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AS7C256B-15PIN
+物料清單IC SRAM 256KBIT PARALLEL 28DIP
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製造商Alliance Memory,股份有限公司。
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製造商部分 #AS7C256B-15PIN
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有存貨7848
365 天品質保證
7*24 小時服務保證
90-日售後保障
正品保證
規格
| 屬性 | 價值 |
| Part Status | Discontinued at Digi-Key |
| Digi Key Programmable | Not Verified |
| Memory Type | Volatile |
| Memory Format | SRAM |
| Technology | SRAM - Asynchronous |
| Memory Size | 256Kbit |
| Memory Organization | 32K x 8 |
| Memory Interface | Parallel |
| Write Cycle Time - Word, Page | 15ns |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 28-DIP (0.300", 7.62mm) |
| Supplier Device Package | 28-PDIP |
| Base Product Number | AS7C256 |
| Access Time | 15 ns |
概述
Description
This SRAM is designed for easy integration into various electronic systems, thanks to its JEDEC-compliant pin configuration. It operates on a single 5V power supply and includes features such as low power consumption, typically in the range of microamps in standby mode, and high reliability suitable for industrial, automotive, and communications applications.
The AS7C256B-15PIN is versatile for use in cache memory, buffer storage, and as a component for storing firmware and application data in embedded systems. Its robust performance and wide availability make it a preferred choice for designers needing reliable SRAM solutions in their electronics projects.
Equivalent
1. CY7C199D-15VXI (Cypress)
2. IS61C256AH-15N (ISSI)
3. HM62256ALP-15 (Hitachi)
4. W24257AS-15 (Winbond)
5. KM62256CLG-15 (Samsung)
These alternatives have similar configurations and performance specifications, making them suitable replacements. Always verify pin configurations and electrical characteristics to ensure compatibility.
Features
1. Capacity: 32K x 8 bits, providing a total of 256 Kb of memory.
2. Access Time: Fast access time of 15 ns, suitable for high-speed applications.
3. Low Power Consumption: Designed for low power usage both during operation and standby modes.
4. Single 5V Supply: Operates with a single supply voltage of 5V ±10%.
5. TTL-Compatible Inputs and Outputs: Ensures compatibility with TTL logic levels.
6. Data Retention: Retains data with a 2V data retention voltage, ideal for battery-backed operations.
7. Package Options: Available in various package types, including DIP, SOP, and TSOP.
8. Operating Temperature Range: Typically supports a wide temperature range, suitable for commercial or industrial applications.
9. Easy Expansion: Supports easy memory expansion through common I/O and WE (write enable) control.
These features make the AS7C256B-15PIN a versatile and efficient choice for applications requiring reliable, high-speed memory.
Pinout
1. Address Pins (A0-A14): These 15 pins are used to specify the address of the memory location to be accessed.
2. Data Inputs/Outputs (I/O0-I/O7): These 8 pins are used for data input and output, allowing data to be read from or written to the memory.
3. Chip Enable (CE): This pin activates the chip when low, allowing access to the device's memory.
4. Write Enable (WE): This pin controls writing to the memory. When low, data is written to the memory location specified by the address pins.
5. Output Enable (OE): This pin controls the output buffer, enabling data to be read from the memory when low.
6. Power Supply (VCC): This pin provides the necessary power to the SRAM, typically 5V.
7. Ground (VSS): This pin is the ground reference for the device.
These pins collectively enable the AS7C256B-15PIN to perform its SRAM functions effectively.
Manufacturer
Application
1. Embedded Systems: Provides temporary data storage for microcontrollers.
2. Industrial Control Systems: Supports real-time data processing and storage.
3. Communication Equipment: Used in routers and switches for quick data buffering.
4. Consumer Electronics: Powers fast operations in devices like printers and gaming consoles.
5. Medical Devices: Provides reliable storage for patient data in portable medical equipment.
Its speed and reliability make it suitable for applications requiring quick data retrieval and storage.