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TB28F400BVB80

Manufacturer: INTEL

4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

Partnumber Manufacturer Quantity Availability
TB28F400BVB80 INTEL 5117 In Stock

Description and Introduction

4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY The **TB28F400BVB80** is a flash memory component manufactured by **Intel**. Below are its specifications, descriptions, and features based on available factual information:

### **Manufacturer:**  
- **Intel Corporation**  

### **Specifications:**  
- **Memory Type:** Flash (NOR)  
- **Density:** 4 Mbit (512K x 8 or 256K x 16)  
- **Supply Voltage:** 5V ±10%  
- **Access Time:** 80 ns  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Package Type:** 40-pin PDIP (Plastic Dual In-line Package)  
- **Interface:** Parallel  

### **Descriptions:**  
- The **TB28F400BVB80** is a **5V-only** flash memory device designed for embedded systems and other applications requiring non-volatile storage.  
- It supports both **8-bit and 16-bit** data bus configurations.  
- Features **asynchronous read operations** with an access time of **80 ns**.  
- Includes **block locking** for software data protection.  

### **Features:**  
- **Single 5V Power Supply** (No additional voltage required for programming/erasing)  
- **High Performance** (80 ns access time)  
- **Flexible Sector Architecture** (Supports uniform or boot block configurations)  
- **Embedded Algorithms** (Automatic program/erase operations)  
- **Hardware & Software Data Protection** (Prevents accidental writes)  
- **Compatibility** (JEDEC-standard pinout and command set)  
- **Extended Endurance** (Supports up to 100,000 program/erase cycles per sector)  

This information is based on Intel’s official documentation for the **TB28F400BVB80** flash memory chip.

Application Scenarios & Design Considerations

4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

Alternative Part Number

  • AM29F400BB-90SC --: Same 4 Mbit 5V NOR flash density and x8/x16 organization, pin-compatible command set, widely available as a direct functional substitute.
  • M29F400BB-90N6 --: Equivalent 4 Mbit 5V parallel NOR flash with compatible byte/word modes and similar access timing, suitable drop-in replacement.
  • SST39SF040-70-4C-PH --: 4 Mbit 5V parallel flash with similar interface and timing; requires minor pin/command verification but is a viable alternative source.
  • SST39SF040-70-4C-PHE --: 4 Mbit flash with compatible interface and timing, suitable as a functional substitute where exact pinout allows.

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