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IDT71421SA25J from IDT

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IDT71421SA25J

Manufacturer: IDT

HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

Partnumber Manufacturer Quantity Availability
IDT71421SA25J IDT 684 In Stock

Description and Introduction

HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS The **IDT71421SA25J** is a high-speed, low-power **16K x 8-bit Dual-Port Static RAM (SRAM)** manufactured by **Integrated Device Technology (IDT)**.  

### **Key Specifications:**  
- **Memory Size:** 16K × 8-bit (128 Kbits)  
- **Organization:** Dual-port (independent access for both ports)  
- **Speed:** 25 ns access time  
- **Voltage Supply:** 5V ±10%  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package:** 48-pin **PLCC (Plastic Leaded Chip Carrier)**  

### **Features:**  
- **True Dual-Port Operation:** Allows simultaneous reads/writes from both ports.  
- **Bus Compatibility:** TTL-compatible inputs and outputs.  
- **Low Power Consumption:**  
  - Active: 750 mW (typical)  
  - Standby: 100 mW (typical)  
- **Interrupt Flag:** Supports mailbox communication between ports.  
- **Semaphore (Hardware Lock):** Ensures atomic control for shared resource management.  
- **Automatic Power-Down:** Reduces power when not in use.  
- **High Noise Immunity:** CMOS technology ensures reliable operation.  

### **Applications:**  
- **Multi-processor systems**  
- **Communication buffering**  
- **Data logging & real-time processing**  
- **Embedded control systems**  

This device is designed for high-performance applications requiring fast, concurrent memory access.

Partnumber Manufacturer Quantity Availability
IDT71421SA25J IDT 122 In Stock

Description and Introduction

HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS The **IDT71421SA25J** is a high-speed, low-power 16K x 8 dual-port static RAM (SRAM) manufactured by **IDT (Integrated Device Technology)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Memory Size:** 16K x 8 (131,072 bits)  
- **Organization:** Dual-port (independent access for both ports)  
- **Supply Voltage:** 5V ±10%  
- **Access Time:** 25 ns  
- **Operating Current:** 120 mA (typical)  
- **Standby Current:** 10 mA (typical)  
- **Package:** 48-pin Ceramic DIP (Dual In-line Package)  
- **Temperature Range:** Commercial (0°C to +70°C)  

### **Descriptions:**
- The **IDT71421SA25J** is a **dual-port SRAM**, allowing simultaneous read/write operations from two independent buses.  
- It is designed for **high-performance applications** requiring fast data transfer between processors or systems.  
- The device features **non-volatile** operation, meaning data is retained as long as power is supplied.  
- It includes **on-chip arbitration logic** to prevent data corruption during simultaneous access to the same memory location.  

### **Features:**
1. **True Dual-Port Operation** – Independent read/write access on both ports.  
2. **High-Speed Access** – 25 ns access time for fast data processing.  
3. **Low Power Consumption** – Optimized for power-sensitive applications.  
4. **Bus Compatibility** – Direct interface with most microprocessors.  
5. **Automatic Power-Down** – Reduces power consumption when inactive.  
6. **Interrupt Flag** – Supports mailbox communication between ports.  
7. **Semaphore Signaling** – Hardware handshake for shared resource management.  
8. **Industrial-Grade Reliability** – Robust design for stable operation.  

This device is commonly used in **multiprocessor systems, communication buffers, and data-sharing applications**.  

Would you like additional details on pin configurations or timing diagrams?

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