2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory The **M29F002BB90P1** is a **2 Mbit (256K x 8-bit) Flash memory** manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Memory Size:** 2 Mbit (256K x 8-bit)
- **Technology:** NOR Flash
- **Supply Voltage:** 5V ± 10%
- **Access Time:** 90 ns
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** PLCC32 (Plastic Leaded Chip Carrier)
- **Sector Architecture:**
- Eight 32Kbyte sectors
- One 32Kbyte boot sector (top or bottom configuration)
- **Endurance:** 100,000 write/erase cycles per sector
- **Data Retention:** 20 years
### **Descriptions:**
- The **M29F002BB90P1** is a **5V-only Flash memory** designed for embedded systems requiring non-volatile storage.
- It supports **byte-wide read and write operations** with a standard microprocessor interface.
- Features **asynchronous operation**, making it compatible with various microcontrollers.
- Includes **hardware and software data protection** mechanisms to prevent accidental writes.
### **Features:**
- **Single Voltage Operation:** 5V for read, program, and erase.
- **Low Power Consumption:**
- Active current: 30 mA (typical)
- Standby current: 100 µA (typical)
- **Sector Erase Capability:** Allows individual sector erasure.
- **Automatic Programming & Erase Algorithms:** Built-in for simplified operation.
- **Status Register:** Provides programming and erase status.
- **Compatibility:** JEDEC-standard pinout and command set.
This Flash memory is commonly used in **industrial, automotive, and computing applications** requiring reliable non-volatile storage.
(Source: STMicroelectronics datasheet for M29F002BB90P1.)
