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IDT70121-S25J from IDT

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IDT70121-S25J

Manufacturer: IDT

HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT

Partnumber Manufacturer Quantity Availability
IDT70121-S25J,IDT70121S25J IDT 65 In Stock

Description and Introduction

HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT The part **IDT70121-S25J** is a **High-Speed 16K x 16 Dual-Port Static RAM** manufactured by **Integrated Device Technology (IDT)**.  

### **Key Specifications:**  
- **Organization:** 16K x 16 (262,144 bits)  
- **Speed:** 25 ns access time  
- **Supply Voltage:** 5V ±10%  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  
- **Package:** 52-pin PLCC (Plastic Leaded Chip Carrier)  

### **Features:**  
- **True Dual-Port Operation:** Allows simultaneous access from both ports.  
- **Bus Compatibility:** TTL-compatible inputs and outputs.  
- **Interrupt Control:** Supports mailbox communication with interrupt flags.  
- **Semaphore (Hardware Lock) Mechanism:** Ensures atomic operation for shared resource management.  
- **Automatic Power-Down:** Reduces power consumption when inactive.  
- **High-Speed Access:** 25 ns maximum access time.  
- **Industrial Standard Pinout:** Compatible with other 16K x 16 Dual-Port RAMs.  

### **Applications:**  
- Multiprocessor systems  
- Shared memory architectures  
- Communication buffering  
- Data acquisition systems  

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

Application Scenarios & Design Considerations

HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT

Alternative Part Number

  • CY7C132-25JC --: Pin-compatible 4K x 18 dual-port SRAM with 25 ns access time, direct functional replacement for the IDT70121 dual-port RAM.
  • AS7C132-25JC --: Second-source dual-port SRAM in the same 4K x 18 organization and 25 ns speed grade, drop-in compatible with the IDT70121-S25J.
  • IS61C1024-25J --: High-speed 25 ns SRAM from a different series that matches the access time and package, usable as an alternative when dual-port features are not strictly required.

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