4M (512K X 8/256K X 16) BIT The MBM29F400BC-90PF is a flash memory chip manufactured by FUJITSU. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** FUJITSU
- **Model Number:** MBM29F400BC-90PF
- **Memory Type:** Flash Memory (NOR Flash)
- **Density:** 4 Mbit (512K x 8-bit or 256K x 16-bit)
- **Supply Voltage:** 5V ± 10%
- **Access Time:** 90 ns
- **Package Type:** 44-pin Plastic SOP (Small Outline Package)
- **Operating Temperature Range:** -40°C to +85°C
- **Sector Structure:**
- Eight 8KByte uniform sectors
- One 16KByte sector
- Seven 64KByte sectors
- **Endurance:** Minimum 100,000 write/erase cycles per sector
- **Data Retention:** 20 years minimum
### **Descriptions:**
- The MBM29F400BC-90PF is a 5V-only, 4Mbit flash memory device with flexible sector architecture.
- It supports both byte-wide (x8) and word-wide (x16) configurations.
- Designed for high-performance embedded applications requiring non-volatile storage.
### **Features:**
- **Single 5V Power Supply** for read, program, and erase operations.
- **Low Power Consumption:**
- Active Read Current: 30 mA (typical)
- Standby Current: 1 µA (typical)
- **Fast Erase & Program Times:**
- Sector Erase Time: 1 second (typical)
- Chip Erase Time: 10 seconds (typical)
- Byte/Word Program Time: 10 µs (typical)
- **Hardware Data Protection:**
- VPP (Programming Voltage) pin for write protection.
- Automatic sector protection during power transitions.
- **Command Register Architecture:**
- Compatible with JEDEC-standard flash interface.
- **Toggle Bit & Data Polling:**
- Provides status detection for program/erase operations.
This information is strictly based on the manufacturer's datasheet and technical documentation.
