/erase cycles per sector  
- **Data Retention:** 20 years  

### **Features:**  
- **Low Power Consumption:**  
  - **Active Read Current:** 15 mA (typical)  
  - **Standby Current:** 10 µA (typical)  
- **Advanced Sector Protection:**  
  - Hardware and software locking options  
- **Fast Erase & Program Time:**  
  - **Sector Erase Time:** 0.7s (typical)  
  - **Byte Program Time:** 9 µs (typical)  
- **Compatibility:**  
  - JEDEC-standard pinout and command set  
  - Supports CFI (Common Flash Interface)  

This flash memory is designed for **embedded systems, industrial, and automotive applications** requiring reliable non-volatile storage.  

Would you like additional details on any specific aspect?

Application Scenarios & Design Considerations

32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Boot Block, Secure Flash Memories

Alternative Part Number

  • S29GL064N90TFI040 --: 64 Mbit parallel NOR flash in TSOP-48 with similar 70-90 ns access time and pin-compatible footprint, widely available as a drop-in replacement.
  • MX29LV640EBTI-70G --: 64 Mbit 3V parallel NOR flash with 70 ns speed grade in TSOP-48 package, functionally equivalent to the M28W640 series.
  • AM29LV640MB-90EI --: 64 Mbit boot-sector NOR flash with compatible command set and TSOP-48 pinout, a proven legacy alternative for ST M28W parts.

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