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M50FW040 from ST,ST Microelectronics

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M50FW040

Manufacturer: ST

4 MBIT (512KB X8, UNIFORM BLOCK) 3V SUPPLY FIRMWARE HUB FLASH MEMORY

Partnumber Manufacturer Quantity Availability
M50FW040 ST 5 In Stock

Description and Introduction

4 MBIT (512KB X8, UNIFORM BLOCK) 3V SUPPLY FIRMWARE HUB FLASH MEMORY The M50FW040 is a 4 Mbit (512Kb x8) Flash memory device manufactured by STMicroelectronics.  

### **Key Specifications:**  
- **Memory Size:** 4 Mbit (512Kb x8)  
- **Supply Voltage:** 2.7V to 3.6V  
- **Access Time:** 70 ns (max)  
- **Sector Architecture:**  
  - Eight 64 Kbyte sectors  
  - One 16 Kbyte sector  
  - Two 8 Kbyte sectors  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:**  
  - 44-pin PLCC  
  - 48-pin TSOP  

### **Features:**  
- **Single Voltage Operation:** 3V read, program, and erase  
- **Low Power Consumption:**  
  - Active Read Current: 15 mA (typical)  
  - Standby Current: 20 µA (typical)  
- **Flexible Sector Erase:** Individual sector or full-chip erase  
- **Hardware Data Protection:**  
  - VPP pin for write protection  
  - Power-on reset for unintended writes  
- **Embedded Algorithms:**  
  - Byte programming (10 µs typical)  
  - Sector erase (1s typical)  
  - Chip erase (10s typical)  
- **Compatibility:** JEDEC-standard pinout and command set  
- **Endurance:** 100,000 write/erase cycles per sector  
- **Data Retention:** 20 years  

This device is designed for embedded systems requiring non-volatile storage with fast access and low power consumption.

Application Scenarios & Design Considerations

4 MBIT (512KB X8, UNIFORM BLOCK) 3V SUPPLY FIRMWARE HUB FLASH MEMORY

Alternative Part Number

  • SST39VF040 --: 4 Mbit parallel NOR flash in the same 32-pin TSOP/PLCC footprint with compatible command set, widely used as a drop-in replacement for M50FW040.
  • AM29LV040B --: 4 Mbit 3V parallel NOR flash with JEDEC-standard pinout and command interface, a proven second-source alternative for the M50FW040.
  • MX29LV040C --: 4 Mbit low-voltage parallel NOR flash offering equivalent density, voltage range and pinout, suitable as a cost-effective substitute.

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