仕様
| 属性 | 値 |
| Package / Case | Tube |
| Part Status | Obsolete |
| Memory Type | Non-Volatile |
| Memory Format | FLASH |
| Technology | FLASH |
| Memory Size | 512Kb (64K x 8) |
| Memory Interface | Parallel |
| Write Cycle Time - Word Page | 10ms |
| Access Time | 90 ns |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount |
概要
Description
The AT29C512-90JU is a 64K x 8-bit (512Kb) parallel EEPROM manufactured by Atmel, designed for use in a wide range of memory applications. This EEPROM features a fast access time of 90 nanoseconds, making it suitable for high-speed applications. It operates with a single 5V power supply, which simplifies system design.
The AT29C512-90JU includes features such as efficient byte-level write capability and a built-in write protection mechanism, which helps to prevent accidental data overwrites. It also supports a hardware data protection scheme to secure the data integrity during power disruptions.
The EEPROM comes in a JEDEC standard 32-pin rectangular plastic J-lead chip carrier (PLCC) package, providing ease of integration into a variety of systems. Its endurance of 10,000 write/erase cycles ensures long-term reliability, and data retention is rated at over 10 years, making it a dependable choice for applications requiring non-volatile memory storage. This device is widely used in industrial, automotive, and consumer electronics for firmware storage and other memory needs.
The AT29C512-90JU includes features such as efficient byte-level write capability and a built-in write protection mechanism, which helps to prevent accidental data overwrites. It also supports a hardware data protection scheme to secure the data integrity during power disruptions.
The EEPROM comes in a JEDEC standard 32-pin rectangular plastic J-lead chip carrier (PLCC) package, providing ease of integration into a variety of systems. Its endurance of 10,000 write/erase cycles ensures long-term reliability, and data retention is rated at over 10 years, making it a dependable choice for applications requiring non-volatile memory storage. This device is widely used in industrial, automotive, and consumer electronics for firmware storage and other memory needs.
Equivalent
The AT29C512-90JU is a 512Kb (64K x 8) 5-volt-only Flash memory chip. Equivalent products include the SST39SF512, AM29F512, and W29C512, as they offer similar memory capacities and functionalities. Compatibility may vary based on specific application requirements like timing and packaging, so it's essential to check the datasheets for detailed specifications to ensure proper functionality in your application.
Features
The AT29C512-90JU is a 512K (64K x 8) 5-volt-only CMOS Flash Memory IC. Key features include:
1. Fast Access Time: 90 ns access time for quick data retrieval.
2. Single Voltage Operation: Operates on a single 5V power supply, simplifying power requirements.
3. Low Power Consumption: Designed for low power consumption, both in active and standby modes.
4. Endurance: Offers up to 10,000 write/erase cycles for reliable data retention.
5. Data Retention: Ensures data integrity with a retention span of up to 10 years.
6. Sector Architecture: Supports sector erase capability for efficient memory management.
7. Page Write: Facilitates page write operations to enhance writing speed.
8. Security Features: Includes hardware and software data protection modes to prevent accidental programming and erasing.
9. JEDEC Standard Package: Available in a 32-pin PLCC package, compatible with industry standards.
These features make the AT29C512-90JU suitable for a range of applications requiring non-volatile storage with moderate speed and capacity.
1. Fast Access Time: 90 ns access time for quick data retrieval.
2. Single Voltage Operation: Operates on a single 5V power supply, simplifying power requirements.
3. Low Power Consumption: Designed for low power consumption, both in active and standby modes.
4. Endurance: Offers up to 10,000 write/erase cycles for reliable data retention.
5. Data Retention: Ensures data integrity with a retention span of up to 10 years.
6. Sector Architecture: Supports sector erase capability for efficient memory management.
7. Page Write: Facilitates page write operations to enhance writing speed.
8. Security Features: Includes hardware and software data protection modes to prevent accidental programming and erasing.
9. JEDEC Standard Package: Available in a 32-pin PLCC package, compatible with industry standards.
These features make the AT29C512-90JU suitable for a range of applications requiring non-volatile storage with moderate speed and capacity.
Pinout
The AT29C512-90JU is a 512K (64K x 8) 5-volt-only, in-system reprogrammable Flash memory. It typically comes in a 32-pin PLCC (Plastic Leaded Chip Carrier) package. Here's a brief overview of its pin functions:
1. Address Inputs (A0-A15): These pins are used to address the memory locations.
2. Data Inputs/Outputs (I/O0-I/O7): These pins are used for inputting data to the memory and outputting data from the memory.
3. Chip Enable (CE): This pin activates the chip, allowing it to execute a read or write operation.
4. Output Enable (OE): This pin is used to enable the device's output drivers during read operations.
5. Write Enable (WE): This pin is used to control the write operations to the memory.
6. VCC: Power supply pin.
7. GND: Ground pin.
These functions enable the chip to store and retrieve data as needed for various applications in embedded systems and other digital electronics.
1. Address Inputs (A0-A15): These pins are used to address the memory locations.
2. Data Inputs/Outputs (I/O0-I/O7): These pins are used for inputting data to the memory and outputting data from the memory.
3. Chip Enable (CE): This pin activates the chip, allowing it to execute a read or write operation.
4. Output Enable (OE): This pin is used to enable the device's output drivers during read operations.
5. Write Enable (WE): This pin is used to control the write operations to the memory.
6. VCC: Power supply pin.
7. GND: Ground pin.
These functions enable the chip to store and retrieve data as needed for various applications in embedded systems and other digital electronics.
Manufacturer
The AT29C512-90JU is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company designs and produces a wide range of semiconductor products, including memory devices, which are used in various applications across industries such as automotive, industrial, consumer electronics, and communications.
Application
The AT29C512-90JU is a 512K (64K x 8) EEPROM used in various applications where non-volatile memory storage is crucial. Key application areas include:
1. Embedded Systems: Used for storing firmware or configuration data.
2. Consumer Electronics: Employed in devices requiring frequent updates like set-top boxes and gaming consoles.
3. Industrial Automation: Utilized for data logging and system settings.
4. Telecommunications: Supports memory needs in network equipment.
5. Automotive Systems: Used for diagnostic systems and infotainment.
6. Medical Devices: Stores critical calibration and configuration data.
7. Computing: Employed in BIOS storage and system settings.
These applications benefit from the EEPROM's ability to retain data without power and support for updates.
1. Embedded Systems: Used for storing firmware or configuration data.
2. Consumer Electronics: Employed in devices requiring frequent updates like set-top boxes and gaming consoles.
3. Industrial Automation: Utilized for data logging and system settings.
4. Telecommunications: Supports memory needs in network equipment.
5. Automotive Systems: Used for diagnostic systems and infotainment.
6. Medical Devices: Stores critical calibration and configuration data.
7. Computing: Employed in BIOS storage and system settings.
These applications benefit from the EEPROM's ability to retain data without power and support for updates.
Package
The AT29C512-90JU is a 512 Kb (65,536 x 8) 5-volt-only Flash memory with a 90ns access time. The “JU” in its part number indicates it comes in a 32-lead PLCC (Plastic Leaded Chip Carrier) package.
