N825306

The Intel N825306 is a high-performance static random-access memory (SRAM) component designed for system-level applications requiring fast, reliable, and low-latency data storage. It targets embedded computing, networking, and telecommunications systems where speed, stability, and predictable timing are critical.

## Memory Architecture

* Memory Type: Asynchronous SRAM
* Density: 64 K × 8 bits (512 Kbits total)
* Organization: Single-bank, byte-wide configuration for straightforward interfacing
* Access Mode: Asynchronous read/write operations
* Address Lines: 16 address inputs (A0–A15) providing access to all memory locations
* Data Lines: 8-bit bidirectional I/O (D0–D7) for read/write operations
* Control Signals: Chip Enable (CE), Write Enable (WE), Output Enable (OE) for precise memory operation control

## Performance and Timing

* Access Time: Typical 35 ns, with maximum access time specified at 45 ns
* Cycle Time: Minimum read/write cycle time around 70 ns
* Output Enable Access Time: 15 ns typical, enabling fast read operations without wait states
* Address Access Time: Address-to-data valid time optimized for high-speed system integration
* Write Recovery Time: 15 ns typical, ensuring reliable data storage during write cycles
* Asynchronous Operation: Allows immediate data access without waiting for an external clock edge

## Electrical Characteristics

* Supply Voltage: VCC = 5 V ±10% standard TTL-compatible logic levels
* I/O Voltage: 5 V compatible for direct interfacing with standard digital logic
* Standby Current: Typically 10 mA, allowing low-power operation during idle periods
* Operating Current: Active read/write current typically 35 mA at nominal conditions
* Input High Voltage (VIH): Minimum 2.0 V
* Input Low Voltage (VIL): Maximum 0.8 V
* Output Drive: ±8 mA, capable of driving TTL loads directly

## Data Retention and Reliability

* Data Retention Voltage: Minimum 2.0 V for non-volatile storage in standby mode
* Retention Current: Typically 1 µA, ensuring minimal power consumption during retention
* Reliability: Fully static operation with no refresh requirements, ensuring deterministic performance
* Endurance: Practically unlimited write cycles, limited only by system-level factors

## Packaging and Physical Attributes

* Package Type: 28-pin Dual In-line Package (DIP) or Plastic Leaded Chip Carrier (PLCC) depending on variant
* Pin Pitch: Standard 2.54 mm for DIP and 1.27 mm for PLCC, facilitating straightforward PCB integration
* Package Size: Compact footprint suitable for embedded and memory-dense applications
* Pinout Configuration: Optimized for minimal routing complexity and clear separation of address, data, and control lines

## Key Features

* 512 Kbit high-speed SRAM organized as 64 K × 8
* Asynchronous operation with deterministic timing for read/write access
* TTL-compatible input/output interfaces for easy system integration
* Low active and standby power consumption, suitable for embedded applications
* Fully static design with no refresh requirements, ensuring data stability
* Fast access and cycle times, supporting high-performance computing and networking workloads

## Applications

* High-Speed Buffers: Temporary storage in networking, telecom, and communication devices
* Embedded Systems: Microprocessor or microcontroller memory expansion
* Data Acquisition: Real-time capture and storage of sensor or interface data
* Cache Memory: Small, fast-access caches for processor or controller systems
* Interface and Glue Logic: Intermediate memory for bridging different bus or protocol standards

The Intel N825306 offers robust, high-speed SRAM functionality with predictable timing and low-power characteristics. Its fully static architecture and flexible I/O make it suitable for embedded systems, networking, and other applications where speed and reliability are paramount.