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M28W320CB90N6T from ST,ST Microelectronics

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M28W320CB90N6T

Manufacturer: ST, STM

32 MBIT (2MB X16, BOOT BLOCK) 3V SUPPLY FLASH MEMORY

Partnumber Manufacturer Quantity Availability
M28W320CB90N6T ST, STM 3000 In Stock

Description and Introduction

32 MBIT (2MB X16, BOOT BLOCK) 3V SUPPLY FLASH MEMORY The **M28W320CB90N6T** is a flash memory device manufactured by **STMicroelectronics (ST)**. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Memory Type:** NOR Flash  
- **Density:** 32 Mbit (4 MB)  
- **Organization:**  
  - 32Mbit (4M x 8-bit or 2M x 16-bit)  
- **Supply Voltage:**  
  - **VCC (Core):** 2.7V to 3.6V  
  - **VCCQ (I/O):** 1.65V to 3.6V  
- **Access Time:** 90 ns  
- **Operating Temperature Range:**  
  - Industrial (-40°C to +85°C)  
- **Package:**  
  - **TSOP48** (Thin Small Outline Package, 48 pins)  
- **Interface:**  
  - **Asynchronous** (x8 or x16 data bus)  

### **Features:**  
- **High Performance:**  
  - Fast read access time (90 ns)  
  - Byte/Word programming (typical 9 µs per byte/word)  
  - Sector erase (typical 0.7s per sector)  
- **Flexible Sector Architecture:**  
  - **Uniform 64 KB sectors** (total of 64 sectors)  
  - **Boot Block Options:** Top or bottom configuration  
- **Low Power Consumption:**  
  - Standby current: 1 µA (typical)  
  - Active read current: 15 mA (typical)  
- **Reliability & Endurance:**  
  - **100,000 erase/program cycles** per sector  
  - **20-year data retention**  
- **Hardware & Software Protection:**  
  - **Block locking** for secure code/data  
  - **WP# (Write Protect)** pin for hardware protection  
  - **OTP (One-Time Programmable)** sector for security  

### **Applications:**  
- Embedded systems  
- Automotive electronics  
- Networking equipment  
- Industrial control systems  

This device is designed for high-performance, low-power applications requiring reliable non-volatile storage.

Application Scenarios & Design Considerations

32 MBIT (2MB X16, BOOT BLOCK) 3V SUPPLY FLASH MEMORY

Alternative Part Number

  • S29GL032N90TFI040 --: 32 Mbit parallel NOR flash in TSOP-48 with 90 ns access time, functionally compatible with the M28W320CB and widely available.
  • MX29LV320EBTI-90G --: 32 Mbit 3V parallel NOR flash, 90 ns speed grade, TSOP-48 package, pin-compatible replacement for the M28W320CB90N6T.
  • SST39VF3201B-70-4I-EKE --: 32 Mbit parallel NOR flash in TSOP-48 with similar interface and voltage, suitable as a drop-in alternative with faster 70 ns timing.
  • AM29LV320DB-90EI --: 32 Mbit low-voltage NOR flash with 90 ns access time and TSOP-48 footprint, widely used as an alternative to ST M28W320 devices.

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