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IDT7140LA55J from IDT

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IDT7140LA55J

Manufacturer: IDT

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM

Partnumber Manufacturer Quantity Availability
IDT7140LA55J IDT 6000 In Stock

Description and Introduction

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM The **IDT7140LA55J** is a high-speed, low-power **16K x 8 Dual-Port Static RAM (SRAM)** manufactured by **Integrated Device Technology (IDT)**.  

### **Key Specifications:**  
- **Organization:** 16K x 8 (131,072 bits)  
- **Operating Voltage:** 5V ±10%  
- **Access Time:** 55ns  
- **Power Consumption:**  
  - Active: 1W (max)  
  - Standby: 100mW (max)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial)  
- **Package:** 48-pin **PLCC (Plastic Leaded Chip Carrier)**  

### **Features:**  
- **True Dual-Port Operation:** Allows simultaneous access from both ports.  
- **Independent Control Pins:** Each port has separate address, data, and control signals.  
- **Bus Arbitration Logic:** Prevents contention during simultaneous writes.  
- **Interrupt Flag:** Supports mailbox communication between processors.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard logic levels.  
- **High-Speed Performance:** 55ns access time for fast data transfers.  
- **Low-Power CMOS Technology:** Reduces power consumption in standby mode.  

This SRAM is commonly used in **multiprocessor systems, communication buffers, and shared memory applications**.  

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

Application Scenarios & Design Considerations

HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM

Alternative Part Number

  • CY7C006A-55JC --: Dual-port SRAM with comparable 55 ns access time and 5 V operation, pin-compatible with the IDT7140 series and widely available.
  • AS7C34096A-55JCN --: Alliance Memory specializes in drop-in replacements for legacy IDT SRAMs; same 55 ns speed grade and PLCC package, suitable as a direct substitute.
  • IS61LV256-55J --: ISSI asynchronous SRAM offering similar 55 ns access time and 5 V interface, a practical alternative when the IDT part is unavailable.

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