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AT49BV040B-JU
+StücklisteIC FLASH 4MBIT PARALLEL 32PLCC
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HerstellerMikrochip-Technologie
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Herstellerteil #AT49BV040B-JU
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Paket PLCC-32
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Auf Lager7362
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Spezifikationen
| Attribut | Wert |
| Package | Tube |
| ProductStatus | Obsolete |
| MemoryType | Non-Volatile |
| MemoryFormat | FLASH |
| Technology | FLASH |
| MemorySize | 4Mb (512K x 8) |
| MemoryInterface | Parallel |
| WriteCycleTime-WordPage | 120µs |
| AccessTime | 70 ns |
| Voltage-Supply | 2.7V ~ 3.6V, 4.5V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C (TC) |
| MountingType | Surface Mount |
| Package/Case | 32-LCC (J-Lead) |
Übersicht
Description
Key features include a single 3V power supply, fast access times of 55 ns, and a sector architecture that allows individual sectors to be erased without affecting the rest of the chip—useful for applications requiring frequent updates. The chip supports a hardware data protection feature to prevent accidental programming or erasure, and offers a low-power standby mode to save energy.
The AT49BV040B-JU is compatible with the JEDEC standard for pin configuration and commands, facilitating integration with various systems. It typically comes in a standard 32-pin PLCC (Plastic Leaded Chip Carrier) package, making it easy to incorporate into existing circuit boards. This chip is suitable for embedded systems, portable devices, and other applications requiring reliable, low-voltage flash memory.
Equivalent
1. SST39VF040 - from Microchip Technology
2. M29F040B - from STMicroelectronics
3. AM29F040B - from AMD/Spansion (now Cypress Semiconductor)
4. W29C040 - from Winbond
It's important to verify specifications and pin compatibility to ensure a proper replacement.
Features
1. Voltage Range: Operates at a single voltage range of 2.7V to 3.6V, making it suitable for battery-operated applications.
2. Fast Access Times: Offers fast read access times, typically around 70 ns.
3. Low Power Consumption: Supports low power consumption with standby and read currents optimized for efficiency.
4. Sector Architecture: Features sector erase architecture, allowing sectors to be erased independently for flexible data management.
5. Boot Block: Includes a boot block for storing boot code, enhancing functionality in embedded systems.
6. Data Protection: Has features such as hardware and software data protection to prevent inadvertent programming or erasure.
7. Endurance: Provides high endurance with typical erase and program cycles ranging up to 10,000.
8. Package Type: Comes in a 32-pin PLCC package.
These features make the AT49BV040B-JU suitable for various applications, including embedded systems, consumer electronics, and portable devices.
Pinout
Key functions of the AT49BV040B-JU include:
- Read operations to access stored data.
- Byte and sector programming for writing data.
- Sector erase and chip erase functions to delete stored data.
- Hardware and software data protection mechanisms to prevent accidental overwriting.
The IC operates with a single 2.7-3.6V power supply, making it suitable for portable and low-power applications. It supports rapid data access timings, which is essential for performance-critical applications. Additionally, the device includes a reset pin for system reliability and several control pins for interfacing with microcontrollers or other digital systems.
Manufacturer
Application
1. Embedded Systems: For storing firmware or system software that needs to be updated without replacing hardware.
2. Consumer Electronics: In devices like digital cameras and MP3 players for storing user settings or media.
3. Automotive: For storing calibration data and firmware in engine control units.
4. Networking Equipment: Used in routers and switches for firmware and configuration storage.
5. Industrial Control: For logging data and storing control algorithms in PLCs and other control systems.
Its low power consumption and in-system programming capabilities make it versatile for various applications.