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MBM29F400BC-70 from FUJITSU,Fujitsu Microelectronics

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MBM29F400BC-70

Manufacturer: FUJITSU, FUJI, FUJ

FLASH MEMORY 4M (512K x 8/256K x 16) BIT

Partnumber Manufacturer Quantity Availability
MBM29F400BC-70,MBM29F400BC70 FUJITSU, FUJI, FUJ 6028 In Stock

Description and Introduction

FLASH MEMORY 4M (512K x 8/256K x 16) BIT The MBM29F400BC-70 is a flash memory chip manufactured by Fujitsu (FUJI). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** Fujitsu (FUJI)  
- **Part Number:** MBM29F400BC-70  
- **Memory Type:** Flash (NOR)  
- **Density:** 4 Mbit (512K x 8-bit or 256K x 16-bit)  
- **Supply Voltage:** 5V ± 10%  
- **Access Time:** 70 ns  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 44-pin SOP (Small Outline Package)  
- **Interface:** Parallel  

### **Descriptions:**
- The MBM29F400BC-70 is a high-performance 5V-only flash memory device.  
- It supports both **byte (x8)** and **word (x16)** configurations, selectable via a dedicated **BYTE# pin**.  
- Features a **sector erase architecture**, allowing individual sectors to be erased without affecting others.  
- Designed for applications requiring reliable non-volatile storage, such as embedded systems, automotive, and industrial devices.  

### **Features:**
- **Single 5V Power Supply** (no additional voltage required for programming/erasing).  
- **Fast Access Time:** 70 ns.  
- **Low Power Consumption:**  
  - Active current: 30 mA (typical)  
  - Standby current: 100 µA (typical)  
- **Sector Erase Capability:**  
  - Eight 4K-word (8K-byte) sectors  
  - One 8K-word (16K-byte) sector  
  - Fifteen 32K-word (64K-byte) sectors  
- **Hardware Data Protection:**  
  - WP# pin for write protection  
  - Reset (RESET#) pin for aborting operations  
- **Reliable Endurance:** 100,000 program/erase cycles per sector.  
- **Data Retention:** 20 years minimum.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

FLASH MEMORY 4M (512K x 8/256K x 16) BIT

Alternative Part Number

  • AM29F400BB-70SC --: Pin-compatible 4 Mbit flash from the AMD Am29F series that the Fujitsu MBM29F400 is based on; same 70 ns speed and command set, widely available second-source.
  • SST39SF040-70-4C-PH --: 4 Mbit 5V parallel flash with 70 ns access time; different series naming, suitable drop-in for many legacy 29F400 sockets after timing check.
  • MX29F400CBTC-70G --: 4 Mbit CMOS flash, 70 ns, industry-standard 29F400 pinout and command compatibility; alternative vendor series for legacy designs.
  • SST39SF040-70-4C-NHE --: 4 Mbit 5V parallel NOR flash with 70 ns access time, widely available and pin-compatible in the same TSOP-32 footprint for most designs.
  • MX29F400CBTI-70G --: 4 Mbit 5V NOR flash, 70 ns, TSOP-48/TSOP-32 options, commonly used as a drop-in replacement for Fuji MBM29F400 series.
  • MX29F400BTC-70G --: 4 Mbit 5V CMOS flash with 70 ns speed and industry-standard pinout matching the 29F400 family; good second-source availability for legacy designs.

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